org.bouncycastle.bcpg.sig.IssuerKeyID 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.sig;

import org.bouncycastle.bcpg.SignatureSubpacket;
import org.bouncycastle.bcpg.SignatureSubpacketTags;

/**
 * packet giving the issuer key ID.
 */
public class IssuerKeyID 
    extends SignatureSubpacket
{
    protected static byte[] keyIDToBytes(
        long    keyId)
    {
        byte[]    data = new byte[8];
        
        data[0] = (byte)(keyId >> 56);
        data[1] = (byte)(keyId >> 48);
        data[2] = (byte)(keyId >> 40);
        data[3] = (byte)(keyId >> 32);
        data[4] = (byte)(keyId >> 24);
        data[5] = (byte)(keyId >> 16);
        data[6] = (byte)(keyId >> 8);
        data[7] = (byte)keyId;
        
        return data;
    }
    
    public IssuerKeyID(
        boolean    critical,
        boolean    isLongLength,
        byte[]     data)
    {
        super(SignatureSubpacketTags.ISSUER_KEY_ID, critical, isLongLength, data);
    }
    
    public IssuerKeyID(
        boolean    critical,
        long       keyID)
    {
        super(SignatureSubpacketTags.ISSUER_KEY_ID, critical, false, keyIDToBytes(keyID));
    }
    
    public long getKeyID()
    {
        long    keyID = ((long)(data[0] & 0xff) << 56) | ((long)(data[1] & 0xff) << 48) | ((long)(data[2] & 0xff) << 40) | ((long)(data[3] & 0xff) << 32)
                                | ((long)(data[4] & 0xff) << 24) | ((data[5] & 0xff) << 16) | ((data[6] & 0xff) << 8) | (data[7] & 0xff);
        
        return keyID;
    }
}