include/em4x70.h

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2020 sirloins
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // Low frequency EM4x70 structs
   9 //-----------------------------------------------------------------------------
  10
  11 #ifndef EM4X70_H__
  12 #define EM4X70_H__
  13
  14 #define EM4X70_NUM_BLOCKS 16
  15
  16 // Common word/block addresses
  17 #define EM4X70_PIN_WORD_LOWER 10
  18 #define EM4X70_PIN_WORD_UPPER 11
  19
  20 typedef struct {
  21     bool parity;
  22
  23     // Used for writing address
  24     uint8_t address;
  25     uint16_t word;
  26
  27     // PIN to unlock
  28     uint32_t pin;
  29
  30     // Used for authentication
  31     uint8_t rnd[7];
  32     uint8_t frnd[4];
  33
  34     // Used to write new key
  35     uint8_t crypt_key[12];
  36
  37 } em4x70_data_t;
  38
  39 #endif /* EM4X70_H__ */