}


    @Override
    public byte[] toByteArray () {
        try {
            ASN1EncodableVector fields = new ASN1EncodableVector();
            ASN1ObjectIdentifier[] mechs = getMechanisms();
            if ( mechs != null ) {
                ASN1EncodableVector vector = new ASN1EncodableVector();
                for ( int i = 0; i < mechs.length; i++ ) {
                    vector.add(mechs[ i ]);