/*
* Copyright 2010 Srikanth Reddy Lingala
*
* 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 net.lingala.zip4j.crypto.PBKDF2;
/*
* Source referred from Matthias Gartner's PKCS#5 implementation -
* see http://rtner.de/software/PBKDF2.html
*/
class PBKDF2HexFormatter
{
public boolean fromString(PBKDF2Parameters p, String s)
{
if (p == null || s == null)
{
return true;
}
String[] p123 = s.split(":");
if (p123 == null || p123.length != 3)
{
return true;
}
byte salt[] = BinTools.hex2bin(p123[0]);
int iterationCount = Integer.parseInt(p123[1]);
byte bDK[] = BinTools.hex2bin(p123[2]);
p.setSalt(salt);
p.setIterationCount(iterationCount);
p.setDerivedKey(bDK);
return false;
}
public String toString(PBKDF2Parameters p)
{
String s = BinTools.bin2hex(p.getSalt()) + ":"
+ String.valueOf(p.getIterationCount()) + ":"
+ BinTools.bin2hex(p.getDerivedKey());
return s;
}
}