RSAPKCS1SignatureDeformatter RSAPKCS1SignatureDeformatter RSAPKCS1SignatureDeformatter RSAPKCS1SignatureDeformatter Class

定义

验证 RSA PKCS #1 1.5 版签名。Verifies an RSA PKCS #1 version 1.5 signature.

public ref class RSAPKCS1SignatureDeformatter : System::Security::Cryptography::AsymmetricSignatureDeformatter
[System.Runtime.InteropServices.ComVisible(true)]
public class RSAPKCS1SignatureDeformatter : System.Security.Cryptography.AsymmetricSignatureDeformatter
type RSAPKCS1SignatureDeformatter = class
    inherit AsymmetricSignatureDeformatter
Public Class RSAPKCS1SignatureDeformatter
Inherits AsymmetricSignatureDeformatter
继承
RSAPKCS1SignatureDeformatterRSAPKCS1SignatureDeformatterRSAPKCS1SignatureDeformatterRSAPKCS1SignatureDeformatter
属性

示例

下面的示例演示如何使用VerifySignature方法来验证签名。The following example demonstrates how to use the VerifySignature method to verify a signature.

using System;
using System.Security.Cryptography;

class RSASample
{

    static void Main()
    {
        try
        {
            //Create a new instance of RSACryptoServiceProvider.
            using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider())
            {
                //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 
                //RSACryptoServiceProvider 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);
                //Create an RSAPKCS1SignatureDeformatter object and pass it the  
                //RSACryptoServiceProvider to transfer the key information.
                RSAPKCS1SignatureDeformatter RSADeformatter = new RSAPKCS1SignatureDeformatter(rsa);
                RSADeformatter.SetHashAlgorithm("SHA256");
                //Verify the hash and display the results to the console. 
                if (RSADeformatter.VerifySignature(hash, signedHash))
                {
                    Console.WriteLine("The signature was verified.");
                }
                else
                {
                    Console.WriteLine("The signature was not verified.");
                }
            }

        }
        catch (CryptographicException e)
        {
            Console.WriteLine(e.Message);
        }
    }

}
Imports System.Security.Cryptography

Friend Class RSASample

	Shared Sub Main()
		Try
			'Create a new instance of RSACryptoServiceProvider.
			Using rsa As New RSACryptoServiceProvider()
				'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 
				'RSACryptoServiceProvider 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)
				'Create an RSAPKCS1SignatureDeformatter object and pass it the  
				'RSACryptoServiceProvider to transfer the key information.
				Dim RSADeformatter As New RSAPKCS1SignatureDeformatter(rsa)
				RSADeformatter.SetHashAlgorithm("SHA256")
				'Verify the hash and display the results to the console. 
				If RSADeformatter.VerifySignature(hash, signedHash) Then
					Console.WriteLine("The signature was verified.")
				Else
					Console.WriteLine("The signature was not verified.")
				End If
			End Using

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

End Class

注解

此类用于验证使用RSA算法进行数字签名。This class is used to verify a digital signature made with the RSA algorithm.

用于RSAPKCS1SignatureFormatter使用RSA算法创建数字签名。Use RSAPKCS1SignatureFormatter to create digital signatures with the RSA algorithm.

构造函数

RSAPKCS1SignatureDeformatter() RSAPKCS1SignatureDeformatter() RSAPKCS1SignatureDeformatter() RSAPKCS1SignatureDeformatter()

初始化 RSAPKCS1SignatureDeformatter 类的新实例。Initializes a new instance of the RSAPKCS1SignatureDeformatter class.

RSAPKCS1SignatureDeformatter(AsymmetricAlgorithm) RSAPKCS1SignatureDeformatter(AsymmetricAlgorithm) RSAPKCS1SignatureDeformatter(AsymmetricAlgorithm) RSAPKCS1SignatureDeformatter(AsymmetricAlgorithm)

使用指定的密钥初始化 RSAPKCS1SignatureDeformatter 类的新实例。Initializes a new instance of the RSAPKCS1SignatureDeformatter class with the specified key.

方法

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

确定指定的对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

作为默认哈希函数。Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

获取当前实例的 TypeGets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(Inherited from Object)
SetHashAlgorithm(String) SetHashAlgorithm(String) SetHashAlgorithm(String) SetHashAlgorithm(String)

设置用于验证签名的哈希算法。Sets the hash algorithm to use for verifying the signature.

SetKey(AsymmetricAlgorithm) SetKey(AsymmetricAlgorithm) SetKey(AsymmetricAlgorithm) SetKey(AsymmetricAlgorithm)

设置用于验证签名的公钥。Sets the public key to use for verifying the signature.

ToString() ToString() ToString() ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(Inherited from Object)
VerifySignature(Byte[], Byte[]) VerifySignature(Byte[], Byte[]) VerifySignature(Byte[], Byte[]) VerifySignature(Byte[], Byte[])

验证指定数据的 RSA PKCS#1 签名。Verifies the RSA PKCS#1 signature for the specified data.

VerifySignature(HashAlgorithm, Byte[]) VerifySignature(HashAlgorithm, Byte[]) VerifySignature(HashAlgorithm, Byte[]) VerifySignature(HashAlgorithm, Byte[])

通过指定的哈希值验证签名。Verifies the signature from the specified hash value.

(Inherited from AsymmetricSignatureDeformatter)

适用于

另请参阅