org.bouncycastle.crypto.signers

Class ECGOST3410Signer

Implemented Interfaces:
DSA

public class ECGOST3410Signer
extends java.lang.Object
implements DSA

GOST R 34.10-2001 Signature Algorithm

Method Summary

BigInteger[]
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, BigInteger r, BigInteger s)
return true if the value r and s represent a GOST3410 signature for the passed in message (for standard GOST3410 the message should be a GOST3411 hash of the real message to be verified).

Method Details

generateSignature

public BigInteger[] generateSignature(byte[] message)
generate a signature for the given message using the key we were initialised with. For conventional GOST3410 the message should be a GOST3411 hash of the message of interest.
Specified by:
generateSignature in interface DSA

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


init

public void init(boolean forSigning,
                 CipherParameters param)
Specified by:
init in interface DSA


verifySignature

public boolean verifySignature(byte[] message,
                               BigInteger r,
                               BigInteger s)
return true if the value r and s represent a GOST3410 signature for the passed in message (for standard GOST3410 the message should be a GOST3411 hash of the real message to be verified).
Specified by:
verifySignature in interface DSA