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https://github.com/RfidResearchGroup/proxmark3.git
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44 lines
1.8 KiB
C
44 lines
1.8 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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#ifndef __HITAG2_CRYPTO_H
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#define __HITAG2_CRYPTO_H
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#include "common.h"
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struct hitag2_tag {
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uint32_t uid;
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enum {
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TAG_STATE_RESET = 0x01, // Just powered up, awaiting GetSnr
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TAG_STATE_ACTIVATING = 0x02, // In activation phase (password mode), sent UID, awaiting reader password
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TAG_STATE_ACTIVATED = 0x03, // Activation complete, awaiting read/write commands
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TAG_STATE_WRITING = 0x04, // In write command, awaiting sector contents to be written
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} state;
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uint16_t active_sector;
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uint8_t crypto_active;
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uint64_t cs;
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uint8_t sectors[12][4];
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};
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uint32_t _f20(const uint64_t x);
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uint64_t _hitag2_init(const uint64_t key, const uint32_t serial, const uint32_t IV);
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uint64_t _hitag2_round(uint64_t *state);
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uint32_t _hitag2_byte(uint64_t *x);
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void hitag2_cipher_reset(struct hitag2_tag *tag, const uint8_t *iv);
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int hitag2_cipher_authenticate(uint64_t *cs, const uint8_t *authenticator_is);
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int hitag2_cipher_transcrypt(uint64_t *cs, uint8_t *data, uint16_t bytes, uint16_t bits) ;
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#endif
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