/*
* Syncany, www.syncany.org
* Copyright (C) 2011-2015 Philipp C. Heckel <philipp.heckel@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.syncany.crypto;
import java.util.Arrays;
import javax.crypto.SecretKey;
import org.syncany.util.StringUtil;
/**
* A salted secret key is a convenience class to bundle a {@link SecretKey} with
* its corresponding salt. It is mainly used to represent the master key and the
* master key salt.
*
* @author Philipp C. Heckel <philipp.heckel@gmail.com>
*/
public class SaltedSecretKey implements SecretKey {
private static final long serialVersionUID = 1216126055360327470L;
private SecretKey secretKey;
private byte[] salt;
public SaltedSecretKey(SecretKey secretKey, byte[] salt) {
this.secretKey = secretKey;
this.salt = salt;
}
public byte[] getSalt() {
return salt;
}
@Override
public String getAlgorithm() {
return secretKey.getAlgorithm();
}
@Override
public String getFormat() {
return secretKey.getFormat();
}
@Override
public byte[] getEncoded() {
return secretKey.getEncoded();
}
@Override
public String toString() {
return "[secretKey={algorithm=" + getAlgorithm() + ", format=" + getFormat() + ", encoded=" + StringUtil.toHex(getEncoded()) + "}, salt="
+ StringUtil.toHex(getSalt()) + "]";
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + Arrays.hashCode(salt);
result = prime * result + ((secretKey == null) ? 0 : secretKey.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof SaltedSecretKey)) {
return false;
}
SaltedSecretKey other = (SaltedSecretKey) obj;
if (!Arrays.equals(salt, other.salt)) {
return false;
}
if (secretKey == null) {
if (other.secretKey != null) {
return false;
}
}
else if (!secretKey.equals(other.secretKey)) {
return false;
}
return true;
}
}