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https://github.com/Proxmark/proxmark3.git
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f028213f0e
Not sure what has changed in the Proxmark firmware, but not quite working the same. hf iclass dump, sometimes does not accurately get the CSN and CC used for Authentication. Other times it fails to execute the procedure to dump the card, or a correct MAC is diagnosed as authentication failure. However, if a MAC is corrected calculated, card contents ca be dumped with hf iclass replay <MAC> It could be down to the antenna? as I am Using the RyscCorp HF Antenna. Requires further testing!
47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
/*****************************************************************************
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* This file is part of iClassCipher. It is a reconstructon of the cipher engine
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* used in iClass, and RFID techology.
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*
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* The implementation is based on the work performed by
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* Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
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* Milosch Meriac in the paper "Dismantling IClass".
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*
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* Copyright (C) 2014 Martin Holst Swende
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*
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* This is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* This file 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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* You should have received a copy of the GNU General Public License
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* along with IClassCipher. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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#ifndef CIPHER_H
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#define CIPHER_H
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#include <stdint.h>
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/**
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* Definition 1 (Cipher state). A cipher state of iClass s is an element of F 40/2
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* consisting of the following four components:
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* 1. the left register l = (l 0 . . . l 7 ) ∈ F 8/2 ;
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* 2. the right register r = (r 0 . . . r 7 ) ∈ F 8/2 ;
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* 3. the top register t = (t 0 . . . t 15 ) ∈ F 16/2 .
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* 4. the bottom register b = (b 0 . . . b 7 ) ∈ F 8/2 .
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**/
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typedef struct {
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uint8_t l;
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uint8_t r;
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uint8_t b;
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uint16_t t;
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} State;
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void printarr(char * name, uint8_t* arr, int len);
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int calc_iclass_mac(uint8_t *cc_nr_p, int length, uint8_t *div_key_p, uint8_t *mac);
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#endif // CIPHER_H
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