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package org.spongycastle.bcpg.sig;
import org.spongycastle.bcpg.SignatureSubpacket;
import org.spongycastle.bcpg.SignatureSubpacketTags;
/**
* Packet holding the key flag values.
*/
public class KeyFlags
extends SignatureSubpacket
{
public static final int CERTIFY_OTHER = 0x01;
public static final int SIGN_DATA = 0x02;
public static final int ENCRYPT_COMMS = 0x04;
public static final int ENCRYPT_STORAGE = 0x08;
public static final int SPLIT = 0x10;
public static final int AUTHENTICATION = 0x20;
public static final int SHARED = 0x80;
private static byte[] intToByteArray(
int v)
{
byte[] tmp = new byte[4];
int size = 0;
for (int i = 0; i != 4; i++)
{
tmp[i] = (byte)(v >> (i * 8));
if (tmp[i] != 0)
{
size = i;
}
}
byte[] data = new byte[size + 1];
System.arraycopy(tmp, 0, data, 0, data.length);
return data;
}
public KeyFlags(
boolean critical,
byte[] data)
{
super(SignatureSubpacketTags.KEY_FLAGS, critical, data);
}
public KeyFlags(
boolean critical,
int flags)
{
super(SignatureSubpacketTags.KEY_FLAGS, critical, intToByteArray(flags));
}
/**
* Return the flag values contained in the first 4 octets (note: at the moment
* the standard only uses the first one).
*
* @return flag values.
*/
public int getFlags()
{
int flags = 0;
for (int i = 0; i != data.length; i++)
{
flags |= (data[i] & 0xff) << (i * 8);
}
return flags;
}
}
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