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package org.spongycastle.bcpg.sig;
import org.spongycastle.bcpg.SignatureSubpacket;
import org.spongycastle.bcpg.SignatureSubpacketTags;
/**
* packet giving time after creation at which the key expires.
*/
public class KeyExpirationTime
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 KeyExpirationTime(
boolean critical,
byte[] data)
{
super(SignatureSubpacketTags.KEY_EXPIRE_TIME, critical, data);
}
public KeyExpirationTime(
boolean critical,
long seconds)
{
super(SignatureSubpacketTags.KEY_EXPIRE_TIME, critical, timeToBytes(seconds));
}
/**
* Return the number of seconds after creation time a key is valid for.
*
* @return second count for key validity.
*/
public long getTime()
{
long time = ((long)(data[0] & 0xff) << 24) | ((data[1] & 0xff) << 16) | ((data[2] & 0xff) << 8) | (data[3] & 0xff);
return time;
}
}
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