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

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

Source

package org.bouncycastle.bcpg.sig;

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

/**
 * packet giving signature expiration time.
 */
public class SignatureExpirationTime extends SignatureSubpacket {
    protected static byte[] timeToBytes(long t) {
        byte[] data = new byte[4];

        data[0] = (byte) (t >> 24);
        data[1] = (byte) (t >> 16);
        data[2] = (byte) (t >> 8);
        data[3] = (byte) t;

        return data;
    }

    public SignatureExpirationTime(boolean critical, boolean isLongLength, byte[] data) {
        super(SignatureSubpacketTags.EXPIRE_TIME, critical, isLongLength, data);
    }

    public SignatureExpirationTime(boolean critical, long seconds) {
        super(SignatureSubpacketTags.EXPIRE_TIME, critical, false, timeToBytes(seconds));
    }

    /**
     * return time in seconds before signature expires after creation time.
     */
    public long getTime() {
        long time = ((long) (data[0] & 0xff) << 24) | ((data[1] & 0xff) << 16) | ((data[2] & 0xff) << 8)
                | (data[3] & 0xff);

        return time;
    }
}