RSAPKCS1SignatureFormatter クラス

定義

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

[System.Runtime.Versioning.UnsupportedOSPlatform("browser")]
public 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

[<System.Runtime.Versioning.UnsupportedOSPlatform("browser")>]
type RSAPKCS1SignatureFormatter = class
    inherit AsymmetricSignatureFormatter

type RSAPKCS1SignatureFormatter = class
    inherit AsymmetricSignatureFormatter

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

Public Class RSAPKCS1SignatureFormatter
Inherits AsymmetricSignatureFormatter

継承

Object

AsymmetricSignatureFormatter

RSAPKCS1SignatureFormatter

属性

UnsupportedOSPlatformAttribute ComVisibleAttribute

例

次の例では、PKCS #1 バージョン 1.5 署名を作成する方法を示します。

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

注釈

このクラスは、 アルゴリズムを使用してデジタル署名を作成するために使用されます RSA 。

アルゴリズムを使用してデジタル署名を検証するには、 をRSA使用RSAPKCS1SignatureDeformatterします。

コンストラクター

メソッド

適用対象

こちらもご覧ください

• Cryptographic Services