DTLSClient Module

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The DTLSClient module provides client-side functionality for secure UDP communication utilizing the Datagram Transport Layer Security (DTLS) protocol.

Syntax

IPWorksDTLS.DTLSClient

Remarks

The DTLSClient class functions as a client that facilitates in connecting to DTLS servers and offers a convenient means of transmitting and receiving datagrams over the established, secure connection.

Connecting to a Server

First, the RemoteHost and RemotePort must be set to the address and port of the target DTLS server. The Timeout property can be used to specify a timeout when connecting to the server. To initiate the connection, call Connect.

After doing so, the handshake process will begin. Relevant handshake details will be reported by the SSLStatus event. Initially, the server will present its certificate to the client. The certificate can be evaluated within the SSLServerAuthentication event. By default, the class will provide a recommendation of whether to accept or reject the certificate, and reasoning behind the recommendation. Regardless, the certificate can be manually accepted (or rejected) within this event.

In some cases, the server requires the client to present a certificate as well. In this case, a valid certificate will need to be specified via the SSLCert property.

Once the connection is complete (or fails), the Connected event will fire. Note that this event will fire if a connection succeeds or fails. If successful, the event will fire with a StatusCode of 0. If this value is non-zero, it indicates the connection was unsuccessful. The Description parameter will contain relevant details. Upon successful connection, the Connected property will be set to True. This process may look like the following:

dtlsclient.OnConnected += (o, e) => { if (e.StatusCode == 0) { Console.WriteLine("Connection successful!"); } else { Console.WriteLine("Connection failed."); Console.WriteLine("Error code: " + e.StatusCode); Console.WriteLine("Error description: " + e.Description); } }; dtlsclient.OnSSLServerAuthentication += (o, e) => { if (e.Accept) return; Console.Write("Server provided the following certificate:\nIssuer: " + e.CertIssuer + "\nSubject: " + e.CertSubject + "\n"); Console.Write("The following problems have been determined for this certificate: " + e.Status + "\n"); Console.Write("Would you like to accept anyways? [y/n] "); if (Console.Read() == 'y') e.Accept = true; }; dtlsclient.RemoteHost = "remote_ip"; dtlsclient.RemotePort = 1234; dtlsclient.Timeout = 30; // if client authentication is applicable dtlsclient.SSLCert = new Certificate("/path/to/cert.pfx", CertStoreTypes.cstPFXFile, "cert_password", "cert_subject"); dtlsclient.Connect();

Sending and Receiving Data

Once a successful connection is established, the class can send data to the server via SendText or SendBytes.

The class will also be able to receive data from the server via the DataIn event. Note that this event is non-reentrant, and it is recommended to offload time-consuming operations to ensure the best performance.

If required, the PauseData method can be called, disabling the reception of incoming data from the server. Data reception can later be enabled via the ProcessData method. Note that if this reception is disabled, the server may continue sending data, which will remain unprocessed by the class. In this case, the underlying socket buffer may be filled. This can result in possible data loss originating from the server. Please use these methods with caution.

The complete process may look like the following:

dtlsclient.OnSSLServerAuthentication += (o, e) => { e.Accept = true; }; dtlsclient.OnDataIn += (o, e) => { Console.WriteLine("Packet received from server."); Console.WriteLine("Datagram: " + e.Datagram); } dtlsclient.RemoteHost = "remote_ip"; dtlsclient.RemotePort = 1234; dtlsclient.Connect(); dtlsclient.SendText("Hello World!"); while (true) { dtlsclient.DoEvents(); }

Disconnecting from a Server

Once the connection to the server is broken, the Disconnected event will fire. The disconnection can be performed by calling Disconnect, or performed by the server.

In the case a connection ends and an error is encountered, the StatusCode and Description parameters will contain relevant details regarding the error. For example:

dtlsclient.OnDisconnected += (o, e) => { if (e.StatusCode == 0) { Console.WriteLine("Connection ended."); } else { Console.WriteLine("Connection ended."); Console.WriteLine("Error code: " + e.StatusCode); Console.WriteLine("Error description: " + e.Description); } }; dtlsclient.RemoteHost = "remote_ip"; dtlsclient.RemotePort = 1234; dtlsclient.Connect(); ... ... ... dtlsclient.Disconnect();

Additional Information

To support KeepAlive functionality, it is important to note that DoEvents must be called regularly in both console and form-based applications. This is to ensure the class sends keep-alive (or Heartbeat) packets to the server in a timely manner.

In form-based applications, this does not apply if KeepAlive is False.

Property List

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

AcceptDataThis property indicates whether data reception is currently enabled.
ConnectedThis property indicates whether the module is connected.
KeepAliveWhen True, keep-alive functionality is enabled via the DTLS Heartbeat Extension.
LocalHostThe name of the local host or user-assigned IP interface through which connections are initiated or accepted.
LocalPortThis property includes the User Datagram Protocol (UDP) port in the local host where UDP binds.
RemoteHostThis property includes the address of the remote host. Domain names are resolved to IP addresses.
RemotePortThis property specifies the User Datagram Protocol (UDP) port in the remote host.
SSLAcceptServerCertInstructs the module to unconditionally accept the server certificate that matches the supplied certificate.
SSLCertThe certificate to be used during Secure Sockets Layer (SSL) negotiation.
SSLServerCertThe server certificate for the last established connection.
TimeoutThis property specifies a timeout when connecting to a server.

Method List

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

ConfigSets or retrieves a configuration setting.
ConnectThis method connects to a remote host.
DisconnectThis method disconnects from the remote host.
DoEventsThis method processes events from the internal message queue.
PauseDataThis method pauses data reception.
ProcessDataThis method reenables data reception after a call to PauseData .
ResetThis method will reset the module.
SendBytesThis method sends binary data to the remote host.
SendTextThis method sends text to the remote host.

Event List

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

ConnectedThis event is fired immediately after a connection completes (or fails).
DataInThis event is fired when data are received.
DisconnectedThis event is fired when a connection is closed.
ErrorFired when information is available about errors during data delivery.
LogThis event fires once for each log message.
SSLServerAuthenticationThis event is fired after the server presents its certificate to the client.
SSLStatusFired when secure connection progress messages are available.

Config Settings

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

KeepAliveIntervalThe retry interval, in seconds, to be used when a HeartbeatRequest is sent and no response is received.
KeepAliveModeSpecifies the Heartbeat (or keep-alive) mode to be used by the module.
KeepAliveTimeThe inactivity time, in seconds, before a HeartbeatRequest is sent.
LogLevelThis configuration controls the level of detail that is logged through the Log event.
CaptureIPPacketInfoUsed to capture the packet information.
DelayHostResolutionWhether the hostname is resolved when RemoteHost is set.
DestinationAddressUsed to get the destination address from the packet information.
DontFragmentUsed to set the Don't Fragment flag of outgoing packets.
LocalHostThe name of the local host through which connections are initiated or accepted.
LocalPortThe port in the local host where the module binds.
MaxPacketSizeThe maximum length of the packets that can be received.
QOSDSCPValueUsed to specify an arbitrary QOS/DSCP setting (optional).
QOSTrafficTypeUsed to specify QOS/DSCP settings (optional).
ShareLocalPortIf set to True, allows more than one instance of the module to be active on the same local port.
UseConnectionDetermines whether to use a connected socket.
UseIPv6Whether or not to use IPv6.
AbsoluteTimeoutDetermines whether timeouts are inactivity timeouts or absolute timeouts.
FirewallDataUsed to send extra data to the firewall.
InBufferSizeThe size in bytes of the incoming queue of the socket.
OutBufferSizeThe size in bytes of the outgoing queue of the socket.
LogSSLPacketsControls whether SSL packets are logged.
ReuseSSLSessionDetermines if the SSL session is reused.
SSLCACertsA newline separated list of CA certificates to be included when performing an SSL handshake.
SSLCheckCRLWhether to check the Certificate Revocation List for the server certificate.
SSLCheckOCSPWhether to use OCSP to check the status of the server certificate.
SSLCipherStrengthThe minimum cipher strength used for bulk encryption.
SSLClientCACertsA newline separated list of CA certificates to use during SSL client certificate validation.
SSLEnabledCipherSuitesSpecifies the cipher suites to be used during TLS negotiation.
SSLEnabledProtocolsUsed to enable/disable the supported security protocols.
SSLEnableRenegotiationWhether the renegotiation_info SSL extension is supported.
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 certificates 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.
BuildInfoInformation about the product's build.
CodePageThe system code page used for Unicode to Multibyte translations.
LicenseInfoInformation about the current license.
MaskSensitiveDataWhether sensitive data is masked in log messages.
UseInternalSecurityAPIWhether or not to use the system security libraries or an internal implementation.

AcceptData Property (DTLSClient Module)

This property indicates whether data reception is currently enabled.

Syntax

public var acceptData: Bool {
  get {...}
}


@property (nonatomic,readonly,assign,getter=acceptData) BOOL acceptData;

- (BOOL)acceptData;

Default Value

True

Remarks

This property indicates whether data reception is currently enabled. When , data reception is disabled and the DataIn event will not fire. Use the PauseData and ProcessData methods to pause and resume data reception.

This property is read-only.

Connected Property (DTLSClient Module)

This property indicates whether the module is connected.

Syntax

public var connected: Bool {
  get {...}
}


@property (nonatomic,readonly,assign,getter=connected) BOOL connected;

- (BOOL)connected;

Default Value

False

Remarks

This property indicates whether the class is connected to the remote host. Use the Connect and Disconnect methods to manage the connection.

This property is read-only.

KeepAlive Property (DTLSClient Module)

When True, keep-alive functionality is enabled via the DTLS Heartbeat Extension.

Syntax

public var keepAlive: Bool {
  get {...}
  set {...}
}


@property (nonatomic,readwrite,assign,getter=keepAlive,setter=setKeepAlive:) BOOL keepAlive;

- (BOOL)keepAlive;
- (void)setKeepAlive :(BOOL)newKeepAlive;

Default Value

False

Remarks

This property enables keep-alive functionality for the established connection via the DTLS Heartbeat Extension (RFC 6520). Enabling this option can prevent a long connection from timing out in case of inactivity.

Note: For this functionality to work as intended, DoEvents must be called frequently in both console and form-based applications (e.g., using a loop or timer).

Additionally, DTLS server implementations are not required to support Heartbeats.

LocalHost Property (DTLSClient Module)

The name of the local host or user-assigned IP interface through which connections are initiated or accepted.

Syntax

public var localHost: String {
  get {...}
  set {...}
}


@property (nonatomic,readwrite,assign,getter=localHost,setter=setLocalHost:) NSString* localHost;

- (NSString*)localHost;
- (void)setLocalHost :(NSString*)newLocalHost;

Default Value

""

Remarks

This property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multihomed hosts (machines with more than one IP interface) setting LocalHost to the IP address of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface. It is recommended to provide an IP address rather than a hostname when setting this property to ensure the desired interface is used.

If the class is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multihomed hosts (machines with more than one IP interface).

Note: LocalHost is not persistent. You must always set it in code, and never in the property window.

LocalPort Property (DTLSClient Module)

This property includes the User Datagram Protocol (UDP) port in the local host where UDP binds.

Syntax

public var localPort: Int32 {
  get {...}
  set {...}
}


@property (nonatomic,readwrite,assign,getter=localPort,setter=setLocalPort:) int localPort;

- (int)localPort;
- (void)setLocalPort :(int)newLocalPort;

Default Value

0

Remarks

The LocalPort property must be set before UDP is activated (Active is set to True). This instructs the class to bind to a specific port (or communication endpoint) in the local machine.

Setting it to 0 (default) enables the Transmission Control Protocol (TCP)/IP stack to choose a port at random. The chosen port will be shown by the LocalPort property after the connection is established.

LocalPort cannot be changed once the class is Active. Any attempt to set the LocalPort property when the class is Active will generate an error.

The LocalPort property is useful when trying to connect to services that require a trusted port on the client side.

RemoteHost Property (DTLSClient Module)

This property includes the address of the remote host. Domain names are resolved to IP addresses.

Syntax

public var remoteHost: String {
  get {...}
  set {...}
}


@property (nonatomic,readwrite,assign,getter=remoteHost,setter=setRemoteHost:) NSString* remoteHost;

- (NSString*)remoteHost;
- (void)setRemoteHost :(NSString*)newRemoteHost;

Default Value

""

Remarks

The RemoteHost property specifies the IP address (IP number in dotted internet format) or domain name of the remote host.

If RemoteHost is set to 255.255.255.255, the class broadcasts data on the local subnet.

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

If UseConnection is set to True, the RemoteHost must be set before the class is activated (Active is set to True).

RemotePort Property (DTLSClient Module)

This property specifies the User Datagram Protocol (UDP) port in the remote host.

Syntax

public var remotePort: Int32 {
  get {...}
  set {...}
}


@property (nonatomic,readwrite,assign,getter=remotePort,setter=setRemotePort:) int remotePort;

- (int)remotePort;
- (void)setRemotePort :(int)newRemotePort;

Default Value

0

Remarks

The RemotePort is the UDP port on the RemoteHost to send UDP datagrams to.

A valid port number (a value between 1 and 65535) is required.

If UseConnection is set to True, the RemotePort must be set before the class is activated (Active is set to True).

SSLAcceptServerCert Property (DTLSClient Module)

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

Syntax

public var sslAcceptServerCert: Certificate {
  get {...}
  set {...}
}


@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertEffectiveDate) NSString* SSLAcceptServerCertEffectiveDate;

- (NSString*)SSLAcceptServerCertEffectiveDate;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertExpirationDate) NSString* SSLAcceptServerCertExpirationDate;

- (NSString*)SSLAcceptServerCertExpirationDate;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertExtendedKeyUsage) NSString* SSLAcceptServerCertExtendedKeyUsage;

- (NSString*)SSLAcceptServerCertExtendedKeyUsage;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertFingerprint) NSString* SSLAcceptServerCertFingerprint;

- (NSString*)SSLAcceptServerCertFingerprint;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertFingerprintSHA1) NSString* SSLAcceptServerCertFingerprintSHA1;

- (NSString*)SSLAcceptServerCertFingerprintSHA1;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertFingerprintSHA256) NSString* SSLAcceptServerCertFingerprintSHA256;

- (NSString*)SSLAcceptServerCertFingerprintSHA256;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertIssuer) NSString* SSLAcceptServerCertIssuer;

- (NSString*)SSLAcceptServerCertIssuer;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPrivateKey) NSString* SSLAcceptServerCertPrivateKey;

- (NSString*)SSLAcceptServerCertPrivateKey;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPrivateKeyAvailable) BOOL SSLAcceptServerCertPrivateKeyAvailable;

- (BOOL)SSLAcceptServerCertPrivateKeyAvailable;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPrivateKeyContainer) NSString* SSLAcceptServerCertPrivateKeyContainer;

- (NSString*)SSLAcceptServerCertPrivateKeyContainer;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPublicKey) NSString* SSLAcceptServerCertPublicKey;

- (NSString*)SSLAcceptServerCertPublicKey;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPublicKeyAlgorithm) NSString* SSLAcceptServerCertPublicKeyAlgorithm;

- (NSString*)SSLAcceptServerCertPublicKeyAlgorithm;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPublicKeyLength) int SSLAcceptServerCertPublicKeyLength;

- (int)SSLAcceptServerCertPublicKeyLength;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertSerialNumber) NSString* SSLAcceptServerCertSerialNumber;

- (NSString*)SSLAcceptServerCertSerialNumber;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertSignatureAlgorithm) NSString* SSLAcceptServerCertSignatureAlgorithm;

- (NSString*)SSLAcceptServerCertSignatureAlgorithm;

@property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertStore,setter=setSSLAcceptServerCertStore:) NSString* SSLAcceptServerCertStore;

- (NSString*)SSLAcceptServerCertStore;
- (void)setSSLAcceptServerCertStore :(NSString*)newSSLAcceptServerCertStore;

@property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertStoreB,setter=setSSLAcceptServerCertStoreB:) NSData* SSLAcceptServerCertStoreB;

- (NSData*)SSLAcceptServerCertStoreB;
- (void)setSSLAcceptServerCertStoreB :(NSData*)newSSLAcceptServerCertStore;
@property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertStorePassword,setter=setSSLAcceptServerCertStorePassword:) NSString* SSLAcceptServerCertStorePassword;

- (NSString*)SSLAcceptServerCertStorePassword;
- (void)setSSLAcceptServerCertStorePassword :(NSString*)newSSLAcceptServerCertStorePassword;

@property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertStoreType,setter=setSSLAcceptServerCertStoreType:) int SSLAcceptServerCertStoreType;

- (int)SSLAcceptServerCertStoreType;
- (void)setSSLAcceptServerCertStoreType :(int)newSSLAcceptServerCertStoreType;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertSubjectAltNames) NSString* SSLAcceptServerCertSubjectAltNames;

- (NSString*)SSLAcceptServerCertSubjectAltNames;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertThumbprintMD5) NSString* SSLAcceptServerCertThumbprintMD5;

- (NSString*)SSLAcceptServerCertThumbprintMD5;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertThumbprintSHA1) NSString* SSLAcceptServerCertThumbprintSHA1;

- (NSString*)SSLAcceptServerCertThumbprintSHA1;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertThumbprintSHA256) NSString* SSLAcceptServerCertThumbprintSHA256;

- (NSString*)SSLAcceptServerCertThumbprintSHA256;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertUsage) NSString* SSLAcceptServerCertUsage;

- (NSString*)SSLAcceptServerCertUsage;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertUsageFlags) int SSLAcceptServerCertUsageFlags;

- (int)SSLAcceptServerCertUsageFlags;

@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertVersion) NSString* SSLAcceptServerCertVersion;

- (NSString*)SSLAcceptServerCertVersion;

@property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertSubject,setter=setSSLAcceptServerCertSubject:) NSString* SSLAcceptServerCertSubject;

- (NSString*)SSLAcceptServerCertSubject;
- (void)setSSLAcceptServerCertSubject :(NSString*)newSSLAcceptServerCertSubject;

@property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertEncoded,setter=setSSLAcceptServerCertEncoded:) NSString* SSLAcceptServerCertEncoded;

- (NSString*)SSLAcceptServerCertEncoded;
- (void)setSSLAcceptServerCertEncoded :(NSString*)newSSLAcceptServerCertEncoded;

@property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertEncodedB,setter=setSSLAcceptServerCertEncodedB:) NSData* SSLAcceptServerCertEncodedB;

- (NSData*)SSLAcceptServerCertEncodedB;
- (void)setSSLAcceptServerCertEncodedB :(NSData*)newSSLAcceptServerCertEncoded;

Default Value

60

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.

Note: This functionality is provided only for cases in which 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.

SSLCert Property (DTLSClient Module)

The certificate to be used during Secure Sockets Layer (SSL) negotiation.

Syntax

public var sslCert: Certificate {
  get {...}
  set {...}
}


@property (nonatomic,readonly,assign,getter=SSLCertEffectiveDate) NSString* SSLCertEffectiveDate;

- (NSString*)SSLCertEffectiveDate;

@property (nonatomic,readonly,assign,getter=SSLCertExpirationDate) NSString* SSLCertExpirationDate;

- (NSString*)SSLCertExpirationDate;

@property (nonatomic,readonly,assign,getter=SSLCertExtendedKeyUsage) NSString* SSLCertExtendedKeyUsage;

- (NSString*)SSLCertExtendedKeyUsage;

@property (nonatomic,readonly,assign,getter=SSLCertFingerprint) NSString* SSLCertFingerprint;

- (NSString*)SSLCertFingerprint;

@property (nonatomic,readonly,assign,getter=SSLCertFingerprintSHA1) NSString* SSLCertFingerprintSHA1;

- (NSString*)SSLCertFingerprintSHA1;

@property (nonatomic,readonly,assign,getter=SSLCertFingerprintSHA256) NSString* SSLCertFingerprintSHA256;

- (NSString*)SSLCertFingerprintSHA256;

@property (nonatomic,readonly,assign,getter=SSLCertIssuer) NSString* SSLCertIssuer;

- (NSString*)SSLCertIssuer;

@property (nonatomic,readonly,assign,getter=SSLCertPrivateKey) NSString* SSLCertPrivateKey;

- (NSString*)SSLCertPrivateKey;

@property (nonatomic,readonly,assign,getter=SSLCertPrivateKeyAvailable) BOOL SSLCertPrivateKeyAvailable;

- (BOOL)SSLCertPrivateKeyAvailable;

@property (nonatomic,readonly,assign,getter=SSLCertPrivateKeyContainer) NSString* SSLCertPrivateKeyContainer;

- (NSString*)SSLCertPrivateKeyContainer;

@property (nonatomic,readonly,assign,getter=SSLCertPublicKey) NSString* SSLCertPublicKey;

- (NSString*)SSLCertPublicKey;

@property (nonatomic,readonly,assign,getter=SSLCertPublicKeyAlgorithm) NSString* SSLCertPublicKeyAlgorithm;

- (NSString*)SSLCertPublicKeyAlgorithm;

@property (nonatomic,readonly,assign,getter=SSLCertPublicKeyLength) int SSLCertPublicKeyLength;

- (int)SSLCertPublicKeyLength;

@property (nonatomic,readonly,assign,getter=SSLCertSerialNumber) NSString* SSLCertSerialNumber;

- (NSString*)SSLCertSerialNumber;

@property (nonatomic,readonly,assign,getter=SSLCertSignatureAlgorithm) NSString* SSLCertSignatureAlgorithm;

- (NSString*)SSLCertSignatureAlgorithm;

@property (nonatomic,readwrite,assign,getter=SSLCertStore,setter=setSSLCertStore:) NSString* SSLCertStore;

- (NSString*)SSLCertStore;
- (void)setSSLCertStore :(NSString*)newSSLCertStore;

@property (nonatomic,readwrite,assign,getter=SSLCertStoreB,setter=setSSLCertStoreB:) NSData* SSLCertStoreB;

- (NSData*)SSLCertStoreB;
- (void)setSSLCertStoreB :(NSData*)newSSLCertStore;
@property (nonatomic,readwrite,assign,getter=SSLCertStorePassword,setter=setSSLCertStorePassword:) NSString* SSLCertStorePassword;

- (NSString*)SSLCertStorePassword;
- (void)setSSLCertStorePassword :(NSString*)newSSLCertStorePassword;

@property (nonatomic,readwrite,assign,getter=SSLCertStoreType,setter=setSSLCertStoreType:) int SSLCertStoreType;

- (int)SSLCertStoreType;
- (void)setSSLCertStoreType :(int)newSSLCertStoreType;

@property (nonatomic,readonly,assign,getter=SSLCertSubjectAltNames) NSString* SSLCertSubjectAltNames;

- (NSString*)SSLCertSubjectAltNames;

@property (nonatomic,readonly,assign,getter=SSLCertThumbprintMD5) NSString* SSLCertThumbprintMD5;

- (NSString*)SSLCertThumbprintMD5;

@property (nonatomic,readonly,assign,getter=SSLCertThumbprintSHA1) NSString* SSLCertThumbprintSHA1;

- (NSString*)SSLCertThumbprintSHA1;

@property (nonatomic,readonly,assign,getter=SSLCertThumbprintSHA256) NSString* SSLCertThumbprintSHA256;

- (NSString*)SSLCertThumbprintSHA256;

@property (nonatomic,readonly,assign,getter=SSLCertUsage) NSString* SSLCertUsage;

- (NSString*)SSLCertUsage;

@property (nonatomic,readonly,assign,getter=SSLCertUsageFlags) int SSLCertUsageFlags;

- (int)SSLCertUsageFlags;

@property (nonatomic,readonly,assign,getter=SSLCertVersion) NSString* SSLCertVersion;

- (NSString*)SSLCertVersion;

@property (nonatomic,readwrite,assign,getter=SSLCertSubject,setter=setSSLCertSubject:) NSString* SSLCertSubject;

- (NSString*)SSLCertSubject;
- (void)setSSLCertSubject :(NSString*)newSSLCertSubject;

@property (nonatomic,readwrite,assign,getter=SSLCertEncoded,setter=setSSLCertEncoded:) NSString* SSLCertEncoded;

- (NSString*)SSLCertEncoded;
- (void)setSSLCertEncoded :(NSString*)newSSLCertEncoded;

@property (nonatomic,readwrite,assign,getter=SSLCertEncodedB,setter=setSSLCertEncodedB:) NSData* SSLCertEncodedB;

- (NSData*)SSLCertEncodedB;
- (void)setSSLCertEncodedB :(NSData*)newSSLCertEncoded;

Default Value

60

Remarks

This property includes 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.

SSLServerCert Property (DTLSClient Module)

The server certificate for the last established connection.

Syntax

public var sslServerCert: Certificate {
  get {...}
}


@property (nonatomic,readonly,assign,getter=SSLServerCertEffectiveDate) NSString* SSLServerCertEffectiveDate;

- (NSString*)SSLServerCertEffectiveDate;

@property (nonatomic,readonly,assign,getter=SSLServerCertExpirationDate) NSString* SSLServerCertExpirationDate;

- (NSString*)SSLServerCertExpirationDate;

@property (nonatomic,readonly,assign,getter=SSLServerCertExtendedKeyUsage) NSString* SSLServerCertExtendedKeyUsage;

- (NSString*)SSLServerCertExtendedKeyUsage;

@property (nonatomic,readonly,assign,getter=SSLServerCertFingerprint) NSString* SSLServerCertFingerprint;

- (NSString*)SSLServerCertFingerprint;

@property (nonatomic,readonly,assign,getter=SSLServerCertFingerprintSHA1) NSString* SSLServerCertFingerprintSHA1;

- (NSString*)SSLServerCertFingerprintSHA1;

@property (nonatomic,readonly,assign,getter=SSLServerCertFingerprintSHA256) NSString* SSLServerCertFingerprintSHA256;

- (NSString*)SSLServerCertFingerprintSHA256;

@property (nonatomic,readonly,assign,getter=SSLServerCertIssuer) NSString* SSLServerCertIssuer;

- (NSString*)SSLServerCertIssuer;

@property (nonatomic,readonly,assign,getter=SSLServerCertPrivateKey) NSString* SSLServerCertPrivateKey;

- (NSString*)SSLServerCertPrivateKey;

@property (nonatomic,readonly,assign,getter=SSLServerCertPrivateKeyAvailable) BOOL SSLServerCertPrivateKeyAvailable;

- (BOOL)SSLServerCertPrivateKeyAvailable;

@property (nonatomic,readonly,assign,getter=SSLServerCertPrivateKeyContainer) NSString* SSLServerCertPrivateKeyContainer;

- (NSString*)SSLServerCertPrivateKeyContainer;

@property (nonatomic,readonly,assign,getter=SSLServerCertPublicKey) NSString* SSLServerCertPublicKey;

- (NSString*)SSLServerCertPublicKey;

@property (nonatomic,readonly,assign,getter=SSLServerCertPublicKeyAlgorithm) NSString* SSLServerCertPublicKeyAlgorithm;

- (NSString*)SSLServerCertPublicKeyAlgorithm;

@property (nonatomic,readonly,assign,getter=SSLServerCertPublicKeyLength) int SSLServerCertPublicKeyLength;

- (int)SSLServerCertPublicKeyLength;

@property (nonatomic,readonly,assign,getter=SSLServerCertSerialNumber) NSString* SSLServerCertSerialNumber;

- (NSString*)SSLServerCertSerialNumber;

@property (nonatomic,readonly,assign,getter=SSLServerCertSignatureAlgorithm) NSString* SSLServerCertSignatureAlgorithm;

- (NSString*)SSLServerCertSignatureAlgorithm;

@property (nonatomic,readonly,assign,getter=SSLServerCertStore) NSString* SSLServerCertStore;

- (NSString*)SSLServerCertStore;

@property (nonatomic,readonly,assign,getter=SSLServerCertStoreB) NSData* SSLServerCertStoreB;

- (NSData*)SSLServerCertStoreB;
@property (nonatomic,readonly,assign,getter=SSLServerCertStorePassword) NSString* SSLServerCertStorePassword;

- (NSString*)SSLServerCertStorePassword;

@property (nonatomic,readonly,assign,getter=SSLServerCertStoreType) int SSLServerCertStoreType;

- (int)SSLServerCertStoreType;

@property (nonatomic,readonly,assign,getter=SSLServerCertSubjectAltNames) NSString* SSLServerCertSubjectAltNames;

- (NSString*)SSLServerCertSubjectAltNames;

@property (nonatomic,readonly,assign,getter=SSLServerCertThumbprintMD5) NSString* SSLServerCertThumbprintMD5;

- (NSString*)SSLServerCertThumbprintMD5;

@property (nonatomic,readonly,assign,getter=SSLServerCertThumbprintSHA1) NSString* SSLServerCertThumbprintSHA1;

- (NSString*)SSLServerCertThumbprintSHA1;

@property (nonatomic,readonly,assign,getter=SSLServerCertThumbprintSHA256) NSString* SSLServerCertThumbprintSHA256;

- (NSString*)SSLServerCertThumbprintSHA256;

@property (nonatomic,readonly,assign,getter=SSLServerCertUsage) NSString* SSLServerCertUsage;

- (NSString*)SSLServerCertUsage;

@property (nonatomic,readonly,assign,getter=SSLServerCertUsageFlags) int SSLServerCertUsageFlags;

- (int)SSLServerCertUsageFlags;

@property (nonatomic,readonly,assign,getter=SSLServerCertVersion) NSString* SSLServerCertVersion;

- (NSString*)SSLServerCertVersion;

@property (nonatomic,readonly,assign,getter=SSLServerCertSubject) NSString* SSLServerCertSubject;

- (NSString*)SSLServerCertSubject;

@property (nonatomic,readonly,assign,getter=SSLServerCertEncoded) NSString* SSLServerCertEncoded;

- (NSString*)SSLServerCertEncoded;

@property (nonatomic,readonly,assign,getter=SSLServerCertEncodedB) NSData* SSLServerCertEncodedB;

- (NSData*)SSLServerCertEncodedB;

Default Value

60

Remarks

This property contains the server certificate for the last established connection.

SSLServerCert is reset every time a new connection is attempted.

Timeout Property (DTLSClient Module)

This property specifies a timeout when connecting to a server.

Syntax

public var timeout: Int32 {
  get {...}
  set {...}
}


@property (nonatomic,readwrite,assign,getter=timeout,setter=setTimeout:) int timeout;

- (int)timeout;
- (void)setTimeout :(int)newTimeout;

Default Value

60

Remarks

This property specifies a timeout when connecting to a server. When calling Connect, if the connection is not established within Timeout seconds, an error is thrown.

Config Method (DTLSClient Module)

Sets or retrieves a configuration setting.

Syntax

public func config(configurationString: String) throws -> String

- (NSString*)config:(NSString*)configurationString;

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.

Connect Method (DTLSClient Module)

This method connects to a remote host.

Syntax

public func connect() throws -> Void

- (void)connect;

Remarks

This method connects to the remote host specified by RemoteHost and RemotePort. For instance: component.RemoteHost = "MyHostNameOrIP"; component.RemotePort = 7777; component.Connect();

Disconnect Method (DTLSClient Module)

This method disconnects from the remote host.

Syntax

public func disconnect() throws -> Void

- (void)disconnect;

Remarks

This method disconnects from the remote host. Calling this method is equivalent to setting the Connected property to False.

DoEvents Method (DTLSClient Module)

This method processes events from the internal message queue.

Syntax

public func doEvents() throws -> Void

- (void)doEvents;

Remarks

When DoEvents is called, the class processes any available events. If no events are available, it waits for a preset period of time, and then returns.

PauseData Method (DTLSClient Module)

This method pauses data reception.

Syntax

public func pauseData() throws -> Void

- (void)pauseData;

Remarks

This method pauses data reception when called. While data reception is paused, the DataIn event will not fire. Call ProcessData to reenable data reception.

ProcessData Method (DTLSClient Module)

This method reenables data reception after a call to PauseData .

Syntax

public func processData() throws -> Void

- (void)processData;

Remarks

This method reenables data reception after a previous call to PauseData. When PauseData is called, the DataIn event will not fire. To reenable data reception and allow DataIn to fire, call this method.

Note: This method is used only after previously calling PauseData. It does not need to be called to process incoming data by default.

Reset Method (DTLSClient Module)

This method will reset the component.

Syntax

public func reset() throws -> Void

- (void)reset;

Remarks

This method will reset the class's properties to their default values.

SendBytes Method (DTLSClient Module)

This method sends binary data to the remote host.

Syntax

public func sendBytes(data: Data) throws -> Void

- (void)sendBytes:(NSData*)data;

Remarks

This method sends the specified binary data to the remote host. For example:

byte[] dataToSend = new byte[] { 72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33 }; dtlsclient.SendBytes(dataToSend);

To send text, use the SendText method instead.

SendText Method (DTLSClient Module)

This method sends text to the remote host.

Syntax

public func sendText(text: String) throws -> Void

- (void)sendText:(NSString*)text;

Remarks

This method sends the specified text to the remote host. For example:

dtlsclient.onSSLServerAuthentication += (o, e) => { e.Accept = true; }; dtlsclient.RemotePort = 8765; dtlsclient.RemoteHost = "HostNameOrIPAddress"; dtlsclient.Connect(); dtlsclient.SendText("Hello!");

To send binary data, use the SendBytes method instead.

Connected Event (DTLSClient Module)

This event is fired immediately after a connection completes (or fails).

Syntax

func onConnected(address: String, port: Int32, statusCode: Int32, description: String)

- (void)onConnected:(NSString*)address :(int)port :(int)statusCode :(NSString*)description;

Remarks

This event is fired immediately after a connection completes (or fails).

If the connection is made normally, StatusCode is 0 and Description is "OK".

If the connection is broken for any other reason, StatusCode will be non-zero, and the Description parameter will contain a description of this code.

DataIn Event (DTLSClient Module)

This event is fired when data are received.

Syntax

func onDataIn(datagram: Data, sourceAddress: String, sourcePort: Int32)

- (void)onDataIn:(NSData*)datagram :(NSString*)sourceAddress :(int)sourcePort;

Remarks

The DataIn event is fired every time a new datagram is received.

Datagram contains the packet as sent by the remote host.

SourceAddress contains the IP number (Internet address) of the remote host, and SourcePort contains the port from which the packet originated.

Note: Events are not re-entrant. Performing time-consuming operations within this event will prevent it from firing again in a timely manner and may affect overall performance.

Disconnected Event (DTLSClient Module)

This event is fired when a connection is closed.

Syntax

func onDisconnected(address: String, port: Int32, statusCode: Int32, description: String)

- (void)onDisconnected:(NSString*)address :(int)port :(int)statusCode :(NSString*)description;

Remarks

This event is fired when a connection is closed.

If the connection is broken normally, StatusCode is 0 and Description is "OK".

If the connection is broken for any other reason, StatusCode will be non-zero, and the Description parameter will contain a description of this code.

Error Event (DTLSClient Module)

Fired when information is available about errors during data delivery.

Syntax

func onError(errorCode: Int32, description: String)

- (void)onError:(int)errorCode :(NSString*)description;

Remarks

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

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

Log Event (DTLSClient Module)

This event fires once for each log message.

Syntax

func onLog(logLevel: Int32, message: String, logType: String)

- (void)onLog:(int)logLevel :(NSString*)message :(NSString*)logType;

Remarks

This event fires once for each log message generated by the class. The verbosity is controlled by the LogLevel setting.

LogLevel indicates the level of message. Possible values are as follows:

0 (None) No events are logged.
1 (Info - default) Informational events are logged.
2 (Verbose) Detailed data are logged.
3 (Debug) Debug data are logged.

The value 1 (Info) logs basic information, including users logging in and out, files transferred, and directories listed.

The value 2 (Verbose) includes logs from the PITrail event as well as basic information about data transfer channels.

The value 3 (Debug) logs additional debug information, such as extended socket connection and data transfer information.

Message is the log entry.

LogType identifies the type of log entry. Possible values are as follows:

  • "Info"
  • "Error"
  • "Verbose"
  • "Debug"

SSLServerAuthentication Event (DTLSClient Module)

This event is fired after the server presents its certificate to the client.

Syntax

func onSSLServerAuthentication(sourceAddress: String, sourcePort: Int32, certEncoded: Data, certSubject: String, certIssuer: String, status: String, accept: inout Bool)

- (void)onSSLServerAuthentication:(NSString*)sourceAddress :(int)sourcePort :(NSData*)certEncoded :(NSString*)certSubject :(NSString*)certIssuer :(NSString*)status :(int*)accept;

Remarks

This event is fired after the server presents its certificate to the client.

During this event, the client can decide whether or not to continue with the connection process. The Accept parameter is a recommendation on whether to continue or close the connection. This is just a suggestion: application software must use its own logic to determine whether or not to continue.

When Accept is False, Status shows why the verification failed (otherwise, Status contains the string OK). If it is decided to continue, you can override and accept the certificate by setting the Accept parameter to True.

SSLStatus Event (DTLSClient Module)

Fired when secure connection progress messages are available.

Syntax

func onSSLStatus(message: String)

- (void)onSSLStatus:(NSString*)message;

Remarks

The event is fired for informational and logging purposes only. This event tracks 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.

The following fields are available:
  • EffectiveDate
  • ExpirationDate
  • ExtendedKeyUsage
  • Fingerprint
  • FingerprintSHA1
  • FingerprintSHA256
  • Issuer
  • PrivateKey
  • PrivateKeyAvailable
  • PrivateKeyContainer
  • PublicKey
  • PublicKeyAlgorithm
  • PublicKeyLength
  • SerialNumber
  • SignatureAlgorithm
  • Store
  • StorePassword
  • StoreType
  • SubjectAltNames
  • ThumbprintMD5
  • ThumbprintSHA1
  • ThumbprintSHA256
  • Usage
  • UsageFlags
  • Version
  • Subject
  • Encoded

    • Fields

    effectiveDate
    String (read-only)
    Default Value: ""

    The date on which this certificate becomes valid. Before this date, it is not valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date:

    23-Jan-2000 15:00:00.

    expirationDate
    String (read-only)
    Default Value: ""

    The date on which the certificate expires. After this date, the certificate will no longer be valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date:

    23-Jan-2001 15:00:00.

    extendedKeyUsage
    String (read-only)
    Default Value: ""

    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: ""

    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: ""

    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: ""

    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: ""

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

    privateKey
    String (read-only)
    Default Value: ""

    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
    Bool (read-only)
    Default Value: False

    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: ""

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

    publicKey
    String (read-only)
    Default Value: ""

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

    publicKeyAlgorithm
    String (read-only)
    Default Value: ""

    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
    Int32 (read-only)
    Default Value: 0

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

    serialNumber
    String (read-only)
    Default Value: ""

    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 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.

    storeB
    Data
    Default Value: "MY"

    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 designations are 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 cstPFXFile, this property must be set to the name of the file. When the type is cstPFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).

    store
    String
    Default Value: "MY"

    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 designations are 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 cstPFXFile, this property must be set to the name of the file. When the type is cstPFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 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

    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 (PKCS#12) file containing certificates.
    3 (cstPFXBlob)The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) 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 PKCS#7 file containing certificates.
    12 (cstP7BBlob)The certificate store is a string (binary) representing a certificate store in PKCS#7 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 PKCS#11 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 PKCS#11 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.

    subjectAltNames
    String (read-only)
    Default Value: ""

    Comma-separated lists of alternative subject names for the certificate.

    thumbprintMD5
    String (read-only)
    Default Value: ""

    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: ""

    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: ""

    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 (read-only)
    Default Value: ""

    The text description of .

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

    • Digital Signature
    • Non-Repudiation
    • Key Encipherment
    • Data Encipherment
    • Key Agreement
    • Certificate Signing
    • CRL Signing
    • Encipher Only

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

    usageFlags
    Int32 (read-only)
    Default Value: 0

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

    0x80Digital Signature
    0x40Non-Repudiation
    0x20Key Encipherment
    0x10Data Encipherment
    0x08Key Agreement
    0x04Certificate Signing
    0x02CRL Signing
    0x01Encipher Only

    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: ""

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

    subject
    String
    Default Value: ""

    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 as follows:

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

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

    encodedB
    Data
    Default Value: ""

    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.

    encoded
    String
    Default Value: ""

    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.

    Constructors

    public init()

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

    public init(encoded: )

    Parses Encoded as an X.509 public key. 

    public init(storeType: , store: , storePassword: , subject: )

    StoreType identifies the type of certificate store to use. See 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 component will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X.509 certificate's subject Distinguished Name (DN). The Subject parameter can also take an MD5, SHA-1, or SHA-256 thumbprint of the certificate to load in a "Thumbprint=value" format. 

    public init(storeType: , store: , storePassword: , subject: )

    StoreType identifies the type of certificate store to use. See for descriptions of the different certificate stores. Store is a byte array containing the certificate data. StorePassword is the password used to protect the store.

    After the store has been successfully opened, the component will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X.509 certificate's subject Distinguished Name (DN). The Subject parameter can also take an MD5, SHA-1, or SHA-256 thumbprint of the certificate to load in a "Thumbprint=value" format.

    Config Settings (DTLSClient Module)

    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.

    DTLSClient Config Settings

    KeepAliveInterval:   The retry interval, in seconds, to be used when a HeartbeatRequest is sent and no response is received.

    This configuration specifies the retry interval, in seconds, to be used when a HeartbeatRequest message is sent and no response is received. HeartbeatRequest messages are only sent if the Heartbeat Extension is supported by the remote host.

    The class will send a HeartbeatRequest message after a specified period of inactivity, defined by KeepAliveTime. This value specifies the interval at which the class sends successive HeartbeatRequest messages, assuming no response is received from the remote host (HeartbeatResponse). By default, this value is 2 seconds and will only apply if KeepAlive is true.

    KeepAliveMode:   Specifies the Heartbeat (or keep-alive) mode to be used by the class.

    This configuration specifies the Heartbeat (or keep-alive) mode to be used by the class, as defined in RFC 6520. When KeepAlive is true, the following values are applicable:

    1peer_allowed_to_send (default)
    2peer_not_allowed_to_send
    When set to 1 (peer_allowed_to_send), the class can both a) send HeartbeatRequest messages and b) receive and respond to HeartbeatRequest messages.

    When set to 2 (peer_not_allowed_to_send), the class will only be capable of sending HeartbeatRequests.

    Note, if KeepAlive is false, Heartbeat functionality will be disabled. The class will not be capable of sending or handling HeartbeatRequest messages.

    KeepAliveTime:   The inactivity time, in seconds, before a HeartbeatRequest is sent.

    This configuration specifies the inactivity time, in seconds, before sending a HeartbeatRequest message. HeartbeatRequest messages are only sent if the Heartbeat Extension is supported by the remote host.

    If the connection is inactive for the specified time, the class will send a HeartbeatRequest message to the remote host. If no response is received, the class will continue sending Heartbeats every KeepAliveInterval seconds. By default, this value is 60 seconds and will only apply if KeepAlive is true.

    LogLevel:   This configuration controls the level of detail that is logged through the Log event.

    This configuration controls the level of detail that is logged through the Log event. Possible values are as follows:

    0 (None) No events are logged.
    1 (Info - default) Informational events are logged.
    2 (Verbose) Detailed data are logged.
    3 (Debug) Debug data are logged.

    UDP Config Settings

    CaptureIPPacketInfo:   Used to capture the packet information.

    If this configuration setting is set to True, the component will capture the IP packet information.

    The default value for this setting is False.

    Note: This setting is available only in Windows.

    DelayHostResolution:   Whether the hostname is resolved when RemoteHost is set.

    This configuration setting specifies whether a hostname is resolved immediately when RemoteHost is set. If the class will resolve the hostname and the IP address will be present in the RemoteHost property. If , the hostname is not resolved until needed by the component when a method to connect or send data is called. If desired, ResolveRemoteHost may be called to manually resolve the value in RemoteHost at any time.

    The default value is .

    DestinationAddress:   Used to get the destination address from the packet information.

    If CaptureIPPacketInfo is set to True, then this will be populated with the packet's destination address when a packet is received. This information will be accessible in the DataIn event.

    Note: This setting is available only in Windows.

    DontFragment:   Used to set the Don't Fragment flag of outgoing packets.

    When this configuration setting is set to True, packets sent by the class will have the Don't Fragment flag set. The default value is False.

    LocalHost:   The name of the local host through which connections are initiated or accepted.

    The LocalHost setting contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

    In multihomed hosts (machines with more than one IP interface), setting LocalHost to the value of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface.

    If the class is connected, the LocalHost setting shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multihomed hosts (machines with more than one IP interface).

    LocalPort:   The port in the local host where the class binds.

    This configuration setting must be set before a connection is attempted. It instructs the class to bind to a specific port (or communication endpoint) in the local machine.

    Setting this to 0 (default) enables the system to choose a port at random. The chosen port will be shown by LocalPort after the connection is established.

    LocalPort cannot be changed once a connection is made. Any attempt to set this when a connection is active will generate an error.

    This configuration setting is useful when trying to connect to services that require a trusted port on the client side. An example is the remote shell (rsh) service in UNIX systems.

    MaxPacketSize:   The maximum length of the packets that can be received.

    This configuration setting specifies the maximum size of the datagrams that the class will accept without truncation.

    QOSDSCPValue:   Used to specify an arbitrary QOS/DSCP setting (optional).

    To use this configuration setting, UseConnection must be True. This option allows you to specify an arbitrary DiffServ Code Point (DSCP) value between 0 and 63. The default is 0. When set to the default value, the component will not set a DSCP value.

    Note: This setting uses the qWAVE API and is available only on Windows 7, Windows Server 2008 R2, and later.

    QOSTrafficType:   Used to specify QOS/DSCP settings (optional).

    To use this configuration setting, UseConnection must be True. You may specify either the text or integer values: BestEffort (0), Background (1), ExcellentEffort (2), AudioVideo (3), Voice (4), and Control (5).

    Note: This setting uses the qWAVE API and is available only on Windows Vista and Windows Server 2008 or above.

    Note: QOSTrafficType must be set before setting Active to True.

    ShareLocalPort:   If set to True, allows more than one instance of the class to be active on the same local port.

    This option must be set before the class is activated through the Active property or it will have no effect.

    The default value for this setting is False.

    UseConnection:   Determines whether to use a connected socket.

    UseConnection specifies whether or not the class should use a connected socket. The connection is defined as an association in between the local address/port and the remote address/port. As such, this is not a connection in the traditional Transmission Control Protocol (TCP) sense. It means only that the class will send and receive data to and from the specified destination.

    The default value for this setting is False.

    UseIPv6:   Whether or not to use IPv6.

    By default, the component expects an IPv4 address for local and remote host properties and will create an IPv4 socket. To use IPv6 instead, set this to True.

    Socket Config Settings

    AbsoluteTimeout:   Determines whether timeouts are inactivity timeouts or absolute timeouts.

    If AbsoluteTimeout is set to True, any method that does not complete within Timeout seconds will be aborted. By default, AbsoluteTimeout is False, and the timeout is an inactivity timeout.

    Note: This option is not valid for User Datagram Protocol (UDP) ports.

    FirewallData:   Used to send extra data to the firewall.

    When the firewall is a tunneling proxy, use this property to send custom (additional) headers to the firewall (e.g., headers for custom authentication schemes).

    InBufferSize:   The size in bytes of the incoming queue of the socket.

    This is the size of an internal queue in the Transmission Control Protocol (TCP)/IP stack. You can increase or decrease its size depending on the amount of data that you will be receiving. In some cases, increasing the value of the InBufferSize setting can provide significant improvements in performance.

    Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the InBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

    OutBufferSize:   The size in bytes of the outgoing queue of the socket.

    This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be sending. In some cases, increasing the value of the OutBufferSize setting can provide significant improvements in performance.

    Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the OutBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

    SSL Config Settings

    LogSSLPackets:   Controls whether SSL packets are logged.

    This configuration setting controls whether SSL packets should be logged. By default, this configuration setting is False, as it is useful only for debugging purposes.

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

    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.

    SSLCACerts:   A newline separated list of CA certificates to be included when performing an SSL handshake.

    When SSLProvider is set to Internal, this configuration setting specifies one or more CA certificates to be included with the SSLCert property. Some servers or clients require the entire chain, including CA certificates, to be presented when performing SSL authentication. The value of this configuration setting is a newline-separated (CR/LF) list of certificates. For instance: 

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

    SSLCheckCRL:   Whether to check the Certificate Revocation List for the server certificate.

    This configuration setting specifies whether the class will check the Certificate Revocation List (CRL) specified by the server certificate. If set to 1 or 2, the class will first obtain the list of CRL URLs from the server certificate's CRL distribution points extension. The class will then make HTTP requests to each CRL endpoint to check the validity of the server's certificate. If the certificate has been revoked or any other issues are found during validation the class .

    When set to 0 (default), the CRL check will not be performed by the class. When set to 1, it will attempt to perform the CRL check, but it will continue without an error if the server's certificate does not support CRL. When set to 2, it will perform the CRL check and will throw an error if CRL is not supported.

    This configuration setting is supported only in the Java, C#, and C++ editions. In the C++ edition, it is supported only on Windows operating systems.

    SSLCheckOCSP:   Whether to use OCSP to check the status of the server certificate.

    This configuration setting specifies whether the class will use OCSP to check the validity of the server certificate. If set to 1 or 2, the class will first obtain the Online Certificate Status Protocol (OCSP) URL from the server certificate's OCSP extension. The class will then locate the issuing certificate and make an HTTP request to the OCSP endpoint to check the validity of the server's certificate. If the certificate has been revoked or any other issues are found during validation, the class .

    When set to 0 (default), the class will not perform an OCSP check. When set to 1, it will attempt to perform the OCSP check, but it will continue without an error if the server's certificate does not support OCSP. When set to 2, it will perform the OCSP check and will throw an error if OCSP is not supported.

    This configuration setting is supported only in the Java, C#, and C++ editions. In the C++ edition, it is supported only on Windows operating systems.

    SSLCipherStrength:   The minimum cipher strength used for bulk encryption.

    This minimum cipher strength is 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.

    Note: This configuration 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 configuration 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 configuration setting.

    SSLClientCACerts:   A newline separated list of CA certificates to use during SSL client certificate validation.

    This configuration setting is only applicable to server components (e.g., TCPServer) see SSLServerCACerts for client components (e.g., TCPClient). This setting can be used to optionally specify one or more CA certificates to be used when verifying the client certificate that is presented by the client during the SSL handshake when SSLAuthenticateClients is enabled. When verifying the client's certificate, the certificates trusted by the system will be used as part of the verification process. If the client'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 configuration setting should be set only if the client's CA certificates are not already trusted on the system and cannot be installed to the trusted system store.

    The value of this configuration setting is a newline-separated (CR/LF) list of certificates. For instance: 

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

    SSLEnabledCipherSuites:   Specifies the cipher suites to be used during TLS negotiation.

    This configuration is used to specify the cipher suites to be used during TLS 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. For example:

    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_ECDH_RSA_WITH_AES_128_CBC_SHA");

    Possible cipher suites include the following:

    • 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_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

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

    This configuration setting is used to enable or disable the supported security protocols.

    The default value is 3072. To specify a combination of enabled protocol versions set this config to the binary OR of one or more of the following values:

    TLS1.23072 (Hex C00) (Default - Client and Server)

    SSLEnableRenegotiation:   Whether the renegotiation_info SSL extension is supported.

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

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

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

    This configuration 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 traffic for debugging purposes. When writing to this file, the class will only append, it will not overwrite previous values.

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

    SSLNegotiatedCipher:   Returns the negotiated cipher suite.

    This configuration setting returns the cipher suite negotiated during the SSL handshake.

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

    SSLNegotiatedCipherStrength:   Returns the negotiated cipher suite strength.

    This configuration setting returns the strength of the cipher suite negotiated during the SSL handshake.

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

    SSLNegotiatedCipherSuite:   Returns the negotiated cipher suite.

    This configuration setting 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 configuration setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipherSuite[connId]");

    SSLNegotiatedKeyExchange:   Returns the negotiated key exchange algorithm.

    This configuration setting returns the key exchange algorithm negotiated during the SSL handshake.

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

    SSLNegotiatedKeyExchangeStrength:   Returns the negotiated key exchange algorithm strength.

    This configuration setting returns the strength of the key exchange algorithm negotiated during the SSL handshake.

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

    SSLNegotiatedVersion:   Returns the negotiated protocol version.

    This configuration setting returns the protocol version negotiated during the SSL handshake.

    Note: For server components (e.g., TCPServer), this is a per-connection configuration 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 ORed 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 non-matching server name).

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

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

    This configuration setting is only used by client components (e.g., TCPClient) see SSLClientCACerts for server components (e.g., TCPServer). This configuration setting can be used to optionally specify one or more CA certificates to be used when connecting to the server and 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 configuration setting should be set only 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 configuration setting is a newline-separated (CR/LF) list of certificates. For instance: 

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

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

    This configuration 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 configuration 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 configuration 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.

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

    TLS12SupportedGroups:   The supported groups for ECC.

    This configuration 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)

    Base Config Settings

    BuildInfo:   Information about the product's build.

    When queried, this setting will return a string containing information about the product's build.

    CodePage:   The system code page used for Unicode to Multibyte translations.

    The default code page is Unicode UTF-8 (65001).

    The following is a list of valid code page identifiers:

    IdentifierName
    037IBM EBCDIC - U.S./Canada
    437OEM - United States
    500IBM EBCDIC - International
    708Arabic - ASMO 708
    709Arabic - ASMO 449+, BCON V4
    710Arabic - Transparent Arabic
    720Arabic - Transparent ASMO
    737OEM - Greek (formerly 437G)
    775OEM - Baltic
    850OEM - Multilingual Latin I
    852OEM - Latin II
    855OEM - Cyrillic (primarily Russian)
    857OEM - Turkish
    858OEM - Multilingual Latin I + Euro symbol
    860OEM - Portuguese
    861OEM - Icelandic
    862OEM - Hebrew
    863OEM - Canadian-French
    864OEM - Arabic
    865OEM - Nordic
    866OEM - Russian
    869OEM - Modern Greek
    870IBM EBCDIC - Multilingual/ROECE (Latin-2)
    874ANSI/OEM - Thai (same as 28605, ISO 8859-15)
    875IBM EBCDIC - Modern Greek
    932ANSI/OEM - Japanese, Shift-JIS
    936ANSI/OEM - Simplified Chinese (PRC, Singapore)
    949ANSI/OEM - Korean (Unified Hangul Code)
    950ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC)
    1026IBM EBCDIC - Turkish (Latin-5)
    1047IBM EBCDIC - Latin 1/Open System
    1140IBM EBCDIC - U.S./Canada (037 + Euro symbol)
    1141IBM EBCDIC - Germany (20273 + Euro symbol)
    1142IBM EBCDIC - Denmark/Norway (20277 + Euro symbol)
    1143IBM EBCDIC - Finland/Sweden (20278 + Euro symbol)
    1144IBM EBCDIC - Italy (20280 + Euro symbol)
    1145IBM EBCDIC - Latin America/Spain (20284 + Euro symbol)
    1146IBM EBCDIC - United Kingdom (20285 + Euro symbol)
    1147IBM EBCDIC - France (20297 + Euro symbol)
    1148IBM EBCDIC - International (500 + Euro symbol)
    1149IBM EBCDIC - Icelandic (20871 + Euro symbol)
    1200Unicode UCS-2 Little-Endian (BMP of ISO 10646)
    1201Unicode UCS-2 Big-Endian
    1250ANSI - Central European
    1251ANSI - Cyrillic
    1252ANSI - Latin I
    1253ANSI - Greek
    1254ANSI - Turkish
    1255ANSI - Hebrew
    1256ANSI - Arabic
    1257ANSI - Baltic
    1258ANSI/OEM - Vietnamese
    1361Korean (Johab)
    10000MAC - Roman
    10001MAC - Japanese
    10002MAC - Traditional Chinese (Big5)
    10003MAC - Korean
    10004MAC - Arabic
    10005MAC - Hebrew
    10006MAC - Greek I
    10007MAC - Cyrillic
    10008MAC - Simplified Chinese (GB 2312)
    10010MAC - Romania
    10017MAC - Ukraine
    10021MAC - Thai
    10029MAC - Latin II
    10079MAC - Icelandic
    10081MAC - Turkish
    10082MAC - Croatia
    12000Unicode UCS-4 Little-Endian
    12001Unicode UCS-4 Big-Endian
    20000CNS - Taiwan
    20001TCA - Taiwan
    20002Eten - Taiwan
    20003IBM5550 - Taiwan
    20004TeleText - Taiwan
    20005Wang - Taiwan
    20105IA5 IRV International Alphabet No. 5 (7-bit)
    20106IA5 German (7-bit)
    20107IA5 Swedish (7-bit)
    20108IA5 Norwegian (7-bit)
    20127US-ASCII (7-bit)
    20261T.61
    20269ISO 6937 Non-Spacing Accent
    20273IBM EBCDIC - Germany
    20277IBM EBCDIC - Denmark/Norway
    20278IBM EBCDIC - Finland/Sweden
    20280IBM EBCDIC - Italy
    20284IBM EBCDIC - Latin America/Spain
    20285IBM EBCDIC - United Kingdom
    20290IBM EBCDIC - Japanese Katakana Extended
    20297IBM EBCDIC - France
    20420IBM EBCDIC - Arabic
    20423IBM EBCDIC - Greek
    20424IBM EBCDIC - Hebrew
    20833IBM EBCDIC - Korean Extended
    20838IBM EBCDIC - Thai
    20866Russian - KOI8-R
    20871IBM EBCDIC - Icelandic
    20880IBM EBCDIC - Cyrillic (Russian)
    20905IBM EBCDIC - Turkish
    20924IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol)
    20932JIS X 0208-1990 & 0121-1990
    20936Simplified Chinese (GB2312)
    21025IBM EBCDIC - Cyrillic (Serbian, Bulgarian)
    21027Extended Alpha Lowercase
    21866Ukrainian (KOI8-U)
    28591ISO 8859-1 Latin I
    28592ISO 8859-2 Central Europe
    28593ISO 8859-3 Latin 3
    28594ISO 8859-4 Baltic
    28595ISO 8859-5 Cyrillic
    28596ISO 8859-6 Arabic
    28597ISO 8859-7 Greek
    28598ISO 8859-8 Hebrew
    28599ISO 8859-9 Latin 5
    28605ISO 8859-15 Latin 9
    29001Europa 3
    38598ISO 8859-8 Hebrew
    50220ISO 2022 Japanese with no halfwidth Katakana
    50221ISO 2022 Japanese with halfwidth Katakana
    50222ISO 2022 Japanese JIS X 0201-1989
    50225ISO 2022 Korean
    50227ISO 2022 Simplified Chinese
    50229ISO 2022 Traditional Chinese
    50930Japanese (Katakana) Extended
    50931US/Canada and Japanese
    50933Korean Extended and Korean
    50935Simplified Chinese Extended and Simplified Chinese
    50936Simplified Chinese
    50937US/Canada and Traditional Chinese
    50939Japanese (Latin) Extended and Japanese
    51932EUC - Japanese
    51936EUC - Simplified Chinese
    51949EUC - Korean
    51950EUC - Traditional Chinese
    52936HZ-GB2312 Simplified Chinese
    54936Windows XP: GB18030 Simplified Chinese (4 Byte)
    57002ISCII Devanagari
    57003ISCII Bengali
    57004ISCII Tamil
    57005ISCII Telugu
    57006ISCII Assamese
    57007ISCII Oriya
    57008ISCII Kannada
    57009ISCII Malayalam
    57010ISCII Gujarati
    57011ISCII Punjabi
    65000Unicode UTF-7
    65001Unicode UTF-8
    The following is a list of valid code page identifiers for Mac OS only:
    IdentifierName
    1ASCII
    2NEXTSTEP
    3JapaneseEUC
    4UTF8
    5ISOLatin1
    6Symbol
    7NonLossyASCII
    8ShiftJIS
    9ISOLatin2
    10Unicode
    11WindowsCP1251
    12WindowsCP1252
    13WindowsCP1253
    14WindowsCP1254
    15WindowsCP1250
    21ISO2022JP
    30MacOSRoman
    10UTF16String
    0x90000100UTF16BigEndian
    0x94000100UTF16LittleEndian
    0x8c000100UTF32String
    0x98000100UTF32BigEndian
    0x9c000100UTF32LittleEndian
    65536Proprietary

    LicenseInfo:   Information about the current license.

    When queried, this setting will return a string containing information about the license this instance of a class is using. It will return the following information:

    • Product: The product the license is for.
    • Product Key: The key the license was generated from.
    • License Source: Where the license was found (e.g., RuntimeLicense, License File).
    • License Type: The type of license installed (e.g., Royalty Free, Single Server).
    • Last Valid Build: The last valid build number for which the license will work.
    MaskSensitiveData:   Whether sensitive data is masked in log messages.

    In certain circumstances it may be beneficial to mask sensitive data, like passwords, in log messages. Set this to to mask sensitive data. The default is .

    This setting only works on these classes: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.

    UseInternalSecurityAPI:   Whether or not to use the system security libraries or an internal implementation.

    When set to , the class will use the system security libraries by default to perform cryptographic functions where applicable.

    Setting this configuration setting to tells the class to use the internal implementation instead of using the system security libraries.

    This setting is set to by default on all platforms.

    Trappable Errors (DTLSClient Module)

    DTLSClient Errors

    400   Invalid datagram received. See the error description for further details.
    401   Invalid DTLS flow. See the error description for further details.
    402   Not supported. See the error description for further details.
    403   DTLS handshake error. See the error description for further details.
    404   Invalid certificate provided. See the error description for further details.
    405   Fatal alert. See the error description for further details.