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63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// See LICENSE.txt for the text of the license.
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//-----------------------------------------------------------------------------
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// Low frequency EM4x70 structs -- common to both ARM firmware and client
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//-----------------------------------------------------------------------------
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#ifndef EM4X70_H__
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#define EM4X70_H__
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#include <stdint.h>
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#include <stdbool.h>
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#define EM4X70_NUM_BLOCKS 16
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// Common word/block addresses
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#define EM4X70_PIN_WORD_LOWER 10
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#define EM4X70_PIN_WORD_UPPER 11
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typedef struct {
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// ISSUE: `bool` type does not have a standard-defined size.
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// therefore, compatibility between architectures /
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// compilers is not guaranteed.
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// ISSUE: C99 has no _Static_assert() ... was added in C11
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// TODO: add _Static_assert(sizeof(bool)==1);
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// TODO: add _Static_assert(sizeof(em4x70_data_t)==36);
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bool parity;
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// Used for writing address
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uint8_t address;
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// ISSUE: Presumes target is little-endian
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uint16_t word;
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// PIN to unlock
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uint32_t pin;
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// Used for authentication
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uint8_t frnd[4];
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uint8_t grnd[3];
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uint8_t rnd[7];
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// Used to write new key
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uint8_t crypt_key[12];
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// used for bruteforce the partial key
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// ISSUE: Presumes target is little-endian
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uint16_t start_key;
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} em4x70_data_t;
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#endif /* EM4X70_H__ */
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