/*
* Copyright 2013 NORDUnet A/S
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS,WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied.
*
* See the License for the specific language governing permissions and limitations under the License.
*/
package org.globus.gsi.util;
import org.bouncycastle.asn1.DERBitString;
public enum KeyUsage
{
DIGITAL_SIGNATURE(0),
NON_REPUDIATION(1),
KEY_ENCIPHERMENT(2),
DATA_ENCIPHERMENT(3),
KEY_AGREEMENT(4),
KEY_CERTSIGN(5),
CRL_SIGN(6),
ENCIPHER_ONLY(7),
DECIPHER_ONLY(8);
private int bit;
private KeyUsage(int bit) {
this.bit = bit;
}
public boolean isSet(DERBitString bits) {
byte[] bytes = bits.getBytes();
int length = (bytes.length * 8) - bits.getPadBits();
return (bit < length && ((bytes[bit / 8] & (0x80 >>> (bit % 8))) != 0));
}
}