source: other-projects/trunk/gs3-release-maker/tasks/sshtaskdef/src/mindbright/security/NativeHashState.java@ 14627

/******************************************************************************
 *
 * Copyright (c) 1998-2000 by Mindbright Technology AB, Stockholm, Sweden.
 *                 www.mindbright.se, [email protected]
 *
 * 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 2 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.
 *
 *****************************************************************************
 * $Author: mats $
 * $Date: 2000/05/12 12:41:45 $
 * $Name: rel1-2-1 $
 *****************************************************************************/
package mindbright.security;

public class NativeHashState extends MessageDigest {

    java.security.MessageDigest md;
    String                      myAlg;
  
    public NativeHashState() {
    }

    protected void init(String algorithm) throws Exception {
    myAlg = algorithm;
    if(algorithm.equals("SHA1"))
        algorithm = "SHA";
    md = java.security.MessageDigest.getInstance(algorithm);
    }

    public String getName() {
    return myAlg;
    }

    public void reset() {
    md.reset();
    }

    public void update(byte[] buffer, int offset, int length) {
    md.update(buffer,offset,length);
    }

    public byte[] digest() {
    return md.digest();
    }

    public int blockSize() {
    return 64;
    }

    public int hashSize() {
    if(myAlg.equals("SHA")) {
        return 20;
    } else {
        return 16;
    }
    }
}