NTLM Control

Properties   Methods   Events   Config Settings   Errors  

The NTLM control provides a simple API to create the required tokens for NTLM authentication.

Syntax

NTLM

Remarks

This control provides a simple API to create the required tokens for NTLM authentication.

The NTLM authentication process is a challenge-response scheme which consists of three messages. These three messages are the negotiation, challenge, and authentication. This control implements only the client side of NTLM and will create the negotiation and authentication tokens. The control does not transmit any data, it simply prepares the tokens for use in other transport protocols such as HTTP. The following steps describe how the component is used.

Create the Negotiate Token

To begin first set User and Password. The user value may contain domain information in the format "DOMAIN\User" or "user@domain". Next call CreateNegotiateToken to populate NegotiateToken. This token may then be transmitted separately. For instance in HTTP this would be sent in a request within the Authorization header: HTTPHeader = "Authorization: NTLM " + NegotiateToken

Create the Auth Token

After sending the negotiate token over the chosen transport protocol, the server will respond with a challenge token. Set ChallengeToken to the token received from the server. For instance, in HTTP the server will respond with the challenge token in the WWW-Authenticate header:

WWW-Authenticate: NTLM <ChallengeToken>

After setting User, Password, and ChallengeToken call CreateAuthToken. This will populate AuthToken with the created token. This token may then be transmitted separately. For instance in HTTP this would be sent in the request within the Authorization header: HTTPHeader = "Authorization: NTLM " + AuthToken

Note: If the server requires EPA (Extended Protection for Authentication), then SSLServerCert must be set to the server's public certificate before calling CreateAuthToken.

Property List

---

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

Method List

---

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

Event List

---

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

Config Settings

---

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

AuthToken Property (NTLM Control)

The authentication token.

Syntax

ntlmcontrol.AuthToken

Default Value

""

Remarks

This property holds the created authentication token. This property is populated after calling CreateAuthToken.

Note: By default this value is Base64 encoded. Set EncodeToken to False before calling CreateAuthToken to obtain the raw value.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .AuthTokenB.

This property is read-only.

Data Type

Binary String

ChallengeToken Property (NTLM Control)

The challenge token.

Syntax

ntlmcontrol.ChallengeToken[=string]

Default Value

""

Remarks

This property specifies the challenge token. This must be set to the challenge token received from the server before calling CreateAuthToken.

Note: By default the control expects the token to be Base64 encoded. To provide a raw value to this property first set DecodeToken to False.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .ChallengeTokenB.

Data Type

Binary String

NegotiateToken Property (NTLM Control)

The negotiate token.

Syntax

ntlmcontrol.NegotiateToken

Default Value

""

Remarks

This property is populated after calling CreateNegotiateToken. By default the value is Base64 encoded. To obtain the raw value set EncodeToken to False before calling CreateNegotiateToken.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .NegotiateTokenB.

This property is read-only.

Data Type

Binary String

NTLMVersion Property (NTLM Control)

The NTLM version.

Syntax

ntlmcontrol.NTLMVersion[=integer]

Possible Values

ntNTLMv1(1), 
ntNTLMv2(2)

Default Value

1

Remarks

This property specifies the NTLM version to use. Possible values are:

• 1 (ntNTLMv1 - default)
• 2 (ntNTLMv2)

Note: If the server requires EPA (Extended Protection for Authentication) this property must be set to 2 (ntNTLMv2).

Data Type

Integer

Password Property (NTLM Control)

The user's password.

Syntax

ntlmcontrol.Password[=string]

Default Value

""

Remarks

This property specifies the user's password.

Data Type

String

SSLServerCertEffectiveDate Property (NTLM Control)

The date on which this certificate becomes valid.

Syntax

ntlmcontrol.SSLServerCertEffectiveDate

Default Value

""

Remarks

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.

This property is read-only.

Data Type

String

SSLServerCertExpirationDate Property (NTLM Control)

The date on which the certificate expires.

Syntax

ntlmcontrol.SSLServerCertExpirationDate

Default Value

""

Remarks

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.

This property is read-only.

Data Type

String

SSLServerCertExtendedKeyUsage Property (NTLM Control)

A comma-delimited list of extended key usage identifiers.

Syntax

ntlmcontrol.SSLServerCertExtendedKeyUsage

Default Value

""

Remarks

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

This property is read-only.

Data Type

String

SSLServerCertFingerprint Property (NTLM Control)

The hex-encoded, 16-byte MD5 fingerprint of the certificate.

Syntax

ntlmcontrol.SSLServerCertFingerprint

Default Value

""

Remarks

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

This property is read-only.

Data Type

String

SSLServerCertFingerprintSHA1 Property (NTLM Control)

The hex-encoded, 20-byte SHA-1 fingerprint of the certificate.

Syntax

ntlmcontrol.SSLServerCertFingerprintSHA1

Default Value

""

Remarks

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

This property is read-only.

Data Type

String

SSLServerCertFingerprintSHA256 Property (NTLM Control)

The hex-encoded, 32-byte SHA-256 fingerprint of the certificate.

Syntax

ntlmcontrol.SSLServerCertFingerprintSHA256

Default Value

""

Remarks

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

This property is read-only.

Data Type

String

SSLServerCertIssuer Property (NTLM Control)

The issuer of the certificate.

Syntax

ntlmcontrol.SSLServerCertIssuer

Default Value

""

Remarks

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

This property is read-only.

Data Type

String

SSLServerCertPrivateKey Property (NTLM Control)

The private key of the certificate (if available).

Syntax

ntlmcontrol.SSLServerCertPrivateKey

Default Value

""

Remarks

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

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

This property is read-only.

Data Type

String

SSLServerCertPrivateKeyAvailable Property (NTLM Control)

Whether a PrivateKey is available for the selected certificate.

Syntax

ntlmcontrol.SSLServerCertPrivateKeyAvailable

Default Value

False

Remarks

Whether a SSLServerCertPrivateKey is available for the selected certificate. If SSLServerCertPrivateKeyAvailable is True, the certificate may be used for authentication purposes (e.g., server authentication).

This property is read-only.

Data Type

Boolean

SSLServerCertPrivateKeyContainer Property (NTLM Control)

The name of the PrivateKey container for the certificate (if available).

Syntax

ntlmcontrol.SSLServerCertPrivateKeyContainer

Default Value

""

Remarks

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

This property is read-only.

Data Type

String

SSLServerCertPublicKey Property (NTLM Control)

The public key of the certificate.

Syntax

ntlmcontrol.SSLServerCertPublicKey

Default Value

""

Remarks

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

This property is read-only.

Data Type

String

SSLServerCertPublicKeyAlgorithm Property (NTLM Control)

The textual description of the certificate's public key algorithm.

Syntax

ntlmcontrol.SSLServerCertPublicKeyAlgorithm

Default Value

""

Remarks

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.

This property is read-only.

Data Type

String

SSLServerCertPublicKeyLength Property (NTLM Control)

The length of the certificate's public key (in bits).

Syntax

ntlmcontrol.SSLServerCertPublicKeyLength

Default Value

0

Remarks

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

This property is read-only.

Data Type

Integer

SSLServerCertSerialNumber Property (NTLM Control)

The serial number of the certificate encoded as a string.

Syntax

ntlmcontrol.SSLServerCertSerialNumber

Default Value

""

Remarks

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.

This property is read-only.

Data Type

String

SSLServerCertSignatureAlgorithm Property (NTLM Control)

The text description of the certificate's signature algorithm.

Syntax

ntlmcontrol.SSLServerCertSignatureAlgorithm

Default Value

""

Remarks

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.

This property is read-only.

Data Type

String

SSLServerCertStore Property (NTLM Control)

The name of the certificate store for the client certificate.

Syntax

ntlmcontrol.SSLServerCertStore[=string]

Default Value

"MY"

Remarks

The name of the certificate store for the client certificate.

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

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

Designations of certificate stores are platform dependent.

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

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).

To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLServerCertStoreB.

Data Type

Binary String

SSLServerCertStorePassword Property (NTLM Control)

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

Syntax

ntlmcontrol.SSLServerCertStorePassword[=string]

Default Value

""

Remarks

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

Data Type

String

SSLServerCertStoreType Property (NTLM Control)

The type of certificate store for this certificate.

Syntax

ntlmcontrol.SSLServerCertStoreType[=integer]

Possible Values

cstUser(0), 
cstMachine(1), 
cstPFXFile(2), 
cstPFXBlob(3), 
cstJKSFile(4), 
cstJKSBlob(5), 
cstPEMKeyFile(6), 
cstPEMKeyBlob(7), 
cstPublicKeyFile(8), 
cstPublicKeyBlob(9), 
cstSSHPublicKeyBlob(10), 
cstP7BFile(11), 
cstP7BBlob(12), 
cstSSHPublicKeyFile(13), 
cstPPKFile(14), 
cstPPKBlob(15), 
cstXMLFile(16), 
cstXMLBlob(17), 
cstJWKFile(18), 
cstJWKBlob(19), 
cstSecurityKey(20), 
cstBCFKSFile(21), 
cstBCFKSBlob(22), 
cstPKCS11(23), 
cstAuto(99)

Default Value

0

Remarks

The type of certificate store for this certificate.

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

Data Type

Integer

SSLServerCertSubjectAltNames Property (NTLM Control)

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

Syntax

ntlmcontrol.SSLServerCertSubjectAltNames

Default Value

""

Remarks

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

This property is read-only.

Data Type

String

SSLServerCertThumbprintMD5 Property (NTLM Control)

The MD5 hash of the certificate.

Syntax

ntlmcontrol.SSLServerCertThumbprintMD5

Default Value

""

Remarks

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.

This property is read-only.

Data Type

String

SSLServerCertThumbprintSHA1 Property (NTLM Control)

The SHA-1 hash of the certificate.

Syntax

ntlmcontrol.SSLServerCertThumbprintSHA1

Default Value

""

Remarks

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.

This property is read-only.

Data Type

String

SSLServerCertThumbprintSHA256 Property (NTLM Control)

The SHA-256 hash of the certificate.

Syntax

ntlmcontrol.SSLServerCertThumbprintSHA256

Default Value

""

Remarks

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.

This property is read-only.

Data Type

String

SSLServerCertUsage Property (NTLM Control)

The text description of UsageFlags .

Syntax

ntlmcontrol.SSLServerCertUsage

Default Value

""

Remarks

The text description of SSLServerCertUsageFlags.

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.

This property is read-only.

Data Type

String

SSLServerCertUsageFlags Property (NTLM Control)

The flags that show intended use for the certificate.

Syntax

ntlmcontrol.SSLServerCertUsageFlags

Default Value

0

Remarks

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

Please see the SSLServerCertUsage property for a text representation of SSLServerCertUsageFlags.

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

This property is read-only.

Data Type

Integer

SSLServerCertVersion Property (NTLM Control)

The certificate's version number.

Syntax

ntlmcontrol.SSLServerCertVersion

Default Value

""

Remarks

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

This property is read-only.

Data Type

String

SSLServerCertSubject Property (NTLM Control)

The subject of the certificate used for client authentication.

Syntax

ntlmcontrol.SSLServerCertSubject[=string]

Default Value

""

Remarks

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:

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

Data Type

String

SSLServerCertEncoded Property (NTLM Control)

The certificate (PEM/Base64 encoded).

Syntax

ntlmcontrol.SSLServerCertEncoded[=string]

Default Value

""

Remarks

The certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The SSLServerCertStore and SSLServerCertSubject properties also may be used to specify a certificate.

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

To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLServerCertEncodedB.

This property is not available at design time.

Data Type

Binary String

User Property (NTLM Control)

The user.

Syntax

ntlmcontrol.User[=string]

Default Value

""

Remarks

This property specifies the name and realm/domain of the user. The value specified must be in one of the following formats:

• user
• domain/user

Data Type

String

Config Method (NTLM Control)

Sets or retrieves a configuration setting.

Syntax

ntlmcontrol.Config ConfigurationString

Remarks

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

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the control, 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.

CreateAuthToken Method (NTLM Control)

Creates the authentication token.

Syntax

ntlmcontrol.CreateAuthToken 

Remarks

This method creates the authentication token. After calling this method the AuthToken property will be populated. The following properties are applicable when calling this method:

• User (required)
• Password (required)
• ChallengeToken (required)
• SSLServerCert
• NTLMVersion

Note: SSLServerCert must be set to the server's public certificate if the server requires EPA (Extended Protection for Authentication).

CreateNegotiateToken Method (NTLM Control)

Creates the negotiate token.

Syntax

ntlmcontrol.CreateNegotiateToken 

Remarks

This method creates the negotiate token. After calling this method the NegotiateToken property is populated. The following properties are applicable when calling this method:

• User (required)
• Password (required)
• NTLMVersion

Reset Method (NTLM Control)

Resets the control.

Syntax

ntlmcontrol.Reset 

Remarks

When called, the control will reset all of its properties to their default values.

Error Event (NTLM Control)

Fired when information is available about errors during data delivery.

Syntax

Sub ntlmcontrol_Error(ErrorCode As Integer, Description As String)

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the control fails with an error.

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.

Config Settings (NTLM Control)

The control 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 control, access to these internal properties is provided through the Config method.

NTLM Config Settings

Base Config Settings

Trappable Errors (NTLM Control)

NTLM Errors