RSAPKCS1SignatureFormatter Class
.NET Framework 2.0
Creates an RSA PKCS #1 version 1.5 signature.
Namespace: System.Security.Cryptography
Assembly: mscorlib (in mscorlib.dll)
Assembly: mscorlib (in mscorlib.dll)
'Declaration <ComVisibleAttribute(True)> _ Public Class RSAPKCS1SignatureFormatter Inherits AsymmetricSignatureFormatter 'Usage Dim instance As RSAPKCS1SignatureFormatter
/** @attribute ComVisibleAttribute(true) */ public class RSAPKCS1SignatureFormatter extends AsymmetricSignatureFormatter
ComVisibleAttribute(true) public class RSAPKCS1SignatureFormatter extends AsymmetricSignatureFormatter
This class is used to create a digital signature using the RSA algorithm.
Use RSAPKCS1SignatureDeformatter to verify digital signatures with the RSA algorithm.
Imports System Imports System.Security.Cryptography _ Class RSASample Shared Sub Main() Try 'Create a new instance of RSACryptoServiceProvider. Dim RSA As New RSACryptoServiceProvider() 'The hash to sign. Dim Hash As Byte() = {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. Dim RSAFormatter As New RSAPKCS1SignatureFormatter(RSA) 'Set the hash algorithm to SHA1. RSAFormatter.SetHashAlgorithm("SHA1") 'Create a signature for HashValue and return it. Dim SignedHash As Byte() = RSAFormatter.CreateSignature(Hash) Catch e As CryptographicException Console.WriteLine(e.Message) End Try End Sub End Class
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
System.Security.Cryptography.AsymmetricSignatureFormatter
System.Security.Cryptography.RSAPKCS1SignatureFormatter
Windows 98, Windows 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
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