common/legic_prng.h

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // See LICENSE.txt for the text of the license.
  15 //-----------------------------------------------------------------------------
  16 // LEGIC's obfuscation function
  17 //-----------------------------------------------------------------------------
  18
  19 #ifndef __LEGIC_PRNG_H
  20 #define __LEGIC_PRNG_H
  21
  22 #include "common.h"
  23
  24 void legic_prng_init(uint8_t iv);
  25 void legic_prng_forward(int count);
  26 uint8_t legic_prng_get_bit(void);
  27 uint32_t legic_prng_get_bits(uint8_t len);
  28
  29 #endif
  30