diff options
Diffstat (limited to 'gnulib/lib/rijndael-api-fst.h')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/lib/rijndael-api-fst.h | 207 |
2 files changed, 207 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 4fc10daa05477586fea99b6b3ca02a87d1102fa diff --git a/gnulib/lib/rijndael-api-fst.h b/gnulib/lib/rijndael-api-fst.h new file mode 100644 index 00000000..218cbd2a --- /dev/null +++ b/gnulib/lib/rijndael-api-fst.h @@ -0,0 +1,207 @@ +/* rijndael-api-fst.h --- Rijndael cipher implementation. + * Copyright (C) 2005, 2009, 2010 Free Software Foundation, Inc. + * + * This file 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 2, or (at your + * option) any later version. + * + * This file 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 file; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + */ + +/* Adapted for gnulib by Simon Josefsson. */ + +/** + * rijndael-api-fst.h + * + * @version 2.9 (December 2000) + * + * Optimised ANSI C code for the Rijndael cipher (now AES) + * + * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be> + * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be> + * @author Paulo Barreto <paulo.barreto@terra.com.br> + * + * This code is hereby placed in the public domain. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Acknowledgements: + * + * We are deeply indebted to the following people for their bug reports, + * fixes, and improvement suggestions to this implementation. Though we + * tried to list all contributions, we apologise in advance for any + * missing reference. + * + * Andrew Bales <Andrew.Bales@Honeywell.com> + * Markus Friedl <markus.friedl@informatik.uni-erlangen.de> + * John Skodon <skodonj@webquill.com> + */ + +#ifndef __RIJNDAEL_API_FST_H +#define __RIJNDAEL_API_FST_H + +#include "rijndael-alg-fst.h" + +#include <stdio.h> + +/* Default number of bits in a cipher block */ +#define RIJNDAEL_BITSPERBLOCK 128 + +/* Number of ASCII char's needed to represent a key */ +#define RIJNDAEL_MAX_KEY_SIZE 64 + +/* Number bytes needed to represent an IV */ +#define RIJNDAEL_MAX_IV_SIZE 16 + +typedef enum +{ + /* Key direction is invalid, e.g., unknown value */ + RIJNDAEL_BAD_KEY_DIR = -1, + /* Key material not of correct length */ + RIJNDAEL_BAD_KEY_MAT = -2, + /* Key passed is not valid */ + RIJNDAEL_BAD_KEY_INSTANCE = -3, + /* Params struct passed to cipherInit invalid */ + RIJNDAEL_BAD_CIPHER_MODE = -4, + /* Cipher in wrong state (e.g., not initialized) */ + RIJNDAEL_BAD_CIPHER_STATE = -5, + RIJNDAEL_BAD_BLOCK_LENGTH = -6, + RIJNDAEL_BAD_CIPHER_INSTANCE = -7, + /* Data contents are invalid, e.g., invalid padding */ + RIJNDAEL_BAD_DATA = -8, + /* Unknown error */ + RIJNDAEL_BAD_OTHER = -9 +} rijndael_rc; + +typedef enum +{ + RIJNDAEL_DIR_ENCRYPT = 0, /* Are we encrypting? */ + RIJNDAEL_DIR_DECRYPT = 1 /* Are we decrypting? */ +} rijndael_direction; + +typedef enum +{ + RIJNDAEL_MODE_ECB = 1, /* Are we ciphering in ECB mode? */ + RIJNDAEL_MODE_CBC = 2, /* Are we ciphering in CBC mode? */ + RIJNDAEL_MODE_CFB1 = 3 /* Are we ciphering in 1-bit CFB mode? */ +} rijndael_mode; + +/* The structure for key information */ +typedef struct +{ + /* Key used for encrypting or decrypting? */ + rijndael_direction direction; + /* Length of the key */ + size_t keyLen; + /* Raw key data in ASCII, e.g., user input or KAT values */ + char keyMaterial[RIJNDAEL_MAX_KEY_SIZE + 1]; + /* key-length-dependent number of rounds */ + int Nr; + /* key schedule */ + uint32_t rk[4 * (RIJNDAEL_MAXNR + 1)]; + /* CFB1 key schedule (encryption only) */ + uint32_t ek[4 * (RIJNDAEL_MAXNR + 1)]; +} rijndaelKeyInstance; + +/* The structure for cipher information */ +typedef struct +{ /* changed order of the components */ + rijndael_mode mode; /* MODE_ECB, MODE_CBC, or MODE_CFB1 */ + /* A possible Initialization Vector for ciphering */ + char IV[RIJNDAEL_MAX_IV_SIZE]; +} rijndaelCipherInstance; + +/* Function prototypes */ + +/* Create KEY, for encryption or decryption depending on DIRECTION, + from KEYMATERIAL, a hex string, of KEYLEN size. KEYLEN should be + 128, 192 or 256. Returns 0 on success, or an error code. */ +extern rijndael_rc +rijndaelMakeKey (rijndaelKeyInstance *key, rijndael_direction direction, + size_t keyLen, const char *keyMaterial); + +/* Initialize cipher state CIPHER for encryption MODE (e.g., + RIJNDAEL_MODE_CBC) with initialization vector IV, a hex string of + 2*RIJNDAEL_MAX_IV_SIZE length. IV may be NULL for modes that do + not need an IV (i.e., RIJNDAEL_MODE_ECB). */ +extern rijndael_rc +rijndaelCipherInit (rijndaelCipherInstance *cipher, + rijndael_mode mode, const char *IV); + +/* Encrypt data in INPUT, of INPUTLEN/8 bytes length, placing the + output in the pre-allocated OUTBUFFER which must hold at least + INPUTLEN/8 bytes of data. The CIPHER is used as state, and must be + initialized with rijndaelCipherInit before calling this function. + The encryption KEY must be initialized with rijndaelMakeKey before + calling this function. Return the number of bits written, or a + negative rijndael_rc error code. */ +extern int +rijndaelBlockEncrypt (rijndaelCipherInstance *cipher, + const rijndaelKeyInstance *key, + const char *input, size_t inputLen, + char *outBuffer); + +/* Encrypt data in INPUT, of INPUTOCTETS bytes length, placing the + output in the pre-allocated OUTBUFFER which must hold at least + INPUTOCTETS aligned to the next block size boundary. + Ciphertext-Stealing as described in RFC 2040 is used to encrypt + partial blocks. The CIPHER is used as state, and must be + initialized with rijndaelCipherInit before calling this function. + The encryption KEY must be initialized with rijndaelMakeKey before + calling this function. Return the number of bits written, or a + negative rijndael_rc error code. */ +extern int +rijndaelPadEncrypt (rijndaelCipherInstance *cipher, + const rijndaelKeyInstance *key, + const char *input, size_t inputOctets, + char *outBuffer); + +/* Decrypt data in INPUT, of INPUTLEN/8 bytes length, placing the + output in the pre-allocated OUTBUFFER which must hold at least + INPUTLEN/8 bytes of data. The CIPHER is used as state, and must be + initialized with rijndaelCipherInit before calling this function. + The encryption KEY must be initialized with rijndaelMakeKey before + calling this function. Return the number of bits written, or a + negative rijndael_rc error code. */ +extern int +rijndaelBlockDecrypt (rijndaelCipherInstance *cipher, + const rijndaelKeyInstance *key, + const char *input, size_t inputLen, + char *outBuffer); + +/* Decrypt data in INPUT, of INPUTOCTETS bytes length, placing the + output in the pre-allocated OUTBUFFER which must hold at least + INPUTOCTETS aligned to the next block size boundary. + Ciphertext-Stealing as described in RFC 2040 is used to encrypt + partial blocks. The CIPHER is used as state, and must be + initialized with rijndaelCipherInit before calling this function. + The encryption KEY must be initialized with rijndaelMakeKey before + calling this function. Return the number of bits written, or a + negative rijndael_rc error code. */ +extern int +rijndaelPadDecrypt (rijndaelCipherInstance *cipher, + const rijndaelKeyInstance *key, + const char *input, size_t inputOctets, + char *outBuffer); + +#endif /* __RIJNDAEL_API_FST_H */ |