org.bouncycastle.bcpg.sig.IssuerKeyID.java Source code

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Here is the source code for org.bouncycastle.bcpg.sig.IssuerKeyID.java

Source

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;
    }
}