DSASignatureFormatter.SetHashAlgorithm(String) 메서드

정의

네임스페이스:
System.Security.Cryptography
어셈블리:
mscorlib.dll
어셈블리:
netstandard.dll

디지털 서명 알고리즘(DSA) 서명 포맷터에 대한 해시 알고리즘을 지정합니다.

public:
 override void SetHashAlgorithm(System::String ^ strName);
public override void SetHashAlgorithm(string strName);
override this.SetHashAlgorithm : string -> unit
Public Overrides Sub SetHashAlgorithm (strName As String)

매개 변수

strName
String

서명 포맷터에 사용할 해시 알고리즘의 이름입니다.

예외

CryptographicUnexpectedOperationException

매개 변수가 strName 해시 알고리즘에 SHA1 매핑되지 않습니다.

예제

using System;
using System.Security.Cryptography;

class DSASample
{
        
    static void Main()
    {
        try
        {
            //Create a new instance of DSA.
            DSA DSA = DSA.Create();

            //The hash to sign.
            byte[] Hash = {59,4,248,102,77,97,142,201,210,12,224,93,25,41,100,197,213,134,130,135};

            //Create an DSASignatureFormatter object and pass it the 
            //DSA instance to transfer the key information.
            DSASignatureFormatter DSAFormatter = new DSASignatureFormatter(DSA);

            //Set the hash algorithm to SHA1.
            DSAFormatter.SetHashAlgorithm("SHA1");

            //Create a signature for HashValue and return it.
            byte[] SignedHash = DSAFormatter.CreateSignature(Hash);
        }
        catch(CryptographicException e)
        {
            Console.WriteLine(e.Message);
        }
    }
}

Imports System.Security.Cryptography

 _

Class DSASample


    Shared Sub Main()
        Try
            'Create a new instance of DSA.
            Dim DSA As DSA = DSA.Create()

            'The hash to sign.
            Dim Hash As Byte() = {59, 4, 248, 102, 77, 97, 142, 201, 210, 12, 224, 93, 25, 41, 100, 197, 213, 134, 130, 135}

            'Create an DSASignatureFormatter object and pass it the 
            'DSA instance to transfer the key information.
            Dim DSAFormatter As New DSASignatureFormatter(DSA)

            'Set the hash algorithm to SHA1.
            DSAFormatter.SetHashAlgorithm("SHA1")

            'Create a signature for HashValue and return it.
            Dim SignedHash As Byte() = DSAFormatter.CreateSignature(Hash)

        Catch e As CryptographicException
            Console.WriteLine(e.Message)
        End Try
    End Sub
End Class

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