RSAPKCS1SignatureFormatter 类

定义

命名空间:

System.Security.Cryptography

程序集:

System.Security.Cryptography.Algorithms.dll

程序集:

System.Security.Cryptography.dll

程序集:

mscorlib.dll

程序集:

netstandard.dll

创建 RSA PKCS #1 1.5 版签名。

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

继承

Object

AsymmetricSignatureFormatter

RSAPKCS1SignatureFormatter

属性

UnsupportedOSPlatformAttribute ComVisibleAttribute

示例

以下示例演示如何创建 PKCS #1 版本 1.5 签名。

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

注解

此类用于使用 RSA 算法创建数字签名。

用于 RSAPKCS1SignatureDeformatter 使用 RSA 算法验证数字签名。

构造函数

RSAPKCS1SignatureFormatter()	初始化 RSAPKCS1SignatureFormatter 类的新实例。
RSAPKCS1SignatureFormatter(AsymmetricAlgorithm)	使用指定的密钥初始化 RSAPKCS1SignatureFormatter 类的新实例。

方法

CreateSignature(Byte[])	为指定数据创建 RSA PKCS #1 签名。
CreateSignature(HashAlgorithm)	使用指定哈希值创建签名。 (继承自 AsymmetricSignatureFormatter)
Equals(Object)	确定指定对象是否等于当前对象。 (继承自 Object)
GetHashCode()	作为默认哈希函数。 (继承自 Object)
GetType()	获取当前实例的 Type。 (继承自 Object)
MemberwiseClone()	创建当前 Object 的浅表副本。 (继承自 Object)
SetHashAlgorithm(String)	设置用于创建签名的哈希算法。
SetKey(AsymmetricAlgorithm)	设置要用于创建签名的私钥。
ToString()	返回表示当前对象的字符串。 (继承自 Object)

另请参阅

• 加密服务