X509AsymmetricSecurityKey.GetSignatureFormatter(String) Method
Definition
Important
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Gets the formatter algorithm for the digital signature.
public:
override System::Security::Cryptography::AsymmetricSignatureFormatter ^ GetSignatureFormatter(System::String ^ algorithm);public override System.Security.Cryptography.AsymmetricSignatureFormatter GetSignatureFormatter (string algorithm);override this.GetSignatureFormatter : string -> System.Security.Cryptography.AsymmetricSignatureFormatterPublic Overrides Function GetSignatureFormatter (algorithm As String) As AsymmetricSignatureFormatterParameters
- algorithm
- String
The formatter algorithm for the digital signature to get an instance of.
Returns
An AsymmetricSignatureDeformatter that represents the formatter algorithm for the digital signature.
Exceptions
The X.509 certificate specified in the constructor does not have a private key.
-or-
algorithm is XmlDsigDSAUrl and the private key for the X.509 certificate specified in the constructor is not of type DSA.
-or-
algorithm is XmlDsigRSASHA1Url or RsaSha256Signature and the private key for the X.509 certificate specified in the constructor is not of type RSA.
-or-
algorithm is not supported. The supported algorithms are XmlDsigDSAUrl,
Remarks
Use the XmlDsigDSAUrl, XmlDsigRSASHA1Url or RsaSha256Signature fields to specify the algorithm parameter.
Due to collision problems with SHA1, Microsoft recommends a security model based on SHA256 or better.
