diff options
Diffstat (limited to 'lib/decryption/decryption_impl.cc')
| -rw-r--r-- | lib/decryption/decryption_impl.cc | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/lib/decryption/decryption_impl.cc b/lib/decryption/decryption_impl.cc index 9e6112b..551afa4 100644 --- a/lib/decryption/decryption_impl.cc +++ b/lib/decryption/decryption_impl.cc @@ -1,19 +1,22 @@ /* -*- c++ -*- */ /* - * Copyright 2014 <+YOU OR YOUR COMPANY+>. + * @file + * @author (C) 2014 by Piotr Krysik <ptrkrysik@gmail.com> + * @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com> + * @section LICENSE * - * This is free software; you can redistribute it and/or modify + * Gr-gsm 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 3, or (at your option) * any later version. * - * This software is distributed in the hope that it will be useful, + * Gr-gsm 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. * * You should have received a copy of the GNU General Public License - * along with this software; see the file COPYING. If not, write to + * along with gr-gsm; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, * Boston, MA 02110-1301, USA. */ @@ -57,7 +60,6 @@ namespace gr { set_a5_version(a5_version); validate_k_c(); -// std::cout << "Be careful with decryption block - it wasn't tested yet!" << std::endl; message_port_register_in(pmt::mp("bursts")); set_msg_handler(pmt::mp("bursts"), boost::bind(&decryption_impl::decrypt, this, _1)); message_port_register_out(pmt::mp("bursts")); @@ -138,7 +140,7 @@ namespace gr { for (int i = 0; i < 3; i++) { decrypted_data[i] = burst_binary[i]; } - //encrypt first part of the burst + //decrypt first part of the burst for (int i = 0; i < 57; i++) { decrypted_data[i+3] = keystream[i] ^ burst_binary[i+3]; } @@ -146,7 +148,7 @@ namespace gr { for (int i = 60; i < 88; i++) { decrypted_data[i] = burst_binary[i]; } - //encrypt second part of the burst + //decrypt second part of the burst for (int i = 0; i < 57; i++) { decrypted_data[i+88] = keystream[i+57] ^ burst_binary[i+88]; } |