unleashed-firmware/applications/plugins/picopass/lib/loclass/optimized_cipherutils.h
hedger 9bf11d9fd2
[FL-2859,2838] fbt: improvements for FAPs ()
* fbt: assets builder for apps WIP
* fbt: automatically building private fap assets
* docs: details on how to use image assets
* fbt: renamed fap_assets -> fap_icons
* fbt: support for fap_extbuild field
* docs: info on fap_extbuild
* fbt: added --proxy-env parame ter
* fbt: made firmware_cdb & updater_cdb targets always available
* fbt: renamed fap_icons -> fap_icon_assets
* fbt: deprecated firmware_* target names for faps; new alias is "fap_APPID"
* fbt: changed intermediate file locations for external apps
* fbt: support for fap_private_libs; docs: updates
* restored mbedtls as global lib
* scripts: lint.py: skip "lib" subfolder
* fbt: Sanity checks for building advanced faps as part of fw
* docs: info on fap_private_libs; fbt: optimized *.fam indexing
* fbt: cleanup; samples: added sample_icons app
* fbt: moved example app to applications/examples
* linter fix
* docs: readme fixes
* added applications/examples/application.fam stub
* docs: more info on private libs

Co-authored-by: あく <alleteam@gmail.com>
2022-10-06 22:55:57 +09:00

64 lines
2.6 KiB
C

//-----------------------------------------------------------------------------
// Borrowed initially from https://github.com/holiman/loclass
// More recently from https://github.com/RfidResearchGroup/proxmark3
// Copyright (C) 2014 Martin Holst Swende
// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// See LICENSE.txt for the text of the license.
//-----------------------------------------------------------------------------
// WARNING
//
// THIS CODE IS CREATED FOR EXPERIMENTATION AND EDUCATIONAL USE ONLY.
//
// USAGE OF THIS CODE IN OTHER WAYS MAY INFRINGE UPON THE INTELLECTUAL
// PROPERTY OF OTHER PARTIES, SUCH AS INSIDE SECURE AND HID GLOBAL,
// AND MAY EXPOSE YOU TO AN INFRINGEMENT ACTION FROM THOSE PARTIES.
//
// THIS CODE SHOULD NEVER BE USED TO INFRINGE PATENTS OR INTELLECTUAL PROPERTY RIGHTS.
//-----------------------------------------------------------------------------
// It is a reconstruction of the cipher engine used in iClass, and RFID techology.
//
// The implementation is based on the work performed by
// Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
// Milosch Meriac in the paper "Dismantling IClass".
//-----------------------------------------------------------------------------
#ifndef CIPHERUTILS_H
#define CIPHERUTILS_H
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
typedef struct {
uint8_t* buffer;
uint8_t numbits;
uint8_t position;
} LoclassBitstreamIn_t;
typedef struct {
uint8_t* buffer;
uint8_t numbits;
uint8_t position;
} LoclassBitstreamOut_t;
bool loclass_headBit(LoclassBitstreamIn_t* stream);
bool loclass_tailBit(LoclassBitstreamIn_t* stream);
void loclass_pushBit(LoclassBitstreamOut_t* stream, bool bit);
int loclass_bitsLeft(LoclassBitstreamIn_t* stream);
void loclass_push6bits(LoclassBitstreamOut_t* stream, uint8_t bits);
void loclass_x_num_to_bytes(uint64_t n, size_t len, uint8_t* dest);
uint64_t loclass_x_bytes_to_num(uint8_t* src, size_t len);
uint8_t loclass_reversebytes(uint8_t b);
void loclass_reverse_arraybytes(uint8_t* arr, size_t len);
void loclass_reverse_arraycopy(uint8_t* arr, uint8_t* dest, size_t len);
#endif // CIPHERUTILS_H