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DSASignatureDeformatter Class
Visual Studio 2008
Verifies a Digital Signature Algorithm (DSA) PKCS#1 v1.5 signature.
Assembly: mscorlib (in mscorlib.dll)
Imports System Imports System.Security.Cryptography _ Class DSASample Shared Sub Main() Try 'Create a new instance of DSACryptoServiceProvider. Dim DSA As New DSACryptoServiceProvider() '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 'DSACryptoServiceProvider 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) 'Create an DSASignatureDeformatter object and pass it the 'DSACryptoServiceProvider to transfer the key information. Dim DSADeformatter As New DSASignatureDeformatter(DSA) 'Verify the hash and display the results to the console. If DSADeformatter.VerifySignature(Hash, SignedHash) Then Console.WriteLine("The signature was verified.") Else Console.WriteLine("The signature was not verified.") End If Catch e As CryptographicException Console.WriteLine(e.Message) End Try End Sub End Class
System.Object
System.Security.Cryptography.AsymmetricSignatureDeformatter
System.Security.Cryptography.DSASignatureDeformatter
System.Security.Cryptography.AsymmetricSignatureDeformatter
System.Security.Cryptography.DSASignatureDeformatter
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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