RSAPKCS1SignatureFormatter Klas

Definitie

public ref class RSAPKCS1SignatureFormatter : System::Security::Cryptography::AsymmetricSignatureFormatter

public class RSAPKCS1SignatureFormatter : System.Security.Cryptography.AsymmetricSignatureFormatter

[System.Runtime.InteropServices.ComVisible(true)]
public class RSAPKCS1SignatureFormatter : System.Security.Cryptography.AsymmetricSignatureFormatter

type RSAPKCS1SignatureFormatter = class
    inherit AsymmetricSignatureFormatter

[<System.Runtime.InteropServices.ComVisible(true)>]
type RSAPKCS1SignatureFormatter = class
    inherit AsymmetricSignatureFormatter

Public Class RSAPKCS1SignatureFormatter
Inherits AsymmetricSignatureFormatter

Overname

Object

AsymmetricSignatureFormatter

RSAPKCS1SignatureFormatter

Kenmerken

ComVisibleAttribute

Voorbeelden

In het volgende voorbeeld ziet u hoe u een PKCS #1 versie 1.5-handtekening maakt.

using System;
using System.Security.Cryptography;

class RSASample
{

    static void Main()
    {
        try
        {
            //Create a new instance of RSA.
            using (RSA rsa = RSA.Create())
            {
                //The hash to sign.
                byte[] hash;
                using (SHA256 sha256 = SHA256.Create())
                {
                    byte[] data = new byte[] { 59, 4, 248, 102, 77, 97, 142, 201, 210, 12, 224, 93, 25, 41, 100, 197, 213, 134, 130, 135 };
                    hash = sha256.ComputeHash(data);
                }

                //Create an RSASignatureFormatter object and pass it the 
                //RSA instance to transfer the key information.
                RSAPKCS1SignatureFormatter RSAFormatter = new RSAPKCS1SignatureFormatter(rsa);

                //Set the hash algorithm to SHA256.
                RSAFormatter.SetHashAlgorithm("SHA256");

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

Imports System.Security.Cryptography

Friend Class RSASample

    Shared Sub Main()
        Try
            'Create a new instance of RSA.
            Using rsa As RSA = RSA.Create()
                'The hash to sign.
                Dim hash() As Byte
                Using sha256 As SHA256 = SHA256.Create()
                    Dim data() As Byte = { 59, 4, 248, 102, 77, 97, 142, 201, 210, 12, 224, 93, 25, 41, 100, 197, 213, 134, 130, 135 }
                    hash = sha256.ComputeHash(data)
                End Using

                'Create an RSASignatureFormatter object and pass it the 
                'RSA to transfer the key information.
                Dim RSAFormatter As New RSAPKCS1SignatureFormatter(rsa)

                'Set the hash algorithm to SHA256.
                RSAFormatter.SetHashAlgorithm("SHA256")

                'Create a signature for HashValue and return it.
                Dim SignedHash() As Byte = RSAFormatter.CreateSignature(hash)
            End Using

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

End Class

Opmerkingen

Deze klasse wordt gebruikt om een digitale handtekening te maken met behulp van het RSA algoritme.

Gebruik RSAPKCS1SignatureDeformatter dit om digitale handtekeningen te verifiëren met het RSA algoritme.

Zie ook

• Cryptografische services