org.bouncycastle.crypto.internal.pqc.lms.LMSSigner Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bc-fips-debug Show documentation

The FIPS 140-2 Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms certified to FIPS 140-2 level 1. This jar contains the debug version JCE provider and low-level API for the BC-FJA version 1.0.2.3, FIPS Certificate #3514. Please note the debug jar is not certified.

There is a newer version: 2.0.0

Show newest version

/***************************************************************/
/******    DO NOT EDIT THIS CLASS bc-java SOURCE FILE     ******/
/***************************************************************/
package org.bouncycastle.crypto.internal.pqc.lms;

import java.io.IOException;

import org.bouncycastle.crypto.internal.CipherParameters;
import org.bouncycastle.crypto.internal.pqc.MessageSigner;

public class LMSSigner
    implements MessageSigner
{
    private LMSPrivateKeyParameters privKey;
    private LMSPublicKeyParameters pubKey;

    public void init(boolean forSigning, CipherParameters param)
    {
         if (forSigning)
         {
             privKey = (LMSPrivateKeyParameters)param;
         }
         else
         {
             pubKey = (LMSPublicKeyParameters)param;
         }
    }

    public byte[] generateSignature(byte[] message)
    {
        try
        {
            return LMS.generateSign(privKey, message).getEncoded();
        }
        catch (IOException e)
        {
            throw new IllegalStateException("unable to encode signature: " + e.getMessage());
        }
    }

    public boolean verifySignature(byte[] message, byte[] signature)
    {
        try
        {
            return LMS.verifySignature(pubKey, LMSSignature.getInstance(signature), message);
        }
        catch (IOException e)
        {
            throw new IllegalStateException("unable to decode signature: " + e.getMessage());
        }
    }
}