CryptoSys PKI Toolkit Manual

Cms.GetSigHashAlgorithm Method (String, String)

Finds ID of message digest hash algorithm used to make signature.

Syntax

[C#]
public static int GetSigHashAlgorithm(
	string inputFile,
	string certFile
)
[VB.NET]
Public Shared Function GetSigHashAlgorithm ( _
	inputFile As String, _
	certFile As String _
) As Integer

Parameters

inputFile
file containing CMS signed-data object
certFile
an (optional) X.509 certificate file to be used to identify the signer

Return Value

0=SHA-1, 1=MD5, 2=MD2, 3=SHA256, 4=SHA-384, 5=SHA-512, 6=SHA-224; or a negative error code

Remarks

This method returns an integer ID number. Alternatively, use Cms.QuerySigData(inputFile, "digestAlgorithm") to get the name directly as a string, e.g. "sha1". See QuerySigData(String, String)

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