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comparison libtomcrypt/src/headers/tomcrypt_cipher.h @ 399:a707e6148060

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merge of '5fdf69ca60d1683cdd9f4c2595134bed26394834' and '6b61c50f4cf888bea302ac8fcf5dbb573b443251'
author Matt Johnston <matt@ucc.asn.au>
date Sat, 03 Feb 2007 08:20:34 +0000
parents 0cbe8f6dbf9e
children f849a5ca2efc
comparison
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394:17d097fc111c 399:a707e6148060
1 /* ---- SYMMETRIC KEY STUFF -----
2 *
3 * We put each of the ciphers scheduled keys in their own structs then we put all of
4 * the key formats in one union. This makes the function prototypes easier to use.
5 */
6 #ifdef BLOWFISH
7 struct blowfish_key {
8 ulong32 S[4][256];
9 ulong32 K[18];
10 };
11 #endif
12
13 #ifdef RC5
14 struct rc5_key {
15 int rounds;
16 ulong32 K[50];
17 };
18 #endif
19
20 #ifdef RC6
21 struct rc6_key {
22 ulong32 K[44];
23 };
24 #endif
25
26 #ifdef SAFERP
27 struct saferp_key {
28 unsigned char K[33][16];
29 long rounds;
30 };
31 #endif
32
33 #ifdef RIJNDAEL
34 struct rijndael_key {
35 ulong32 eK[60], dK[60];
36 int Nr;
37 };
38 #endif
39
40 #ifdef KSEED
41 struct kseed_key {
42 ulong32 K[32], dK[32];
43 };
44 #endif
45
46 #ifdef LTC_KASUMI
47 struct kasumi_key {
48 ulong32 KLi1[8], KLi2[8],
49 KOi1[8], KOi2[8], KOi3[8],
50 KIi1[8], KIi2[8], KIi3[8];
51 };
52 #endif
53
54 #ifdef XTEA
55 struct xtea_key {
56 unsigned long A[32], B[32];
57 };
58 #endif
59
60 #ifdef TWOFISH
61 #ifndef TWOFISH_SMALL
62 struct twofish_key {
63 ulong32 S[4][256], K[40];
64 };
65 #else
66 struct twofish_key {
67 ulong32 K[40];
68 unsigned char S[32], start;
69 };
70 #endif
71 #endif
72
73 #ifdef SAFER
74 #define SAFER_K64_DEFAULT_NOF_ROUNDS 6
75 #define SAFER_K128_DEFAULT_NOF_ROUNDS 10
76 #define SAFER_SK64_DEFAULT_NOF_ROUNDS 8
77 #define SAFER_SK128_DEFAULT_NOF_ROUNDS 10
78 #define SAFER_MAX_NOF_ROUNDS 13
79 #define SAFER_BLOCK_LEN 8
80 #define SAFER_KEY_LEN (1 + SAFER_BLOCK_LEN * (1 + 2 * SAFER_MAX_NOF_ROUNDS))
81 typedef unsigned char safer_block_t[SAFER_BLOCK_LEN];
82 typedef unsigned char safer_key_t[SAFER_KEY_LEN];
83 struct safer_key { safer_key_t key; };
84 #endif
85
86 #ifdef RC2
87 struct rc2_key { unsigned xkey[64]; };
88 #endif
89
90 #ifdef DES
91 struct des_key {
92 ulong32 ek[32], dk[32];
93 };
94
95 struct des3_key {
96 ulong32 ek[3][32], dk[3][32];
97 };
98 #endif
99
100 #ifdef CAST5
101 struct cast5_key {
102 ulong32 K[32], keylen;
103 };
104 #endif
105
106 #ifdef NOEKEON
107 struct noekeon_key {
108 ulong32 K[4], dK[4];
109 };
110 #endif
111
112 #ifdef SKIPJACK
113 struct skipjack_key {
114 unsigned char key[10];
115 };
116 #endif
117
118 #ifdef KHAZAD
119 struct khazad_key {
120 ulong64 roundKeyEnc[8 + 1];
121 ulong64 roundKeyDec[8 + 1];
122 };
123 #endif
124
125 #ifdef ANUBIS
126 struct anubis_key {
127 int keyBits;
128 int R;
129 ulong32 roundKeyEnc[18 + 1][4];
130 ulong32 roundKeyDec[18 + 1][4];
131 };
132 #endif
133
134 typedef union Symmetric_key {
135 #ifdef DES
136 struct des_key des;
137 struct des3_key des3;
138 #endif
139 #ifdef RC2
140 struct rc2_key rc2;
141 #endif
142 #ifdef SAFER
143 struct safer_key safer;
144 #endif
145 #ifdef TWOFISH
146 struct twofish_key twofish;
147 #endif
148 #ifdef BLOWFISH
149 struct blowfish_key blowfish;
150 #endif
151 #ifdef RC5
152 struct rc5_key rc5;
153 #endif
154 #ifdef RC6
155 struct rc6_key rc6;
156 #endif
157 #ifdef SAFERP
158 struct saferp_key saferp;
159 #endif
160 #ifdef RIJNDAEL
161 struct rijndael_key rijndael;
162 #endif
163 #ifdef XTEA
164 struct xtea_key xtea;
165 #endif
166 #ifdef CAST5
167 struct cast5_key cast5;
168 #endif
169 #ifdef NOEKEON
170 struct noekeon_key noekeon;
171 #endif
172 #ifdef SKIPJACK
173 struct skipjack_key skipjack;
174 #endif
175 #ifdef KHAZAD
176 struct khazad_key khazad;
177 #endif
178 #ifdef ANUBIS
179 struct anubis_key anubis;
180 #endif
181 #ifdef KSEED
182 struct kseed_key kseed;
183 #endif
184 #ifdef LTC_KASUMI
185 struct kasumi_key kasumi;
186 #endif
187 void *data;
188 } symmetric_key;
189
190 #ifdef LTC_ECB_MODE
191 /** A block cipher ECB structure */
192 typedef struct {
193 /** The index of the cipher chosen */
194 int cipher,
195 /** The block size of the given cipher */
196 blocklen;
197 /** The scheduled key */
198 symmetric_key key;
199 } symmetric_ECB;
200 #endif
201
202 #ifdef LTC_CFB_MODE
203 /** A block cipher CFB structure */
204 typedef struct {
205 /** The index of the cipher chosen */
206 int cipher,
207 /** The block size of the given cipher */
208 blocklen,
209 /** The padding offset */
210 padlen;
211 /** The current IV */
212 unsigned char IV[MAXBLOCKSIZE],
213 /** The pad used to encrypt/decrypt */
214 pad[MAXBLOCKSIZE];
215 /** The scheduled key */
216 symmetric_key key;
217 } symmetric_CFB;
218 #endif
219
220 #ifdef LTC_OFB_MODE
221 /** A block cipher OFB structure */
222 typedef struct {
223 /** The index of the cipher chosen */
224 int cipher,
225 /** The block size of the given cipher */
226 blocklen,
227 /** The padding offset */
228 padlen;
229 /** The current IV */
230 unsigned char IV[MAXBLOCKSIZE];
231 /** The scheduled key */
232 symmetric_key key;
233 } symmetric_OFB;
234 #endif
235
236 #ifdef LTC_CBC_MODE
237 /** A block cipher CBC structure */
238 typedef struct {
239 /** The index of the cipher chosen */
240 int cipher,
241 /** The block size of the given cipher */
242 blocklen;
243 /** The current IV */
244 unsigned char IV[MAXBLOCKSIZE];
245 /** The scheduled key */
246 symmetric_key key;
247 } symmetric_CBC;
248 #endif
249
250
251 #ifdef LTC_CTR_MODE
252 /** A block cipher CTR structure */
253 typedef struct {
254 /** The index of the cipher chosen */
255 int cipher,
256 /** The block size of the given cipher */
257 blocklen,
258 /** The padding offset */
259 padlen,
260 /** The mode (endianess) of the CTR, 0==little, 1==big */
261 mode;
262 /** The counter */
263 unsigned char ctr[MAXBLOCKSIZE],
264 /** The pad used to encrypt/decrypt */
265 pad[MAXBLOCKSIZE];
266 /** The scheduled key */
267 symmetric_key key;
268 } symmetric_CTR;
269 #endif
270
271
272 #ifdef LTC_LRW_MODE
273 /** A LRW structure */
274 typedef struct {
275 /** The index of the cipher chosen (must be a 128-bit block cipher) */
276 int cipher;
277
278 /** The current IV */
279 unsigned char IV[16],
280
281 /** the tweak key */
282 tweak[16],
283
284 /** The current pad, it's the product of the first 15 bytes against the tweak key */
285 pad[16];
286
287 /** The scheduled symmetric key */
288 symmetric_key key;
289
290 #ifdef LRW_TABLES
291 /** The pre-computed multiplication table */
292 unsigned char PC[16][256][16];
293 #endif
294 } symmetric_LRW;
295 #endif
296
297 #ifdef LTC_F8_MODE
298 /** A block cipher F8 structure */
299 typedef struct {
300 /** The index of the cipher chosen */
301 int cipher,
302 /** The block size of the given cipher */
303 blocklen,
304 /** The padding offset */
305 padlen;
306 /** The current IV */
307 unsigned char IV[MAXBLOCKSIZE],
308 MIV[MAXBLOCKSIZE];
309 /** Current block count */
310 ulong32 blockcnt;
311 /** The scheduled key */
312 symmetric_key key;
313 } symmetric_F8;
314 #endif
315
316
317 /** cipher descriptor table, last entry has "name == NULL" to mark the end of table */
318 extern struct ltc_cipher_descriptor {
319 /** name of cipher */
320 char *name;
321 /** internal ID */
322 unsigned char ID;
323 /** min keysize (octets) */
324 int min_key_length,
325 /** max keysize (octets) */
326 max_key_length,
327 /** block size (octets) */
328 block_length,
329 /** default number of rounds */
330 default_rounds;
331 /** Setup the cipher
332 @param key The input symmetric key
333 @param keylen The length of the input key (octets)
334 @param num_rounds The requested number of rounds (0==default)
335 @param skey [out] The destination of the scheduled key
336 @return CRYPT_OK if successful
337 */
338 int (*setup)(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
339 /** Encrypt a block
340 @param pt The plaintext
341 @param ct [out] The ciphertext
342 @param skey The scheduled key
343 @return CRYPT_OK if successful
344 */
345 int (*ecb_encrypt)(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
346 /** Decrypt a block
347 @param ct The ciphertext
348 @param pt [out] The plaintext
349 @param skey The scheduled key
350 @return CRYPT_OK if successful
351 */
352 int (*ecb_decrypt)(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
353 /** Test the block cipher
354 @return CRYPT_OK if successful, CRYPT_NOP if self-testing has been disabled
355 */
356 int (*test)(void);
357
358 /** Terminate the context
359 @param skey The scheduled key
360 */
361 void (*done)(symmetric_key *skey);
362
363 /** Determine a key size
364 @param keysize [in/out] The size of the key desired and the suggested size
365 @return CRYPT_OK if successful
366 */
367 int (*keysize)(int *keysize);
368
369 /** Accelerators **/
370 /** Accelerated ECB encryption
371 @param pt Plaintext
372 @param ct Ciphertext
373 @param blocks The number of complete blocks to process
374 @param skey The scheduled key context
375 @return CRYPT_OK if successful
376 */
377 int (*accel_ecb_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, symmetric_key *skey);
378
379 /** Accelerated ECB decryption
380 @param pt Plaintext
381 @param ct Ciphertext
382 @param blocks The number of complete blocks to process
383 @param skey The scheduled key context
384 @return CRYPT_OK if successful
385 */
386 int (*accel_ecb_decrypt)(const unsigned char *ct, unsigned char *pt, unsigned long blocks, symmetric_key *skey);
387
388 /** Accelerated CBC encryption
389 @param pt Plaintext
390 @param ct Ciphertext
391 @param blocks The number of complete blocks to process
392 @param IV The initial value (input/output)
393 @param skey The scheduled key context
394 @return CRYPT_OK if successful
395 */
396 int (*accel_cbc_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, unsigned char *IV, symmetric_key *skey);
397
398 /** Accelerated CBC decryption
399 @param pt Plaintext
400 @param ct Ciphertext
401 @param blocks The number of complete blocks to process
402 @param IV The initial value (input/output)
403 @param skey The scheduled key context
404 @return CRYPT_OK if successful
405 */
406 int (*accel_cbc_decrypt)(const unsigned char *ct, unsigned char *pt, unsigned long blocks, unsigned char *IV, symmetric_key *skey);
407
408 /** Accelerated CTR encryption
409 @param pt Plaintext
410 @param ct Ciphertext
411 @param blocks The number of complete blocks to process
412 @param IV The initial value (input/output)
413 @param mode little or big endian counter (mode=0 or mode=1)
414 @param skey The scheduled key context
415 @return CRYPT_OK if successful
416 */
417 int (*accel_ctr_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, unsigned char *IV, int mode, symmetric_key *skey);
418
419 /** Accelerated LRW
420 @param pt Plaintext
421 @param ct Ciphertext
422 @param blocks The number of complete blocks to process
423 @param IV The initial value (input/output)
424 @param tweak The LRW tweak
425 @param skey The scheduled key context
426 @return CRYPT_OK if successful
427 */
428 int (*accel_lrw_encrypt)(const unsigned char *pt, unsigned char *ct, unsigned long blocks, unsigned char *IV, const unsigned char *tweak, symmetric_key *skey);
429
430 /** Accelerated LRW
431 @param ct Ciphertext
432 @param pt Plaintext
433 @param blocks The number of complete blocks to process
434 @param IV The initial value (input/output)
435 @param tweak The LRW tweak
436 @param skey The scheduled key context
437 @return CRYPT_OK if successful
438 */
439 int (*accel_lrw_decrypt)(const unsigned char *ct, unsigned char *pt, unsigned long blocks, unsigned char *IV, const unsigned char *tweak, symmetric_key *skey);
440
441 /** Accelerated CCM packet (one-shot)
442 @param key The secret key to use
443 @param keylen The length of the secret key (octets)
444 @param uskey A previously scheduled key [optional can be NULL]
445 @param nonce The session nonce [use once]
446 @param noncelen The length of the nonce
447 @param header The header for the session
448 @param headerlen The length of the header (octets)
449 @param pt [out] The plaintext
450 @param ptlen The length of the plaintext (octets)
451 @param ct [out] The ciphertext
452 @param tag [out] The destination tag
453 @param taglen [in/out] The max size and resulting size of the authentication tag
454 @param direction Encrypt or Decrypt direction (0 or 1)
455 @return CRYPT_OK if successful
456 */
457 int (*accel_ccm_memory)(
458 const unsigned char *key, unsigned long keylen,
459 symmetric_key *uskey,
460 const unsigned char *nonce, unsigned long noncelen,
461 const unsigned char *header, unsigned long headerlen,
462 unsigned char *pt, unsigned long ptlen,
463 unsigned char *ct,
464 unsigned char *tag, unsigned long *taglen,
465 int direction);
466
467 /** Accelerated GCM packet (one shot)
468 @param key The secret key
469 @param keylen The length of the secret key
470 @param IV The initial vector
471 @param IVlen The length of the initial vector
472 @param adata The additional authentication data (header)
473 @param adatalen The length of the adata
474 @param pt The plaintext
475 @param ptlen The length of the plaintext (ciphertext length is the same)
476 @param ct The ciphertext
477 @param tag [out] The MAC tag
478 @param taglen [in/out] The MAC tag length
479 @param direction Encrypt or Decrypt mode (GCM_ENCRYPT or GCM_DECRYPT)
480 @return CRYPT_OK on success
481 */
482 int (*accel_gcm_memory)(
483 const unsigned char *key, unsigned long keylen,
484 const unsigned char *IV, unsigned long IVlen,
485 const unsigned char *adata, unsigned long adatalen,
486 unsigned char *pt, unsigned long ptlen,
487 unsigned char *ct,
488 unsigned char *tag, unsigned long *taglen,
489 int direction);
490
491 /** Accelerated one shot OMAC
492 @param key The secret key
493 @param keylen The key length (octets)
494 @param in The message
495 @param inlen Length of message (octets)
496 @param out [out] Destination for tag
497 @param outlen [in/out] Initial and final size of out
498 @return CRYPT_OK on success
499 */
500 int (*omac_memory)(
501 const unsigned char *key, unsigned long keylen,
502 const unsigned char *in, unsigned long inlen,
503 unsigned char *out, unsigned long *outlen);
504
505 /** Accelerated one shot XCBC
506 @param key The secret key
507 @param keylen The key length (octets)
508 @param in The message
509 @param inlen Length of message (octets)
510 @param out [out] Destination for tag
511 @param outlen [in/out] Initial and final size of out
512 @return CRYPT_OK on success
513 */
514 int (*xcbc_memory)(
515 const unsigned char *key, unsigned long keylen,
516 const unsigned char *in, unsigned long inlen,
517 unsigned char *out, unsigned long *outlen);
518
519 /** Accelerated one shot F9
520 @param key The secret key
521 @param keylen The key length (octets)
522 @param in The message
523 @param inlen Length of message (octets)
524 @param out [out] Destination for tag
525 @param outlen [in/out] Initial and final size of out
526 @return CRYPT_OK on success
527 @remark Requires manual padding
528 */
529 int (*f9_memory)(
530 const unsigned char *key, unsigned long keylen,
531 const unsigned char *in, unsigned long inlen,
532 unsigned char *out, unsigned long *outlen);
533 } cipher_descriptor[];
534
535 #ifdef BLOWFISH
536 int blowfish_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
537 int blowfish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
538 int blowfish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
539 int blowfish_test(void);
540 void blowfish_done(symmetric_key *skey);
541 int blowfish_keysize(int *keysize);
542 extern const struct ltc_cipher_descriptor blowfish_desc;
543 #endif
544
545 #ifdef RC5
546 int rc5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
547 int rc5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
548 int rc5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
549 int rc5_test(void);
550 void rc5_done(symmetric_key *skey);
551 int rc5_keysize(int *keysize);
552 extern const struct ltc_cipher_descriptor rc5_desc;
553 #endif
554
555 #ifdef RC6
556 int rc6_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
557 int rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
558 int rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
559 int rc6_test(void);
560 void rc6_done(symmetric_key *skey);
561 int rc6_keysize(int *keysize);
562 extern const struct ltc_cipher_descriptor rc6_desc;
563 #endif
564
565 #ifdef RC2
566 int rc2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
567 int rc2_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
568 int rc2_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
569 int rc2_test(void);
570 void rc2_done(symmetric_key *skey);
571 int rc2_keysize(int *keysize);
572 extern const struct ltc_cipher_descriptor rc2_desc;
573 #endif
574
575 #ifdef SAFERP
576 int saferp_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
577 int saferp_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
578 int saferp_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
579 int saferp_test(void);
580 void saferp_done(symmetric_key *skey);
581 int saferp_keysize(int *keysize);
582 extern const struct ltc_cipher_descriptor saferp_desc;
583 #endif
584
585 #ifdef SAFER
586 int safer_k64_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
587 int safer_sk64_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
588 int safer_k128_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
589 int safer_sk128_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
590 int safer_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
591 int safer_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
592 int safer_k64_test(void);
593 int safer_sk64_test(void);
594 int safer_sk128_test(void);
595 void safer_done(symmetric_key *skey);
596 int safer_64_keysize(int *keysize);
597 int safer_128_keysize(int *keysize);
598 extern const struct ltc_cipher_descriptor safer_k64_desc, safer_k128_desc, safer_sk64_desc, safer_sk128_desc;
599 #endif
600
601 #ifdef RIJNDAEL
602
603 /* make aes an alias */
604 #define aes_setup rijndael_setup
605 #define aes_ecb_encrypt rijndael_ecb_encrypt
606 #define aes_ecb_decrypt rijndael_ecb_decrypt
607 #define aes_test rijndael_test
608 #define aes_done rijndael_done
609 #define aes_keysize rijndael_keysize
610
611 #define aes_enc_setup rijndael_enc_setup
612 #define aes_enc_ecb_encrypt rijndael_enc_ecb_encrypt
613 #define aes_enc_keysize rijndael_enc_keysize
614
615 int rijndael_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
616 int rijndael_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
617 int rijndael_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
618 int rijndael_test(void);
619 void rijndael_done(symmetric_key *skey);
620 int rijndael_keysize(int *keysize);
621 int rijndael_enc_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
622 int rijndael_enc_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
623 void rijndael_enc_done(symmetric_key *skey);
624 int rijndael_enc_keysize(int *keysize);
625 extern const struct ltc_cipher_descriptor rijndael_desc, aes_desc;
626 extern const struct ltc_cipher_descriptor rijndael_enc_desc, aes_enc_desc;
627 #endif
628
629 #ifdef XTEA
630 int xtea_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
631 int xtea_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
632 int xtea_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
633 int xtea_test(void);
634 void xtea_done(symmetric_key *skey);
635 int xtea_keysize(int *keysize);
636 extern const struct ltc_cipher_descriptor xtea_desc;
637 #endif
638
639 #ifdef TWOFISH
640 int twofish_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
641 int twofish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
642 int twofish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
643 int twofish_test(void);
644 void twofish_done(symmetric_key *skey);
645 int twofish_keysize(int *keysize);
646 extern const struct ltc_cipher_descriptor twofish_desc;
647 #endif
648
649 #ifdef DES
650 int des_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
651 int des_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
652 int des_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
653 int des_test(void);
654 void des_done(symmetric_key *skey);
655 int des_keysize(int *keysize);
656 int des3_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
657 int des3_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
658 int des3_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
659 int des3_test(void);
660 void des3_done(symmetric_key *skey);
661 int des3_keysize(int *keysize);
662 extern const struct ltc_cipher_descriptor des_desc, des3_desc;
663 #endif
664
665 #ifdef CAST5
666 int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
667 int cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
668 int cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
669 int cast5_test(void);
670 void cast5_done(symmetric_key *skey);
671 int cast5_keysize(int *keysize);
672 extern const struct ltc_cipher_descriptor cast5_desc;
673 #endif
674
675 #ifdef NOEKEON
676 int noekeon_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
677 int noekeon_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
678 int noekeon_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
679 int noekeon_test(void);
680 void noekeon_done(symmetric_key *skey);
681 int noekeon_keysize(int *keysize);
682 extern const struct ltc_cipher_descriptor noekeon_desc;
683 #endif
684
685 #ifdef SKIPJACK
686 int skipjack_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
687 int skipjack_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
688 int skipjack_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
689 int skipjack_test(void);
690 void skipjack_done(symmetric_key *skey);
691 int skipjack_keysize(int *keysize);
692 extern const struct ltc_cipher_descriptor skipjack_desc;
693 #endif
694
695 #ifdef KHAZAD
696 int khazad_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
697 int khazad_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
698 int khazad_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
699 int khazad_test(void);
700 void khazad_done(symmetric_key *skey);
701 int khazad_keysize(int *keysize);
702 extern const struct ltc_cipher_descriptor khazad_desc;
703 #endif
704
705 #ifdef ANUBIS
706 int anubis_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
707 int anubis_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
708 int anubis_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
709 int anubis_test(void);
710 void anubis_done(symmetric_key *skey);
711 int anubis_keysize(int *keysize);
712 extern const struct ltc_cipher_descriptor anubis_desc;
713 #endif
714
715 #ifdef KSEED
716 int kseed_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
717 int kseed_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
718 int kseed_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
719 int kseed_test(void);
720 void kseed_done(symmetric_key *skey);
721 int kseed_keysize(int *keysize);
722 extern const struct ltc_cipher_descriptor kseed_desc;
723 #endif
724
725 #ifdef LTC_KASUMI
726 int kasumi_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
727 int kasumi_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
728 int kasumi_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
729 int kasumi_test(void);
730 void kasumi_done(symmetric_key *skey);
731 int kasumi_keysize(int *keysize);
732 extern const struct ltc_cipher_descriptor kasumi_desc;
733 #endif
734
735 #ifdef LTC_ECB_MODE
736 int ecb_start(int cipher, const unsigned char *key,
737 int keylen, int num_rounds, symmetric_ECB *ecb);
738 int ecb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_ECB *ecb);
739 int ecb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_ECB *ecb);
740 int ecb_done(symmetric_ECB *ecb);
741 #endif
742
743 #ifdef LTC_CFB_MODE
744 int cfb_start(int cipher, const unsigned char *IV, const unsigned char *key,
745 int keylen, int num_rounds, symmetric_CFB *cfb);
746 int cfb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CFB *cfb);
747 int cfb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CFB *cfb);
748 int cfb_getiv(unsigned char *IV, unsigned long *len, symmetric_CFB *cfb);
749 int cfb_setiv(const unsigned char *IV, unsigned long len, symmetric_CFB *cfb);
750 int cfb_done(symmetric_CFB *cfb);
751 #endif
752
753 #ifdef LTC_OFB_MODE
754 int ofb_start(int cipher, const unsigned char *IV, const unsigned char *key,
755 int keylen, int num_rounds, symmetric_OFB *ofb);
756 int ofb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_OFB *ofb);
757 int ofb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_OFB *ofb);
758 int ofb_getiv(unsigned char *IV, unsigned long *len, symmetric_OFB *ofb);
759 int ofb_setiv(const unsigned char *IV, unsigned long len, symmetric_OFB *ofb);
760 int ofb_done(symmetric_OFB *ofb);
761 #endif
762
763 #ifdef LTC_CBC_MODE
764 int cbc_start(int cipher, const unsigned char *IV, const unsigned char *key,
765 int keylen, int num_rounds, symmetric_CBC *cbc);
766 int cbc_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CBC *cbc);
767 int cbc_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CBC *cbc);
768 int cbc_getiv(unsigned char *IV, unsigned long *len, symmetric_CBC *cbc);
769 int cbc_setiv(const unsigned char *IV, unsigned long len, symmetric_CBC *cbc);
770 int cbc_done(symmetric_CBC *cbc);
771 #endif
772
773 #ifdef LTC_CTR_MODE
774
775 #define CTR_COUNTER_LITTLE_ENDIAN 0
776 #define CTR_COUNTER_BIG_ENDIAN 1
777 #define LTC_CTR_RFC3686 2
778
779 int ctr_start( int cipher,
780 const unsigned char *IV,
781 const unsigned char *key, int keylen,
782 int num_rounds, int ctr_mode,
783 symmetric_CTR *ctr);
784 int ctr_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CTR *ctr);
785 int ctr_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CTR *ctr);
786 int ctr_getiv(unsigned char *IV, unsigned long *len, symmetric_CTR *ctr);
787 int ctr_setiv(const unsigned char *IV, unsigned long len, symmetric_CTR *ctr);
788 int ctr_done(symmetric_CTR *ctr);
789 int ctr_test(void);
790 #endif
791
792 #ifdef LTC_LRW_MODE
793
794 #define LRW_ENCRYPT 0
795 #define LRW_DECRYPT 1
796
797 int lrw_start( int cipher,
798 const unsigned char *IV,
799 const unsigned char *key, int keylen,
800 const unsigned char *tweak,
801 int num_rounds,
802 symmetric_LRW *lrw);
803 int lrw_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_LRW *lrw);
804 int lrw_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_LRW *lrw);
805 int lrw_getiv(unsigned char *IV, unsigned long *len, symmetric_LRW *lrw);
806 int lrw_setiv(const unsigned char *IV, unsigned long len, symmetric_LRW *lrw);
807 int lrw_done(symmetric_LRW *lrw);
808 int lrw_test(void);
809
810 /* don't call */
811 int lrw_process(const unsigned char *pt, unsigned char *ct, unsigned long len, int mode, symmetric_LRW *lrw);
812 #endif
813
814 #ifdef LTC_F8_MODE
815 int f8_start( int cipher, const unsigned char *IV,
816 const unsigned char *key, int keylen,
817 const unsigned char *salt_key, int skeylen,
818 int num_rounds, symmetric_F8 *f8);
819 int f8_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_F8 *f8);
820 int f8_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_F8 *f8);
821 int f8_getiv(unsigned char *IV, unsigned long *len, symmetric_F8 *f8);
822 int f8_setiv(const unsigned char *IV, unsigned long len, symmetric_F8 *f8);
823 int f8_done(symmetric_F8 *f8);
824 int f8_test_mode(void);
825 #endif
826
827
828 int find_cipher(const char *name);
829 int find_cipher_any(const char *name, int blocklen, int keylen);
830 int find_cipher_id(unsigned char ID);
831 int register_cipher(const struct ltc_cipher_descriptor *cipher);
832 int unregister_cipher(const struct ltc_cipher_descriptor *cipher);
833 int cipher_is_valid(int idx);
834
835 LTC_MUTEX_PROTO(ltc_cipher_mutex)
836
837 /* $Source: /cvs/libtom/libtomcrypt/src/headers/tomcrypt_cipher.h,v $ */
838 /* $Revision: 1.46 $ */
839 /* $Date: 2006/11/13 23:09:38 $ */