/* Legal Notice: Some portions of the source code contained in this file were derived from the source code of Encryption for the Masses 2.02a, which is Copyright (c) 1998-2000 Paul Le Roux and which is governed by the 'License Agreement for Encryption for the Masses'. Modifications and additions to the original source code (contained in this file) and all other portions of this file are Copyright (c) 2003-2010 TrueCrypt Developers Association and are governed by the TrueCrypt License 3.0 the full text of which is contained in the file License.txt included in TrueCrypt binary and source code distribution packages. */ #ifndef TCDEFS_H #define TCDEFS_H #define TC_APP_NAME "VeraCrypt" // Version displayed to user #define VERSION_STRING "1.0f-1" // Version number to compare against driver #define VERSION_NUM 0x0110 // Release date #define TC_STR_RELEASE_DATE "January 4, 2015" #define TC_RELEASE_DATE_YEAR 2015 #define TC_RELEASE_DATE_MONTH 01 #define BYTES_PER_KB 1024LL #define BYTES_PER_MB 1048576LL #define BYTES_PER_GB 1073741824LL #define BYTES_PER_TB 1099511627776LL #define BYTES_PER_PB 1125899906842624LL /* GUI/driver errors */ #define WIDE(x) (LPWSTR)L##x #ifdef _MSC_VER typedef __int8 int8; typedef __int16 int16; typedef __int32 int32; typedef unsigned __int8 byte; typedef unsigned __int16 uint16; typedef unsigned __int32 uint32; #ifdef TC_NO_COMPILER_INT64 typedef unsigned __int32 TC_LARGEST_COMPILER_UINT; #else typedef unsigned __int64 TC_LARGEST_COMPILER_UINT; typedef __int64 int64; typedef unsigned __int64 uint64; #endif #else // !_MSC_VER #include #include typedef int8_t int8; typedef int16_t int16; typedef int32_t int32; typedef int64_t int64; typedef uint8_t byte; typedef uint16_t uint16; typedef uint32_t uint32; typedef uint64_t uint64; #if UCHAR_MAX != 0xffU #error UCHAR_MAX != 0xff #endif #define __int8 char #if USHRT_MAX != 0xffffU #error USHRT_MAX != 0xffff #endif #define __int16 short #if UINT_MAX != 0xffffffffU #error UINT_MAX != 0xffffffff #endif #define __int32 int typedef uint64 TC_LARGEST_COMPILER_UINT; #define BOOL int #ifndef FALSE #define FALSE 0 #define TRUE 1 #endif #endif // !_MSC_VER #define TC_INT_TYPES_DEFINED // Integer types required by Cryptolib typedef unsigned __int8 uint_8t; typedef unsigned __int16 uint_16t; typedef unsigned __int32 uint_32t; #ifndef TC_NO_COMPILER_INT64 typedef uint64 uint_64t; #endif typedef union { struct { unsigned __int32 LowPart; unsigned __int32 HighPart; }; #ifndef TC_NO_COMPILER_INT64 uint64 Value; #endif } UINT64_STRUCT; #ifdef TC_WINDOWS_BOOT # ifdef __cplusplus extern "C" # endif void ThrowFatalException (int line); # define TC_THROW_FATAL_EXCEPTION ThrowFatalException (__LINE__) #elif defined (TC_WINDOWS_DRIVER) # define TC_THROW_FATAL_EXCEPTION KeBugCheckEx (SECURITY_SYSTEM, __LINE__, 0, 0, 'VC') #else # define TC_THROW_FATAL_EXCEPTION *(char *) 0 = 0 #endif #ifdef TC_WINDOWS_DRIVER #include #include /* Standard header file for nt drivers */ #include /* Standard I/O control codes */ #define TCalloc(size) ((void *) ExAllocatePoolWithTag( NonPagedPool, size, 'MMCV' )) #define TCfree(memblock) ExFreePoolWithTag( memblock, 'MMCV' ) #define DEVICE_DRIVER #ifndef BOOL typedef int BOOL; #endif #ifndef TRUE #define TRUE 1 #endif #ifndef FALSE #define FALSE !TRUE #endif #else /* !TC_WINDOWS_DRIVER */ #define TCalloc malloc #define TCfree free #ifdef _WIN32 #ifndef TC_LOCAL_WIN32_WINNT_OVERRIDE # undef _WIN32_WINNT # define _WIN32_WINNT 0x0501 /* Does not apply to the driver */ #endif #include /* Windows header */ #include /* The common controls */ #include /* Process control */ #include #include /* For sprintf */ #endif /* _WIN32 */ #endif /* !TC_WINDOWS_DRIVER */ #ifndef TC_TO_STRING # define TC_TO_STRING2(n) #n # define TC_TO_STRING(n) TC_TO_STRING2(n) #endif #ifdef DEVICE_DRIVER # if defined (DEBUG) || 0 # if 1 // DbgPrintEx is not available on Windows 2000 # define Dump DbgPrint # else # define Dump(...) DbgPrintEx (DPFLTR_IHVDRIVER_ID, DPFLTR_ERROR_LEVEL, __VA_ARGS__) # endif # define DumpMem(...) DumpMemory (__VA_ARGS__) # else # define Dump(...) # define DumpMem(...) # endif #endif #if !defined (trace_msg) && !defined (TC_WINDOWS_BOOT) # ifdef DEBUG # ifdef DEVICE_DRIVER # define trace_msg Dump # elif defined (_WIN32) # define trace_msg(...) do { char msg[2048]; StringCbPrintfA (msg, sizeof (msg), __VA_ARGS__); OutputDebugString (msg); } while (0) # endif # define trace_point trace_msg (__FUNCTION__ ":" TC_TO_STRING(__LINE__) "\n") # else # define trace_msg(...) # define trace_point # endif #endif #ifdef DEVICE_DRIVER # define TC_EVENT KEVENT # define TC_WAIT_EVENT(EVENT) KeWaitForSingleObject (&EVENT, Executive, KernelMode, FALSE, NULL) #elif defined (_WIN32) # define TC_EVENT HANDLE # define TC_WAIT_EVENT(EVENT) WaitForSingleObject (EVENT, INFINITE) #endif #ifdef _WIN32 #define burn(mem,size) do { volatile char *burnm = (volatile char *)(mem); int burnc = size; RtlSecureZeroMemory (mem, size); while (burnc--) *burnm++ = 0; } while (0) #else #define burn(mem,size) do { volatile char *burnm = (volatile char *)(mem); int burnc = size; while (burnc--) *burnm++ = 0; } while (0) #endif // The size of the memory area to wipe is in bytes amd it must be a multiple of 8. #ifndef TC_NO_COMPILER_INT64 # define FAST_ERASE64(mem,size) do { volatile uint64 *burnm = (volatile uint64 *)(mem); int burnc = size >> 3; while (burnc--) *burnm++ = 0; } while (0) #else # define FAST_ERASE64(mem,size) do { volatile unsigned __int32 *burnm = (volatile unsigned __int32 *)(mem); int burnc = size >> 2; while (burnc--) *burnm++ = 0; } while (0) #endif #ifdef TC_WINDOWS_BOOT # ifndef max # define max(a,b) (((a) > (b)) ? (a) : (b)) # endif # ifdef __cplusplus extern "C" # endif void EraseMemory (void *memory, int size); # undef burn # define burn EraseMemory #endif #ifdef MAX_PATH #define TC_MAX_PATH MAX_PATH #else #define TC_MAX_PATH 260 /* Includes the null terminator */ #endif #define TC_STR_RELEASED_BY "Released by IDRIX on " TC_STR_RELEASE_DATE #define MAX_URL_LENGTH 2084 /* Internet Explorer limit. Includes the terminating null character. */ #define TC_HOMEPAGE "http://www.idrix.fr/" #define TC_APPLINK "https://veracrypt.codeplex.com" #define TC_APPLINK_SECURE "https://veracrypt.codeplex.com" enum { /* WARNING: ADD ANY NEW CODES AT THE END (DO NOT INSERT THEM BETWEEN EXISTING). DO *NOT* DELETE ANY EXISTING CODES! Changing these values or their meanings may cause incompatibility with other versions (for example, if a new version of the TrueCrypt installer receives an error code from an installed driver whose version is lower, it will report and interpret the error incorrectly). */ ERR_SUCCESS = 0, ERR_OS_ERROR = 1, ERR_OUTOFMEMORY = 2, ERR_PASSWORD_WRONG = 3, ERR_VOL_FORMAT_BAD = 4, ERR_DRIVE_NOT_FOUND = 5, ERR_FILES_OPEN = 6, ERR_VOL_SIZE_WRONG = 7, ERR_COMPRESSION_NOT_SUPPORTED = 8, ERR_PASSWORD_CHANGE_VOL_TYPE = 9, ERR_PASSWORD_CHANGE_VOL_VERSION = 10, ERR_VOL_SEEKING = 11, ERR_VOL_WRITING = 12, ERR_FILES_OPEN_LOCK = 13, ERR_VOL_READING = 14, ERR_DRIVER_VERSION = 15, ERR_NEW_VERSION_REQUIRED = 16, ERR_CIPHER_INIT_FAILURE = 17, ERR_CIPHER_INIT_WEAK_KEY = 18, ERR_SELF_TESTS_FAILED = 19, ERR_SECTOR_SIZE_INCOMPATIBLE = 20, ERR_VOL_ALREADY_MOUNTED = 21, ERR_NO_FREE_DRIVES = 22, ERR_FILE_OPEN_FAILED = 23, ERR_VOL_MOUNT_FAILED = 24, DEPRECATED_ERR_INVALID_DEVICE = 25, ERR_ACCESS_DENIED = 26, ERR_MODE_INIT_FAILED = 27, ERR_DONT_REPORT = 28, ERR_ENCRYPTION_NOT_COMPLETED = 29, ERR_PARAMETER_INCORRECT = 30, ERR_SYS_HIDVOL_HEAD_REENC_MODE_WRONG = 31, ERR_NONSYS_INPLACE_ENC_INCOMPLETE = 32, ERR_USER_ABORT = 33, ERR_UNSUPPORTED_TRUECRYPT_FORMAT = 34 }; #endif // #ifndef TCDEFS_H ' href='#n159'>159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 
/*
 ---------------------------------------------------------------------------
 Copyright (c) 1998-2007, Brian Gladman, Worcester, UK. All rights reserved.

 LICENSE TERMS

 The free distribution and use of this software is allowed (with or without
 changes) provided that:

  1. source code distributions include the above copyright notice, this
     list of conditions and the following disclaimer;

  2. binary distributions include the above copyright notice, this list
     of conditions and the following disclaimer in their documentation;

  3. the name of the copyright holder is not used to endorse products
     built using this software without specific written permission.

 DISCLAIMER

 This software is provided 'as is' with no explicit or implied warranties
 in respect of its properties, including, but not limited to, correctness
 and/or fitness for purpose.
 ---------------------------------------------------------------------------
 Issue Date: 20/12/2007
*/

#include "Aesopt.h"
#include "Aestab.h"

#ifdef USE_VIA_ACE_IF_PRESENT
#  include "aes_via_ace.h"
#endif

#if defined(__cplusplus)
extern "C"
{
#endif

/* Initialise the key schedule from the user supplied key. The key
   length can be specified in bytes, with legal values of 16, 24
   and 32, or in bits, with legal values of 128, 192 and 256. These
   values correspond with Nk values of 4, 6 and 8 respectively.

   The following macros implement a single cycle in the key
   schedule generation process. The number of cycles needed
   for each cx->n_col and nk value is:

    nk =             4  5  6  7  8
    ------------------------------
    cx->n_col = 4   10  9  8  7  7
    cx->n_col = 5   14 11 10  9  9
    cx->n_col = 6   19 15 12 11 11
    cx->n_col = 7   21 19 16 13 14
    cx->n_col = 8   29 23 19 17 14
*/

#if (FUNCS_IN_C & ENC_KEYING_IN_C)

#if defined(AES_128) || defined(AES_VAR)

#define ke4(k,i) \
{   k[4*(i)+4] = ss[0] ^= ls_box(ss[3],3) ^ t_use(r,c)[i]; \
    k[4*(i)+5] = ss[1] ^= ss[0]; \
    k[4*(i)+6] = ss[2] ^= ss[1]; \
    k[4*(i)+7] = ss[3] ^= ss[2]; \
}

AES_RETURN aes_encrypt_key128(const unsigned char *key, aes_encrypt_ctx cx[1])
{   uint_32t    ss[4];

    cx->ks[0] = ss[0] = word_in(key, 0);
    cx->ks[1] = ss[1] = word_in(key, 1);
    cx->ks[2] = ss[2] = word_in(key, 2);
    cx->ks[3] = ss[3] = word_in(key, 3);

#if ENC_UNROLL == NONE
    {   uint_32t i;
        for(i = 0; i < 9; ++i)
            ke4(cx->ks, i);
    }
#else
    ke4(cx->ks, 0);  ke4(cx->ks, 1);
    ke4(cx->ks, 2);  ke4(cx->ks, 3);
    ke4(cx->ks, 4);  ke4(cx->ks, 5);
    ke4(cx->ks, 6);  ke4(cx->ks, 7);
    ke4(cx->ks, 8);
#endif
    ke4(cx->ks, 9);
    cx->inf.l = 0;
    cx->inf.b[0] = 10 * 16;

#ifdef USE_VIA_ACE_IF_PRESENT
    if(VIA_ACE_AVAILABLE)
        cx->inf.b[1] = 0xff;
#endif

#if defined( AES_ERR_CHK )
    return EXIT_SUCCESS;
#endif
}

#endif

#if defined(AES_192) || defined(AES_VAR)

#define kef6(k,i) \
{   k[6*(i)+ 6] = ss[0] ^= ls_box(ss[5],3) ^ t_use(r,c)[i]; \
    k[6*(i)+ 7] = ss[1] ^= ss[0]; \
    k[6*(i)+ 8] = ss[2] ^= ss[1]; \
    k[6*(i)+ 9] = ss[3] ^= ss[2]; \
}

#define ke6(k,i) \
{   kef6(k,i); \
    k[6*(i)+10] = ss[4] ^= ss[3]; \
    k[6*(i)+11] = ss[5] ^= ss[4]; \
}

AES_RETURN aes_encrypt_key192(const unsigned char *key, aes_encrypt_ctx cx[1])
{   uint_32t    ss[6];

    cx->ks[0] = ss[0] = word_in(key, 0);
    cx->ks[1] = ss[1] = word_in(key, 1);
    cx->ks[2] = ss[2] = word_in(key, 2);
    cx->ks[3] = ss[3] = word_in(key, 3);
    cx->ks[4] = ss[4] = word_in(key, 4);
    cx->ks[5] = ss[5] = word_in(key, 5);

#if ENC_UNROLL == NONE
    {   uint_32t i;
        for(i = 0; i < 7; ++i)
            ke6(cx->ks, i);
    }
#else
    ke6(cx->ks, 0);  ke6(cx->ks, 1);
    ke6(cx->ks, 2);  ke6(cx->ks, 3);
    ke6(cx->ks, 4);  ke6(cx->ks, 5);
    ke6(cx->ks, 6);
#endif
    kef6(cx->ks, 7);
    cx->inf.l = 0;
    cx->inf.b[0] = 12 * 16;

#ifdef USE_VIA_ACE_IF_PRESENT
    if(VIA_ACE_AVAILABLE)
        cx->inf.b[1] = 0xff;
#endif

#if defined( AES_ERR_CHK )
    return EXIT_SUCCESS;
#endif
}

#endif

#if defined(AES_256) || defined(AES_VAR)

#define kef8(k,i) \
{   k[8*(i)+ 8] = ss[0] ^= ls_box(ss[7],3) ^ t_use(r,c)[i]; \
    k[8*(i)+ 9] = ss[1] ^= ss[0]; \
    k[8*(i)+10] = ss[2] ^= ss[1]; \
    k[8*(i)+11] = ss[3] ^= ss[2]; \
}

#define ke8(k,i) \
{   kef8(k,i); \
    k[8*(i)+12] = ss[4] ^= ls_box(ss[3],0); \
    k[8*(i)+13] = ss[5] ^= ss[4]; \
    k[8*(i)+14] = ss[6] ^= ss[5]; \
    k[8*(i)+15] = ss[7] ^= ss[6]; \
}

AES_RETURN aes_encrypt_key256(const unsigned char *key, aes_encrypt_ctx cx[1])
{   uint_32t    ss[8];

    cx->ks[0] = ss[0] = word_in(key, 0);
    cx->ks[1] = ss[1] = word_in(key, 1);
    cx->ks[2] = ss[2] = word_in(key, 2);
    cx->ks[3] = ss[3] = word_in(key, 3);
    cx->ks[4] = ss[4] = word_in(key, 4);
    cx->ks[5] = ss[5] = word_in(key, 5);
    cx->ks[6] = ss[6] = word_in(key, 6);
    cx->ks[7] = ss[7] = word_in(key, 7);

#if ENC_UNROLL == NONE
    {   uint_32t i;
        for(i = 0; i < 6; ++i)
            ke8(cx->ks,  i);
    }
#else
    ke8(cx->ks, 0); ke8(cx->ks, 1);
    ke8(cx->ks, 2); ke8(cx->ks, 3);
    ke8(cx->ks, 4); ke8(cx->ks, 5);
#endif
    kef8(cx->ks, 6);
    cx->inf.l = 0;
    cx->inf.b[0] = 14 * 16;

#ifdef USE_VIA_ACE_IF_PRESENT
    if(VIA_ACE_AVAILABLE)
        cx->inf.b[1] = 0xff;
#endif

#if defined( AES_ERR_CHK )
    return EXIT_SUCCESS;
#endif
}

#endif

#if defined(AES_VAR)

AES_RETURN aes_encrypt_key(const unsigned char *key, int key_len, aes_encrypt_ctx cx[1])
{
    switch(key_len)
    {
#if defined( AES_ERR_CHK )
    case 16: case 128: return aes_encrypt_key128(key, cx);
    case 24: case 192: return aes_encrypt_key192(key, cx);
    case 32: case 256: return aes_encrypt_key256(key, cx);
    default: return EXIT_FAILURE;
#else
    case 16: case 128: aes_encrypt_key128(key, cx); return;
    case 24: case 192: aes_encrypt_key192(key, cx); return;
    case 32: case 256: aes_encrypt_key256(key, cx); return;
#endif
    }
}

#endif

#endif

#if (FUNCS_IN_C & DEC_KEYING_IN_C)

/* this is used to store the decryption round keys  */
/* in forward or reverse order                      */

#ifdef AES_REV_DKS
#define v(n,i)  ((n) - (i) + 2 * ((i) & 3))
#else
#define v(n,i)  (i)
#endif

#if DEC_ROUND == NO_TABLES
#define ff(x)   (x)
#else
#define ff(x)   inv_mcol(x)
#if defined( dec_imvars )
#define d_vars  dec_imvars
#endif
#endif

#if defined(AES_128) || defined(AES_VAR)

#define k4e(k,i) \
{   k[v(40,(4*(i))+4)] = ss[0] ^= ls_box(ss[3],3) ^ t_use(r,c)[i]; \
    k[v(40,(4*(i))+5)] = ss[1] ^= ss[0]; \
    k[v(40,(4*(i))+6)] = ss[2] ^= ss[1]; \
    k[v(40,(4*(i))+7)] = ss[3] ^= ss[2]; \
}

#if 1

#define kdf4(k,i) \
{   ss[0] = ss[0] ^ ss[2] ^ ss[1] ^ ss[3]; \
    ss[1] = ss[1] ^ ss[3]; \
    ss[2] = ss[2] ^ ss[3]; \
    ss[4] = ls_box(ss[(i+3) % 4], 3) ^ t_use(r,c)[i]; \
    ss[i % 4] ^= ss[4]; \
    ss[4] ^= k[v(40,(4*(i)))];   k[v(40,(4*(i))+4)] = ff(ss[4]); \
    ss[4] ^= k[v(40,(4*(i))+1)]; k[v(40,(4*(i))+5)] = ff(ss[4]); \
    ss[4] ^= k[v(40,(4*(i))+2)]; k[v(40,(4*(i))+6)] = ff(ss[4]); \
    ss[4] ^= k[v(40,(4*(i))+3)]; k[v(40,(4*(i))+7)] = ff(ss[4]); \
}

#define kd4(k,i) \
{   ss[4] = ls_box(ss[(i+3) % 4], 3) ^ t_use(r,c)[i]; \
    ss[i % 4] ^= ss[4]; ss[4] = ff(ss[4]); \
    k[v(40,(4*(i))+4)] = ss[4] ^= k[v(40,(4*(i)))]; \
    k[v(40,(4*(i))+5)] = ss[4] ^= k[v(40,(4*(i))+1)]; \
    k[v(40,(4*(i))+6)] = ss[4] ^= k[v(40,(4*(i))+2)]; \
    k[v(40,(4*(i))+7)] = ss[4] ^= k[v(40,(4*(i))+3)]; \
}

#define kdl4(k,i) \
{   ss[4] = ls_box(ss[(i+3) % 4], 3) ^ t_use(r,c)[i]; ss[i % 4] ^= ss[4]; \
    k[v(40,(4*(i))+4)] = (ss[0] ^= ss[1]) ^ ss[2] ^ ss[3]; \
    k[v(40,(4*(i))+5)] = ss[1] ^ ss[3]; \
    k[v(40,(4*(i))+6)] = ss[0]; \
    k[v(40,(4*(i))+7)] = ss[1]; \
}

#else

#define kdf4(k,i) \
{   ss[0] ^= ls_box(ss[3],3) ^ t_use(r,c)[i]; k[v(40,(4*(i))+ 4)] = ff(ss[0]); \
    ss[1] ^= ss[0]; k[v(40,(4*(i))+ 5)] = ff(ss[1]); \
    ss[2] ^= ss[1]; k[v(40,(4*(i))+ 6)] = ff(ss[2]); \
    ss[3] ^= ss[2]; k[v(40,(4*(i))+ 7)] = ff(ss[3]); \
}

#define kd4(k,i) \
{   ss[4] = ls_box(ss[3],3) ^ t_use(r,c)[i]; \
    ss[0] ^= ss[4]; ss[4] = ff(ss[4]); k[v(40,(4*(i))+ 4)] = ss[4] ^= k[v(40,(4*(i)))]; \
    ss[1] ^= ss[0]; k[v(40,(4*(i))+ 5)] = ss[4] ^= k[v(40,(4*(i))+ 1)]; \
    ss[2] ^= ss[1]; k[v(40,(4*(i))+ 6)] = ss[4] ^= k[v(40,(4*(i))+ 2)]; \
    ss[3] ^= ss[2]; k[v(40,(4*(i))+ 7)] = ss[4] ^= k[v(40,(4*(i))+ 3)]; \
}

#define kdl4(k,i) \
{   ss[0] ^= ls_box(ss[3],3) ^ t_use(r,c)[i]; k[v(40,(4*(i))+ 4)] = ss[0]; \
    ss[1] ^= ss[0]; k[v(40,(4*(i))+ 5)] = ss[1]; \
    ss[2] ^= ss[1]; k[v(40,(4*(i))+ 6)] = ss[2]; \
    ss[3] ^= ss[2]; k[v(40,(4*(i))+ 7)] = ss[3]; \
}

#endif

AES_RETURN aes_decrypt_key128(const unsigned char *key, aes_decrypt_ctx cx[1])
{   uint_32t    ss[5];
#if defined( d_vars )
        d_vars;
#endif
    cx->ks[v(40,(0))] = ss[0] = word_in(key, 0);
    cx->ks[v(40,(1))] = ss[1] = word_in(key, 1);
    cx->ks[v(40,(2))] = ss[2] = word_in(key, 2);
    cx->ks[v(40,(3))] = ss[3] = word_in(key, 3);

#if DEC_UNROLL == NONE
    {   uint_32t i;
        for(i = 0; i < 10; ++i)
            k4e(cx->ks, i);
#if !(DEC_ROUND == NO_TABLES)
        for(i = N_COLS; i < 10 * N_COLS; ++i)
            cx->ks[i] = inv_mcol(cx->ks[i]);
#endif
    }
#else
    kdf4(cx->ks, 0);  kd4(cx->ks, 1);
     kd4(cx->ks, 2);  kd4(cx->ks, 3);
     kd4(cx->ks, 4);  kd4(cx->ks, 5);
     kd4(cx->ks, 6);  kd4(cx->ks, 7);
     kd4(cx->ks, 8); kdl4(cx->ks, 9);
#endif
    cx->inf.l = 0;
    cx->inf.b[0] = 10 * 16;

#ifdef USE_VIA_ACE_IF_PRESENT
    if(VIA_ACE_AVAILABLE)
        cx->inf.b[1] = 0xff;
#endif

#if defined( AES_ERR_CHK )
    return EXIT_SUCCESS;
#endif
}

#endif

#if defined(AES_192) || defined(AES_VAR)

#define k6ef(k,i) \
{   k[v(48,(6*(i))+ 6)] = ss[0] ^= ls_box(ss[5],3) ^ t_use(r,c)[i]; \
    k[v(48,(6*(i))+ 7)] = ss[1] ^= ss[0]; \
    k[v(48,(6*(i))+ 8)] = ss[2] ^= ss[1]; \
    k[v(48,(6*(i))+ 9)] = ss[3] ^= ss[2]; \
}

#define k6e(k,i) \
{   k6ef(k,i); \
    k[v(48,(6*(i))+10)] = ss[4] ^= ss[3]; \
    k[v(48,(6*(i))+11)] = ss[5] ^= ss[4]; \
}

#define kdf6(k,i) \
{   ss[0] ^= ls_box(ss[5],3) ^ t_use(r,c)[i]; k[v(48,(6*(i))+ 6)] = ff(ss[0]); \
    ss[1] ^= ss[0]; k[v(48,(6*(i))+ 7)] = ff(ss[1]); \
    ss[2] ^= ss[1]; k[v(48,(6*(i))+ 8)] = ff(ss[2]); \
    ss[3] ^= ss[2]; k[v(48,(6*(i))+ 9)] = ff(ss[3]); \
    ss[4] ^= ss[3]; k[v(48,(6*(i))+10)] = ff(ss[4]); \
    ss[5] ^= ss[4]; k[v(48,(6*(i))+11)] = ff(ss[5]); \
}

#define kd6(k,i) \
{   ss[6] = ls_box(ss[5],3) ^ t_use(r,c)[i]; \
    ss[0] ^= ss[6]; ss[6] = ff(ss[6]); k[v(48,(6*(i))+ 6)] = ss[6] ^= k[v(48,(6*(i)))]; \
    ss[1] ^= ss[0]; k[v(48,(6*(i))+ 7)] = ss[6] ^= k[v(48,(6*(i))+ 1)]; \
    ss[2] ^= ss[1]; k[v(48,(6*(i))+ 8)] = ss[6] ^= k[v(48,(6*(i))+ 2)]; \
    ss[3] ^= ss[2]; k[v(48,(6*(i))+ 9)] = ss[6] ^= k[v(48,(6*(i))+ 3)]; \
    ss[4] ^= ss[3]; k[v(48,(6*(i))+10)] = ss[6] ^= k[v(48,(6*(i))+ 4)]; \
    ss[5] ^= ss[4]; k[v(48,(6*(i))+11)] = ss[6] ^= k[v(48,(6*(i))+ 5)]; \
}

#define kdl6(k,i) \
{   ss[0] ^= ls_box(ss[5],3) ^ t_use(r,c)[i]; k[v(48,(6*(i))+ 6)] = ss[0]; \
    ss[1] ^= ss[0]; k[v(48,(6*(i))+ 7)] = ss[1]; \
    ss[2] ^= ss[1]; k[v(48,(6*(i))+ 8)] = ss[2]; \
    ss[3] ^= ss[2]; k[v(48,(6*(i))+ 9)] = ss[3]; \
}

AES_RETURN aes_decrypt_key192(const unsigned char *key, aes_decrypt_ctx cx[1])
{   uint_32t    ss[7];
#if defined( d_vars )
        d_vars;
#endif
    cx->ks[v(48,(0))] = ss[0] = word_in(key, 0);
    cx->ks[v(48,(1))] = ss[1] = word_in(key, 1);
    cx->ks[v(48,(2))] = ss[2] = word_in(key, 2);
    cx->ks[v(48,(3))] = ss[3] = word_in(key, 3);

#if DEC_UNROLL == NONE
    cx->ks[v(48,(4))] = ss[4] = word_in(key, 4);
    cx->ks[v(48,(5))] = ss[5] = word_in(key, 5);
    {   uint_32t i;

        for(i = 0; i < 7; ++i)
            k6e(cx->ks, i);
        k6ef(cx->ks, 7);
#if !(DEC_ROUND == NO_TABLES)
        for(i = N_COLS; i < 12 * N_COLS; ++i)
            cx->ks[i] = inv_mcol(cx->ks[i]);
#endif
    }
#else
    cx->ks[v(48,(4))] = ff(ss[4] = word_in(key, 4));
    cx->ks[v(48,(5))] = ff(ss[5] = word_in(key, 5));
    kdf6(cx->ks, 0); kd6(cx->ks, 1);
    kd6(cx->ks, 2);  kd6(cx->ks, 3);
    kd6(cx->ks, 4);  kd6(cx->ks, 5);
    kd6(cx->ks, 6); kdl6(cx->ks, 7);
#endif
    cx->inf.l = 0;
    cx->inf.b[0] = 12 * 16;

#ifdef USE_VIA_ACE_IF_PRESENT
    if(VIA_ACE_AVAILABLE)
        cx->inf.b[1] = 0xff;
#endif

#if defined( AES_ERR_CHK )
    return EXIT_SUCCESS;
#endif
}

#endif

#if defined(AES_256) || defined(AES_VAR)

#define k8ef(k,i) \
{   k[v(56,(8*(i))+ 8)] = ss[0] ^= ls_box(ss[7],3) ^ t_use(r,c)[i]; \
    k[v(56,(8*(i))+ 9)] = ss[1] ^= ss[0]; \
    k[v(56,(8*(i))+10)] = ss[2] ^= ss[1]; \
    k[v(56,(8*(i))+11)] = ss[3] ^= ss[2]; \
}

#define k8e(k,i) \
{   k8ef(k,i); \
    k[v(56,(8*(i))+12)] = ss[4] ^= ls_box(ss[3],0); \
    k[v(56,(8*(i))+13)] = ss[5] ^= ss[4]; \
    k[v(56,(8*(i))+14)] = ss[6] ^= ss[5]; \
    k[v(56,(8*(i))+15)] = ss[7] ^= ss[6]; \
}

#define kdf8(k,i) \
{   ss[0] ^= ls_box(ss[7],3) ^ t_use(r,c)[i]; k[v(56,(8*(i))+ 8)] = ff(ss[0]); \
    ss[1] ^= ss[0]; k[v(56,(8*(i))+ 9)] = ff(ss[1]); \
    ss[2] ^= ss[1]; k[v(56,(8*(i))+10)] = ff(ss[2]); \
    ss[3] ^= ss[2]; k[v(56,(8*(i))+11)] = ff(ss[3]); \
    ss[4] ^= ls_box(ss[3],0); k[v(56,(8*(i))+12)] = ff(ss[4]); \
    ss[5] ^= ss[4]; k[v(56,(8*(i))+13)] = ff(ss[5]); \
    ss[6] ^= ss[5]; k[v(56,(8*(i))+14)] = ff(ss[6]); \
    ss[7] ^= ss[6]; k[v(56,(8*(i))+15)] = ff(ss[7]); \
}

#define kd8(k,i) \
{   ss[8] = ls_box(ss[7],3) ^ t_use(r,c)[i]; \
    ss[0] ^= ss[8]; ss[8] = ff(ss[8]); k[v(56,(8*(i))+ 8)] = ss[8] ^= k[v(56,(8*(i)))]; \
    ss[1] ^= ss[0]; k[v(56,(8*(i))+ 9)] = ss[8] ^= k[v(56,(8*(i))+ 1)]; \
    ss[2] ^= ss[1]; k[v(56,(8*(i))+10)] = ss[8] ^= k[v(56,(8*(i))+ 2)]; \
    ss[3] ^= ss[2]; k[v(56,(8*(i))+11)] = ss[8] ^= k[v(56,(8*(i))+ 3)]; \
    ss[8] = ls_box(ss[3],0); \
    ss[4] ^= ss[8]; ss[8] = ff(ss[8]); k[v(56,(8*(i))+12)] = ss[8] ^= k[v(56,(8*(i))+ 4)]; \
    ss[5] ^= ss[4]; k[v(56,(8*(i))+13)] = ss[8] ^= k[v(56,(8*(i))+ 5)]; \
    ss[6] ^= ss[5]; k[v(56,(8*(i))+14)] = ss[8] ^= k[v(56,(8*(i))+ 6)]; \
    ss[7] ^= ss[6]; k[v(56,(8*(i))+15)] = ss[8] ^= k[v(56,(8*(i))+ 7)]; \
}

#define kdl8(k,i) \
{   ss[0] ^= ls_box(ss[7],3) ^ t_use(r,c)[i]; k[v(56,(8*(i))+ 8)] = ss[0]; \
    ss[1] ^= ss[0]; k[v(56,(8*(i))+ 9)] = ss[1]; \
    ss[2] ^= ss[1]; k[v(56,(8*(i))+10)] = ss[2]; \
    ss[3] ^= ss[2]; k[v(56,(8*(i))+11)] = ss[3]; \
}

AES_RETURN aes_decrypt_key256(const unsigned char *key, aes_decrypt_ctx cx[1])
{   uint_32t    ss[9];
#if defined( d_vars )
        d_vars;
#endif
    cx->ks[v(56,(0))] = ss[0] = word_in(key, 0);
    cx->ks[v(56,(1))] = ss[1] = word_in(key, 1);
    cx->ks[v(56,(2))] = ss[2] = word_in(key, 2);
    cx->ks[v(56,(3))] = ss[3] = word_in(key, 3);

#if DEC_UNROLL == NONE
    cx->ks[v(56,(4))] = ss[4] = word_in(key, 4);
    cx->ks[v(56,(5))] = ss[5] = word_in(key, 5);
    cx->ks[v(56,(6))] = ss[6] = word_in(key, 6);
    cx->ks[v(56,(7))] = ss[7] = word_in(key, 7);
    {   uint_32t i;

        for(i = 0; i < 6; ++i)
            k8e(cx->ks,  i);
        k8ef(cx->ks,  6);
#if !(DEC_ROUND == NO_TABLES)
        for(i = N_COLS; i < 14 * N_COLS; ++i)
            cx->ks[i] = inv_mcol(cx->ks[i]);

#endif
    }
#else
    ss[4] = word_in(key, 4); cx->ks[v(56,(4))] = ff(ss[4]);
    ss[5] = word_in(key, 5); cx->ks[v(56,(5))] = ff(ss[5]);
    ss[6] = word_in(key, 6); cx->ks[v(56,(6))] = ff(ss[6]);
    ss[7] = word_in(key, 7); cx->ks[v(56,(7))] = ff(ss[7]);
    kdf8(cx->ks, 0); kd8(cx->ks, 1);
    kd8(cx->ks, 2);  kd8(cx->ks, 3);
    kd8(cx->ks, 4);  kd8(cx->ks, 5);
    kdl8(cx->ks, 6);
#endif
    cx->inf.l = 0;
    cx->inf.b[0] = 14 * 16;

#ifdef USE_VIA_ACE_IF_PRESENT
    if(VIA_ACE_AVAILABLE)
        cx->inf.b[1] = 0xff;
#endif

#if defined( AES_ERR_CHK )
    return EXIT_SUCCESS;
#endif
}

#endif

#if defined(AES_VAR)

AES_RETURN aes_decrypt_key(const unsigned char *key, int key_len, aes_decrypt_ctx cx[1])
{
    switch(key_len)
    {
#if defined( AES_ERR_CHK )
    case 16: case 128: return aes_decrypt_key128(key, cx);
    case 24: case 192: return aes_decrypt_key192(key, cx);
    case 32: case 256: return aes_decrypt_key256(key, cx);
    default: return EXIT_FAILURE;
#else
    case 16: case 128: aes_decrypt_key128(key, cx); return;
    case 24: case 192: aes_decrypt_key192(key, cx); return;
    case 32: case 256: aes_decrypt_key256(key, cx); return;
#endif
    }
}

#endif

#endif

#if defined(__cplusplus)
}
#endif