RSAPKCS1SignatureFormatter 類別

定義

命名空間:

System.Security.Cryptography

組件:

System.Security.Cryptography.dll

來源:

RSAPKCS1SignatureFormatter.cs

建立 RSA PKCS #1 1.5 版簽章。

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

[System.Runtime.Versioning.UnsupportedOSPlatform("browser")]
public class RSAPKCS1SignatureFormatter : System.Security.Cryptography.AsymmetricSignatureFormatter

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

Public Class RSAPKCS1SignatureFormatter
Inherits AsymmetricSignatureFormatter

繼承

Object

AsymmetricSignatureFormatter

RSAPKCS1SignatureFormatter

屬性

UnsupportedOSPlatformAttribute

範例

下列範例示範如何建立 PKCS #1 1.5 版簽章。

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

備註

這個類別是用來使用 RSA 演算法建立數字簽名。

使用 RSAPKCS1SignatureDeformatter 來驗證使用演算法的 RSA 數字簽名。

建構函式

RSAPKCS1SignatureFormatter()	初始化 RSAPKCS1SignatureFormatter 類別的新執行個體。
RSAPKCS1SignatureFormatter(AsymmetricAlgorithm)	使用指定的金鑰，初始化 RSAPKCS1SignatureFormatter 類別的新執行個體。

方法

CreateSignature(Byte[])	建立所指定資料的 RSA PKCS #1 簽章。
CreateSignature(HashAlgorithm)	建立指定雜湊值的簽章。 (繼承來源 AsymmetricSignatureFormatter)
Equals(Object)	判斷指定的物件是否等於目前的物件。 (繼承來源 Object)
GetHashCode()	做為預設雜湊函式。 (繼承來源 Object)
GetType()	取得目前執行個體的 Type。 (繼承來源 Object)
MemberwiseClone()	建立目前 Object 的淺層複製。 (繼承來源 Object)
SetHashAlgorithm(String)	設定建立簽章時所要使用的雜湊演算法。
SetKey(AsymmetricAlgorithm)	設定要用來建立簽章的私密金鑰。
ToString()	傳回代表目前物件的字串。 (繼承來源 Object)

另請參閱

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