proxmark3/armsrc/des.h
Philippe Teuwen d19754567d summer restructuring:
* .h include only the strict minimum for their own parsing
  * this forces all files to include explicitment their needs and not count on far streched dependencies
  * this helps Makefile to rebuild only the minimum
  * according to this rule, most standalone .h are now gone
  * big app.h is gone
  * remove seldom __cplusplus, if c++ happens, everything will have to be done properly anyway
* all unrequired include were removed
* split common/ into common/ (client+arm) and common_arm/ (os+bootloader)
  * bring zlib to common/
  * bring stuff not really/not yet used in common back to armsrc/ or client/
  * bring liblua into client/
  * bring uart into client/
  * move some portions of code around (dbprint, protocols,...)
* rename unused files into *_disabled.[ch] to make it explicit
* rename soft Uarts between 14a, 14b and iclass, so a standalone could use several without clash
* remove PrintAndLogDevice
* move deprecated-hid-flasher from client to tools
* Makefiles
  * treat deps in armsrc/ as in client/
  * client: stop on warning (-Werror), same as for armsrc/

Tested on:

* all standalone modes
* Linux
2019-08-11 21:42:01 +02:00

114 lines
4.6 KiB
C

/* des.h */
/*
This file is part of the ARM-Crypto-Lib.
Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* \file des.h
* \author Daniel Otte
* \date 2007-06-16
* \brief des and tdes declarations
* \license GPLv3 or later
*
*/
#ifndef __DES_H_
#define __DES_H_
#include "common.h"
/* the FIPS 46-3 (1999-10-25) name for triple DES is triple data encryption algorithm so TDEA.
* Also we only implement the three key mode */
/** \def tdea_enc
* \brief defining an alias for void tdes_enc(void* out, const void* in, const void* key)
*/
/** \def tdea_dec
* \brief defining an alias for void tdes_dec(void* out, const void* in, const void* key)
*/
#define tdea_enc tdes_enc
#define tdea_dec tdes_dec
/** \fn void des_enc(void* out, const void* in, const void* key)
* \brief encrypt a block with DES
*
* This function encrypts a block of 64 bits (8 bytes) with the DES algorithm.
* Key expansion is done automatically. The key is 64 bits long, but note that
* only 56 bits are used (the LSB of each byte is dropped). The input and output
* blocks may overlap.
*
* \param out pointer to the block (64 bit = 8 byte) where the ciphertext is written to
* \param in pointer to the block (64 bit = 8 byte) where the plaintext is read from
* \param key pointer to the key (64 bit = 8 byte)
*/
void des_enc(void *out, const void *in, const void *key);
/** \fn void des_dec(void* out, const void* in, const void* key)
* \brief decrypt a block with DES
*
* This function decrypts a block of 64 bits (8 bytes) with the DES algorithm.
* Key expansion is done automatically. The key is 64 bits long, but note that
* only 56 bits are used (the LSB of each byte is dropped). The input and output
* blocks may overlap.
*
* \param out pointer to the block (64 bit = 8 byte) where the plaintext is written to
* \param in pointer to the block (64 bit = 8 byte) where the ciphertext is read from
* \param key pointer to the key (64 bit = 8 byte)
*/
//void des_dec(void* out, const void* in, const void* key);
void des_dec(void *out, const void *in, const uint8_t *key);
/** \fn void tdes_enc(void* out, const void* in, const void* key)
* \brief encrypt a block with Tripple-DES
*
* This function encrypts a block of 64 bits (8 bytes) with the Tripple-DES (EDE)
* algorithm. Key expansion is done automatically. The key is 192 bits long, but
* note that only 178 bits are used (the LSB of each byte is dropped). The input
* and output blocks may overlap.
*
* \param out pointer to the block (64 bit = 8 byte) where the ciphertext is written to
* \param in pointer to the block (64 bit = 8 byte) where the plaintext is read from
* \param key pointer to the key (192 bit = 24 byte)
*/
//void tdes_enc(void* out, const void* in, const void* key);
void tdes_enc(void *out, void *in, const void *key);
/** \fn void tdes_dec(void* out, const void* in, const void* key)
* \brief decrypt a block with Tripple-DES
*
* This function decrypts a block of 64 bits (8 bytes) with the Tripple-DES (EDE)
* algorithm. Key expansion is done automatically. The key is 192 bits long, but
* note that only 178 bits are used (the LSB of each byte is dropped). The input
* and output blocks may overlap.
*
* \param out pointer to the block (64 bit = 8 byte) where the plaintext is written to
* \param in pointer to the block (64 bit = 8 byte) where the ciphertext is read from
* \param key pointer to the key (192 bit = 24 byte)
*/
//void tdes_dec(void* out, const void* in, const void* key);
void tdes_dec(void *out, void *in, const uint8_t *key);
void tdes_2key_enc(void *out, const void *in, size_t length, const void *key, unsigned char iv[8]);
void tdes_2key_dec(void *out, const void *in, size_t length, const void *key, unsigned char iv[8]);
// Copied from des.h in desfire imp.
typedef unsigned long DES_KS[16][2]; /* Single-key DES key schedule */
typedef unsigned long DES3_KS[48][2]; /* Triple-DES key schedule */
extern int Asmversion; /* 1 if we're linked with an asm version, 0 if C */
#endif /*DES_H_*/