org.bouncycastle.pqc.crypto.gmss

Class GMSSSigner

java.lang.Object

org.bouncycastle.pqc.crypto.gmss.GMSSSigner

All Implemented Interfaces:

MessageSigner

public class GMSSSigner
extends java.lang.Object
implements MessageSigner

This class implements the GMSS signature scheme.

Constructor Summary

Constructors

Constructor and Description
GMSSSigner(GMSSDigestProvider digest) The standard constructor tries to generate the MerkleTree Algorithm identifier with the corresponding OID.

Method Summary

Modifier and Type	Method and Description
byte[]	generateSignature(byte[] message) Signs a message.
void	init(boolean forSigning, CipherParameters param) initialise the signer for signature generation or signature verification.
boolean	verifySignature(byte[] message, byte[] signature) This function verifies the signature of the message that has been updated, with the aid of the public key.

Methods inherited from class java.lang.Object

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

Constructor Detail

GMSSSigner

public GMSSSigner(GMSSDigestProvider digest)

The standard constructor tries to generate the MerkleTree Algorithm identifier with the corresponding OID.

Parameters:

digest - the digest to use

Method Detail

init

public void init(boolean forSigning,
                 CipherParameters param)

Description copied from interface: MessageSigner

initialise the signer for signature generation or signature verification.

Specified by:

init in interface MessageSigner

Parameters:

forSigning - true if we are generating a signature, false otherwise.

param - key parameters for signature generation.

generateSignature

public byte[] generateSignature(byte[] message)

Signs a message.

Specified by:

generateSignature in interface MessageSigner

Parameters:

message - the message to be signed.

Returns:

the signature.

verifySignature

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

This function verifies the signature of the message that has been updated, with the aid of the public key.

Specified by:

verifySignature in interface MessageSigner

Parameters:

message - the message

signature - the signature associated with the message

Returns:

true if the signature has been verified, false otherwise.