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805e021f CE |
1 | /* |
2 | * Copyright (c) 2006 - 2008 Kungliga Tekniska Högskolan | |
3 | * (Royal Institute of Technology, Stockholm, Sweden). | |
4 | * All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * | |
10 | * 1. Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * | |
17 | * 3. Neither the name of the Institute nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #include <config.h> | |
35 | ||
36 | #define HC_DEPRECATED | |
37 | ||
38 | #include <sys/types.h> | |
39 | #include <stdio.h> | |
40 | #include <stdlib.h> | |
41 | #include <string.h> | |
42 | #include <assert.h> | |
43 | ||
44 | #include <evp.h> | |
45 | #include <evp-hcrypto.h> | |
46 | ||
47 | #include <krb5-types.h> | |
48 | ||
49 | #include <des.h> | |
50 | #include "camellia.h" | |
51 | #include <aes.h> | |
52 | ||
53 | #include <rc2.h> | |
54 | #include <rc4.h> | |
55 | ||
56 | #include <sha.h> | |
57 | #include <md2.h> | |
58 | #include <md4.h> | |
59 | #include <md5.h> | |
60 | ||
61 | /* | |
62 | * | |
63 | */ | |
64 | ||
65 | static int | |
66 | aes_init(EVP_CIPHER_CTX *ctx, | |
67 | const unsigned char * key, | |
68 | const unsigned char * iv, | |
69 | int encp) | |
70 | { | |
71 | AES_KEY *k = ctx->cipher_data; | |
72 | if (ctx->encrypt) | |
73 | AES_set_encrypt_key(key, ctx->cipher->key_len * 8, k); | |
74 | else | |
75 | AES_set_decrypt_key(key, ctx->cipher->key_len * 8, k); | |
76 | return 1; | |
77 | } | |
78 | ||
79 | static int | |
80 | aes_do_cipher(EVP_CIPHER_CTX *ctx, | |
81 | unsigned char *out, | |
82 | const unsigned char *in, | |
83 | unsigned int size) | |
84 | { | |
85 | AES_KEY *k = ctx->cipher_data; | |
86 | if (ctx->flags & EVP_CIPH_CFB8_MODE) | |
87 | AES_cfb8_encrypt(in, out, size, k, ctx->iv, ctx->encrypt); | |
88 | else | |
89 | AES_cbc_encrypt(in, out, size, k, ctx->iv, ctx->encrypt); | |
90 | return 1; | |
91 | } | |
92 | ||
93 | /** | |
94 | * The AES-128 cipher type (hcrypto) | |
95 | * | |
96 | * @return the AES-128 EVP_CIPHER pointer. | |
97 | * | |
98 | * @ingroup hcrypto_evp | |
99 | */ | |
100 | ||
101 | const EVP_CIPHER * | |
102 | EVP_hcrypto_aes_128_cbc(void) | |
103 | { | |
104 | static const EVP_CIPHER aes_128_cbc = { | |
105 | 0, | |
106 | 16, | |
107 | 16, | |
108 | 16, | |
109 | EVP_CIPH_CBC_MODE, | |
110 | aes_init, | |
111 | aes_do_cipher, | |
112 | NULL, | |
113 | sizeof(AES_KEY), | |
114 | NULL, | |
115 | NULL, | |
116 | NULL, | |
117 | NULL | |
118 | }; | |
119 | ||
120 | return &aes_128_cbc; | |
121 | } | |
122 | ||
123 | /** | |
124 | * The AES-192 cipher type (hcrypto) | |
125 | * | |
126 | * @return the AES-192 EVP_CIPHER pointer. | |
127 | * | |
128 | * @ingroup hcrypto_evp | |
129 | */ | |
130 | ||
131 | const EVP_CIPHER * | |
132 | EVP_hcrypto_aes_192_cbc(void) | |
133 | { | |
134 | static const EVP_CIPHER aes_192_cbc = { | |
135 | 0, | |
136 | 16, | |
137 | 24, | |
138 | 16, | |
139 | EVP_CIPH_CBC_MODE, | |
140 | aes_init, | |
141 | aes_do_cipher, | |
142 | NULL, | |
143 | sizeof(AES_KEY), | |
144 | NULL, | |
145 | NULL, | |
146 | NULL, | |
147 | NULL | |
148 | }; | |
149 | return &aes_192_cbc; | |
150 | } | |
151 | ||
152 | /** | |
153 | * The AES-256 cipher type (hcrypto) | |
154 | * | |
155 | * @return the AES-256 EVP_CIPHER pointer. | |
156 | * | |
157 | * @ingroup hcrypto_evp | |
158 | */ | |
159 | ||
160 | const EVP_CIPHER * | |
161 | EVP_hcrypto_aes_256_cbc(void) | |
162 | { | |
163 | static const EVP_CIPHER aes_256_cbc = { | |
164 | 0, | |
165 | 16, | |
166 | 32, | |
167 | 16, | |
168 | EVP_CIPH_CBC_MODE, | |
169 | aes_init, | |
170 | aes_do_cipher, | |
171 | NULL, | |
172 | sizeof(AES_KEY), | |
173 | NULL, | |
174 | NULL, | |
175 | NULL, | |
176 | NULL | |
177 | }; | |
178 | return &aes_256_cbc; | |
179 | } | |
180 | ||
181 | /** | |
182 | * The AES-128 CFB8 cipher type (hcrypto) | |
183 | * | |
184 | * @return the AES-128 EVP_CIPHER pointer. | |
185 | * | |
186 | * @ingroup hcrypto_evp | |
187 | */ | |
188 | ||
189 | const EVP_CIPHER * | |
190 | EVP_hcrypto_aes_128_cfb8(void) | |
191 | { | |
192 | static const EVP_CIPHER aes_128_cfb8 = { | |
193 | 0, | |
194 | 1, | |
195 | 16, | |
196 | 16, | |
197 | EVP_CIPH_CFB8_MODE, | |
198 | aes_init, | |
199 | aes_do_cipher, | |
200 | NULL, | |
201 | sizeof(AES_KEY), | |
202 | NULL, | |
203 | NULL, | |
204 | NULL, | |
205 | NULL | |
206 | }; | |
207 | ||
208 | return &aes_128_cfb8; | |
209 | } | |
210 | ||
211 | /** | |
212 | * The AES-192 CFB8 cipher type (hcrypto) | |
213 | * | |
214 | * @return the AES-192 EVP_CIPHER pointer. | |
215 | * | |
216 | * @ingroup hcrypto_evp | |
217 | */ | |
218 | ||
219 | const EVP_CIPHER * | |
220 | EVP_hcrypto_aes_192_cfb8(void) | |
221 | { | |
222 | static const EVP_CIPHER aes_192_cfb8 = { | |
223 | 0, | |
224 | 1, | |
225 | 24, | |
226 | 16, | |
227 | EVP_CIPH_CFB8_MODE, | |
228 | aes_init, | |
229 | aes_do_cipher, | |
230 | NULL, | |
231 | sizeof(AES_KEY), | |
232 | NULL, | |
233 | NULL, | |
234 | NULL, | |
235 | NULL | |
236 | }; | |
237 | return &aes_192_cfb8; | |
238 | } | |
239 | ||
240 | /** | |
241 | * The AES-256 CFB8 cipher type (hcrypto) | |
242 | * | |
243 | * @return the AES-256 EVP_CIPHER pointer. | |
244 | * | |
245 | * @ingroup hcrypto_evp | |
246 | */ | |
247 | ||
248 | const EVP_CIPHER * | |
249 | EVP_hcrypto_aes_256_cfb8(void) | |
250 | { | |
251 | static const EVP_CIPHER aes_256_cfb8 = { | |
252 | 0, | |
253 | 1, | |
254 | 32, | |
255 | 16, | |
256 | EVP_CIPH_CFB8_MODE, | |
257 | aes_init, | |
258 | aes_do_cipher, | |
259 | NULL, | |
260 | sizeof(AES_KEY), | |
261 | NULL, | |
262 | NULL, | |
263 | NULL, | |
264 | NULL | |
265 | }; | |
266 | return &aes_256_cfb8; | |
267 | } | |
268 | ||
269 | /** | |
270 | * The message digest SHA256 - hcrypto | |
271 | * | |
272 | * @return the message digest type. | |
273 | * | |
274 | * @ingroup hcrypto_evp | |
275 | */ | |
276 | ||
277 | const EVP_MD * | |
278 | EVP_hcrypto_sha256(void) | |
279 | { | |
280 | static const struct hc_evp_md sha256 = { | |
281 | 32, | |
282 | 64, | |
283 | sizeof(SHA256_CTX), | |
284 | (hc_evp_md_init)SHA256_Init, | |
285 | (hc_evp_md_update)SHA256_Update, | |
286 | (hc_evp_md_final)SHA256_Final, | |
287 | NULL | |
288 | }; | |
289 | return &sha256; | |
290 | } | |
291 | ||
292 | /** | |
293 | * The message digest SHA384 - hcrypto | |
294 | * | |
295 | * @return the message digest type. | |
296 | * | |
297 | * @ingroup hcrypto_evp | |
298 | */ | |
299 | ||
300 | const EVP_MD * | |
301 | EVP_hcrypto_sha384(void) | |
302 | { | |
303 | static const struct hc_evp_md sha384 = { | |
304 | 48, | |
305 | 128, | |
306 | sizeof(SHA384_CTX), | |
307 | (hc_evp_md_init)SHA384_Init, | |
308 | (hc_evp_md_update)SHA384_Update, | |
309 | (hc_evp_md_final)SHA384_Final, | |
310 | NULL | |
311 | }; | |
312 | return &sha384; | |
313 | } | |
314 | ||
315 | /** | |
316 | * The message digest SHA512 - hcrypto | |
317 | * | |
318 | * @return the message digest type. | |
319 | * | |
320 | * @ingroup hcrypto_evp | |
321 | */ | |
322 | ||
323 | const EVP_MD * | |
324 | EVP_hcrypto_sha512(void) | |
325 | { | |
326 | static const struct hc_evp_md sha512 = { | |
327 | 64, | |
328 | 128, | |
329 | sizeof(SHA512_CTX), | |
330 | (hc_evp_md_init)SHA512_Init, | |
331 | (hc_evp_md_update)SHA512_Update, | |
332 | (hc_evp_md_final)SHA512_Final, | |
333 | NULL | |
334 | }; | |
335 | return &sha512; | |
336 | } | |
337 | ||
338 | /** | |
339 | * The message digest SHA1 - hcrypto | |
340 | * | |
341 | * @return the message digest type. | |
342 | * | |
343 | * @ingroup hcrypto_evp | |
344 | */ | |
345 | ||
346 | const EVP_MD * | |
347 | EVP_hcrypto_sha1(void) | |
348 | { | |
349 | static const struct hc_evp_md sha1 = { | |
350 | 20, | |
351 | 64, | |
352 | sizeof(SHA_CTX), | |
353 | (hc_evp_md_init)SHA1_Init, | |
354 | (hc_evp_md_update)SHA1_Update, | |
355 | (hc_evp_md_final)SHA1_Final, | |
356 | NULL | |
357 | }; | |
358 | return &sha1; | |
359 | } | |
360 | ||
361 | /** | |
362 | * The message digest MD5 - hcrypto | |
363 | * | |
364 | * @return the message digest type. | |
365 | * | |
366 | * @ingroup hcrypto_evp | |
367 | */ | |
368 | ||
369 | const EVP_MD * | |
370 | EVP_hcrypto_md5(void) | |
371 | { | |
372 | static const struct hc_evp_md md5 = { | |
373 | 16, | |
374 | 64, | |
375 | sizeof(MD5_CTX), | |
376 | (hc_evp_md_init)MD5_Init, | |
377 | (hc_evp_md_update)MD5_Update, | |
378 | (hc_evp_md_final)MD5_Final, | |
379 | NULL | |
380 | }; | |
381 | return &md5; | |
382 | } | |
383 | ||
384 | /** | |
385 | * The message digest MD4 - hcrypto | |
386 | * | |
387 | * @return the message digest type. | |
388 | * | |
389 | * @ingroup hcrypto_evp | |
390 | */ | |
391 | ||
392 | const EVP_MD * | |
393 | EVP_hcrypto_md4(void) | |
394 | { | |
395 | static const struct hc_evp_md md4 = { | |
396 | 16, | |
397 | 64, | |
398 | sizeof(MD4_CTX), | |
399 | (hc_evp_md_init)MD4_Init, | |
400 | (hc_evp_md_update)MD4_Update, | |
401 | (hc_evp_md_final)MD4_Final, | |
402 | NULL | |
403 | }; | |
404 | return &md4; | |
405 | } | |
406 | ||
407 | /** | |
408 | * The message digest MD2 - hcrypto | |
409 | * | |
410 | * @return the message digest type. | |
411 | * | |
412 | * @ingroup hcrypto_evp | |
413 | */ | |
414 | ||
415 | const EVP_MD * | |
416 | EVP_hcrypto_md2(void) | |
417 | { | |
418 | static const struct hc_evp_md md2 = { | |
419 | 16, | |
420 | 16, | |
421 | sizeof(MD2_CTX), | |
422 | (hc_evp_md_init)MD2_Init, | |
423 | (hc_evp_md_update)MD2_Update, | |
424 | (hc_evp_md_final)MD2_Final, | |
425 | NULL | |
426 | }; | |
427 | return &md2; | |
428 | } | |
429 | ||
430 | /* | |
431 | * | |
432 | */ | |
433 | ||
434 | static int | |
435 | des_cbc_init(EVP_CIPHER_CTX *ctx, | |
436 | const unsigned char * key, | |
437 | const unsigned char * iv, | |
438 | int encp) | |
439 | { | |
440 | DES_key_schedule *k = ctx->cipher_data; | |
441 | DES_cblock deskey; | |
442 | memcpy(&deskey, key, sizeof(deskey)); | |
443 | DES_set_key_unchecked(&deskey, k); | |
444 | return 1; | |
445 | } | |
446 | ||
447 | static int | |
448 | des_cbc_do_cipher(EVP_CIPHER_CTX *ctx, | |
449 | unsigned char *out, | |
450 | const unsigned char *in, | |
451 | unsigned int size) | |
452 | { | |
453 | DES_key_schedule *k = ctx->cipher_data; | |
454 | DES_cbc_encrypt(in, out, size, | |
455 | k, (DES_cblock *)ctx->iv, ctx->encrypt); | |
456 | return 1; | |
457 | } | |
458 | ||
459 | /** | |
460 | * The DES cipher type | |
461 | * | |
462 | * @return the DES-CBC EVP_CIPHER pointer. | |
463 | * | |
464 | * @ingroup hcrypto_evp | |
465 | */ | |
466 | ||
467 | const EVP_CIPHER * | |
468 | EVP_hcrypto_des_cbc(void) | |
469 | { | |
470 | static const EVP_CIPHER des_cbc = { | |
471 | 0, | |
472 | 8, | |
473 | 8, | |
474 | 8, | |
475 | EVP_CIPH_CBC_MODE, | |
476 | des_cbc_init, | |
477 | des_cbc_do_cipher, | |
478 | NULL, | |
479 | sizeof(DES_key_schedule), | |
480 | NULL, | |
481 | NULL, | |
482 | NULL, | |
483 | NULL | |
484 | }; | |
485 | return &des_cbc; | |
486 | } | |
487 | ||
488 | /* | |
489 | * | |
490 | */ | |
491 | ||
492 | struct des_ede3_cbc { | |
493 | DES_key_schedule ks[3]; | |
494 | }; | |
495 | ||
496 | static int | |
497 | des_ede3_cbc_init(EVP_CIPHER_CTX *ctx, | |
498 | const unsigned char * key, | |
499 | const unsigned char * iv, | |
500 | int encp) | |
501 | { | |
502 | struct des_ede3_cbc *k = ctx->cipher_data; | |
503 | DES_cblock deskey; | |
504 | ||
505 | memcpy(&deskey, key, sizeof(deskey)); | |
506 | DES_set_odd_parity(&deskey); | |
507 | DES_set_key_unchecked(&deskey, &k->ks[0]); | |
508 | ||
509 | memcpy(&deskey, key + 8, sizeof(deskey)); | |
510 | DES_set_odd_parity(&deskey); | |
511 | DES_set_key_unchecked(&deskey, &k->ks[1]); | |
512 | ||
513 | memcpy(&deskey, key + 16, sizeof(deskey)); | |
514 | DES_set_odd_parity(&deskey); | |
515 | DES_set_key_unchecked(&deskey, &k->ks[2]); | |
516 | ||
517 | return 1; | |
518 | } | |
519 | ||
520 | static int | |
521 | des_ede3_cbc_do_cipher(EVP_CIPHER_CTX *ctx, | |
522 | unsigned char *out, | |
523 | const unsigned char *in, | |
524 | unsigned int size) | |
525 | { | |
526 | struct des_ede3_cbc *k = ctx->cipher_data; | |
527 | DES_ede3_cbc_encrypt(in, out, size, | |
528 | &k->ks[0], &k->ks[1], &k->ks[2], | |
529 | (DES_cblock *)ctx->iv, ctx->encrypt); | |
530 | return 1; | |
531 | } | |
532 | ||
533 | /** | |
534 | * The tripple DES cipher type - hcrypto | |
535 | * | |
536 | * @return the DES-EDE3-CBC EVP_CIPHER pointer. | |
537 | * | |
538 | * @ingroup hcrypto_evp | |
539 | */ | |
540 | ||
541 | const EVP_CIPHER * | |
542 | EVP_hcrypto_des_ede3_cbc(void) | |
543 | { | |
544 | static const EVP_CIPHER des_ede3_cbc = { | |
545 | 0, | |
546 | 8, | |
547 | 24, | |
548 | 8, | |
549 | EVP_CIPH_CBC_MODE, | |
550 | des_ede3_cbc_init, | |
551 | des_ede3_cbc_do_cipher, | |
552 | NULL, | |
553 | sizeof(struct des_ede3_cbc), | |
554 | NULL, | |
555 | NULL, | |
556 | NULL, | |
557 | NULL | |
558 | }; | |
559 | return &des_ede3_cbc; | |
560 | } | |
561 | ||
562 | /* | |
563 | * | |
564 | */ | |
565 | ||
566 | struct rc2_cbc { | |
567 | unsigned int maximum_effective_key; | |
568 | RC2_KEY key; | |
569 | }; | |
570 | ||
571 | static int | |
572 | rc2_init(EVP_CIPHER_CTX *ctx, | |
573 | const unsigned char * key, | |
574 | const unsigned char * iv, | |
575 | int encp) | |
576 | { | |
577 | struct rc2_cbc *k = ctx->cipher_data; | |
578 | k->maximum_effective_key = EVP_CIPHER_CTX_key_length(ctx) * 8; | |
579 | RC2_set_key(&k->key, | |
580 | EVP_CIPHER_CTX_key_length(ctx), | |
581 | key, | |
582 | k->maximum_effective_key); | |
583 | return 1; | |
584 | } | |
585 | ||
586 | static int | |
587 | rc2_do_cipher(EVP_CIPHER_CTX *ctx, | |
588 | unsigned char *out, | |
589 | const unsigned char *in, | |
590 | unsigned int size) | |
591 | { | |
592 | struct rc2_cbc *k = ctx->cipher_data; | |
593 | RC2_cbc_encrypt(in, out, size, &k->key, ctx->iv, ctx->encrypt); | |
594 | return 1; | |
595 | } | |
596 | ||
597 | /** | |
598 | * The RC2 cipher type - hcrypto | |
599 | * | |
600 | * @return the RC2 EVP_CIPHER pointer. | |
601 | * | |
602 | * @ingroup hcrypto_evp | |
603 | */ | |
604 | ||
605 | const EVP_CIPHER * | |
606 | EVP_hcrypto_rc2_cbc(void) | |
607 | { | |
608 | static const EVP_CIPHER rc2_cbc = { | |
609 | 0, | |
610 | RC2_BLOCK_SIZE, | |
611 | RC2_KEY_LENGTH, | |
612 | RC2_BLOCK_SIZE, | |
613 | EVP_CIPH_CBC_MODE|EVP_CIPH_VARIABLE_LENGTH, | |
614 | rc2_init, | |
615 | rc2_do_cipher, | |
616 | NULL, | |
617 | sizeof(struct rc2_cbc), | |
618 | NULL, | |
619 | NULL, | |
620 | NULL, | |
621 | NULL | |
622 | }; | |
623 | return &rc2_cbc; | |
624 | } | |
625 | ||
626 | /** | |
627 | * The RC2-40 cipher type | |
628 | * | |
629 | * @return the RC2-40 EVP_CIPHER pointer. | |
630 | * | |
631 | * @ingroup hcrypto_evp | |
632 | */ | |
633 | ||
634 | const EVP_CIPHER * | |
635 | EVP_hcrypto_rc2_40_cbc(void) | |
636 | { | |
637 | static const EVP_CIPHER rc2_40_cbc = { | |
638 | 0, | |
639 | RC2_BLOCK_SIZE, | |
640 | 5, | |
641 | RC2_BLOCK_SIZE, | |
642 | EVP_CIPH_CBC_MODE, | |
643 | rc2_init, | |
644 | rc2_do_cipher, | |
645 | NULL, | |
646 | sizeof(struct rc2_cbc), | |
647 | NULL, | |
648 | NULL, | |
649 | NULL, | |
650 | NULL | |
651 | }; | |
652 | return &rc2_40_cbc; | |
653 | } | |
654 | ||
655 | /** | |
656 | * The RC2-64 cipher type | |
657 | * | |
658 | * @return the RC2-64 EVP_CIPHER pointer. | |
659 | * | |
660 | * @ingroup hcrypto_evp | |
661 | */ | |
662 | ||
663 | const EVP_CIPHER * | |
664 | EVP_hcrypto_rc2_64_cbc(void) | |
665 | { | |
666 | static const EVP_CIPHER rc2_64_cbc = { | |
667 | 0, | |
668 | RC2_BLOCK_SIZE, | |
669 | 8, | |
670 | RC2_BLOCK_SIZE, | |
671 | EVP_CIPH_CBC_MODE, | |
672 | rc2_init, | |
673 | rc2_do_cipher, | |
674 | NULL, | |
675 | sizeof(struct rc2_cbc), | |
676 | NULL, | |
677 | NULL, | |
678 | NULL, | |
679 | NULL | |
680 | }; | |
681 | return &rc2_64_cbc; | |
682 | } | |
683 | ||
684 | static int | |
685 | camellia_init(EVP_CIPHER_CTX *ctx, | |
686 | const unsigned char * key, | |
687 | const unsigned char * iv, | |
688 | int encp) | |
689 | { | |
690 | CAMELLIA_KEY *k = ctx->cipher_data; | |
691 | k->bits = ctx->cipher->key_len * 8; | |
692 | CAMELLIA_set_key(key, ctx->cipher->key_len * 8, k); | |
693 | return 1; | |
694 | } | |
695 | ||
696 | static int | |
697 | camellia_do_cipher(EVP_CIPHER_CTX *ctx, | |
698 | unsigned char *out, | |
699 | const unsigned char *in, | |
700 | unsigned int size) | |
701 | { | |
702 | CAMELLIA_KEY *k = ctx->cipher_data; | |
703 | CAMELLIA_cbc_encrypt(in, out, size, k, ctx->iv, ctx->encrypt); | |
704 | return 1; | |
705 | } | |
706 | ||
707 | /** | |
708 | * The Camellia-128 cipher type - hcrypto | |
709 | * | |
710 | * @return the Camellia-128 EVP_CIPHER pointer. | |
711 | * | |
712 | * @ingroup hcrypto_evp | |
713 | */ | |
714 | ||
715 | const EVP_CIPHER * | |
716 | EVP_hcrypto_camellia_128_cbc(void) | |
717 | { | |
718 | static const EVP_CIPHER cipher = { | |
719 | 0, | |
720 | 16, | |
721 | 16, | |
722 | 16, | |
723 | EVP_CIPH_CBC_MODE, | |
724 | camellia_init, | |
725 | camellia_do_cipher, | |
726 | NULL, | |
727 | sizeof(CAMELLIA_KEY), | |
728 | NULL, | |
729 | NULL, | |
730 | NULL, | |
731 | NULL | |
732 | }; | |
733 | return &cipher; | |
734 | } | |
735 | ||
736 | /** | |
737 | * The Camellia-198 cipher type - hcrypto | |
738 | * | |
739 | * @return the Camellia-198 EVP_CIPHER pointer. | |
740 | * | |
741 | * @ingroup hcrypto_evp | |
742 | */ | |
743 | ||
744 | const EVP_CIPHER * | |
745 | EVP_hcrypto_camellia_192_cbc(void) | |
746 | { | |
747 | static const EVP_CIPHER cipher = { | |
748 | 0, | |
749 | 16, | |
750 | 24, | |
751 | 16, | |
752 | EVP_CIPH_CBC_MODE, | |
753 | camellia_init, | |
754 | camellia_do_cipher, | |
755 | NULL, | |
756 | sizeof(CAMELLIA_KEY), | |
757 | NULL, | |
758 | NULL, | |
759 | NULL, | |
760 | NULL | |
761 | }; | |
762 | return &cipher; | |
763 | } | |
764 | ||
765 | /** | |
766 | * The Camellia-256 cipher type - hcrypto | |
767 | * | |
768 | * @return the Camellia-256 EVP_CIPHER pointer. | |
769 | * | |
770 | * @ingroup hcrypto_evp | |
771 | */ | |
772 | ||
773 | const EVP_CIPHER * | |
774 | EVP_hcrypto_camellia_256_cbc(void) | |
775 | { | |
776 | static const EVP_CIPHER cipher = { | |
777 | 0, | |
778 | 16, | |
779 | 32, | |
780 | 16, | |
781 | EVP_CIPH_CBC_MODE, | |
782 | camellia_init, | |
783 | camellia_do_cipher, | |
784 | NULL, | |
785 | sizeof(CAMELLIA_KEY), | |
786 | NULL, | |
787 | NULL, | |
788 | NULL, | |
789 | NULL | |
790 | }; | |
791 | return &cipher; | |
792 | } | |
793 | ||
794 | static int | |
795 | rc4_init(EVP_CIPHER_CTX *ctx, | |
796 | const unsigned char *key, | |
797 | const unsigned char *iv, | |
798 | int enc) | |
799 | { | |
800 | RC4_KEY *k = ctx->cipher_data; | |
801 | RC4_set_key(k, ctx->key_len, key); | |
802 | return 1; | |
803 | } | |
804 | ||
805 | static int | |
806 | rc4_do_cipher(EVP_CIPHER_CTX *ctx, | |
807 | unsigned char *out, | |
808 | const unsigned char *in, | |
809 | unsigned int size) | |
810 | { | |
811 | RC4_KEY *k = ctx->cipher_data; | |
812 | RC4(k, size, in, out); | |
813 | return 1; | |
814 | } | |
815 | ||
816 | const EVP_CIPHER * | |
817 | EVP_hcrypto_rc4(void) | |
818 | { | |
819 | static const EVP_CIPHER rc4 = { | |
820 | 0, | |
821 | 1, | |
822 | 16, | |
823 | 0, | |
824 | EVP_CIPH_STREAM_CIPHER|EVP_CIPH_VARIABLE_LENGTH, | |
825 | rc4_init, | |
826 | rc4_do_cipher, | |
827 | NULL, | |
828 | sizeof(RC4_KEY), | |
829 | NULL, | |
830 | NULL, | |
831 | NULL, | |
832 | NULL | |
833 | }; | |
834 | return &rc4; | |
835 | } | |
836 | ||
837 | ||
838 | const EVP_CIPHER * | |
839 | EVP_hcrypto_rc4_40(void) | |
840 | { | |
841 | static const EVP_CIPHER rc4_40 = { | |
842 | 0, | |
843 | 1, | |
844 | 5, | |
845 | 0, | |
846 | EVP_CIPH_STREAM_CIPHER|EVP_CIPH_VARIABLE_LENGTH, | |
847 | rc4_init, | |
848 | rc4_do_cipher, | |
849 | NULL, | |
850 | sizeof(RC4_KEY), | |
851 | NULL, | |
852 | NULL, | |
853 | NULL, | |
854 | NULL | |
855 | }; | |
856 | return &rc4_40; | |
857 | } |