org.jboss.seam.security.crypto
Interface PRF

All Known Implementing Classes:

MacBasedPRF

public interface PRF

Copied from Matthias Gartner's PKCS#5 implementation - see http://rtner.de/software/PBKDF2.html

A free Java implementation of Password Based Key Derivation Function 2 as defined by RFC 2898. Copyright (c) 2007 Matthias Gärtner

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

For Details, see http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

Version:

1.0

Author:

Matthias Gärtner

Method Summary

byte[]	doFinal(byte[] M) Pseudo Random Function
int	getHLen() Query block size of underlying algorithm/mechanism.
void	init(byte[] P) Initialize this instance with the user-supplied password.

Method Detail

init

void init(byte[] P)

Initialize this instance with the user-supplied password.

Parameters:

P - The password supplied as array of bytes. It is the caller's task to convert String passwords to bytes as appropriate.

doFinal

byte[] doFinal(byte[] M)

Pseudo Random Function

Parameters:

M - Input data/message etc. Together with any data supplied during initilization.

Returns:

Random bytes of hLen length.

getHLen

int getHLen()

Query block size of underlying algorithm/mechanism.

Returns:

block size