X509AsymmetricSecurityKey.GetHashAlgorithmForSignature(String) Method
Definition
Important
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Gets a cryptographic algorithm that generates a hash for a digital signature.
public:
override System::Security::Cryptography::HashAlgorithm ^ GetHashAlgorithmForSignature(System::String ^ algorithm);
public override System.Security.Cryptography.HashAlgorithm GetHashAlgorithmForSignature (string algorithm);
override this.GetHashAlgorithmForSignature : string -> System.Security.Cryptography.HashAlgorithm
Public Overrides Function GetHashAlgorithmForSignature (algorithm As String) As HashAlgorithm
Parameters
- algorithm
- String
The hash algorithm.
Returns
A HashAlgorithm that generates hashes for digital signatures.
Exceptions
algorithm
is not supported. The supported algorithms are XmlDsigDSAUrl, XmlDsigRSASHA1Url, and RsaSha256Signature.
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.
Applies to
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