@Override
    public byte[] initSecContext(final byte[] token, final int offset, final int len) throws SmbException {
        return switch (this.state) {
        case 1 -> makeNegotiate(token);
        case 2 -> makeAuthenticate(token);
        default -> throw new SmbException("Invalid state");
        };
    }

    /**
     * Creates a Type 3 (authentication) message in response to a Type 2 (challenge) message.