[Cryptix-commits] projects/jce/src/cryptix.jce.test InsecureRandom.java

[<gel...@mx...>]

gelderen    03/02/07 10:11:36

  Added:       jce/src/cryptix.jce.test InsecureRandom.java
  Log:
  Add partially function fixed-sequence implementation of SecureRandom.
  This is useful to make randomized algorithms behave deterministically.

Revision  Changes    Path
1.1                  projects/jce/src/cryptix.jce.test/InsecureRandom.java

Index: InsecureRandom.java
===================================================================

package cryptix.jce.test;


import java.security.SecureRandom;


/*package*/ final class InsecureRandom extends SecureRandom {

    private final byte[] _stream;

    private int _streamOff;

    public InsecureRandom(byte[] stream) {
        _stream = stream;
        _streamOff = 0;
    }


    public void nextBytes(byte[] buf) {
        if(buf.length > (_stream.length - _streamOff))
            throw new Error("Out of fixed bytes!");

        System.arraycopy(_stream, _streamOff, buf, 0, buf.length);
        System.out.println("nextBytes yields: " + Util.toString(buf));
    }
}