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RSAPKCS1SignatureFormatter Class

Creates an RSA PKCS #1 version 1.5 signature.

Namespace: System.Security.Cryptography
Assembly: mscorlib (in mscorlib.dll)

[ComVisibleAttribute(true)] 
public class RSAPKCS1SignatureFormatter : AsymmetricSignatureFormatter
/** @attribute ComVisibleAttribute(true) */ 
public class RSAPKCS1SignatureFormatter extends AsymmetricSignatureFormatter
ComVisibleAttribute(true) 
public class RSAPKCS1SignatureFormatter extends AsymmetricSignatureFormatter
Not applicable.

This class is used to create a digital signature using the RSA algorithm.

Use RSAPKCS1SignatureDeformatter to verify digital signatures with the RSA algorithm.

using System;
using System.Security.Cryptography;

class RSASample
{
		
	static void Main()
	{
		try
		{
			//Create a new instance of RSACryptoServiceProvider.
			RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();

			//The hash to sign.
			byte[] Hash = {59,4,248,102,77,97,142,201,210,12,224,93,25,41,100,197,213,134,130,135};

			//Create an RSAOPKCS1SignatureFormatter object and pass it the 
			//RSACryptoServiceProvider to transfer the key information.
			RSAPKCS1SignatureFormatter RSAFormatter = new RSAPKCS1SignatureFormatter(RSA);

			//Set the hash algorithm to SHA1.
			RSAFormatter.SetHashAlgorithm("SHA1");

			//Create a signature for HashValue and return it.
			byte[] SignedHash = RSAFormatter.CreateSignature(Hash);


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

}

import System.*;
import System.Security.Cryptography.*;

class RSASample
{
    public static void main(String[] args)
    {
        try {
            // Create a new instance of RSACryptoServiceProvider.
            RSACryptoServiceProvider rsa =  new RSACryptoServiceProvider();
            
            //The hash to sign.
            ubyte hash[] =  {59, 4, 248, 102, 77, 97, 142, 201, 210, 12, 
                224, 93, 25, 41, 100, 197, 213, 134, 130, 135};
            
            // Create an RSAOPKCS1SignatureFormatter object and pass it the 
            // RSACryptoServiceProvider to transfer the key information.
            RSAPKCS1SignatureFormatter rsaFormatter =  
                new RSAPKCS1SignatureFormatter(rsa);
            
            // Set the hash algorithm to SHA1.
            rsaFormatter.SetHashAlgorithm("SHA1");
            
            // Create a signature for HashValue and return it.
            ubyte signedHash[] = rsaFormatter.CreateSignature(hash);
        } 
        catch (CryptographicException e) {
            Console.WriteLine(e.get_Message());
        }
    } //main
} //RSASample

System.Object
   System.Security.Cryptography.AsymmetricSignatureFormatter
    System.Security.Cryptography.RSAPKCS1SignatureFormatter

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0

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