Client Class

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The Client class is designed for use on mobile devices and facilitates EMV® 3-D Secure authentication.

Syntax

ipworks3ds.client()

Remarks

The Client class is a counterpart to the 3DS Server class. It is designed for use on mobile devices and supports operations that facilitate EMV® 3-D Secure authentication in both frictionless and challenge flows.

Preparing the Authentication Request

To begin, device specific information must be collected and prepared for transmission to the directory server. This can be done by calling the AddDeviceParam method. Consult the EMV® 3-D Secure Specifications for more details about applicable device parameters for each particular operating system.

The GetAuthRequest method is used to obtain the request message to be send to the directory server. GetAuthRequest encrypts the device info and prepares all the data necessary to be sent by the 3DS Server class in the SendAuthRequest method.

After calling this method, the returned data must be transmitted via a separate secure channel to the server where 3DS Server is being used.

The following properties are required before calling the method:

PropertyDescription
DeviceParams Contains device information parameters. Add parameters via AddDeviceParam.
DirectoryServerCert Used to encrypt the device parameters.
DirectoryServerId Identifies the DirectoryServerCert within the directory server.
SDKAppId A UUID for the specific installation.
SDKReferenceNumber An Id assigned by EMVCo to identify the vendor and software version.

Calling this method returns required information used by 3DS Server to send the authentication request. Transmit the value returned by this method to the system where 3DS Server is used. The method used to transmit this value is outside the scope of the class.

See SendAuthRequest for details on sending the authentication request after transmitting the data to the 3DS Server.

Calling this method also populates SDKTransactionId which uniquely identifies this transaction and must be used in subsequent calls relating to this transaction, such as SendChallengeRequest.

Interaction With the 3DS Server Class

As mentioned above, the request to the Directory Server must be made by the 3DS Server class which resides on a server under control of the merchant. A web server is required even for app-based authentication both to send the authentication request and to be notified of authentication results later in the flow.

It is expected that a secure channel can be established between the app using the Client class and the server where the 3DS Server class resides in order to transfer information freely.

Sending the Authentication Request

The act of sending the authentication request takes place with the 3DS Server class.

SendAuthRequest begins the 3-D Secure transaction flow by sending an authentication request to the DirectoryServerURL.

After calling this method, check TransactionStatus to determine if the cardholder is authenticated (frictionless flow) or further cardholder interaction is required to complete the authentication (challenge flow).

Prior to calling SendAuthRequest, data must to be collected to facilitate fraud checks by the ACS. The following properties are applicable for both app-based and browser-based flows:

  • AcquirerBIN (required)
  • AcquirerMerchantId (required)
  • CardholderName (required)
  • CardNumber (required)
  • DirectoryServerURL (required)
  • MerchantCategoryCode (required)
  • MerchantCountryCode (required)
  • MerchantName (required)
  • PurchaseAmount (required)
  • PurchaseDate (required)
  • RequestorId (required)
  • RequestorName (required)
  • RequestorURL (required)
  • ResultsURL (required)
  • AccountType
  • AuthenticationIndicator
  • BillingAddress*
  • CardholderEmail
  • CardholderHomePhone
  • CardholderMobilePhone
  • CardholderWorkPhone
  • DecoupledMaxTimeout
  • DecoupledRequestIndicator
  • DeviceChannel
  • MessageCategory
  • PurchaseCurrency
  • PurchaseExponent
  • ServerOperatorId
  • ServerTransactionId
  • ShippingAddress*
  • ThreeRIIndicator

App-Based Flow

In the app-based flow, device specific information is prepared by the 3DS SDK on the customer's device. This is transmitted to the 3DS Server class via a secure channel, the specifics of which are outside the scope of the classs. Set ClientAuthRequest to this data prepared by the 3DS SDK.

Browser-Based Flow

Before calling this method, first check the cached card-range data to determine if a CardRangesMethodURL has been set by the ACS. Card range data may be retrieved by calling RequestCardRanges.

If no CardRangesMethodURL is present for the given card, set MethodCompletionIndicator to U.

If a CardRangesMethodURL has been specified by the ACS for the card number, the URL must be loaded in the cardholder's browser to allow the ACS to collect additional browser information for risk-based decision making. See the GetMethodData for further details.

Once the method URL invocation is complete, the authentication request may be sent. If the method URL invocation failed, set MethodCompletionIndicator to N before calling SendAuthRequest.

The following additional properties are applicable in browser-based flow:

  • NotificationURL (required)
  • BrowserAcceptHeader (required)
  • BrowserLanguage (required)
  • BrowserScreenHeight (required in 2.1.0, required in 2.2.0 and 2.3.1 if BrowserJavaScriptEnabled is true)
  • BrowserScreenWidth (required in 2.1.0, required in 2.2.0 and 2.3.1 if BrowserJavaScriptEnabled is true)
  • BrowserTimeZone (required in 2.1.0, required in 2.2.0 and 2.3.1 if BrowserJavaScriptEnabled is true)
  • BrowserUserAgent (required)
  • BrowserIPAddress (conditional)
  • BrowserJavaEnabledVal (required in 2.1.0, required in 2.2.0 and 2.3.1 if BrowserJavaScriptEnabled is true)
  • BrowserJavaScriptEnabledVal (not valid in 2.1.0, required in 2.2.0 and 2.3.1)
  • BrowserScreenColorDepth (required in 2.1.0, required in 2.2.0 and 2.3.1 if BrowserJavaScriptEnabled is true)
  • AcceptLanguage (2.3.1 only)
  • AcquirerCountryCode (2.3.1 only)

Response Handling

After calling this method the TransactionStatus property holds the result. Possible values are:

Transaction Status Description
Y Authenticated successfully
C Cardholder challenge required
N Not authenticated
A Not authenticated, but a proof of authentication attempt was generated in AuthenticationValue
U Not authenticated due to technical or other issue
R Not authenticated because the issuer is rejecting authentication
D Challenge required; decoupled authentication confirmed
I Informational only; 3DS Requestor challenge preference acknowledged
S Challenge using SPC

If the transaction is authenticated (Y or A), no further steps are required. The flow is considered frictionless and the 3-D Secure processing is complete. If processing a payment, the AuthenticationValue and AuthenticationECI values can be included as proof of 3-D Secure authentication.

If the transaction requires a cardholder challenge (C, D or S), further steps are required.

If the transaction is not authenticated, TransactionStatusReason may contain details about the reason.

The following properties are applicable after calling this method:

Response Handling - App-Based Flow

After calling this method, ClientAuthResponse is populated with data to be transmitted back to the 3DS SDK. If a challenge is required, the ClientAuthResponse data is used by the 3DS SDK to start when initiating the challenge process.

The 3DS Server is responsible for indicating to the 3DS SDK the results of the SendAuthRequest process, and whether or not a challenge is required. Exactly how this is done is outside the scope of the classs themselves. The response to the 3DS SDK over the secure channel should include information on what to do next.

Note: The TransactionStatus is also populated in the 3DS Server class and may be inspected prior to transmitting ClientAuthResponse back to the 3DS SDK.

Response Handling - Browser-Based Flow

If TransactionStatus is C, then additional steps are required to complete the authentication. The GetChallengeRequest method should be called next to obtain data to be sent to the ACSURL in an authentication window in the customer's browser. Once authentication is complete, the ACS will post the results to the ResultsURL value that was specified when calling SendAuthRequest.

See the GetChallengeRequest method for more details.

If TransactionStatus is D, then decoupled authentication has been accepted by the ACS. DecoupledConfirmationIndicator will have a value of Y as well. Authentication will happen outside of the 3-D Secure flow and, when complete, the ACS will post the results to the ResultsURL that was specified when calling SendAuthRequest.

The DecoupledTimeRemaining value, which is calculated based on the DecoupledMaxTimeout value sent in the initial authentication request, can be checked to see the amount of time remaining before decoupled authentication must be completed. If the ACS does not post the results before this value runs out, it can be assumed that decoupled authentication was not successful.

SPC-Based Authentication

SPC (Secure Payment Confirmation) provides a method to perform a challenge using preestablished FIDO credentials when using a Browser. The SPC authentication can be initiated by the 3DS Requestor via an extra AReq/ARes message pair or by the ACS via a standard Browser Challenge Flow.

For an SPC authentication to execute correctly, the following prerequisites apply:

  1. The ACS has an enrolled FIDO authenticator on the device for this Cardholder.
  2. The 3DS Requestor and/or the ACS have detected that the Cardholder Browser supports the related SPC APIs (allow="payment *; publickey-credentialsget *"). For the ACS, this information can be obtained via the Browser User Agent data element or via data obtained via the 3DS Method.

SPC-based authentication can be enabled with the following additions:

Prior to sending the initial authentication request packet (AReq) using the SendAuthRequest method, the ThreeDSRequestorSpcSupport configuration setting should be set to Y to indicate that SPC is supported by the 3DS Requestor.

If SPC is accepted by the ACS, the resulting TransactionStatus should be S. The response will also contain a list of enrolled FIDO (WebAuthn) credentials associated with the cardholder, and SPC transaction data. This data is available in the following configuration settings:

If a new instance of the Server component will be used after authentication to send the second AReq, the AuthenticationInformation value should be saved to be used later.

This information is relayed to the 3DS Requestor implementation, and the 3DS Requestor invokes the SPC authentication (SPC API) against the WebAuthn Credential list. The cardholder authenticates using the FIDO authenticator on their device, and the 3DS Requestor retrieves the Assertion Data from the SPC API call.

The 3DS Server is then configured to includes this FIDO Assertion Data is then included in a new authentication request by setting the ReqAuthData and a ReqAuthMethod of 09. If the AuthenticationInformation value was saved earlier, it can be set via the same configuration setting. If the 3DS Requestor encounters an error during SPC API invokation, this can be indicated using the SPCIncompletionIndicator.

The SendAuthRequest method should then be called again to transmit this data to the ACS (by way of the DS) in a second AReq.

When SendAuthRequest returns, the 3DS Server proceed the same as the regular browser-based flow when the ARes is returned.

When SPC authentication is to be performed, the authenticaton must be completed within 9 minutes. The component will automatically start an internal timer that can be checked using the CheckSPCTimeout configuration setting. This will return the number of seconds left for SPC authentication to complete. If the time has expired before receiving the Assertion Data from the 3DS Requestor, checking this configuration setting will cause the component to automatically send the second AReq message with an SPCIncompletionIndicator value of 03, indicating that SPC authentication timed out.

Note that SPC-based authentication is only available when a ProtocolVersion of 2.3.1 is used.

Processing the Authentication Response

After the response to the authentication request is received from the 3DS Server class, call CheckAuthResponse to verify and parse the response. See the 3DS Server's SendAuthRequest method for details about obtaining the response.

Before calling this method, ACSRootCerts must be populated with the root certificates used by the ACS to sign the response. This method will validate the signature of the signed content if present.

After calling this method, inspect TransactionStatus to determine if the transaction requires a challenge. If TransactionStatus is C, a challenge is required and SendChallengeRequest should be called to proceed with the challenge flow. If TransactionStatus is D, decoupled authentication will take place outside of the 3-D Secure flow and the results will be posted to the 3DS Server.

If TransactionStatus is Y or A, the transaction is complete.

Challenge Interaction

If TransactionStatus is C, a challenge is required. The challenge takes place between the cardholder and the ACS. During this interaction the class will communicate directly with the ACS from the app where it is used to exchange information.

SendChallengeRequest begins the challenge flow. SendChallengeRequest sends the Challenge Request to the ACS when a challenge is required.

When the TransactionStatus is C after calling CheckAuthResponse, a challenge to the cardholder is required. This method sends the challenge request and parses the response. The ACS may provide multiple challenges to the cardholder during this process. As a result this method may need to be called multiple times throughout the authentication process.

After this method is called, check ChallengeComplete to determine if the challenge process is complete. If it is complete (True), check TransactionStatus to determine the outcome. If ChallengeComplete is False, additional challenge interaction is required.

First Request

The first time this method is called, information about the required challenge is obtained from the ACS. The ACS connection information is automatically set when CheckAuthResponse is called; there is no need to specify any ACS connection information.

All required properties for the first call to this method are automatically set after CheckAuthResponse is called. If the transaction has been canceled, set ChallengeCancellationIndicator to inform the ACS.

After calling this method, the ACS will respond with details about the challenge to be presented to the cardholder. The ACSUIType property indicates the way the ACS will interact with the cardholder. The ChallengeComplete property will be False after the first call to this method since the challenge interaction is not yet complete.

The following properties are applicable when ACSUIType is Text (01), Single-Select (02), or Multi-Select (03):

Use the values in the above properties to populate values in the native UI in the app. The UI must follow the guidelines defined in the EMV® 3-D Secure specification.

The following properties are applicable when ACSUIType is Out-of-Band (04):

Use the values in the above properties to populate values in the native UI in the app. The UI must follow the guidelines defined in the EMV® 3-D Secure specification.

The following properties are applicable when ACSUIType is HTML (05):

In the case of an HTML interaction, the app should create a webview and populate this with the HTML in ACSHTML.

As per the EMV® 3-D Secure specification, the HTML UI is presented to the cardholder via a web view which remains in control of the app. The app must intercept any remote URL requests made from within the web view, and instead handle them within the app. Preventing the cardholder from making requests in the web view to another server is critical to the security of the environment. According to the EMVCo specification, intercepting these requests has two effects:

  • Prevents malicious HTML from redirecting a user to a phishing site.
  • Conceptually puts the web view form under the control of the ACS, rather than the app.
The following are key points mentioned in the EMV 3DS specification:
  • Navigation attempts from within the web view must be captured by the app and handled internally. This includes all requests including images, javascript files, css, etc.
  • The web view element is not utilized as a browser, but as a UI element whose content is provided by the ACS.
Please refer to the EMV 3DS specification for more details and guidance on this topic. This information is not meant to replace the text in the EMV 3DS specification.

Second Request

The second time this method is called, the purpose is to provide a response to the ACS. At this point the customer should have responded to the challenge provided by the ACS in the response to the first call. If the transaction has been canceled, set ChallengeCancellationIndicator to inform the ACS. The following properties are applicable when calling this method the second time:

When ACSUIType is Text (01) or HTML (05), set ChallengeDataEntry to the data exactly as it was specified by the cardholder. Do not format or otherwise change the data.

When ACSUIType is Single-Select (02), set ChallengeDataEntry to the name of the selected option. For instance the ACS may provide the user with a selection like:

mobile: **** **** 329
email: s******k**@g***.com
The value to provide in ChallengeDataEntry is the ChallengeSelectInfoName, i.e. mobile.

When ACSUIType is Multi-Select (03), set ChallengeDataEntry to a comma-separated list of names of the selected options. For instance if ChallengeSelectInfo contains elements with names like chicago_illinois, st_louis_missouri, and portland_oregon, and the user chose two options, the value specified in ChallengeDataEntry would be chicago_illinois,portland_oregon.

When ACSUIType is OOB (04), set OOBContinuationIndicator to True to indicate the cardholder has pressed the button signaling their completing of the OOB process.

Completing the Challenge

After calling SendChallengeRequest a second time with the cardholder's responses, the ACS may require additional challenges. Check the ChallengeComplete property to determine if the challenge is complete. If False, more challenges are required by the ACS and the same process of displaying the challenge info, collecting the response, and submitting it to the ACS should be performed again.

If ChallengeComplete is True, the challenge interaction is complete and TransactionStatus can be inspected to determine whether the transaction was successful.

Note: As part of the challenge completion the ACS also notifies the 3DS Server of the results. This is done by posting the results to the URL defined by the ResultsURL property of the 3DS Server class.

Logging Notes

Logging in the component is handled through the Log event. This will fire anytime a message is built or a response is parsed, including error messages.

When the Log event is fired, the message in question is made available via the Message event parameter. Properties such as EphemeralKey and DeviceParams are also available when they are gathered by the Client. The other event arguments are LogType and LogLevel:

The LogType parameter indicates the type of the log entry. Possible values are:

  • "Info"
  • "RequestHeaders"
  • "ResponseHeaders"
  • "RequestBody"
  • "ResponseBody"
  • "ProxyRequest"
  • "ProxyResponse"
  • "FirewallRequest"
  • "FirewallResponse"
  • "AReq"
  • "ARes"
  • "CReq"
  • "CRes"
  • "RReq"
  • "RRes"
  • "PReq"
  • "PRes"
  • "Erro"
  • "EphemeralKey"
  • "DeviceParams"
The LogLevel configuration setting can be used to specify the detail of the logs raised through the Log event. The LogLevel parameter in the event indicates the log level to which the current message belongs.

It is recommended to output all messages raised in this event to a file for record keeping purposes, or for later debugging issues that may have come up.

The Server and Client components also have DataPacketIn and DataPacketOut events that fire anytime a data packet is received or sent, respectively. The entire data packet is then accessible in the DataPacket event parameter. For encrypted packets, this would contain the full encrypted data. This parameter may be inspected for advanced troubleshooting.

Property List


The following is the full list of the properties of the class with short descriptions. Click on the links for further details.

ACSHTMLHTML provided by the ACS.
ACSHTMLRefreshACS HTML refresh.
ACSRootCertsA collection of trusted CA certificates.
ACSUITypeUI type rendered by the 3DS SDK.
ChallengeAdditionalInformationChallenge additional information text.
ChallengeAdditionalLabelChallenge Additional Label.
ChallengeCancellationIndicatorChallenge Cancellation Indicator.
ChallengeCompleteWhether or not the challenge cycle is complete.
ChallengeDataEntryCardholder entered data.
ChallengeDataEntryTwoCardholder entered data.
ChallengeEntryBoxFirst entry box settings.
ChallengeEntryBoxTwoSecond entry box settings.
ChallengeInfoHeaderChallenge information screen header.
ChallengeInfoLabelChallenge information label.
ChallengeInfoTextChallenge information text.
ChallengeSelectInfoChallenge selection information.
DataPacketOutContains the data packet sent to the server.
DeviceBindingDataEntryDevice Binding Data Entry.
DeviceBindingInformationTextDevice binding information text.
DeviceParamsDevice information parameters.
DirectoryServerCertDirectory Server public key certificate.
DirectoryServerIdValue of the Registered Application Provider Identifier (RID) unique to the payment system.
DirectoryServerKeyIdDirectory Server Key Identifier (kid).
EnableChallengeInfoTextIndicatorChallenge information text indicator.
ErrorPacketThe error packet.
ExpandableInformationLabelExpandable information label.
ExpandableInformationTextExpandable information text.
ExtensionsExtensions to be included in the next outgoing packet.
IssuerImage1Issuer image URL 1.
IssuerImage2Issuer image URL 2.
IssuerImage3Issuer image URL 3.
MessageVersionMessage version.
OOBAppLabelOOB App label.
OOBAppStatusOOB App status.
OOBAppURLOOB App label.
OOBAppURLIndicatorOOB App URL Indicator.
OOBContinuationIndicatorOOB continuation indicator.
OOBContinueLabelOOB continuation label.
PaymentSystemImage1Payment system image URL 1.
PaymentSystemImage2Payment system image URL 2.
PaymentSystemImage3Payment system image URL 3.
ProxyThis property includes a set of properties related to proxy access.
RequestorAppURL3DS Requestor App URL.
ResendInformationLabelLabel for UI button allowing users to request that authentication information be resent.
SDKAppIdThe unique SDK App Id.
SDKTransactionIdSDK Transaction ID.
SSLAcceptServerCertInstructs the class to unconditionally accept the server certificate that matches the supplied certificate.
SSLCertThe certificate to be used during SSL negotiation.
SSLServerCertThe server certificate for the last established connection.
SubmitAuthenticationLabelLabel for UI button users select to submit authentication.
TimeoutA timeout for the class.
TogglePositionIndicatorToggle Position Indicator.
TransactionStatusThe transaction status from the last parsed message (ARes, RReq, or CRes).
UseAdditionalChallengeWhether or not the additional choice button is selected.
UseInformationContinuationWhether or not the Information Continue button is selected.
WhitelistingDataEntryWhitelisting Data Entry.
WhitelistingInformationTextWhitelisting information text.
WhyInformationLabelLabel for why information section.
WhyInformationTextText to explain the authentication task to the user.

Method List


The following is the full list of the methods of the class with short descriptions. Click on the links for further details.

AddDeviceParamAdds a device parameter to the collection.
AddExtensionAdds an extension to the collection.
AddRequestFieldAdds a field to the data in the request.
CheckAuthResponseChecks the received packet.
ConfigSets or retrieves a configuration setting.
GetAuthRequestPrepares data to be sent by the 3DS Server.
InterruptInterrupts the current action.
ResetClears all properties to their default values.
ResetTransactionInfoResets transaction specific information.
SendChallengeRequestBuilds and sends the Challenge Request in an app-based challenge flow.

Event List


The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.

DataPacketInFired when receiving a data packet from the server.
DataPacketOutFired when sending a data packet to the server.
ErrorInformation about errors during data delivery.
LogFires once for each log message.
SSLServerAuthenticationFired after the server presents its certificate to the client.
SSLStatusShows the progress of the secure connection.

Config Settings


The following is a list of config settings for the class with short descriptions. Click on the links for further details.

AcceptAnyACSCertWhether to accept any ACS certificate during signature validation.
ACSRenderingDeviceUserInterfaceModeUser interface mode the ACS will present to cardholder.
ACSRenderingInterfaceChallenge interface type presented to cardholder.
ACSRenderingUITemplateChallenge type presented to cardholder.
ACSSignedContentString value of the JWS object of the ARes message created by the ACS.
ACSTransactionIdUnique transaction identifier assigned by the ACS.
ACSURLACS URL to which the challenge request is sent.
ChallengeResponseChallenge Response (CRes).
ChallengeTimeRemainingAmount of time left to complete challenge.
DeviceRenderingInterfaceSDK Interface Device Rendering Types supported.
DeviceRenderingUITypeSDK UI Types supported.
DSTransactionIdDirectory server transaction ID.
ErrorCodeCode from the last error message.
ErrorDescriptionDescription from the last error message.
ErrorDetailAdditional details from the last error message.
IncomingExtensionCountThe number of extensions received from the directory server.
IncomingExtensionCritical[Index]Whether the extension is critical.
IncomingExtensionData[Index]The extension data as JSON.
IncomingExtensionId[Index]The id of the specified extension.
IncomingExtensionName[Index]The extension name.
IncomingRawExtensionsThe full JSON formatted extension data received from the directory server.
LogLevelLevel of logging enabled.
MaskSensitiveWhether to mask sensitive data in the Log event.
MerchantAppURL3DS Requestor App URL.
MessageTypeType of message that is passed.
OutgoingRawExtensionsThe full JSON formatted extension data sent to the directory server.
ProtocolVersionProtocol version identifier.
ResendChallengeInfoResend challenge information code.
SdkAppIdSDK App ID.
SdkAuthenticationTypeSDK Authentication Type.
SDKEphemeralPrivateKeyPrivate key class of the ephemeral key pair generated by the Client.
SDKEphemeralPublicKeyPublic key class of the ephemeral key pair generated by the Client.
SDKMaxTimeoutSDK Maximum Timeout.
SDKReferenceNumberAssigned SDK reference number.
SDKTransactionIdSDK Transaction ID.
ServerTransactionIdUnique transaction identifier assigned by the 3DS Server.
TransactionStatusReasonReason for value of TransactionStatus.
UseAESGCMWhether or not to use AESGCM as the encryption algorithm.
XChildCountThe number of child elements of the current element.
XChildName[i]The name of the child element.
XChildXText[i]The inner text of the child element.
XElementThe name of the current element.
XParentThe parent of the current element.
XPathProvides a way to point to a specific element in the returned XML or JSON response.
XSubTreeA snapshot of the current element in the document.
XTextThe text of the current element.
LogSSLPacketsControls whether SSL packets are logged when using the internal security API.
OpenSSLCADirThe path to a directory containing CA certificates.
OpenSSLCAFileName of the file containing the list of CA's trusted by your application.
OpenSSLCipherListA string that controls the ciphers to be used by SSL.
OpenSSLPrngSeedDataThe data to seed the pseudo random number generator (PRNG).
ReuseSSLSessionDetermines if the SSL session is reused.
SSLAcceptAnyServerCertWhether to trust any certificate presented by the server.
SSLCACertsA newline separated list of CA certificate to use during SSL client authentication.
SSLCipherStrengthThe minimum cipher strength used for bulk encryption.
SSLEnabledCipherSuitesThe cipher suite to be used in an SSL negotiation.
SSLEnabledProtocolsUsed to enable/disable the supported security protocols.
SSLEnableRenegotiationWhether the renegotiation_info SSL extension is supported.
SSLIncludeCertChainWhether the entire certificate chain is included in the SSLServerAuthentication event.
SSLKeyLogFileThe location of a file where per-session secrets are written for debugging purposes.
SSLNegotiatedCipherReturns the negotiated cipher suite.
SSLNegotiatedCipherStrengthReturns the negotiated cipher suite strength.
SSLNegotiatedCipherSuiteReturns the negotiated cipher suite.
SSLNegotiatedKeyExchangeReturns the negotiated key exchange algorithm.
SSLNegotiatedKeyExchangeStrengthReturns the negotiated key exchange algorithm strength.
SSLNegotiatedVersionReturns the negotiated protocol version.
SSLSecurityFlagsFlags that control certificate verification.
SSLServerCACertsA newline separated list of CA certificate to use during SSL server certificate validation.
TLS12SignatureAlgorithmsDefines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal.
TLS12SupportedGroupsThe supported groups for ECC.
TLS13KeyShareGroupsThe groups for which to pregenerate key shares.
TLS13SignatureAlgorithmsThe allowed certificate signature algorithms.
TLS13SupportedGroupsThe supported groups for (EC)DHE key exchange.

Client.ACSHTML Property

HTML provided by the ACS.

Syntax

getACSHTML(): string;

Default Value

""

Remarks

This field contains HTML provided by the ACS in the Challenge Response Message (CRes). This will be populated when the ACSUIType is HTML.

As per the EMV® 3-D Secure specification, the HTML UI is presented to the cardholder via a web view which remains in control of the app. The app must intercept any remote URL requests made from within the web view, and instead handle them within the app. Preventing the cardholder from making requests in the web view to another server is critical to the security of the environment. According to the EMVCo specification, intercepting these requests has two effects:

  • Prevents malicious HTML from redirecting a user to a phishing site.
  • Conceptually puts the web view form under the control of the ACS, rather than the app.
The following are key points mentioned in the EMV 3DS specification:
  • Navigation attempts from within the web view must be captured by the app and handled internally. This includes all requests including images, javascript files, css, etc.
  • The web view element is not utilized as a browser, but as a UI element whose content is provided by the ACS.
Please refer to the EMV 3DS specification for more details and guidance on this topic. This information is not meant to replace the text in the EMV 3DS specification.

This property is read-only.

Client.ACSHTMLRefresh Property

ACS HTML refresh.

Syntax

getACSHTMLRefresh(): string;

Default Value

""

Remarks

Optional HTML provided by the ACS in response to SendChallengeRequest when ACSUIType is HTML (05).

If the ACS HTML Refresh is present in the CRes message, the app should display this in the web view when the app is moved to the foreground.

This property is read-only.

Client.ACSRootCerts Property

A collection of trusted CA certificates.

Syntax

getACSRootCerts(): CertificateList;
setACSRootCerts(ACSRootCerts: CertificateList): void;

Default Value

Remarks

This setting holds a collection of Certificates used to verify data sent by the ACS.

Set this property to one or more Root certificates from the ACS before calling CheckAuthResponse.

This property is not available at design time.

Please refer to the Certificate type for a complete list of fields.

Client.ACSUIType Property

UI type rendered by the 3DS SDK.

Syntax

getACSUIType(): number;

Default Value

0

Remarks

This field is returned in the Challenge Response Message (CRes) from the ACS and contains the User Interface type that the 3DS SDK will render. 1 = Text 2 = Single Select 3 = Multi Select 4 = OOB 5 = HTML 6 = HTML OOB 7 = Information

This property is read-only.

Client.ChallengeAdditionalInformation Property

Challenge additional information text.

Syntax

getChallengeAdditionalInformation(): string;

Default Value

""

Remarks

Text provided by the ACS/Issuer to the cardholder during OOB authentication to replace challenge information text and challenge information text indicator in the OOB template.

This property is read-only.

Client.ChallengeAdditionalLabel Property

Challenge Additional Label.

Syntax

getChallengeAdditionalLabel(): string;

Default Value

""

Remarks

UI label for the additional choice button provided by the ACS.

This property is read-only.

Client.ChallengeCancellationIndicator Property

Challenge Cancellation Indicator.

Syntax

getChallengeCancellationIndicator(): string;
setChallengeCancellationIndicator(challengeCancellationIndicator: string): void;

Default Value

""

Remarks

This field is an indicator informing the ACS and the DS that the authentication has been canceled. This is required to be set if the authentication transaction was canceled by the user. This may also be received in the Results Request from the directory server if the ACS identifies that the authentication transaction was canceled for reasons as indicated.

Possible values include:

01Cardholder selected "Cancel"
023DS Requestor canceled authentication
03Transaction aborted
04Transaction timed out at ACS - other timeouts
05Transaction timed out at ACS - First CReq not received by ACS
06Transaction error
07Unknown

Client.ChallengeComplete Property

Whether or not the challenge cycle is complete.

Syntax

isChallengeComplete(): boolean;

Default Value

FALSE

Remarks

Present in the Challenge Response Message (CRes) and indicates whether the challenge cycle is complete or will require additional messages. If true, the TransactionStatus will be populated as well.

This property is read-only.

Client.ChallengeDataEntry Property

Cardholder entered data.

Syntax

getChallengeDataEntry(): string;
setChallengeDataEntry(challengeDataEntry: string): void;

Default Value

""

Remarks

This field contains the data that the cardholder entered into the UI.

When ACSUIType is Text (01) or HTML (05), set ChallengeDataEntry to the data exactly as it was specified by the cardholder. Do not format or otherwise change the data.

When ACSUIType is Single-Select (02), set ChallengeDataEntry to the name of the selected option. For instance the ACS may provide the user with a selection like:

mobile: **** **** 329
email: s******k**@g***.com
The value to provide in ChallengeDataEntry is the ChallengeSelectInfoName, i.e. mobile.

When ACSUIType is Multi-Select (03), set ChallengeDataEntry to a comma-separated list of names of the selected options. For instance if ChallengeSelectInfo contains elements with names like chicago_illinois, st_louis_missouri, and portland_oregon, and the user chose two options, the value specified in ChallengeDataEntry would be chicago_illinois,portland_oregon.

Client.ChallengeDataEntryTwo Property

Cardholder entered data.

Syntax

getChallengeDataEntryTwo(): string;
setChallengeDataEntryTwo(challengeDataEntryTwo: string): void;

Default Value

""

Remarks

This field contains the data that the cardholder entered into the UI.

When ACSUIType is Text (01) or HTML (05), set ChallengeDataEntry to the data exactly as it was specified by the cardholder. Do not format or otherwise change the data.

When ACSUIType is Single-Select (02), set ChallengeDataEntry to the name of the selected option. For instance the ACS may provide the user with a selection like:

mobile: **** **** 329
email: s******k**@g***.com
The value to provide in ChallengeDataEntry is the ChallengeSelectInfoName, i.e. mobile.

When ACSUIType is Multi-Select (03), set ChallengeDataEntry to a comma-separated list of names of the selected options. For instance if ChallengeSelectInfo contains elements with names like chicago_illinois, st_louis_missouri, and portland_oregon, and the user chose two options, the value specified in ChallengeDataEntry would be chicago_illinois,portland_oregon.

Client.ChallengeEntryBox Property

First entry box settings.

Syntax

getChallengeEntryBox(): ChallengeTextBox;

Default Value

Remarks

Defines the settings for the first entry box in the Native UI OTP/Text Template.

This property is read-only and not available at design time.

Please refer to the ChallengeTextBox type for a complete list of fields.

Client.ChallengeEntryBoxTwo Property

Second entry box settings.

Syntax

getChallengeEntryBoxTwo(): ChallengeTextBox;

Default Value

Remarks

Defines the settings for the second entry box in the Native UI OTP/Text Template.

This property is read-only and not available at design time.

Please refer to the ChallengeTextBox type for a complete list of fields.

Client.ChallengeInfoHeader Property

Challenge information screen header.

Syntax

getChallengeInfoHeader(): string;

Default Value

""

Remarks

This field contains the header text for the challenge information screen that is being presented.

This property is read-only.

Client.ChallengeInfoLabel Property

Challenge information label.

Syntax

getChallengeInfoLabel(): string;

Default Value

""

Remarks

This field contains the label to modify the challenge data entry field provided by the issuer. If this field is populated, it should be displayed to the cardholder.

This property is read-only.

Client.ChallengeInfoText Property

Challenge information text.

Syntax

getChallengeInfoText(): string;

Default Value

""

Remarks

This field contains text provided by the ACS/Issuer to the cardholder during the challenge message exchange. If this field is populated, it should be displayed to the cardholder.

This property is read-only.

Client.ChallengeSelectInfo Property

Challenge selection information.

Syntax

getChallengeSelectInfo(): ChallengeSelectInfoList;

Default Value

0

Remarks

This property holds a collection of name/value pairs to be displayed to the cardholder as selectable options when ACSUIType is Single-Select (02) or Multi-Select (03).

This property is read-only and not available at design time.

Please refer to the ChallengeSelectInfo type for a complete list of fields.

Client.DataPacketOut Property

Contains the data packet sent to the server.

Syntax

getDataPacketOut(): string;

Default Value

""

Remarks

After calling either the RequestCardRanges, or SendAuthRequest methods, this property will contain the entire data packet that was sent. Also, after calling the GetChallengeRequest or GetResultsResponse method, this property will contain the constructed messages. The contents of this property should be logged for each transaction.

This property is read-only and not available at design time.

Client.DeviceBindingDataEntry Property

Device Binding Data Entry.

Syntax

isDeviceBindingDataEntry(): boolean;
setDeviceBindingDataEntry(deviceBindingDataEntry: boolean): void;

Default Value

FALSE

Remarks

Indicator provided by the 3DS SDK to the ACS to confirm whether the Cardholder gives consent to bind the device.

Client.DeviceBindingInformationText Property

Device binding information text.

Syntax

getDeviceBindingInformationText(): string;

Default Value

""

Remarks

Text provided by the ACS to the Cardholder during the Device Binding process.

This property is read-only.

Client.DeviceParams Property

Device information parameters.

Syntax

getDeviceParams(): DeviceParamList;
setDeviceParams(deviceParams: DeviceParamList): void;

Default Value

Remarks

This collection contains device information parameters that are used in the app flow to provide device information to the directory server. Parameters can be added manually or using the AddDeviceParam method. More information can be found in the documentation for the AddDeviceParam method.

Please refer to the DeviceParam type for a complete list of fields.

Client.DirectoryServerCert Property

Directory Server public key certificate.

Syntax

getDirectoryServerCert(): Certificate;
setDirectoryServerCert(directoryServerCert: Certificate): void;

Default Value

Remarks

Public key generated by the DS Certificate Authority, which is typically operated by the Payment System responsible for a specific DS. The key is identified based on the DirectoryServerId. Required to encrypt DeviceParams when building AReq.

Please refer to the Certificate type for a complete list of fields.

Client.DirectoryServerId Property

Value of the Registered Application Provider Identifier (RID) unique to the payment system.

Syntax

getDirectoryServerId(): string;
setDirectoryServerId(directoryServerId: string): void;

Default Value

""

Remarks

Registered Application Provider Identifier (RID) value defined by the ISO 7816-5 standard for uniquely registering such providers. This value is unique to the Payment System involved and must be known by the 3DS Requestor App so that it may be passed to the SDK on when it invokes the createTransaction method within the SDK. Used to identify the DirectoryServerCert for the given DS which is used by the SDK to encrypt the Device Information. Required when DirectoryServerCert is an EC key.

Client.DirectoryServerKeyId Property

Directory Server Key Identifier (kid).

Syntax

getDirectoryServerKeyId(): string;
setDirectoryServerKeyId(directoryServerKeyId: string): void;

Default Value

""

Remarks

Used to specify the Directory Server Key Identifier. There may be multiple keys for each DS, with each key having a unique identifier.

Client.EnableChallengeInfoTextIndicator Property

Challenge information text indicator.

Syntax

isEnableChallengeInfoTextIndicator(): boolean;

Default Value

FALSE

Remarks

This field indicates when the ACS/Issuer would like a warning icon or similar visual indicator to draw attention to the ChallengeInfoText that is being displayed. If this field is populated, it should affect the information being displayed to the cardholder.

This property is read-only.

Client.ErrorPacket Property

The error packet.

Syntax

getErrorPacket(): string;

Default Value

""

Remarks

If an error is encountered while parsing a received packet using the CheckResponse method, this field will be populated with an error packet to be sent back to the server.

If the message being parsed is an error, this field will be populated with the received error packet itself.

This property is read-only.

Client.ExpandableInformationLabel Property

Expandable information label.

Syntax

getExpandableInformationLabel(): string;

Default Value

""

Remarks

Label displayed to the cardholder for the content in ExpandableInformationText.

This property is read-only.

Client.ExpandableInformationText Property

Expandable information text.

Syntax

getExpandableInformationText(): string;

Default Value

""

Remarks

This field contains text provided by the Issuer from the ACS to be displayed to the cardholder for additional information. The format should be an expandable text field.

This property is read-only.

Client.Extensions Property

Extensions to be included in the next outgoing packet.

Syntax

getExtensions(): ExtensionList;
setExtensions(extensions: ExtensionList): void;

Default Value

0

Remarks

Data necessary to support requirements not otherwise defined in the 3-D Secure message are carried in Message Extensions. This collection contains extension data to be included in the next outgoing request. Extensions can be added manually or using the AddExtension method.

Note: The maximum number of extensions is 10.

Please refer to the Extension type for a complete list of fields.

Client.IssuerImage1 Property

Issuer image URL 1.

Syntax

getIssuerImage1(): string;

Default Value

""

Remarks

Sent in the initial CRes message from the ACS to the 3DS SDK to provide the URL(s) of the issuer logo or image to be used in the Native UI. before 2.3.1: Medium Density Image in 2.3.1: Default Image

This property is read-only and not available at design time.

Client.IssuerImage2 Property

Issuer image URL 2.

Syntax

getIssuerImage2(): string;

Default Value

""

Remarks

Sent in the initial CRes message from the ACS to the 3DS SDK to provide the URL(s) of the issuer logo or image to be used in the Native UI. before 2.3.1: High Density Image in 2.3.1: Dark Mode Image

This property is read-only and not available at design time.

Client.IssuerImage3 Property

Issuer image URL 3.

Syntax

getIssuerImage3(): string;

Default Value

""

Remarks

Sent in the initial CRes message from the ACS to the 3DS SDK to provide the URL(s) of the issuer logo or image to be used in the Native UI. before 2.3.1: Extra High-Density Image in 2.3.1: Monochrome Image

This property is read-only and not available at design time.

Client.MessageVersion Property

Message version.

Syntax

getMessageVersion(): string;
setMessageVersion(messageVersion: string): void;

Default Value

"2.1.0"

Remarks

This field indicates the protocol version. This should be the protocol version number of the specification utilized by the system creating this message.

Possible values are:

2.1.0 (Default)
2.2.0
2.3.1

Client.OOBAppLabel Property

OOB App label.

Syntax

getOOBAppLabel(): string;

Default Value

""

Remarks

Label to be displayed for the link to the OOB App URL. For example: "Click here to open Your Bank App."

This property is read-only.

Client.OOBAppStatus Property

OOB App status.

Syntax

getOOBAppStatus(): number;
setOOBAppStatus(OOBAppStatus: number): void;

Default Value

0

Remarks

Status code indicating the problem type encountered when using the OOB App URL. 1 = Open OOB App URL failed

Client.OOBAppURL Property

OOB App label.

Syntax

getOOBAppURL(): string;

Default Value

""

Remarks

Universal App Link to an authentication app used in the OOB authentication. The OOB App URL will open the appropriate location within the OOB Authentication App.

This property is read-only.

Client.OOBAppURLIndicator Property

OOB App URL Indicator.

Syntax

getOOBAppURLIndicator(): number;
setOOBAppURLIndicator(OOBAppURLIndicator: number): void;

Default Value

1

Remarks

Indicates if the 3DS SDK supports the OOB App URL. 01 = Supported 02 = Not supported by the device 03 = Not supported by the 3DS Requestor

Client.OOBContinuationIndicator Property

OOB continuation indicator.

Syntax

getOOBContinuationIndicator(): number;
setOOBContinuationIndicator(OOBContinuationIndicator: number): void;

Default Value

0

Remarks

An indicator notifying the ACS that the cardholder has completed the authentication as requested by selecting the continue button in an out-of-band (OOB) authentication method. This is exclusive to the app flow and required when the ACSUIType is set to OOB when the user has selected the continue option on the device.

Client.OOBContinueLabel Property

OOB continuation label.

Syntax

getOOBContinueLabel(): string;

Default Value

""

Remarks

Label to be used in the UI for the button that the user selects when they have completed the OOB authentication.

This property is read-only.

Client.PaymentSystemImage1 Property

Payment system image URL 1.

Syntax

getPaymentSystemImage1(): string;

Default Value

""

Remarks

Sent in the initial CRes message from the ACS to the 3DS SDK to provide the URL(s) of the directory server or payment system logo or image to be used in the Native UI. before 2.3.1: Medium Density Image in 2.3.1: Default Image

This property is read-only and not available at design time.

Client.PaymentSystemImage2 Property

Payment system image URL 2.

Syntax

getPaymentSystemImage2(): string;

Default Value

""

Remarks

Sent in the initial CRes message from the ACS to the 3DS SDK to provide the URL(s) of the directory server or payment system logo or image to be used in the Native UI. before 2.3.1: High Density Image in 2.3.1: Dark Mode Image

This property is read-only and not available at design time.

Client.PaymentSystemImage3 Property

Payment system image URL 3.

Syntax

getPaymentSystemImage3(): string;

Default Value

""

Remarks

Sent in the initial CRes message from the ACS to the 3DS SDK to provide the URL(s) of the directory server or payment system logo or image to be used in the Native UI. before 2.3.1: Extra High-Density Image in 2.3.1: Monochrome Image

This property is read-only and not available at design time.

Client.Proxy Property

This property includes a set of properties related to proxy access.

Syntax

getProxy(): Proxy;
setProxy(proxy: Proxy): void;

Default Value

Remarks

This property contains fields describing the proxy through which the class will attempt to connect.

Please refer to the Proxy type for a complete list of fields.

Client.RequestorAppURL Property

3DS Requestor App URL.

Syntax

getRequestorAppURL(): string;
setRequestorAppURL(requestorAppURL: string): void;

Default Value

""

Remarks

3DS Requestor App declaring its URL within the CReq message so that the Authentication app can call the 3DS Requestor App after OOB authentication has occurred. Note: When providing the 3DS Requestor App URL, the 3DS Requestor needs to properly register the URL with the Operating System.

Client.ResendInformationLabel Property

Label for UI button allowing users to request that authentication information be resent.

Syntax

getResendInformationLabel(): string;

Default Value

""

Remarks

Value of text to be displayed on the UI label on the button users click for authentication information to be resent. Sent in CRes if the ACS allows the Cardholder to request such information to be resent. App-based only.

This property is read-only.

Client.SDKAppId Property

The unique SDK App Id.

Syntax

getSDKAppId(): string;
setSDKAppId(SDKAppId: string): void;

Default Value

""

Remarks

This property must be set to a universally unique Id created for a specific installation of the app on a consumer device. The app is responsible for generating and storing the SDKAppId for each installation or update. This property must be set before calling GetAuthRequest.

The value assigned here must be 36 characters and be in the format defined in IETF RFC 4122. For example: 8a880dc0-d2d2-4067-bcb1-b08d1690b26e.

Client.SDKTransactionId Property

SDK Transaction ID.

Syntax

getSDKTransactionId(): string;
setSDKTransactionId(SDKTransactionId: string): void;

Default Value

""

Remarks

This field contains the universally unique transaction identifier assigned by the 3DS SDK to identify a single transaction. This is generated by the class when calling the GetAuthRequest method. Shall be provided to the 3DS Server for the purpose of uniquely identifying this transaction within all messages of the authentication process, beginning with the AReq sent by the Server.

Client.SSLAcceptServerCert Property

Instructs the class to unconditionally accept the server certificate that matches the supplied certificate.

Syntax

getSSLAcceptServerCert(): Certificate;
setSSLAcceptServerCert(SSLAcceptServerCert: Certificate): void;

Default Value

Remarks

If it finds any issues with the certificate presented by the server, the class will normally terminate the connection with an error.

You may override this behavior by supplying a value for SSLAcceptServerCert. If the certificate supplied in SSLAcceptServerCert is the same as the certificate presented by the server, then the server certificate is accepted unconditionally, and the connection will continue normally.

Please note that this functionality is provided only for cases where you otherwise know that you are communicating with the right server. If used improperly, this property may create a security breach. Use it at your own risk.

Please refer to the Certificate type for a complete list of fields.

Client.SSLCert Property

The certificate to be used during SSL negotiation.

Syntax

getSSLCert(): Certificate;
setSSLCert(SSLCert: Certificate): void;

Default Value

Remarks

The digital certificate that the class will use during SSL negotiation. Set this property to a valid certificate before starting SSL negotiation. To set a certificate, you may set the field to the encoded certificate. To select a certificate, use the store and subject fields.

Please refer to the Certificate type for a complete list of fields.

Client.SSLServerCert Property

The server certificate for the last established connection.

Syntax

getSSLServerCert(): Certificate;

Default Value

Remarks

SSLServerCert contains the server certificate for the last established connection.

SSLServerCert is reset every time a new connection is attempted.

This property is read-only.

Please refer to the Certificate type for a complete list of fields.

Client.SubmitAuthenticationLabel Property

Label for UI button users select to submit authentication.

Syntax

getSubmitAuthenticationLabel(): string;

Default Value

""

Remarks

Value of text to be displayed on the UI label on the button users click to submit the authentication information they have entered. Sent in CRes if ACSUIType is 01 (Text), 02 (Single Select) or 02 (Multi Select). App-based only.

This property is read-only.

Client.Timeout Property

A timeout for the class.

Syntax

getTimeout(): number;
setTimeout(timeout: number): void;

Default Value

30

Remarks

If the Timeout property is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.

If Timeout is set to a positive value, the class will wait for the operation to complete before returning control.

The class will use DoEvents to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not "freeze" and remains responsive.

If Timeout expires, and the operation is not yet complete, the class .

Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.

The default value for the Timeout property is 30 seconds.

Client.TogglePositionIndicator Property

Toggle Position Indicator.

Syntax

getTogglePositionIndicator(): number;

Default Value

0

Remarks

Indicates if the Trust List and/or Device Binding prompt should be presented below or above the action buttons.

This property is read-only.

Client.TransactionStatus Property

The transaction status from the last parsed message (ARes, RReq, or CRes).

Syntax

getTransactionStatus(): string;

Default Value

""

Remarks

Indicates whether a transaction qualifies as an authenticated transaction or account verification. Possible values are:

YAuthentication/account verification successful.
NNot authenticated/account not verified; transaction denied.
UAuthentication/account verification could not be performed; technical or other problem as indicated in ARes or RReq.
AAttempts processing performed; not authenticated/verified, but a proof of attempted authentication/verification is provided.
CChallenge required; additional authentication is required using the CReq/CRes.
RAuthentication/account verification rejected; issuer is rejecting authentication/verification and request that authorization not be attempted.
DChallenge required; decoupled authentication confirmed.
IInformational only; 3DS Requestor challenge preference acknowledged.

Note: The CRes message can contain only a value of Y or N. Values of D and I are only applicable for 3DS version 2.2.0.

This property is read-only.

Client.UseAdditionalChallenge Property

Whether or not the additional choice button is selected.

Syntax

isUseAdditionalChallenge(): boolean;
setUseAdditionalChallenge(useAdditionalChallenge: boolean): void;

Default Value

FALSE

Remarks

Indicates to the ACS that the Cardholder selected the additional choice.

Client.UseInformationContinuation Property

Whether or not the Information Continue button is selected.

Syntax

isUseInformationContinuation(): boolean;
setUseInformationContinuation(useInformationContinuation: boolean): void;

Default Value

FALSE

Remarks

Indicator notifying the ACS that the Cardholder selected the Information Continue button in the Information UI template.

Client.WhitelistingDataEntry Property

Whitelisting Data Entry.

Syntax

isWhitelistingDataEntry(): boolean;
setWhitelistingDataEntry(whitelistingDataEntry: boolean): void;

Default Value

FALSE

Remarks

An indicator provided by the SDK to the ACS to confirm whether whitelisting was opted by the cardholder (true or false). This is required to be sent after a challenge response is received containing WhitelistingInformationText.

Client.WhitelistingInformationText Property

Whitelisting information text.

Syntax

getWhitelistingInformationText(): string;

Default Value

""

Remarks

Text provided by the ACS/Issuer to Cardholder during a Whitelisting transaction. For example: "Would you like to add this Merchant to your whitelist?"

If present in the challenge response, this must be displayed by the SDK.

This property is read-only.

Client.WhyInformationLabel Property

Label for why information section.

Syntax

getWhyInformationLabel(): string;

Default Value

""

Remarks

Label provided by the Issuer for the UI "why" information section. Can be sent in CRes. App-based only.

This property is read-only.

Client.WhyInformationText Property

Text to explain the authentication task to the user.

Syntax

getWhyInformationText(): string;

Default Value

""

Remarks

Text provided by the Issuer for UI to explain the authentication task to the user in the "why" information section. Can be sent in CRes. App-based only.

This property is read-only.

Client.addDeviceParam Method

Adds a device parameter to the collection.

Syntax

async client.addDeviceParam(field : string, value : string, valueType : number, category : number): Promise<void>

Remarks

AddDeviceParam adds a new device parameter to the DeviceParams collection. These parameters should be obtained from the consumer device and a full list of available parameters can be found in the EMV® 3-D Secure SDK-Device Information document provided by EMVCo.

The ValueType parameter specifies the type of the value. Possible values are:

  • 1 (Array)
  • 2 (String)

Most parameters will have a value type of 2 (String), which will contain a single, string value. Some parameters, however, may require an array of strings. For example, the A040 parameter is defined as containing a set of paired Bluetooth devices. All of these devices can be specified via an array like so: client.addDeviceParam("A040", "[\"firstDevice\", \"secondDevice\", \"thirdDevice\"]", 1, 1);

There are four categories of device information parameters:

DV - Data Version

This is the version of the data being specified. This is 1.0 by default, but can be set to a different value as shown below. When setting the data version, only the value of the parameter needs to be specified. client1.AddDeviceParam("", "1.1", 2, 0);

DD - Device Data

This category is used to specify the device parameters collected from the mobile platform. // the device platform is Android client1.AddDeviceParam("C001", "Android", 2, 1); // the device model is an HTC One (M8) client1.AddDeviceParam("C002", "HTCOne_M8", 2, 1);

DPNA - Device Parameter Not Available

This category is used to specify reasons for unavailable device parameters. // IP Address couldn't be specified because of a "market or regional restriction on the parameter." client1.AddDeviceParam("C010", "RE01", 2, 2);

SW - Security Warning

This category of parameter is used to specify security warnings. These are used to let the directory server know of the result of checks made by the application upon initialization. When setting security warning parameters, only the name of the parameter needs to be specified. // the device is jailbroken client1.AddDeviceParam("SW01", "", 2, 3); // A debugger is attached to the app client1.AddDeviceParam("SW04", "", 2, 3);

Client.addExtension Method

Adds an extension to the collection.

Syntax

async client.addExtension(id : string, name : string, critical : boolean, data : string): Promise<void>

Remarks

Data necessary to support requirements not otherwise defined in the 3-D Secure message are carried in Message Extensions. AddExtension adds a new extension to the Extensions collection.

Note: The maximum number of extensions is 10.

Client.addRequestField Method

Adds a field to the data in the request.

Syntax

async client.addRequestField(name : string, value : string, valueType : number): Promise<void>

Remarks

This method can be used to extend the requests constructed by the class. When this method is called, the component will add the specified field to the end of the request.

Client.checkAuthResponse Method

Checks the received packet.

Syntax

async client.checkAuthResponse(authResponse : string): Promise<void>

Remarks

After the response to the authentication request is received from the 3DS Server class, call CheckAuthResponse to verify and parse the response. See the 3DS Server's SendAuthRequest method for details about obtaining the response.

Before calling this method, ACSRootCerts must be populated with the root certificates used by the ACS to sign the response. This method will validate the signature of the signed content if present.

After calling this method, inspect TransactionStatus to determine if the transaction requires a challenge. If TransactionStatus is C, a challenge is required and SendChallengeRequest should be called to proceed with the challenge flow. If TransactionStatus is D, decoupled authentication will take place outside of the 3-D Secure flow and the results will be posted to the 3DS Server.

If TransactionStatus is Y or A, the transaction is complete.

Client.config Method

Sets or retrieves a configuration setting.

Syntax

async client.config(configurationString : string): Promise<string>

Remarks

Config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

Client.getAuthRequest Method

Prepares data to be sent by the 3DS Server.

Syntax

async client.getAuthRequest(): Promise<string>

Remarks

GetAuthRequest encrypts the device info and prepares all the data necessary to be sent by the 3DS Server class in the SendAuthRequest method.

After calling this method, the returned data must be transmitted via a separate secure channel to the server where 3DS Server is being used.

The following properties are required before calling the method:

PropertyDescription
DeviceParams Contains device information parameters. Add parameters via AddDeviceParam.
DirectoryServerCert Used to encrypt the device parameters.
DirectoryServerId Identifies the DirectoryServerCert within the directory server.
SDKAppId A UUID for the specific installation.
SDKReferenceNumber An Id assigned by EMVCo to identify the vendor and software version.

Calling this method returns required information used by 3DS Server to send the authentication request. Transmit the value returned by this method to the system where 3DS Server is used. The method used to transmit this value is outside the scope of the class.

See SendAuthRequest for details on sending the authentication request after transmitting the data to the 3DS Server.

Calling this method also populates SDKTransactionId which uniquely identifies this transaction and must be used in subsequent calls relating to this transaction, such as SendChallengeRequest.

Client.interrupt Method

Interrupts the current action.

Syntax

async client.interrupt(): Promise<void>

Remarks

This method interrupts any processing that the class is currently executing.

Client.reset Method

Clears all properties to their default values.

Syntax

async client.reset(): Promise<void>

Remarks

This method clears all properties to their default values.

Client.resetTransactionInfo Method

Resets transaction specific information.

Syntax

async client.resetTransactionInfo(): Promise<void>

Remarks

This method must be called between transactions when using the same class instance.

Each transaction that is attempted uses transaction specific values that should not be re-used in subsequent transactions. Call this method to make sure that any transaction specific information is cleared between transactions.

This method resets only the transaction specific information without resetting any other values which have been configured. This allows re-use of the same component instance.

In an App-Based flow the following are reset:

Client.sendChallengeRequest Method

Builds and sends the Challenge Request in an app-based challenge flow.

Syntax

async client.sendChallengeRequest(): Promise<void>

Remarks

SendChallengeRequest sends the Challenge Request to the ACS when a challenge is required.

When the TransactionStatus is C after calling CheckAuthResponse, a challenge to the cardholder is required. This method sends the challenge request and parses the response. The ACS may provide multiple challenges to the cardholder during this process. As a result this method may need to be called multiple times throughout the authentication process.

After this method is called, check ChallengeComplete to determine if the challenge process is complete. If it is complete (True), check TransactionStatus to determine the outcome. If ChallengeComplete is False, additional challenge interaction is required.

First Request

The first time this method is called, information about the required challenge is obtained from the ACS. The ACS connection information is automatically set when CheckAuthResponse is called; there is no need to specify any ACS connection information.

All required properties for the first call to this method are automatically set after CheckAuthResponse is called. If the transaction has been canceled, set ChallengeCancellationIndicator to inform the ACS.

After calling this method, the ACS will respond with details about the challenge to be presented to the cardholder. The ACSUIType property indicates the way the ACS will interact with the cardholder. The ChallengeComplete property will be False after the first call to this method since the challenge interaction is not yet complete.

The following properties are applicable when ACSUIType is Text (01), Single-Select (02), or Multi-Select (03):

Use the values in the above properties to populate values in the native UI in the app. The UI must follow the guidelines defined in the EMV® 3-D Secure specification.

The following properties are applicable when ACSUIType is Out-of-Band (04):

Use the values in the above properties to populate values in the native UI in the app. The UI must follow the guidelines defined in the EMV® 3-D Secure specification.

The following properties are applicable when ACSUIType is HTML (05):

In the case of an HTML interaction, the app should create a webview and populate this with the HTML in ACSHTML.

As per the EMV® 3-D Secure specification, the HTML UI is presented to the cardholder via a web view which remains in control of the app. The app must intercept any remote URL requests made from within the web view, and instead handle them within the app. Preventing the cardholder from making requests in the web view to another server is critical to the security of the environment. According to the EMVCo specification, intercepting these requests has two effects:

  • Prevents malicious HTML from redirecting a user to a phishing site.
  • Conceptually puts the web view form under the control of the ACS, rather than the app.
The following are key points mentioned in the EMV 3DS specification:
  • Navigation attempts from within the web view must be captured by the app and handled internally. This includes all requests including images, javascript files, css, etc.
  • The web view element is not utilized as a browser, but as a UI element whose content is provided by the ACS.
Please refer to the EMV 3DS specification for more details and guidance on this topic. This information is not meant to replace the text in the EMV 3DS specification.

Second Request

The second time this method is called, the purpose is to provide a response to the ACS. At this point the customer should have responded to the challenge provided by the ACS in the response to the first call. If the transaction has been canceled, set ChallengeCancellationIndicator to inform the ACS. The following properties are applicable when calling this method the second time:

When ACSUIType is Text (01) or HTML (05), set ChallengeDataEntry to the data exactly as it was specified by the cardholder. Do not format or otherwise change the data.

When ACSUIType is Single-Select (02), set ChallengeDataEntry to the name of the selected option. For instance the ACS may provide the user with a selection like:

mobile: **** **** 329
email: s******k**@g***.com
The value to provide in ChallengeDataEntry is the ChallengeSelectInfoName, i.e. mobile.

When ACSUIType is Multi-Select (03), set ChallengeDataEntry to a comma-separated list of names of the selected options. For instance if ChallengeSelectInfo contains elements with names like chicago_illinois, st_louis_missouri, and portland_oregon, and the user chose two options, the value specified in ChallengeDataEntry would be chicago_illinois,portland_oregon.

When ACSUIType is OOB (04), set OOBContinuationIndicator to True to indicate the cardholder has pressed the button signaling their completing of the OOB process.

Completing the Challenge

After calling SendChallengeRequest a second time with the cardholder's responses, the ACS may require additional challenges. Check the ChallengeComplete property to determine if the challenge is complete. If False, more challenges are required by the ACS and the same process of displaying the challenge info, collecting the response, and submitting it to the ACS should be performed again.

If ChallengeComplete is True, the challenge interaction is complete and TransactionStatus can be inspected to determine whether the transaction was successful.

Note: As part of the challenge completion the ACS also notifies the 3DS Server of the results. This is done by posting the results to the URL defined by the ResultsURL property of the 3DS Server class.

Client.DataPacketIn Event

Fired when receiving a data packet from the server.

Syntax

client.on('DataPacketIn', listener: (e: {readonly dataPacket: string, readonly dataPacketB: Uint8Array}) => void )

Remarks

This event fires when a packet is received. The entire data packet (including all framing and error detection characters) is contained in the DataPacket parameter. This parameter may be inspected for advanced troubleshooting, or to extract additional response properties beyond the scope of this component.

Client.DataPacketOut Event

Fired when sending a data packet to the server.

Syntax

client.on('DataPacketOut', listener: (e: {readonly dataPacket: string, readonly dataPacketB: Uint8Array}) => void )

Remarks

This event fires right before each data packet is sent. The entire data packet (including all framing and error detection characters) is contained in the DataPacket parameter. This parameter may be inspected for advanced troubleshooting, or may be modified to support additional features beyond the scope of this component.

Client.Error Event

Information about errors during data delivery.

Syntax

client.on('Error', listener: (e: {readonly errorCode: number, readonly description: string}) => void )

Remarks

The Error event is fired in case of exceptional conditions during message processing.

ErrorCode contains an error code and Description contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

Client.Log Event

Fires once for each log message.

Syntax

client.on('Log', listener: (e: {readonly logLevel: number, readonly message: string, readonly logType: string}) => void )

Remarks

Logging in the component is handled through the Log event. This will fire anytime a message is built or a response is parsed, including error messages.

When the Log event is fired, the message in question is made available via the Message event parameter. Properties such as EphemeralKey and DeviceParams are also available when they are gathered by the Client. The other event arguments are LogType and LogLevel:

The LogType parameter indicates the type of the log entry. Possible values are:

  • "Info"
  • "RequestHeaders"
  • "ResponseHeaders"
  • "RequestBody"
  • "ResponseBody"
  • "ProxyRequest"
  • "ProxyResponse"
  • "FirewallRequest"
  • "FirewallResponse"
  • "AReq"
  • "ARes"
  • "CReq"
  • "CRes"
  • "RReq"
  • "RRes"
  • "PReq"
  • "PRes"
  • "Erro"
  • "EphemeralKey"
  • "DeviceParams"
The LogLevel configuration setting can be used to specify the detail of the logs raised through the Log event. The LogLevel parameter in the event indicates the log level to which the current message belongs.

It is recommended to output all messages raised in this event to a file for record keeping purposes, or for later debugging issues that may have come up.

The Server and Client components also have DataPacketIn and DataPacketOut events that fire anytime a data packet is received or sent, respectively. The entire data packet is then accessible in the DataPacket event parameter. For encrypted packets, this would contain the full encrypted data. This parameter may be inspected for advanced troubleshooting.

Client.SSLServerAuthentication Event

Fired after the server presents its certificate to the client.

Syntax

client.on('SSLServerAuthentication', listener: (e: {readonly certEncoded: string, readonly certEncodedB: Uint8Array, readonly certSubject: string, readonly certIssuer: string, readonly status: string, accept: boolean}) => void )

Remarks

This event fires with information about the server certificate. The Status property shows why verification failed (otherwise, Status contains the string "OK"). To manually accept an untrusted certificate, the SSLAcceptAnyServerCert setting must be set to True before intiating the connection.

Client.SSLStatus Event

Shows the progress of the secure connection.

Syntax

client.on('SSLStatus', listener: (e: {readonly message: string}) => void )

Remarks

The event is fired for informational and logging purposes only. Used to track the progress of the connection.

Certificate Type

This is the digital certificate being used.

Remarks

This type describes the current digital certificate. The certificate may be a public or private key. The fields are used to identify or select certificates.

Fields

EffectiveDate
string (read-only)

Default Value: ""

This is the date on which this certificate becomes valid. Before this date, it is not valid. The following example illustrates the format of an encoded date:

23-Jan-2000 15:00:00.

Encoded
Uint8Array

Default Value: ""

This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The and properties also may be used to specify a certificate.

When is set, a search is initiated in the current for the private key of the certificate. If the key is found, is updated to reflect the full subject of the selected certificate; otherwise, is set to an empty string.

EncodedB
byte[]

Default Value: ""

This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The and properties also may be used to specify a certificate.

When is set, a search is initiated in the current for the private key of the certificate. If the key is found, is updated to reflect the full subject of the selected certificate; otherwise, is set to an empty string.

ExpirationDate
string (read-only)

Default Value: ""

This is the date the certificate expires. After this date, the certificate will no longer be valid. The following example illustrates the format of an encoded date:

23-Jan-2001 15:00:00.

ExtendedKeyUsage
string

Default Value: ""

This is a comma-delimited list of extended key usage identifiers. These are the same as ASN.1 object identifiers (OIDs).

Fingerprint
string (read-only)

Default Value: ""

This is the hex-encoded, 16-byte MD5 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.

The following example illustrates the format: bc:2a:72:af:fe:58:17:43:7a:5f:ba:5a:7c:90:f7:02

FingerprintSHA1
string (read-only)

Default Value: ""

This is the hex-encoded, 20-byte SHA-1 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.

The following example illustrates the format: 30:7b:fa:38:65:83:ff:da:b4:4e:07:3f:17:b8:a4:ed:80:be:ff:84

FingerprintSHA256
string (read-only)

Default Value: ""

This is the hex-encoded, 32-byte SHA-256 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.

The following example illustrates the format: 6a:80:5c:33:a9:43:ea:b0:96:12:8a:64:96:30:ef:4a:8a:96:86:ce:f4:c7:be:10:24:8e:2b:60:9e:f3:59:53

Issuer
string (read-only)

Default Value: ""

This is the issuer of the certificate. This property contains a string representation of the name of the issuing authority for the certificate.

KeyPassword
string

Default Value: ""

This is the password for the certificate's private key (if any).

Some certificate stores may individually protect certificates' private keys, separate from the standard protection offered by the . . This field can be used to read such password-protected private keys.

Note: this property defaults to the value of . To clear it, you must set the property to the empty string (""). It can be set at any time, but when the private key's password is different from the store's password, then it must be set before calling .

PrivateKey
string (read-only)

Default Value: ""

This is the private key of the certificate (if available). The key is provided as PEM/Base64-encoded data.

Note: The may be available but not exportable. In this case, returns an empty string.

PrivateKeyAvailable
boolean (read-only)

Default Value: False

This property shows whether a is available for the selected certificate. If is True, the certificate may be used for authentication purposes (e.g., server authentication).

PrivateKeyContainer
string (read-only)

Default Value: ""

This is the name of the container for the certificate (if available). This functionality is available only on Windows platforms.

PublicKey
string (read-only)

Default Value: ""

This is the public key of the certificate. The key is provided as PEM/Base64-encoded data.

PublicKeyAlgorithm
string

Default Value: ""

This property contains the textual description of the certificate's public key algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_DH") or an object identifier (OID) string representing the algorithm.

PublicKeyLength
number (read-only)

Default Value: 0

This is the length of the certificate's public key (in bits). Common values are 512, 1024, and 2048.

SerialNumber
string (read-only)

Default Value: ""

This is the serial number of the certificate encoded as a string. The number is encoded as a series of hexadecimal digits, with each pair representing a byte of the serial number.

SignatureAlgorithm
string (read-only)

Default Value: ""

The property contains the text description of the certificate's signature algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_MD5RSA") or an object identifier (OID) string representing the algorithm.

Store
Uint8Array

Default Value: "MY"

This is the name of the certificate store for the client certificate.

The property denotes the type of the certificate store specified by . If the store is password protected, specify the password in .

is used in conjunction with the property to specify client certificates. If has a value, and or is set, a search for a certificate is initiated. Please see the property for details.

Designations of certificate stores are platform-dependent.

The following are designations of the most common User and Machine certificate stores in Windows:

MYA certificate store holding personal certificates with their associated private keys.
CACertifying authority certificates.
ROOTRoot certificates.

When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e. PKCS12 certificate store).

StoreB
byte[]

Default Value: "MY"

This is the name of the certificate store for the client certificate.

The property denotes the type of the certificate store specified by . If the store is password protected, specify the password in .

is used in conjunction with the property to specify client certificates. If has a value, and or is set, a search for a certificate is initiated. Please see the property for details.

Designations of certificate stores are platform-dependent.

The following are designations of the most common User and Machine certificate stores in Windows:

MYA certificate store holding personal certificates with their associated private keys.
CACertifying authority certificates.
ROOTRoot certificates.

When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e. PKCS12 certificate store).

StorePassword
string

Default Value: ""

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

StoreType
CertStoreTypes

Default Value: 0

This is the type of certificate store for this certificate.

The class supports both public and private keys in a variety of formats. When the cstAuto value is used the class will automatically determine the type. This property can take one of the following values:

0 (cstUser - default)For Windows, this specifies that the certificate store is a certificate store owned by the current user. Note: this store type is not available in Java.
1 (cstMachine)For Windows, this specifies that the certificate store is a machine store. Note: this store type is not available in Java.
2 (cstPFXFile)The certificate store is the name of a PFX (PKCS12) file containing certificates.
3 (cstPFXBlob)The certificate store is a string (binary or base64-encoded) representing a certificate store in PFX (PKCS12) format.
4 (cstJKSFile)The certificate store is the name of a Java Key Store (JKS) file containing certificates. Note: this store type is only available in Java.
5 (cstJKSBlob)The certificate store is a string (binary or base64-encoded) representing a certificate store in Java Key Store (JKS) format. Note: this store type is only available in Java.
6 (cstPEMKeyFile)The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate.
7 (cstPEMKeyBlob)The certificate store is a string (binary or base64-encoded) that contains a private key and an optional certificate.
8 (cstPublicKeyFile)The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate.
9 (cstPublicKeyBlob)The certificate store is a string (binary or base64-encoded) that contains a PEM- or DER-encoded public key certificate.
10 (cstSSHPublicKeyBlob)The certificate store is a string (binary or base64-encoded) that contains an SSH-style public key.
11 (cstP7BFile)The certificate store is the name of a PKCS7 file containing certificates.
12 (cstP7BBlob)The certificate store is a string (binary) representing a certificate store in PKCS7 format.
13 (cstSSHPublicKeyFile)The certificate store is the name of a file that contains an SSH-style public key.
14 (cstPPKFile)The certificate store is the name of a file that contains a PPK (PuTTY Private Key).
15 (cstPPKBlob)The certificate store is a string (binary) that contains a PPK (PuTTY Private Key).
16 (cstXMLFile)The certificate store is the name of a file that contains a certificate in XML format.
17 (cstXMLBlob)The certificate store is a string that contains a certificate in XML format.
18 (cstJWKFile)The certificate store is the name of a file that contains a JWK (JSON Web Key).
19 (cstJWKBlob)The certificate store is a string that contains a JWK (JSON Web Key).
21 (cstBCFKSFile)The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store). Note: this store type is only available in Java and .NET.
22 (cstBCFKSBlob)The certificate store is a string (binary or base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format. Note: this store type is only available in Java and .NET.
23 (cstPKCS11)The certificate is present on a physical security key accessible via a PKCS11 interface.

To use a security key the necessary data must first be collected using the CertMgr class. The ListStoreCertificates method may be called after setting CertStoreType to cstPKCS11, CertStorePassword to the PIN, and CertStore to the full path of the PKCS11 dll. The certificate information returned in the CertList event's CertEncoded parameter may be saved for later use.

When using a certificate, pass the previously saved security key information as the and set to the PIN.

Code Example: SSH Authentication with Security Key certmgr.CertStoreType = CertStoreTypes.cstPKCS11; certmgr.OnCertList += (s, e) => { secKeyBlob = e.CertEncoded; }; certmgr.CertStore = @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll"; certmgr.CertStorePassword = "123456"; //PIN certmgr.ListStoreCertificates(); sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, secKeyBlob, "123456", "*"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22);

99 (cstAuto)The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically.

Subject
string

Default Value: ""

This is the subject of the certificate used for client authentication.

This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject.

If a matching certificate is found, the property is set to the full subject of the matching certificate.

If an exact match is not found, the store is searched for subjects containing the value of the property.

If a match is still not found, the property is set to an empty string, and no certificate is selected.

The special value "*" picks a random certificate in the certificate store.

The certificate subject is a comma separated list of distinguished name fields and values. For instance "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are displayed below.

FieldMeaning
CNCommon Name. This is commonly a host name like www.server.com.
OOrganization
OUOrganizational Unit
LLocality
SState
CCountry
EEmail Address

If a field value contains a comma it must be quoted.

SubjectAltNames
string (read-only)

Default Value: ""

This property contains comma-separated lists of alternative subject names for the certificate.

ThumbprintMD5
string (read-only)

Default Value: ""

This property contains the MD5 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.

ThumbprintSHA1
string (read-only)

Default Value: ""

This property contains the SHA-1 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.

ThumbprintSHA256
string (read-only)

Default Value: ""

This property contains the SHA-256 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.

Usage
string

Default Value: ""

This property contains the text description of .

This value will be of one or more of the following strings and will be separated by commas:

  • Digital Signatures
  • Key Authentication
  • Key Encryption
  • Data Encryption
  • Key Agreement
  • Certificate Signing
  • Key Signing

If the provider is OpenSSL, the value is a comma-separated list of X.509 certificate extension names.

UsageFlags
number

Default Value: 0

This property contains the flags that show intended use for the certificate. The value of is a combination of the following flags:

0x80Digital Signatures
0x40Key Authentication (Non-Repudiation)
0x20Key Encryption
0x10Data Encryption
0x08Key Agreement
0x04Certificate Signing
0x02Key Signing

Please see the property for a text representation of .

This functionality currently is not available when the provider is OpenSSL.

Version
string (read-only)

Default Value: ""

This property contains the certificate's version number. The possible values are the strings "V1", "V2", and "V3".

Constructors

public Certificate();

Creates a Certificate instance whose properties can be set. This is useful for use with CERTMGR when generating new certificates.

public Certificate(String certificateFile);

Opens CertificateFile and reads out the contents as an X509 public key.

public Certificate(byte[] certificateData);

Parses CertificateData as an X509 public key.

public Certificate(int certStoreType, String store, String storePassword, String subject);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a file containing the certificate store. StorePassword is the password used to protect the store. After the store has been successfully opened, the class will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X509 certificate's subject Distinguished Name (DN).

public Certificate(int certStoreType, String store, String storePassword, String subject, String configurationString);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a file containing the certificate store. StorePassword is the password used to protect the store. ConfigurationString is a newline separated list of name-value pairs that may be used to modify the default behavior. Possible values include "PersistPFXKey", which shows whether or not the PFX key is persisted after performing operations with the private key. This correlates to the PKCS12_NO_PERSIST_KEY CyrptoAPI option. The default value is True (the key is persisted). "Thumbprint" - a MD5, SHA1, or SHA256 thumbprint of the certificate to load. When specified, this value is used to select the certificate in the store. This is applicable to cstUser, cstMachine, cstPublicKeyFile, and cstPFXFile store types. "UseInternalSecurityAPI" shows whether the platform (default) or the internal security API is used when performing certificate-related operations. After the store has been successfully opened, the class will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X509 certificate's subject Distinguished Name (DN).

public Certificate(int certStoreType, String store, String storePassword, byte[] encoded);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a file containing the certificate store. StorePassword is the password used to protect the store. After the store has been successfully opened, the class will load Encoded as an X509 certificate and search the opened store for a corresponding private key.

public Certificate(int certStoreType, byte[] storeBlob, String storePassword, String subject);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. StoreBlob is a string (binary- or base64-encoded) containing the certificate data. StorePassword is the password used to protect the store. After the store has been successfully opened, the class will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X509 certificate's subject Distinguished Name (DN).

public Certificate(int certStoreType, byte[] storeBlob, String storePassword, String subject, String configurationString);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. StoreBlob is a string (binary- or base64-encoded) containing the certificate data. StorePassword is the password used to protect the store. After the store has been successfully opened, the class will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X509 certificate's subject Distinguished Name (DN).

public Certificate(int certStoreType, byte[] storeBlob, String storePassword, byte[] encoded);

CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a string (binary- or base64-encoded) containing the certificate store. StorePassword is the password used to protect the store. After the store has been successfully opened, the class will load Encoded as an X509 certificate and search the opened store for a corresponding private key.

ChallengeSelectInfo Type

Challenge Selection Information.

Remarks

Selection information that will be presented to the cardholder if the option is single or multi select. will contain the name of the field and will contain the corresponding value.

Fields

Name
string (read-only)

Default Value: ""

The name of the selection option.

Value
string (read-only)

Default Value: ""

The value of the selection option.

Constructors

public ChallengeSelectInfo();



ChallengeTextBox Type

Entry box settings.

Remarks

Defines the settings related to an entry box in the Native UI OTP/Text Template.

Fields

Autofill
boolean (read-only)

Default Value: False

Indicates if the 3DS SDK enables the autofill option for the Challenge Data Entry. When enabled, the 3DS SDK/OS automatically copies the received or saved code or password in the Challenge Data Entry.

AutofillType
number (read-only)

Default Value: 0

Indicates the type of data expected when the Challenge Data Entry Autofill is active. 01 = SMS OTP 02 = Password

KeyboardType
number (read-only)

Default Value: 0

Indicates if the 3DS SDK shall display a numeric or alphanumeric keyboard. 0 - Undefined 1 - Numeric keyboard 2 - Alphanumeric keyboard

Label
string (read-only)

Default Value: ""

Label to specify the expected data entry provided by the ACS.

LengthMax
number (read-only)

Default Value: 0

Indicates to the 3DS SDK the maximum length of the challenge data entry.

Masking
boolean (read-only)

Default Value: False

Indicates that the 3DS SDK shall mask the data entered by the Cardholder.

MaskingToggle
boolean (read-only)

Default Value: False

Indicates that the 3DS SDK shall display a toggle icon, and display the data entered, if selected by the Cardholder.

Constructors

public ChallengeTextBox();



DeviceParam Type

Device information parameter.

Remarks

Device information parameter used in the app flow to provide device information to the directory server.

Fields

Category
number

Default Value: 0

The category of the parameter. Possible values include:

0DV - Data Version
1DD - Device Data
2DPNA - Device Parameter Not Available
3SW - Security Warning

FieldName
string

Default Value: ""

The name of the parameter.

Value
string

Default Value: ""

The value of the parameter.

ValueType
DeviceParamValueTypes

Default Value: 2

The type of the value. Possible values are:

1Array
2String

Constructors

public DeviceParam();

Creates an empty DeviceParam instance whose properties can be set.

public DeviceParam(String fieldName, String value, int valueType, int category);

Creates a DeviceParam instance with the given FieldName, Value, ValueType, and Category parameters.

Extension Type

This type contains extension details.

Remarks

Data necessary to support requirements not otherwise defined in the 3-D Secure message are carried in Message Extensions. This type is used to define extensions to be sent in the next outgoing request.

Fields

Critical
boolean

Default Value: False

Whether the extension is critical.

This setting specifies whether the recipient must understand the contents of the extension to interpret the entire message.

Data
string

Default Value: ""

The extension data as JSON.

This setting specifies the JSON formatted extension data.

Id
string

Default Value: ""

The id of the specified extension.

This setting specifies a unique identifier for the extension.

Name
string

Default Value: ""

The extension name.

This setting specifies the name of the extension as defined by the extension owner.

Constructors

public Extension();

Creates an empty Extension instance whose properties can be set.

public Extension(String id, String name, boolean critical, String data);

Creates an Extension instance with the given Id, Name, Critical, and Data parameters.

Proxy Type

This is the proxy the class will connect to.

Remarks

When connecting through a proxy, this type is used to specify different properties of the proxy, such as the and the .

Fields

AuthScheme
ProxyAuthSchemes

Default Value: 0

This property is used to tell the class which type of authorization to perform when connecting to the proxy. This is used only when the and properties are set.

should be set to authNone (3) when no authentication is expected.

By default, is authBasic (0), and if the and properties are set, the component will attempt basic authentication.

If is set to authDigest (1), digest authentication will be attempted instead.

If is set to authProprietary (2), then the authorization token will not be generated by the class. Look at the configuration file for the class being used to find more information about manually setting this token.

If is set to authNtlm (4), NTLM authentication will be used.

For security reasons, setting this property will clear the values of and .

AutoDetect
boolean

Default Value: False

This property tells the class whether or not to automatically detect and use proxy system settings, if available. The default value is false.

Password
string

Default Value: ""

This property contains a password if authentication is to be used for the proxy.

If is set to Basic Authentication, the and are Base64 encoded and the proxy authentication token will be generated in the form Basic [encoded-user-password].

If is set to Digest Authentication, the and properties are used to respond to the Digest Authentication challenge from the server.

If is set to NTLM Authentication, the and properties are used to authenticate through NTLM negotiation.

Port
number

Default Value: 80

This property contains the Transmission Control Protocol (TCP) port for the proxy (default 80). See the description of the property for details.

Server
string

Default Value: ""

If a proxy is given, then the HTTP request is sent to the proxy instead of the server otherwise specified.

If the property is set to a domain name, a DNS request is initiated. Upon successful termination of the request, the property is set to the corresponding address. If the search is not successful, an error is returned.

SSL
ProxySSLTypes

Default Value: 0

This property determines when to use a Secure Sockets Layer (SSL) for the connection to the proxy. The applicable values are as follows:

psAutomatic (0)Default setting. If the URL is an https URL, the class will use the psTunnel option. If the URL is an http URL, the class will use the psNever option.
psAlways (1)The connection is always SSL enabled.
psNever (2)The connection is not SSL enabled.
psTunnel (3)The connection is made through a tunneling (HTTP) proxy.

User
string

Default Value: ""

This property contains a user name, if authentication is to be used for the proxy.

If is set to Basic Authentication, the and are Base64 encoded and the proxy authentication token will be generated in the form Basic [encoded-user-password].

If is set to Digest Authentication, the and properties are used to respond to the Digest Authentication challenge from the server.

If is set to NTLM Authentication, the and properties are used to authenticate through NTLM negotiation.

Constructors

public Proxy();



public Proxy(String server, int port);



public Proxy(String server, int port, String user, String password);



Config Settings (class ipworks3ds.client)

The class accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.

Client Config Settings

AcceptAnyACSCert:   Whether to accept any ACS certificate during signature validation.

After calling SendAuthRequest the ACSRootCerts property is used to validate the signature in the response. This setting will force the acceptance of the ACS certificate as valid, regardless of the value in ACSRootCerts.

Use this setting with caution, it should only be enabled when there is a specific reason to do so as it bypasses normal signature validation logic.

ACSRenderingDeviceUserInterfaceMode:   User interface mode the ACS will present to cardholder.

Indicates the user interface mode the ACS will present to the cardholder for a challenge. Possible values are:

01 Portrait
02 Landscape
03 Voice
04 Other
ACSRenderingInterface:   Challenge interface type presented to cardholder.

This setting specifies the ACS interface that must be used to present the challenge to the cardholder in an app-based flow. This setting is populated after calling SendAuthRequest in the 3DS Server. This is also populated after calling CheckResponse and passing the Results Request Message.

Possible values are:

01 Native UI
02 HTML UI

ACSRenderingUITemplate:   Challenge type presented to cardholder.

This setting holds the type of challenge that will be presented to the cardholder in an app-based flow. This setting is populated after calling SendAuthRequest in the 3DS Server. This is also populated after calling CheckResponse and passing the Results Request Message.

Possible values are:

01 Text
02 Single Select
03 Multi Select
04 OOB
05 HTML Other (valid only for HTML UI)
06 HTML OOB (valid only for 2.3.1)
07 Information (valid only for 2.3.1)

ACSSignedContent:   String value of the JWS object of the ARes message created by the ACS.

Contains the JWS object created by the ACS for the ARes message. The JWS object body contains the ACSURL, the ACS Ephemeral Public Key, and the SDK Ephemeral Public Key (available in the SDKEphemeralPublicKey configuration setting).

This setting is only applicable to the app-based flow and is informational. It does not need to be queried or set in most cases.

ACSTransactionId:   Unique transaction identifier assigned by the ACS.

This field contains a universally unique transaction identifier assigned by the ACS to identify a single transaction.

ACSURL:   ACS URL to which the challenge request is sent.

This field contains the fully qualified URL of the ACS to be used for the challenge. This will be populated after the call to CheckAuthResponse method if a challenge is required.

ChallengeResponse:   Challenge Response (CRes).

This field contains the decrypted Challenge Response Message (CRes) returned from the ACS.

ChallengeTimeRemaining:   Amount of time left to complete challenge.

This field contains the time remaining to complete the challenge. This is based on the SDKMaxTimeout set when issuing the initial Authorization Request Message.

DeviceRenderingInterface:   SDK Interface Device Rendering Types supported.

Types of SDK Interfaces that the device supports for displaying specific challenge user interfaces within the SDK.

Possible values are:

01 Native
02 HTML
03 Both

One of the elements comprising the Device Rendering Options which define the SDK UI types that the device supports (along with DeviceRenderingInterface). These Options are required in AReq messages.

DeviceRenderingUIType:   SDK UI Types supported.

UI types that the device supports for displaying specific challenge user interfaces within the SDK. Multiple values can be or-ed together to support multiple types. Possible values are:

01 Text
02 Single Select
04 Multi Select
08 OOB
16 HTML Other

Note that currently all SDKs need to support all UI types. In the future, however, this may change (for example, smart watches may support a UI Type not yet defined). In light of this, all UI types are enabled by default (31).

DSTransactionId:   Directory server transaction ID.

Universally unique transaction identifier assigned by the directory server to identify a single transaction.

ErrorCode:   Code from the last error message.

Code indicating the type of problem identified in the error message.

ErrorDescription:   Description from the last error message.

Text describing the problem identified in the error message.

ErrorDetail:   Additional details from the last error message.

Additional detail regarding the problem identified in the error message.

IncomingExtensionCount:   The number of extensions received from the directory server.

This setting holds the number of extensions received in the last message from the directory server. The individual extension data can be accessed via the IncomingExtensionId, $rcfgIncomingExtensionName;, IncomingExtensionCritical, and IncomingExtensionData settings.

IncomingExtensionCritical[Index]:   Whether the extension is critical.

This setting specifies whether the recipient must understand the contents of the extension to interpret the entire message.

IncomingExtensionData[Index]:   The extension data as JSON.

This setting specifies the JSON formatted extension data.

IncomingExtensionId[Index]:   The id of the specified extension.

This setting specifies a unique identifier for the extension.

IncomingExtensionName[Index]:   The extension name.

This setting specifies the name of the extension as defined by the extension owner.

IncomingRawExtensions:   The full JSON formatted extension data received from the directory server.

This setting holds the full JSON formatted extension data that was received in the last message from the directory server. This corresponds to the value for the messageExtension JSON object defined in the specification.

LogLevel:   Level of logging enabled.

This config specifies the level of logging enabled in the component. Possible values include:

0 (None)No events are logged.
1 (Info - default)Informational events are logged.
2 (Verbose)Detailed data is logged.
3 (Debug)Debug data is logged.
This is set to 1 (Info) by default.
MaskSensitive:   Whether to mask sensitive data in the Log event.

This setting controls whether sensitive data is masked in the Log event. When set to True (default) the ChallengeDataEntry value will be replaced with the value ******.

Note: DataPacketOut will always contain the raw unmasked value regardless of this setting. This setting only applies to the Log event.

The default value is True.

MerchantAppURL:   3DS Requestor App URL.

Merchant app URL used so the authentication app can call the merchant app after OOB authentication has occurred. This should be set prior to starting the challenge process.

For instance: merchantScheme://appName?transID=b2385523-a66c-4907-ac3c-91848e8c0067

MessageType:   Type of message that is passed.

This field identifies the type of the message being transmitted.

Possible values include:

AReqAuthentication Request Message
AResAuthentication Response Message
CReqChallenge Request Message
CResChallenge Response Message
PReqPreparation Request Message
PResPreparation Response Message
RReqResults Request Message
RResResults Response Message
ErroError Message

This setting is read-only.

OutgoingRawExtensions:   The full JSON formatted extension data sent to the directory server.

This setting holds the full JSON formatted extension data that will be included in the next outgoing packet. This corresponds to the value for the messageExtension JSON object defined in the specification.

Note: When sending extension data it is generally recommended to use Extensions instead of this setting.

ProtocolVersion:   Protocol version identifier.

This field indicates the protocol version. This should be the protocol version number of the specification utilized by the system creating this message.

Possible values are:

2.1.0 (Default)
2.2.0
2.3.1

ResendChallengeInfo:   Resend challenge information code.

This field contains an indicator to the ACS to resend the challenge information code to the cardholder. This is exclusive to the app flow, and is required for Native UI if the cardholder is requesting the ACS to resend challenge information.

Possible values include:

YResend
NDo not resend

SdkAppId:   SDK App ID.

Universally unique ID created upon all installations of the 3DS Requestor App on a Consumer Device. This will be newly generated and stored by the 3DS SDK for each installation.

SdkAuthenticationType:   SDK Authentication Type.

Authentication methods preferred by the 3DS SDK in order of preference. A comma separated list of the following possible values:

01Static Passcode
02SMS OTP
03Key fob or EMV card reader OTP
04App OTP
05OTP Other
06KBA
07OOB Biometrics
08OOB Login
09OOB Other
10Other
11Push Notification
SDKEphemeralPrivateKey:   Private key component of the ephemeral key pair generated by the Client.

This setting holds the generated private key of the ephemeral key pair that is generated when GetAuthRequest is called. In most cases this does not need to be queried, however if different instances of the class are used between GetAuthRequest and SendChallengeRequest this value must be stored and re-assigned between calls.

If the same instance of the class is used throughout the lifetime of the transaction this setting does not need to be used.

SDKEphemeralPublicKey:   Public key component of the ephemeral key pair generated by the Client.

This setting holds the public key used to establish session keys between the 3DS SDK and ACS.

SDKMaxTimeout:   SDK Maximum Timeout.

Indicates the maximum amount of time (in minutes) for all exchanges. Included in the Authorization Request Message (AReq) sent to the directory server via the SendAuthRequest method. A value of 5 minutes is used by default.

SDKReferenceNumber:   Assigned SDK reference number.

This setting specifies the SDK reference number assigned by EMVCo when the 3DS SDK is approved.

SDKTransactionId:   SDK Transaction ID.

Universally unique transaction identifier assigned by the 3DS SDK to identify a single transaction.

ServerTransactionId:   Unique transaction identifier assigned by the 3DS Server.

Universally unique transaction identifier assigned by the 3DS Server to identify a single transaction.

TransactionStatusReason:   Reason for value of TransactionStatus.

Provides information on why the Transaction Status field has the specified value. For MessageCategory 01 (PA), always included when TransactionStatus = N, U, or R. For MessageCategory 02 (NPA), as defined by the DS.

Possible values are:

01 Card authentication failed
02 Unknown device
03 Unsupported device
04 Exceeds authentication frequency limit
05 Expired card
06 Invalid card number
07 Invalid transaction
08 No Card record
09 Security failure
10 Stolen card
11 Suspected fraud
12 Transaction not permitted to cardholder
13 Cardholder not enrolled in service
14 Transaction timed out at the ACS
15 Low confidence
16 Medium confidence
17 High confidence
18 Very high confidence
19 Exceeds ACS maximum challenges
20 Non-Payment transaction non supported
21 3RI transaction not supported
22 ACS technical issue
23 Decoupled Authentication required by ACS but not requested by 3DS Requestor
24 3DS Requestor Decoupled Max Expiry Time exceeded
25 Decoupled Authentication was provided insufficient time to authenticate cardholder. ACS will not make attempt
26 Authentication attempted but not performed by the cardholder
27 Preferred Authentication Method not supported
28 Validation of content security policy failed
29 Authentication attempted but not completed by the Cardholder. Fall back to Decoupled Authentication
30 Authentication completed successfully but additional authentication of the Cardholder required. Reinitiate as Decoupled Authentication
31-79 Reserved for future EMVCo use (values invalid until defined by EMVCo)
80-99 Reserved for DS use

UseAESGCM:   Whether or not to use AESGCM as the encryption algorithm.

By default, the component will use JWS_ENC_ALG_ID_A128CBC_HS256AES when encrypting packets to send to the ACS. Setting this to true will instruct the component to use JWE_ENC_ALG_ID_A128GCM instead.

XChildCount:   The number of child elements of the current element.

The number of child attributes of the current element. The XChild configuration settings will be indexed from 0 to (XChildCount - 1).

The current element is specified via the XPath configuration setting. This configuration setting is read-only.

XChildName[i]:   The name of the child element.

Provides the name of the i'th child element of the current element.

The current element is specified via the XPath configuration setting. This configuration setting is read-only.

XChildXText[i]:   The inner text of the child element.

Provides the inner text of the i'th child element of the current element.

The current element is specified via the XPath configuration setting. This configuration setting is read-only.

XElement:   The name of the current element.

Provides the name of the current element.

The current element is specified via the XPath configuration setting. This configuration setting is read-only.

XParent:   The parent of the current element.

Provides the parent of the current element.

The current element is specified via the XPath configuration setting. This configuration setting is read-only.

XPath:   Provides a way to point to a specific element in the returned XML or JSON response.

The XPath setting allows you to point to specific elements in the XML or JSON response.

When XPath is set to a valid path, XElement points to the name of the element, with XText, XParent, XSubTree, XChildCount, XChildName[i], and XChildXText[i] providing other properties of the element.

XPath Syntax

XPath syntax is available for both XML and JSON documents. An XPath is a series of one or more element accessors separated by the / character, for example: /A/B/C/D. An XPath can be absolute (i.e., it starts with /), or it can be relative to the current XPath location.

The following are possible values for an element accessor, which operates relative to the current location specified by the XPath accessors which proceed it in the overall XPath string:

Accessor Description
name The first element with a particular name. Can be *.
[i] The i-th element.
name[i] The i-th element with a particular name.
[last()] The last element.
[last()-i] The element i before the last element.
name[@attrname="attrvalue"]The first element with a particular name that contains the specified attribute-value pair.

Supports single and double quotes. (XML Only)

. The current element.
.. The parent element.
Note: XPath indices are 1-based.

XPath Examples

Assuming the following XML response:

<firstlevel>
  <one>value</one>
  <two>
    <item>first</item>
    <item>second</item>
  </two>
  <three>value three</three>
</firstlevel>

Or, alternatively, the following JSON response:

{
  "firstlevel": {
    "one": "value",
    "two": ["first", "second"],
    "three": "value three"
  }
}

Here are some examples of valid XPaths:

DescriptionXML XPath JSON XPath
Document root / /json
Specific element /firstlevel/one /json/firstlevel/one
i-th child /firstlevel/two/item[2]/json/firstlevel/two/[2]

This is not an exhaustive list by any means, but should provide a general idea of the possibilities.

XSubTree:   A snapshot of the current element in the document.

Provides the entirety of the current element (including its sub-elements).

The current element is specified via the XPath configuration setting. This configuration setting is read-only.

XText:   The text of the current element.

Provides the inner text of the current element.

The current element is specified in the XPath configuration setting. This configuration setting is read-only.

SSL Config Settings

LogSSLPackets:   Controls whether SSL packets are logged when using the internal security API.

When SSLProvider is set to Internal, this setting controls whether SSL packets should be logged. By default, this setting is False, as it is only useful for debugging purposes.

When enabled, SSL packet logs are output using the SSLStatus event, which will fire each time an SSL packet is sent or received.

Enabling this setting has no effect if SSLProvider is set to Platform.

OpenSSLCADir:   The path to a directory containing CA certificates.

This functionality is available only when the provider is OpenSSL.

The path set by this property should point to a directory containing CA certificates in PEM format. The files each contain one CA certificate. The files are looked up by the CA subject name hash value, which must hence be available. If more than one CA certificate with the same name hash value exist, the extension must be different (e.g. 9d66eef0.0, 9d66eef0.1 etc). OpenSSL recommends to use the c_rehash utility to create the necessary links. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.

OpenSSLCAFile:   Name of the file containing the list of CA's trusted by your application.

This functionality is available only when the provider is OpenSSL.

The file set by this property should contain a list of CA certificates in PEM format. The file can contain several CA certificates identified by

-----BEGIN CERTIFICATE-----

... (CA certificate in base64 encoding) ...

-----END CERTIFICATE-----

sequences. Before, between, and after the certificates text is allowed which can be used e.g. for descriptions of the certificates. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.

OpenSSLCipherList:   A string that controls the ciphers to be used by SSL.

This functionality is available only when the provider is OpenSSL.

The format of this string is described in the OpenSSL man page ciphers(1) section "CIPHER LIST FORMAT". Please refer to it for details. The default string "DEFAULT" is determined at compile time and is normally equivalent to "ALL:!ADH:RC4+RSA:+SSLv2:@STRENGTH".

OpenSSLPrngSeedData:   The data to seed the pseudo random number generator (PRNG).

This functionality is available only when the provider is OpenSSL.

By default OpenSSL uses the device file "/dev/urandom" to seed the PRNG and setting OpenSSLPrngSeedData is not required. If set, the string specified is used to seed the PRNG.

ReuseSSLSession:   Determines if the SSL session is reused.

If set to true, the class will reuse the context if and only if the following criteria are met:

  • The target host name is the same.
  • The system cache entry has not expired (default timeout is 10 hours).
  • The application process that calls the function is the same.
  • The logon session is the same.
  • The instance of the class is the same.

SSLAcceptAnyServerCert:   Whether to trust any certificate presented by the server.

This setting disables all certificate verification when set to True. This configuration setting must be enabled to trust a self-signed certificate. It is not recommended to enable this configuration setting in a production environment. The default value is False.

SSLCACerts:   A newline separated list of CA certificate to use during SSL client authentication.

This setting specifies one or more CA certificates to be included in the request when performing SSL client authentication. Some servers require the entire chain, including CA certificates, to be presented when performing SSL client authentication. The value of this setting is a newline (CrLf) separated list of certificates. For instance:

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

SSLCipherStrength:   The minimum cipher strength used for bulk encryption.

This minimum cipher strength largely dependent on the security modules installed on the system. If the cipher strength specified is not supported, an error will be returned when connections are initiated.

Please note that this setting contains the minimum cipher strength requested from the security library. The actual cipher strength used for the connection is shown by the SSLStatus event.

Use this setting with caution. Requesting a lower cipher strength than necessary could potentially cause serious security vulnerabilities in your application.

When the provider is OpenSSL, SSLCipherStrength is currently not supported. This functionality is instead made available through the OpenSSLCipherList config setting.

SSLEnabledCipherSuites:   The cipher suite to be used in an SSL negotiation.

The enabled cipher suites to be used in SSL negotiation.

By default, the enabled cipher suites will include all available ciphers ("*").

The special value "*" means that the class will pick all of the supported cipher suites. If SSLEnabledCipherSuites is set to any other value, only the specified cipher suites will be considered.

Multiple cipher suites are separated by semicolons.

Example values when SSLProvider is set to Platform: obj.config("SSLEnabledCipherSuites=*"); obj.config("SSLEnabledCipherSuites=CALG_AES_256"); obj.config("SSLEnabledCipherSuites=CALG_AES_256;CALG_3DES"); Possible values when SSLProvider is set to Platform include:

  • CALG_3DES
  • CALG_3DES_112
  • CALG_AES
  • CALG_AES_128
  • CALG_AES_192
  • CALG_AES_256
  • CALG_AGREEDKEY_ANY
  • CALG_CYLINK_MEK
  • CALG_DES
  • CALG_DESX
  • CALG_DH_EPHEM
  • CALG_DH_SF
  • CALG_DSS_SIGN
  • CALG_ECDH
  • CALG_ECDH_EPHEM
  • CALG_ECDSA
  • CALG_ECMQV
  • CALG_HASH_REPLACE_OWF
  • CALG_HUGHES_MD5
  • CALG_HMAC
  • CALG_KEA_KEYX
  • CALG_MAC
  • CALG_MD2
  • CALG_MD4
  • CALG_MD5
  • CALG_NO_SIGN
  • CALG_OID_INFO_CNG_ONLY
  • CALG_OID_INFO_PARAMETERS
  • CALG_PCT1_MASTER
  • CALG_RC2
  • CALG_RC4
  • CALG_RC5
  • CALG_RSA_KEYX
  • CALG_RSA_SIGN
  • CALG_SCHANNEL_ENC_KEY
  • CALG_SCHANNEL_MAC_KEY
  • CALG_SCHANNEL_MASTER_HASH
  • CALG_SEAL
  • CALG_SHA
  • CALG_SHA1
  • CALG_SHA_256
  • CALG_SHA_384
  • CALG_SHA_512
  • CALG_SKIPJACK
  • CALG_SSL2_MASTER
  • CALG_SSL3_MASTER
  • CALG_SSL3_SHAMD5
  • CALG_TEK
  • CALG_TLS1_MASTER
  • CALG_TLS1PRF
Example values when SSLProvider is set to Internal: obj.config("SSLEnabledCipherSuites=*"); obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA"); obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA;TLS_DH_ANON_WITH_AES_128_CBC_SHA"); Possible values when SSLProvider is set to Internal include:
  • TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
  • TLS_RSA_WITH_AES_256_GCM_SHA384
  • TLS_RSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
  • TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
  • TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
  • TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
  • TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
  • TLS_DH_RSA_WITH_AES_128_GCM_SHA256 (Not Recommended)
  • TLS_DH_RSA_WITH_AES_256_GCM_SHA384 (Not Recommended)
  • TLS_DH_DSS_WITH_AES_128_GCM_SHA256 (Not Recommended)
  • TLS_DH_DSS_WITH_AES_256_GCM_SHA384 (Not Recommended)
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
  • TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
  • TLS_RSA_WITH_AES_256_CBC_SHA256
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
  • TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
  • TLS_RSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
  • TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
  • TLS_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
  • TLS_DHE_DSS_WITH_AES_256_CBC_SHA
  • TLS_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_DHE_DSS_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
  • TLS_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_RSA_WITH_DES_CBC_SHA
  • TLS_DHE_RSA_WITH_DES_CBC_SHA
  • TLS_DHE_DSS_WITH_DES_CBC_SHA
  • TLS_RSA_WITH_RC4_128_MD5
  • TLS_RSA_WITH_RC4_128_SHA

When TLS 1.3 is negotiated (see SSLEnabledProtocols) only the following cipher suites are supported:

  • TLS_AES_256_GCM_SHA384
  • TLS_CHACHA20_POLY1305_SHA256
  • TLS_AES_128_GCM_SHA256

SSLEnabledCipherSuites is used together with SSLCipherStrength.

SSLEnabledProtocols:   Used to enable/disable the supported security protocols.

Used to enable/disable the supported security protocols.

Not all supported protocols are enabled by default (the value of this setting is 4032). If you want more granular control over the enabled protocols, you can set this property to the binary 'OR' of one or more of the following values:

TLS1.312288 (Hex 3000)
TLS1.23072 (Hex C00) (Default)
TLS1.1768 (Hex 300) (Default)
TLS1 192 (Hex C0) (Default)
SSL3 48 (Hex 30)
SSL2 12 (Hex 0C)

SSLEnabledProtocols - TLS 1.3 Notes

In the JavaScript edition the platform implementation is used when TLS 1.3 is enabled and SSLEnabledCipherSuites and other similar SSL configuration settings are not supported.

SSLEnableRenegotiation:   Whether the renegotiation_info SSL extension is supported.

This setting specifies whether the renegotiation_info SSL extension will be used in the request when using the internal security API. This setting is true by default, but can be set to false to disable the extension.

This setting is only applicable when SSLProvider is set to Internal.

SSLIncludeCertChain:   Whether the entire certificate chain is included in the SSLServerAuthentication event.

This setting specifies whether the Encoded parameter of the SSLServerAuthentication event contains the full certificate chain. By default this value is False and only the leaf certificate will be present in the Encoded parameter of the SSLServerAuthentication event.

If set to True all certificates returned by the server will be present in the Encoded parameter of the SSLServerAuthentication event. This includes the leaf certificate, any intermediate certificate, and the root certificate.

SSLKeyLogFile:   The location of a file where per-session secrets are written for debugging purposes.

This setting optionally specifies the full path to a file on disk where per-session secrets are stored for debugging purposes.

When set, the class will save the session secrets in the same format as the SSLKEYLOGFILE environment variable functionality used by most major browsers and tools such as Chrome, Firefox, and cURL. This file can then be used in tools such as Wireshark to decrypt TLS traffice for debugging purposes. When writing to this file the class will only append, it will not overwrite previous values.

Note: This setting is only applicable when SSLProvider is set to Internal.

SSLNegotiatedCipher:   Returns the negotiated cipher suite.

Returns the cipher suite negotiated during the SSL handshake.

Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipher[connId]");

SSLNegotiatedCipherStrength:   Returns the negotiated cipher suite strength.

Returns the strength of the cipher suite negotiated during the SSL handshake.

Note: For server components (e.g.TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipherStrength[connId]");

SSLNegotiatedCipherSuite:   Returns the negotiated cipher suite.

Returns the cipher suite negotiated during the SSL handshake represented as a single string.

Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipherSuite[connId]");

SSLNegotiatedKeyExchange:   Returns the negotiated key exchange algorithm.

Returns the key exchange algorithm negotiated during the SSL handshake.

Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedKeyExchange[connId]");

SSLNegotiatedKeyExchangeStrength:   Returns the negotiated key exchange algorithm strength.

Returns the strenghth of the key exchange algorithm negotiated during the SSL handshake.

Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedKeyExchangeStrength[connId]");

SSLNegotiatedVersion:   Returns the negotiated protocol version.

Returns the protocol version negotiated during the SSL handshake.

Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedVersion[connId]");

SSLSecurityFlags:   Flags that control certificate verification.

The following flags are defined (specified in hexadecimal notation). They can be or-ed together to exclude multiple conditions:

0x00000001Ignore time validity status of certificate.
0x00000002Ignore time validity status of CTL.
0x00000004Ignore non-nested certificate times.
0x00000010Allow unknown Certificate Authority.
0x00000020Ignore wrong certificate usage.
0x00000100Ignore unknown certificate revocation status.
0x00000200Ignore unknown CTL signer revocation status.
0x00000400Ignore unknown Certificate Authority revocation status.
0x00000800Ignore unknown Root revocation status.
0x00008000Allow test Root certificate.
0x00004000Trust test Root certificate.
0x80000000Ignore non-matching CN (certificate CN not-matching server name).

This functionality is currently not available when the provider is OpenSSL.

SSLServerCACerts:   A newline separated list of CA certificate to use during SSL server certificate validation.

This setting optionally specifies one or more CA certificates to be used when verifying the server certificate. When verifying the server's certificate the certificates trusted by the system will be used as part of the verification process. If the server's CA certificates are not installed to the trusted system store, they may be specified here so they are included when performing the verification process. This setting should only be set if the server's CA certificates are not already trusted on the system and cannot be installed to the trusted system store.

The value of this setting is a newline (CrLf) separated list of certificates. For instance:

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

TLS12SignatureAlgorithms:   Defines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal.

This setting specifies the allowed server certificate signature algorithms when SSLProvider is set to Internal and SSLEnabledProtocols is set to allow TLS 1.2.

When specified the class will verify that the server certificate signature algorithm is among the values specified in this setting. If the server certificate signature algorithm is unsupported the class .

The format of this value is a comma separated list of hash-signature combinations. For instance: component.SSLProvider = TCPClientSSLProviders.sslpInternal; component.Config("SSLEnabledProtocols=3072"); //TLS 1.2 component.Config("TLS12SignatureAlgorithms=sha256-rsa,sha256-dsa,sha1-rsa,sha1-dsa"); The default value for this setting is sha512-ecdsa,sha512-rsa,sha512-dsa,sha384-ecdsa,sha384-rsa,sha384-dsa,sha256-ecdsa,sha256-rsa,sha256-dsa,sha224-ecdsa,sha224-rsa,sha224-dsa,sha1-ecdsa,sha1-rsa,sha1-dsa.

In order to not restrict the server's certificate signature algorithm, specify an empty string as the value for this setting, which will cause the signature_algorithms TLS 1.2 extension to not be sent.

TLS12SupportedGroups:   The supported groups for ECC.

This setting specifies a comma separated list of named groups used in TLS 1.2 for ECC.

The default value is ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1.

When using TLS 1.2 and SSLProvider is set to Internal, the values refer to the supported groups for ECC. The following values are supported:

  • "ecdhe_secp256r1" (default)
  • "ecdhe_secp384r1" (default)
  • "ecdhe_secp521r1" (default)

TLS13KeyShareGroups:   The groups for which to pregenerate key shares.

This setting specifies a comma separated list of named groups used in TLS 1.3 for key exchange. The groups specified here will have key share data pregenerated locally before establishing a connection. This can prevent an additional round trip during the handshake if the group is supported by the server.

The default value is set to balance common supported groups and the computational resources required to generate key shares. As a result only some groups are included by default in this setting.

Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used which is not present in this list it will incur an additional round trip and time to generate the key share for that group.

In most cases this setting does not need to be modified. This should only be modified if there is a specific reason to do so.

The default value is ecdhe_x25519,ecdhe_secp256r1,ecdhe_secp384r1,ffdhe_2048,ffdhe_3072

The values are ordered from most preferred to least preferred. The following values are supported:

  • "ecdhe_x25519" (default)
  • "ecdhe_x448"
  • "ecdhe_secp256r1" (default)
  • "ecdhe_secp384r1" (default)
  • "ecdhe_secp521r1"
  • "ffdhe_2048" (default)
  • "ffdhe_3072" (default)
  • "ffdhe_4096"
  • "ffdhe_6144"
  • "ffdhe_8192"

TLS13SignatureAlgorithms:   The allowed certificate signature algorithms.

This setting holds a comma separated list of allowed signature algorithms. Possible values are:

  • "ed25519" (default)
  • "ed448" (default)
  • "ecdsa_secp256r1_sha256" (default)
  • "ecdsa_secp384r1_sha384" (default)
  • "ecdsa_secp521r1_sha512" (default)
  • "rsa_pkcs1_sha256" (default)
  • "rsa_pkcs1_sha384" (default)
  • "rsa_pkcs1_sha512" (default)
  • "rsa_pss_sha256" (default)
  • "rsa_pss_sha384" (default)
  • "rsa_pss_sha512" (default)
The default value is rsa_pss_sha256,rsa_pss_sha384,rsa_pss_sha512,rsa_pkcs1_sha256,rsa_pkcs1_sha384,rsa_pkcs1_sha512,ecdsa_secp256r1_sha256,ecdsa_secp384r1_sha384,ecdsa_secp521r1_sha512,ed25519,ed448. This setting is only applicable when SSLEnabledProtocols includes TLS 1.3.
TLS13SupportedGroups:   The supported groups for (EC)DHE key exchange.

This setting specifies a comma separated list of named groups used in TLS 1.3 for key exchange. This setting should only be modified if there is a specific reason to do so.

The default value is ecdhe_x25519,ecdhe_x448,ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1,ffdhe_2048,ffdhe_3072,ffdhe_4096,ffdhe_6144,ffdhe_8192

The values are ordered from most preferred to least preferred. The following values are supported:

  • "ecdhe_x25519" (default)
  • "ecdhe_x448" (default)
  • "ecdhe_secp256r1" (default)
  • "ecdhe_secp384r1" (default)
  • "ecdhe_secp521r1" (default)
  • "ffdhe_2048" (default)
  • "ffdhe_3072" (default)
  • "ffdhe_4096" (default)
  • "ffdhe_6144" (default)
  • "ffdhe_8192" (default)

Trappable Errors (class ipworks3ds.client)

Client Errors

601   Could not create ephemeral key.
602   Invalid certificate.
603   Invalid operation.
604   Invalid ClientAuth data.
605   The errorCode element in Erro message is invalid.
606   Invalid index.
1101   Protocol error. Received invalid message.
1102   Protocol error. Invalid message version.
1201   Protocol error. Missing data element.
1202   Protocol error. Unrecognized critical extension.
1301   Protocol error. Unrecognized transaction Id.
1302   Decryption failed.

HTTP Errors

118   Firewall Error. Error description contains detailed message.
143   Busy executing current method.
151   HTTP protocol error. The error message has the server response.
152   No server specified in URL
153   Specified URLScheme is invalid.
155   Range operation is not supported by server.
156   Invalid cookie index (out of range).
301   Interrupted.
302   Can't open AttachedFile.

TCPClient Errors

100   You cannot change the RemotePort at this time. A connection is in progress.
101   You cannot change the RemoteHost (Server) at this time. A connection is in progress.
102   The RemoteHost address is invalid (0.0.0.0).
104   Already connected. If you want to reconnect, close the current connection first.
106   You cannot change the LocalPort at this time. A connection is in progress.
107   You cannot change the LocalHost at this time. A connection is in progress.
112   You cannot change MaxLineLength at this time. A connection is in progress.
116   RemotePort cannot be zero. Please specify a valid service port number.
117   You cannot change the UseConnection option while the class is active.
135   Operation would block.
201   Timeout.
211   Action impossible in control's present state.
212   Action impossible while not connected.
213   Action impossible while listening.
301   Timeout.
302   Could not open file.
434   Unable to convert string to selected CodePage.
1105   Already connecting. If you want to reconnect, close the current connection first.
1117   You need to connect first.
1119   You cannot change the LocalHost at this time. A connection is in progress.
1120   Connection dropped by remote host.

SSL Errors

270   Cannot load specified security library.
271   Cannot open certificate store.
272   Cannot find specified certificate.
273   Cannot acquire security credentials.
274   Cannot find certificate chain.
275   Cannot verify certificate chain.
276   Error during handshake.
280   Error verifying certificate.
281   Could not find client certificate.
282   Could not find server certificate.
283   Error encrypting data.
284   Error decrypting data.

TCP/IP Errors

10004   [10004] Interrupted system call.
10009   [10009] Bad file number.
10013   [10013] Access denied.
10014   [10014] Bad address.
10022   [10022] Invalid argument.
10024   [10024] Too many open files.
10035   [10035] Operation would block.
10036   [10036] Operation now in progress.
10037   [10037] Operation already in progress.
10038   [10038] Socket operation on non-socket.
10039   [10039] Destination address required.
10040   [10040] Message too long.
10041   [10041] Protocol wrong type for socket.
10042   [10042] Bad protocol option.
10043   [10043] Protocol not supported.
10044   [10044] Socket type not supported.
10045   [10045] Operation not supported on socket.
10046   [10046] Protocol family not supported.
10047   [10047] Address family not supported by protocol family.
10048   [10048] Address already in use.
10049   [10049] Can't assign requested address.
10050   [10050] Network is down.
10051   [10051] Network is unreachable.
10052   [10052] Net dropped connection or reset.
10053   [10053] Software caused connection abort.
10054   [10054] Connection reset by peer.
10055   [10055] No buffer space available.
10056   [10056] Socket is already connected.
10057   [10057] Socket is not connected.
10058   [10058] Can't send after socket shutdown.
10059   [10059] Too many references, can't splice.
10060   [10060] Connection timed out.
10061   [10061] Connection refused.
10062   [10062] Too many levels of symbolic links.
10063   [10063] File name too long.
10064   [10064] Host is down.
10065   [10065] No route to host.
10066   [10066] Directory not empty
10067   [10067] Too many processes.
10068   [10068] Too many users.
10069   [10069] Disc Quota Exceeded.
10070   [10070] Stale NFS file handle.
10071   [10071] Too many levels of remote in path.
10091   [10091] Network subsystem is unavailable.
10092   [10092] WINSOCK DLL Version out of range.
10093   [10093] Winsock not loaded yet.
11001   [11001] Host not found.
11002   [11002] Non-authoritative 'Host not found' (try again or check DNS setup).
11003   [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP.
11004   [11004] Valid name, no data record (check DNS setup).