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Bouncy Castle Cryptography 1.11 API Specification: Class PSSSigner

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Bouncy Castle Cryptography 1.11

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org.bouncycastle.crypto.signers
Class PSSSigner

java.lang.Object
  |
  +--org.bouncycastle.crypto.signers.PSSSigner

public class PSSSigner
extends java.lang.Object

RSA-PSS as described in PKCS# 1 v 2.1

Field Summary

static byte TRAILER_IMPLICIT


Constructor Summary

PSSSigner(AsymmetricBlockCipher cipher, Digest digest, int sLen)
          basic constructor

Method Summary

byte[] generateSignature(byte[] message)
          generate a signature for the given message using the key we were initialised with.

void init(boolean forSigning, CipherParameters param)


boolean verifySignature(byte[] message, byte[] signature)
          return true if the signature represents a ISO9796-2 signature for the passed in message.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TRAILER_IMPLICIT

public static final byte TRAILER_IMPLICIT

Constructor Detail

PSSSigner

public PSSSigner(AsymmetricBlockCipher cipher,
                 Digest digest,
                 int sLen)

basic constructor

Parameters:: cipher - the assymetric cipher to use.; digest - the digest to use.; sLen - the length of the salt to use (in bytes).

Method Detail

init

public void init(boolean forSigning,
                 CipherParameters param)

generateSignature

public byte[] generateSignature(byte[] message)
                         throws CryptoException,
                                DataLengthException

generate a signature for the given message using the key we were initialised with.

Parameters:: message - the message that will be verified later.

verifySignature

public boolean verifySignature(byte[] message,
                               byte[] signature)

return true if the signature represents a ISO9796-2 signature for the passed in message.