diff options
Diffstat (limited to 'crc32.cc')
-rw-r--r-- | crc32.cc | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/crc32.cc b/crc32.cc deleted file mode 100644 index 558d4ef..0000000 --- a/crc32.cc +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Author: Copyright (C) Andrzej Surowiec 2012 - * - * - * This file is part of Nitrokey. - * - * Nitrokey 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 of the License, or - * any later version. - * - * Nitrokey 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 Nitrokey. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "crc32.h" - - -uint32_t Crc32 (uint32_t Crc, uint32_t Data) -{ -int i; - - Crc = Crc ^ Data; - - for (i = 0; i < 32; i++) - if (Crc & 0x80000000) - Crc = (Crc << 1) ^ 0x04C11DB7; // Polynomial used in STM32 - else - Crc = (Crc << 1); - - return (Crc); -} |