throw new IllegalStateException();
        }
    }

    protected int engineGetDigestLength() {
        return md5.getDigestLength();
    }

    protected void engineReset() {
        md5.reset();
        md5.update(ipad);
    }

    protected void engineUpdate(byte b) {
        md5.update(b);
    }

    protected void engineUpdate(byte[] input, int offset, int len) {

    }


    @Override
    protected int engineGetDigestLength () {
        return this.md5.getDigestLength();
    }


    @Override
    protected void engineReset () {
        this.md5.reset();
        this.md5.update(this.ipad);
    }


    @Override
    protected void engineUpdate ( byte b ) {
        this.md5.update(b);
    }


    @Override