org.bouncycastle.bcpg.ModDetectionCodePacket Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcpg-jdk15to18 Show documentation

The Bouncy Castle Java API for handling the OpenPGP protocol. This jar contains the OpenPGP API for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.

There is a newer version: 1.79

Show newest version

package org.bouncycastle.bcpg;

import java.io.*;

/**
 * basic packet for a modification detection code packet.
 */
public class ModDetectionCodePacket 
    extends ContainedPacket
{    
    private byte[]    digest;
    
    ModDetectionCodePacket(
        BCPGInputStream in)
        throws IOException
    {    
        this.digest = new byte[20];
        in.readFully(this.digest);
    }
    
    public ModDetectionCodePacket(
        byte[]    digest)
        throws IOException
    {    
        this.digest = new byte[digest.length];
        
        System.arraycopy(digest, 0, this.digest, 0, this.digest.length);
    }
    
    public byte[] getDigest()
    {
        byte[] tmp = new byte[digest.length];
        
        System.arraycopy(digest, 0, tmp, 0, tmp.length);
        
        return tmp;
    }
    
    public void encode(
        BCPGOutputStream    out) 
        throws IOException
    {
        out.writePacket(MOD_DETECTION_CODE, digest, false);
    }
}