1 /* crypto/engine/hw_zencod.c */
3 * Written by Fred Donnat (frederic.donnat@zencod.com) for "zencod" * engine
4 * integration in order to redirect crypto computing on a crypto * hardware
5 * accelerator zenssl32 ;-) * * Date : 25 jun 2002 * Revision : 17 Ju7 2002
6 * * Version : zencod_engine-0.9.7
9 /* ====================================================================
10 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in
21 * the documentation and/or other materials provided with the
24 * 3. All advertising materials mentioning features or use of this
25 * software must display the following acknowledgment:
26 * "This product includes software developed by the OpenSSL Project
27 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
29 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
30 * endorse or promote products derived from this software without
31 * prior written permission. For written permission, please contact
32 * licensing@OpenSSL.org.
34 * 5. Products derived from this software may not be called "OpenSSL"
35 * nor may "OpenSSL" appear in their names without prior written
36 * permission of the OpenSSL Project.
38 * 6. Redistributions of any form whatsoever must retain the following
40 * "This product includes software developed by the OpenSSL Project
41 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
43 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
44 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
46 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
47 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
49 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
50 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
52 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
53 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
54 * OF THE POSSIBILITY OF SUCH DAMAGE.
55 * ====================================================================
57 * This product includes cryptographic software written by Eric Young
58 * (eay@cryptsoft.com). This product includes software written by Tim
59 * Hudson (tjh@cryptsoft.com).
63 /* ENGINE general include */
65 #include <openssl/crypto.h>
66 #include <openssl/dso.h>
67 #include <openssl/engine.h>
70 # ifndef OPENSSL_NO_HW_ZENCOD
73 # include "hw_zencod.h"
75 # include "vendor_defns/hw_zencod.h"
78 # define ZENCOD_LIB_NAME "zencod engine"
79 # include "hw_zencod_err.c"
81 # define FAIL_TO_SOFTWARE -15
83 # define ZEN_LIBRARY "zenbridge"
85 # ifdef ZENCOD_TRACING
86 # define PERROR(s) perror(s)
87 # define CHEESE() fputs("## [ZenEngine] ## " __FUNCTION__ "\n", stderr)
95 static inline void esrever(unsigned char *d, int l)
97 for (; --l > 0; --l, d++) {
104 static inline void ypcmem(unsigned char *d, const unsigned char *s, int l)
110 static __inline void esrever(unsigned char *d, int l)
112 for (; --l > 0; --l, d++) {
119 static __inline void ypcmem(unsigned char *d, const unsigned char *s, int l)
126 # define BIGNUM2ZEN(n, bn) (ptr_zencod_init_number((n), \
127 (unsigned long) ((bn)->top * BN_BITS2), \
128 (unsigned char *) ((bn)->d)))
130 # define ZEN_BITS(n, bytes) (ptr_zencod_bytes2bits((unsigned char *) (n), (unsigned long) (bytes)))
131 # define ZEN_BYTES(bits) (ptr_zencod_bits2bytes((unsigned long) (bits)))
133 /* Function for ENGINE detection and control */
134 static int zencod_destroy(ENGINE *e);
135 static int zencod_init(ENGINE *e);
136 static int zencod_finish(ENGINE *e);
137 static int zencod_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) ());
140 static int zencod_bn_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
141 const BIGNUM *m, BN_CTX *ctx);
144 # ifndef OPENSSL_NO_RSA
145 static int RSA_zencod_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
146 static int RSA_zencod_bn_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
147 const BIGNUM *m, BN_CTX *ctx,
152 # ifndef OPENSSL_NO_DSA
153 static int DSA_zencod_bn_mod_exp(DSA *dsa, BIGNUM *r, BIGNUM *a,
154 const BIGNUM *p, const BIGNUM *m,
155 BN_CTX *ctx, BN_MONT_CTX *m_ctx);
157 static DSA_SIG *DSA_zencod_do_sign(const unsigned char *dgst, int dlen,
159 static int DSA_zencod_do_verify(const unsigned char *dgst, int dgst_len,
160 DSA_SIG *sig, DSA *dsa);
164 # ifndef OPENSSL_NO_DH
165 static int DH_zencod_bn_mod_exp(const DH *dh, BIGNUM *r, const BIGNUM *a,
166 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
168 static int DH_zencod_generate_key(DH *dh);
169 static int DH_zencod_compute_key(unsigned char *key, const BIGNUM *pub_key,
174 static void RAND_zencod_seed(const void *buf, int num);
175 static int RAND_zencod_rand_bytes(unsigned char *buf, int num);
176 static int RAND_zencod_rand_status(void);
179 static int engine_digests(ENGINE *e, const EVP_MD **digest, const int **nids,
183 static int engine_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
184 const int **nids, int nid);
186 # define ZENCOD_CMD_SO_PATH ENGINE_CMD_BASE
187 static const ENGINE_CMD_DEFN zencod_cmd_defns[] = {
190 "Specifies the path to the 'zenbridge' shared library",
191 ENGINE_CMD_FLAG_STRING},
195 # ifndef OPENSSL_NO_RSA
197 * Our internal RSA_METHOD specific to zencod ENGINE providing pointers to
200 static RSA_METHOD zencod_rsa = {
206 RSA_zencod_rsa_mod_exp,
207 RSA_zencod_bn_mod_exp,
217 # ifndef OPENSSL_NO_DSA
219 * Our internal DSA_METHOD specific to zencod ENGINE providing pointers to
222 static DSA_METHOD zencod_dsa = {
226 DSA_zencod_do_verify,
228 DSA_zencod_bn_mod_exp,
236 # ifndef OPENSSL_NO_DH
238 * Our internal DH_METHOD specific to zencod ENGINE providing pointers to our
241 static DH_METHOD zencod_dh = {
243 DH_zencod_generate_key,
244 DH_zencod_compute_key,
245 DH_zencod_bn_mod_exp,
254 * Our internal RAND_meth specific to zencod ZNGINE providing pointers to our
257 static RAND_METHOD zencod_rand = {
259 RAND_zencod_rand_bytes,
262 RAND_zencod_rand_bytes,
263 RAND_zencod_rand_status
266 /* Constants used when creating the ENGINE */
267 static const char *engine_zencod_id = "zencod";
268 static const char *engine_zencod_name = "ZENCOD hardware engine support";
271 * This internal function is used by ENGINE_zencod () and possibly by the
272 * "dynamic" ENGINE support too ;-)
274 static int bind_helper(ENGINE *e)
277 # ifndef OPENSSL_NO_RSA
278 const RSA_METHOD *meth_rsa;
280 # ifndef OPENSSL_NO_DSA
281 const DSA_METHOD *meth_dsa;
283 # ifndef OPENSSL_NO_DH
284 const DH_METHOD *meth_dh;
287 const RAND_METHOD *meth_rand;
289 if (!ENGINE_set_id(e, engine_zencod_id) ||
290 !ENGINE_set_name(e, engine_zencod_name) ||
291 # ifndef OPENSSL_NO_RSA
292 !ENGINE_set_RSA(e, &zencod_rsa) ||
294 # ifndef OPENSSL_NO_DSA
295 !ENGINE_set_DSA(e, &zencod_dsa) ||
297 # ifndef OPENSSL_NO_DH
298 !ENGINE_set_DH(e, &zencod_dh) ||
300 !ENGINE_set_RAND(e, &zencod_rand) ||
301 !ENGINE_set_destroy_function(e, zencod_destroy) ||
302 !ENGINE_set_init_function(e, zencod_init) ||
303 !ENGINE_set_finish_function(e, zencod_finish) ||
304 !ENGINE_set_ctrl_function(e, zencod_ctrl) ||
305 !ENGINE_set_cmd_defns(e, zencod_cmd_defns) ||
306 !ENGINE_set_digests(e, engine_digests) ||
307 !ENGINE_set_ciphers(e, engine_ciphers)) {
310 # ifndef OPENSSL_NO_RSA
312 * We know that the "PKCS1_SSLeay()" functions hook properly to the
313 * Zencod-specific mod_exp and mod_exp_crt so we use those functions. NB:
314 * We don't use ENGINE_openssl() or anything "more generic" because
315 * something like the RSAref code may not hook properly, and if you own
316 * one of these cards then you have the right to do RSA operations on it
319 meth_rsa = RSA_PKCS1_SSLeay();
321 zencod_rsa.rsa_pub_enc = meth_rsa->rsa_pub_enc;
322 zencod_rsa.rsa_pub_dec = meth_rsa->rsa_pub_dec;
323 zencod_rsa.rsa_priv_enc = meth_rsa->rsa_priv_enc;
324 zencod_rsa.rsa_priv_dec = meth_rsa->rsa_priv_dec;
325 /* meth_rsa->rsa_mod_exp */
326 /* meth_rsa->bn_mod_exp */
327 zencod_rsa.init = meth_rsa->init;
328 zencod_rsa.finish = meth_rsa->finish;
331 # ifndef OPENSSL_NO_DSA
333 * We use OpenSSL meth to supply what we don't provide ;-*)
335 meth_dsa = DSA_OpenSSL();
337 /* meth_dsa->dsa_do_sign */
338 zencod_dsa.dsa_sign_setup = meth_dsa->dsa_sign_setup;
339 /* meth_dsa->dsa_do_verify */
340 zencod_dsa.dsa_mod_exp = meth_dsa->dsa_mod_exp;
341 /* zencod_dsa.bn_mod_exp = meth_dsa->bn_mod_exp ; */
342 zencod_dsa.init = meth_dsa->init;
343 zencod_dsa.finish = meth_dsa->finish;
346 # ifndef OPENSSL_NO_DH
348 * We use OpenSSL meth to supply what we don't provide ;-*)
350 meth_dh = DH_OpenSSL();
352 /* zencod_dh.generate_key = meth_dh->generate_key ; */
353 /* zencod_dh.compute_key = meth_dh->compute_key ; */
354 /* zencod_dh.bn_mod_exp = meth_dh->bn_mod_exp ; */
355 zencod_dh.init = meth_dh->init;
356 zencod_dh.finish = meth_dh->finish;
361 * We use OpenSSL (SSLeay) meth to supply what we don't provide ;-*)
363 meth_rand = RAND_SSLeay();
365 /* meth_rand->seed ; */
366 /* zencod_rand.seed = meth_rand->seed ; */
367 /* meth_rand->bytes ; */
368 /* zencod_rand.bytes = meth_rand->bytes ; */
369 zencod_rand.cleanup = meth_rand->cleanup;
370 zencod_rand.add = meth_rand->add;
371 /* meth_rand->pseudorand ; */
372 /* zencod_rand.pseudorand = meth_rand->pseudorand ; */
373 /* zencod_rand.status = meth_rand->status ; */
374 /* meth_rand->status ; */
376 /* Ensure the zencod error handling is set up */
377 ERR_load_ZENCOD_strings();
382 * As this is only ever called once, there's no need for locking (indeed -
383 * the lock will already be held by our caller!!!)
385 static ENGINE *ENGINE_zencod(void)
388 ENGINE *eng = ENGINE_new();
393 if (!bind_helper(eng)) {
401 # ifdef ENGINE_DYNAMIC_SUPPORT
404 void ENGINE_load_zencod(void)
406 /* Copied from eng_[openssl|dyn].c */
407 ENGINE *toadd = ENGINE_zencod();
416 * This is a process-global DSO handle used for loading and unloading the
417 * ZENBRIDGE library. NB: This is only set (or unset) during an * init () or
418 * finish () call (reference counts permitting) and they're * operating with
419 * global locks, so this should be thread-safe * implicitly.
421 static DSO *zencod_dso = NULL;
423 static t_zencod_test *ptr_zencod_test = NULL;
424 static t_zencod_bytes2bits *ptr_zencod_bytes2bits = NULL;
425 static t_zencod_bits2bytes *ptr_zencod_bits2bytes = NULL;
426 static t_zencod_new_number *ptr_zencod_new_number = NULL;
427 static t_zencod_init_number *ptr_zencod_init_number = NULL;
429 static t_zencod_rsa_mod_exp *ptr_zencod_rsa_mod_exp = NULL;
430 static t_zencod_rsa_mod_exp_crt *ptr_zencod_rsa_mod_exp_crt = NULL;
431 static t_zencod_dsa_do_sign *ptr_zencod_dsa_do_sign = NULL;
432 static t_zencod_dsa_do_verify *ptr_zencod_dsa_do_verify = NULL;
433 static t_zencod_dh_generate_key *ptr_zencod_dh_generate_key = NULL;
434 static t_zencod_dh_compute_key *ptr_zencod_dh_compute_key = NULL;
435 static t_zencod_rand_bytes *ptr_zencod_rand_bytes = NULL;
436 static t_zencod_math_mod_exp *ptr_zencod_math_mod_exp = NULL;
438 static t_zencod_md5_init *ptr_zencod_md5_init = NULL;
439 static t_zencod_md5_update *ptr_zencod_md5_update = NULL;
440 static t_zencod_md5_do_final *ptr_zencod_md5_do_final = NULL;
441 static t_zencod_sha1_init *ptr_zencod_sha1_init = NULL;
442 static t_zencod_sha1_update *ptr_zencod_sha1_update = NULL;
443 static t_zencod_sha1_do_final *ptr_zencod_sha1_do_final = NULL;
445 static t_zencod_xdes_cipher *ptr_zencod_xdes_cipher = NULL;
446 static t_zencod_rc4_cipher *ptr_zencod_rc4_cipher = NULL;
449 * These are the static string constants for the DSO file name and the
450 * function symbol names to bind to.
452 static const char *ZENCOD_LIBNAME = ZEN_LIBRARY;
454 static const char *ZENCOD_Fct_0 = "test_device";
455 static const char *ZENCOD_Fct_1 = "zenbridge_bytes2bits";
456 static const char *ZENCOD_Fct_2 = "zenbridge_bits2bytes";
457 static const char *ZENCOD_Fct_3 = "zenbridge_new_number";
458 static const char *ZENCOD_Fct_4 = "zenbridge_init_number";
460 static const char *ZENCOD_Fct_exp_1 = "zenbridge_rsa_mod_exp";
461 static const char *ZENCOD_Fct_exp_2 = "zenbridge_rsa_mod_exp_crt";
462 static const char *ZENCOD_Fct_dsa_1 = "zenbridge_dsa_do_sign";
463 static const char *ZENCOD_Fct_dsa_2 = "zenbridge_dsa_do_verify";
464 static const char *ZENCOD_Fct_dh_1 = "zenbridge_dh_generate_key";
465 static const char *ZENCOD_Fct_dh_2 = "zenbridge_dh_compute_key";
466 static const char *ZENCOD_Fct_rand_1 = "zenbridge_rand_bytes";
467 static const char *ZENCOD_Fct_math_1 = "zenbridge_math_mod_exp";
469 static const char *ZENCOD_Fct_md5_1 = "zenbridge_md5_init";
470 static const char *ZENCOD_Fct_md5_2 = "zenbridge_md5_update";
471 static const char *ZENCOD_Fct_md5_3 = "zenbridge_md5_do_final";
472 static const char *ZENCOD_Fct_sha1_1 = "zenbridge_sha1_init";
473 static const char *ZENCOD_Fct_sha1_2 = "zenbridge_sha1_update";
474 static const char *ZENCOD_Fct_sha1_3 = "zenbridge_sha1_do_final";
476 static const char *ZENCOD_Fct_xdes_1 = "zenbridge_xdes_cipher";
477 static const char *ZENCOD_Fct_rc4_1 = "zenbridge_rc4_cipher";
480 * Destructor (complements the "ENGINE_zencod ()" constructor)
482 static int zencod_destroy(ENGINE *e)
485 ERR_unload_ZENCOD_strings();
491 * (de)initialisation functions. Control Function
493 static int zencod_init(ENGINE *e)
496 t_zencod_test *ptr_0;
497 t_zencod_bytes2bits *ptr_1;
498 t_zencod_bits2bytes *ptr_2;
499 t_zencod_new_number *ptr_3;
500 t_zencod_init_number *ptr_4;
501 t_zencod_rsa_mod_exp *ptr_exp_1;
502 t_zencod_rsa_mod_exp_crt *ptr_exp_2;
503 t_zencod_dsa_do_sign *ptr_dsa_1;
504 t_zencod_dsa_do_verify *ptr_dsa_2;
505 t_zencod_dh_generate_key *ptr_dh_1;
506 t_zencod_dh_compute_key *ptr_dh_2;
507 t_zencod_rand_bytes *ptr_rand_1;
508 t_zencod_math_mod_exp *ptr_math_1;
509 t_zencod_md5_init *ptr_md5_1;
510 t_zencod_md5_update *ptr_md5_2;
511 t_zencod_md5_do_final *ptr_md5_3;
512 t_zencod_sha1_init *ptr_sha1_1;
513 t_zencod_sha1_update *ptr_sha1_2;
514 t_zencod_sha1_do_final *ptr_sha1_3;
515 t_zencod_xdes_cipher *ptr_xdes_1;
516 t_zencod_rc4_cipher *ptr_rc4_1;
521 * We Should add some tests for non NULL parameters or bad value !!
522 * Stuff to be done ...
525 if (zencod_dso != NULL) {
526 ZENCODerr(ZENCOD_F_ZENCOD_INIT, ZENCOD_R_ALREADY_LOADED);
530 * Trying to load the Library "cryptozen"
532 zencod_dso = DSO_load(NULL, ZENCOD_LIBNAME, NULL, 0);
533 if (zencod_dso == NULL) {
534 ZENCODerr(ZENCOD_F_ZENCOD_INIT, ZENCOD_R_DSO_FAILURE);
539 * Trying to load Function from the Library
543 (t_zencod_bytes2bits *) DSO_bind_func(zencod_dso, ZENCOD_Fct_1))
544 || !(ptr_2 = (t_zencod_bits2bytes *) DSO_bind_func(zencod_dso, ZENCOD_Fct_2))
545 || !(ptr_3 = (t_zencod_new_number *) DSO_bind_func(zencod_dso, ZENCOD_Fct_3))
546 || !(ptr_4 = (t_zencod_init_number *) DSO_bind_func(zencod_dso, ZENCOD_Fct_4))
548 (t_zencod_rsa_mod_exp *) DSO_bind_func(zencod_dso, ZENCOD_Fct_exp_1))
550 (t_zencod_rsa_mod_exp_crt *) DSO_bind_func(zencod_dso, ZENCOD_Fct_exp_2))
552 (t_zencod_dsa_do_sign *) DSO_bind_func(zencod_dso, ZENCOD_Fct_dsa_1))
554 (t_zencod_dsa_do_verify *) DSO_bind_func(zencod_dso, ZENCOD_Fct_dsa_2))
556 (t_zencod_dh_generate_key *) DSO_bind_func(zencod_dso, ZENCOD_Fct_dh_1))
558 (t_zencod_dh_compute_key *) DSO_bind_func(zencod_dso, ZENCOD_Fct_dh_2))
560 (t_zencod_rand_bytes *) DSO_bind_func(zencod_dso, ZENCOD_Fct_rand_1))
562 (t_zencod_math_mod_exp *) DSO_bind_func(zencod_dso, ZENCOD_Fct_math_1))
563 || !(ptr_0 = (t_zencod_test *) DSO_bind_func(zencod_dso, ZENCOD_Fct_0))
565 (t_zencod_md5_init *) DSO_bind_func(zencod_dso, ZENCOD_Fct_md5_1))
567 (t_zencod_md5_update *) DSO_bind_func(zencod_dso, ZENCOD_Fct_md5_2))
569 (t_zencod_md5_do_final *) DSO_bind_func(zencod_dso, ZENCOD_Fct_md5_3))
571 (t_zencod_sha1_init *) DSO_bind_func(zencod_dso, ZENCOD_Fct_sha1_1))
573 (t_zencod_sha1_update *) DSO_bind_func(zencod_dso, ZENCOD_Fct_sha1_2))
575 (t_zencod_sha1_do_final *) DSO_bind_func(zencod_dso, ZENCOD_Fct_sha1_3))
577 (t_zencod_xdes_cipher *) DSO_bind_func(zencod_dso, ZENCOD_Fct_xdes_1))
579 (t_zencod_rc4_cipher *) DSO_bind_func(zencod_dso, ZENCOD_Fct_rc4_1))) {
581 ZENCODerr(ZENCOD_F_ZENCOD_INIT, ZENCOD_R_DSO_FAILURE);
586 * The function from "cryptozen" Library have been correctly loaded so
589 ptr_zencod_test = ptr_0;
590 ptr_zencod_bytes2bits = ptr_1;
591 ptr_zencod_bits2bytes = ptr_2;
592 ptr_zencod_new_number = ptr_3;
593 ptr_zencod_init_number = ptr_4;
594 ptr_zencod_rsa_mod_exp = ptr_exp_1;
595 ptr_zencod_rsa_mod_exp_crt = ptr_exp_2;
596 ptr_zencod_dsa_do_sign = ptr_dsa_1;
597 ptr_zencod_dsa_do_verify = ptr_dsa_2;
598 ptr_zencod_dh_generate_key = ptr_dh_1;
599 ptr_zencod_dh_compute_key = ptr_dh_2;
600 ptr_zencod_rand_bytes = ptr_rand_1;
601 ptr_zencod_math_mod_exp = ptr_math_1;
602 ptr_zencod_test = ptr_0;
603 ptr_zencod_md5_init = ptr_md5_1;
604 ptr_zencod_md5_update = ptr_md5_2;
605 ptr_zencod_md5_do_final = ptr_md5_3;
606 ptr_zencod_sha1_init = ptr_sha1_1;
607 ptr_zencod_sha1_update = ptr_sha1_2;
608 ptr_zencod_sha1_do_final = ptr_sha1_3;
609 ptr_zencod_xdes_cipher = ptr_xdes_1;
610 ptr_zencod_rc4_cipher = ptr_rc4_1;
613 * We should peform a test to see if there is actually any unit runnig on
614 * the system ... Even if the cryptozen library is loaded the module coul
615 * not be loaded on the system ... For now we may just open and close the
619 if (ptr_zencod_test() != 0) {
620 ZENCODerr(ZENCOD_F_ZENCOD_INIT, ZENCOD_R_UNIT_FAILURE);
627 DSO_free(zencod_dso);
630 ptr_zencod_bytes2bits = NULL;
631 ptr_zencod_bits2bytes = NULL;
632 ptr_zencod_new_number = NULL;
633 ptr_zencod_init_number = NULL;
634 ptr_zencod_rsa_mod_exp = NULL;
635 ptr_zencod_rsa_mod_exp_crt = NULL;
636 ptr_zencod_dsa_do_sign = NULL;
637 ptr_zencod_dsa_do_verify = NULL;
638 ptr_zencod_dh_generate_key = NULL;
639 ptr_zencod_dh_compute_key = NULL;
640 ptr_zencod_rand_bytes = NULL;
641 ptr_zencod_math_mod_exp = NULL;
642 ptr_zencod_test = NULL;
643 ptr_zencod_md5_init = NULL;
644 ptr_zencod_md5_update = NULL;
645 ptr_zencod_md5_do_final = NULL;
646 ptr_zencod_sha1_init = NULL;
647 ptr_zencod_sha1_update = NULL;
648 ptr_zencod_sha1_do_final = NULL;
649 ptr_zencod_xdes_cipher = NULL;
650 ptr_zencod_rc4_cipher = NULL;
655 static int zencod_finish(ENGINE *e)
661 * We Should add some tests for non NULL parameters or bad value !!
662 * Stuff to be done ...
664 if (zencod_dso == NULL) {
665 ZENCODerr(ZENCOD_F_ZENCOD_FINISH, ZENCOD_R_NOT_LOADED);
668 if (!DSO_free(zencod_dso)) {
669 ZENCODerr(ZENCOD_F_ZENCOD_FINISH, ZENCOD_R_DSO_FAILURE);
675 ptr_zencod_bytes2bits = NULL;
676 ptr_zencod_bits2bytes = NULL;
677 ptr_zencod_new_number = NULL;
678 ptr_zencod_init_number = NULL;
679 ptr_zencod_rsa_mod_exp = NULL;
680 ptr_zencod_rsa_mod_exp_crt = NULL;
681 ptr_zencod_dsa_do_sign = NULL;
682 ptr_zencod_dsa_do_verify = NULL;
683 ptr_zencod_dh_generate_key = NULL;
684 ptr_zencod_dh_compute_key = NULL;
685 ptr_zencod_rand_bytes = NULL;
686 ptr_zencod_math_mod_exp = NULL;
687 ptr_zencod_test = NULL;
688 ptr_zencod_md5_init = NULL;
689 ptr_zencod_md5_update = NULL;
690 ptr_zencod_md5_do_final = NULL;
691 ptr_zencod_sha1_init = NULL;
692 ptr_zencod_sha1_update = NULL;
693 ptr_zencod_sha1_do_final = NULL;
694 ptr_zencod_xdes_cipher = NULL;
695 ptr_zencod_rc4_cipher = NULL;
700 static int zencod_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) ())
703 int initialised = ((zencod_dso == NULL) ? 0 : 1);
708 * We Should add some tests for non NULL parameters or bad value !!
709 * Stuff to be done ...
712 case ZENCOD_CMD_SO_PATH:
714 ZENCODerr(ZENCOD_F_ZENCOD_CTRL, ERR_R_PASSED_NULL_PARAMETER);
718 ZENCODerr(ZENCOD_F_ZENCOD_CTRL, ZENCOD_R_ALREADY_LOADED);
721 ZENCOD_LIBNAME = (const char *)p;
727 ZENCODerr(ZENCOD_F_ZENCOD_CTRL, ZENCOD_R_CTRL_COMMAND_NOT_IMPLEMENTED);
733 * BIGNUM stuff Functions
735 static int zencod_bn_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
736 const BIGNUM *m, BN_CTX *ctx)
744 ENGINEerr(ZENCOD_F_ZENCOD_BN_MOD_EXP, ZENCOD_R_NOT_LOADED);
748 if (!bn_wexpand(r, m->top + 1)) {
749 ENGINEerr(ZENCOD_F_ZENCOD_BN_MOD_EXP, ZENCOD_R_BN_EXPAND_FAIL);
753 memset(r->d, 0, BN_num_bytes(m));
755 ptr_zencod_init_number(&y, (r->dmax - 1) * sizeof(BN_ULONG) * 8,
756 (unsigned char *)r->d);
761 /* Must invert x and e parameter due to BN mod exp prototype ... */
762 ret = ptr_zencod_math_mod_exp(&y, &e, &x, &n);
765 PERROR("zenbridge_math_mod_exp");
766 ENGINEerr(ZENCOD_F_ZENCOD_BN_MOD_EXP, ZENCOD_R_REQUEST_FAILED);
770 r->top = (BN_num_bits(m) + BN_BITS2 - 1) / BN_BITS2;
776 * RSA stuff Functions
778 # ifndef OPENSSL_NO_RSA
779 static int RSA_zencod_rsa_mod_exp(BIGNUM *r0, const BIGNUM *i, RSA *rsa)
785 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT, ZENCOD_R_NOT_LOADED);
789 if (!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp) {
790 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT,
791 ZENCOD_R_BAD_KEY_COMPONENTS);
795 /* Do in software if argument is too large for hardware */
796 if (RSA_size(rsa) * 8 > ZENBRIDGE_MAX_KEYSIZE_RSA_CRT) {
797 const RSA_METHOD *meth;
799 meth = RSA_PKCS1_SSLeay();
800 return meth->rsa_mod_exp(r0, i, rsa);
802 zen_nb_t y, x, p, q, dmp1, dmq1, iqmp;
804 if (!bn_expand(r0, RSA_size(rsa) * 8)) {
805 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT,
806 ZENCOD_R_BN_EXPAND_FAIL);
809 r0->top = (RSA_size(rsa) * 8 + BN_BITS2 - 1) / BN_BITS2;
813 BIGNUM2ZEN(&p, rsa->p);
814 BIGNUM2ZEN(&q, rsa->q);
815 BIGNUM2ZEN(&dmp1, rsa->dmp1);
816 BIGNUM2ZEN(&dmq1, rsa->dmq1);
817 BIGNUM2ZEN(&iqmp, rsa->iqmp);
819 if (ptr_zencod_rsa_mod_exp_crt(&y, &x, &p, &q, &dmp1, &dmq1, &iqmp) <
821 PERROR("zenbridge_rsa_mod_exp_crt");
822 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT,
823 ZENCOD_R_REQUEST_FAILED);
832 * This function is aliased to RSA_mod_exp (with the mont stuff dropped).
834 static int RSA_zencod_bn_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
835 const BIGNUM *m, BN_CTX *ctx,
842 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP, ZENCOD_R_NOT_LOADED);
846 /* Do in software if argument is too large for hardware */
847 if (BN_num_bits(m) > ZENBRIDGE_MAX_KEYSIZE_RSA) {
848 const RSA_METHOD *meth;
850 meth = RSA_PKCS1_SSLeay();
851 return meth->bn_mod_exp(r, a, p, m, ctx, m_ctx);
855 if (!bn_expand(r, BN_num_bits(m))) {
856 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP, ZENCOD_R_BN_EXPAND_FAIL);
859 r->top = (BN_num_bits(m) + BN_BITS2 - 1) / BN_BITS2;
866 if (ptr_zencod_rsa_mod_exp(&y, &x, &n, &e) < 0) {
867 PERROR("zenbridge_rsa_mod_exp");
868 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP, ZENCOD_R_REQUEST_FAILED);
875 # endif /* !OPENSSL_NO_RSA */
877 # ifndef OPENSSL_NO_DSA
879 * DSA stuff Functions
881 static DSA_SIG *DSA_zencod_do_sign(const unsigned char *dgst, int dlen,
884 zen_nb_t p, q, g, x, y, r, s, data;
893 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_NOT_LOADED);
898 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
902 /* Do in software if argument is too large for hardware */
903 if (BN_num_bits(dsa->p) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN ||
904 BN_num_bits(dsa->g) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN) {
905 const DSA_METHOD *meth;
906 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BAD_KEY_COMPONENTS);
907 meth = DSA_OpenSSL();
908 return meth->dsa_do_sign(dgst, dlen, dsa);
911 if (!(bn_s = BN_new()) || !(bn_r = BN_new())) {
912 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BAD_KEY_COMPONENTS);
916 if (!bn_expand(bn_r, 160) || !bn_expand(bn_s, 160)) {
917 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BN_EXPAND_FAIL);
921 bn_r->top = bn_s->top = (160 + BN_BITS2 - 1) / BN_BITS2;
922 BIGNUM2ZEN(&p, dsa->p);
923 BIGNUM2ZEN(&q, dsa->q);
924 BIGNUM2ZEN(&g, dsa->g);
925 BIGNUM2ZEN(&x, dsa->priv_key);
926 BIGNUM2ZEN(&y, dsa->pub_key);
927 BIGNUM2ZEN(&r, bn_r);
928 BIGNUM2ZEN(&s, bn_s);
931 ypcmem(msg, dgst, 20);
932 ptr_zencod_init_number(&data, 160, msg);
934 if (ptr_zencod_dsa_do_sign(0, &data, &y, &p, &q, &g, &x, &r, &s) < 0) {
935 PERROR("zenbridge_dsa_do_sign");
936 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
940 if (!(sig = DSA_SIG_new())) {
941 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
954 static int DSA_zencod_do_verify(const unsigned char *dgst, int dlen,
955 DSA_SIG *sig, DSA *dsa)
957 zen_nb_t data, p, q, g, y, r, s, v;
965 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_VERIFY, ZENCOD_R_NOT_LOADED);
970 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
974 /* Do in software if argument is too large for hardware */
975 if (BN_num_bits(dsa->p) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN ||
976 BN_num_bits(dsa->g) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN) {
977 const DSA_METHOD *meth;
978 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BAD_KEY_COMPONENTS);
979 meth = DSA_OpenSSL();
980 return meth->dsa_do_verify(dgst, dlen, sig, dsa);
983 BIGNUM2ZEN(&p, dsa->p);
984 BIGNUM2ZEN(&q, dsa->q);
985 BIGNUM2ZEN(&g, dsa->g);
986 BIGNUM2ZEN(&y, dsa->pub_key);
987 BIGNUM2ZEN(&r, sig->r);
988 BIGNUM2ZEN(&s, sig->s);
989 ptr_zencod_init_number(&v, 160, v_data);
990 ypcmem(msg, dgst, 20);
991 ptr_zencod_init_number(&data, 160, msg);
994 ptr_zencod_dsa_do_verify(0, &data, &p, &q, &g, &y, &r, &s,
996 PERROR("zenbridge_dsa_do_verify");
997 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_VERIFY, ZENCOD_R_REQUEST_FAILED);
1001 return ((ret == 0) ? 1 : ret);
1004 static int DSA_zencod_bn_mod_exp(DSA *dsa, BIGNUM *r, BIGNUM *a,
1005 const BIGNUM *p, const BIGNUM *m,
1006 BN_CTX *ctx, BN_MONT_CTX *m_ctx)
1010 return zencod_bn_mod_exp(r, a, p, m, ctx);
1012 # endif /* !OPENSSL_NO_DSA */
1014 # ifndef OPENSSl_NO_DH
1016 * DH stuff Functions
1018 static int DH_zencod_generate_key(DH *dh)
1020 BIGNUM *bn_prv = NULL;
1021 BIGNUM *bn_pub = NULL;
1022 zen_nb_t y, x, g, p;
1028 ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_NOT_LOADED);
1034 bn_prv = dh->priv_key;
1037 if (!(bn_prv = BN_new())) {
1038 ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_BN_EXPAND_FAIL);
1046 bn_pub = dh->pub_key;
1047 else if (!(bn_pub = BN_new())) {
1048 ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_BN_EXPAND_FAIL);
1053 if (!bn_wexpand(bn_prv, dh->p->dmax) || !bn_wexpand(bn_pub, dh->p->dmax)) {
1054 ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_BN_EXPAND_FAIL);
1057 bn_prv->top = dh->p->top;
1058 bn_pub->top = dh->p->top;
1060 /* Convert all keys */
1061 BIGNUM2ZEN(&p, dh->p);
1062 BIGNUM2ZEN(&g, dh->g);
1063 BIGNUM2ZEN(&y, bn_pub);
1064 BIGNUM2ZEN(&x, bn_prv);
1065 x.len = DH_size(dh) * 8;
1067 /* Adjust the lengths of P and G */
1068 p.len = ptr_zencod_bytes2bits(p.data, ZEN_BYTES(p.len));
1069 g.len = ptr_zencod_bytes2bits(g.data, ZEN_BYTES(g.len));
1071 /* Send the request to the driver */
1072 if (ptr_zencod_dh_generate_key(&y, &x, &g, &p, generate_x) < 0) {
1073 perror("zenbridge_dh_generate_key");
1074 ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_REQUEST_FAILED);
1078 dh->priv_key = bn_prv;
1079 dh->pub_key = bn_pub;
1092 static int DH_zencod_compute_key(unsigned char *key, const BIGNUM *pub_key,
1095 zen_nb_t y, x, p, k;
1100 ENGINEerr(ZENCOD_F_ZENCOD_DH_COMPUTE, ZENCOD_R_NOT_LOADED);
1104 if (!dh->priv_key) {
1105 ENGINEerr(ZENCOD_F_ZENCOD_DH_COMPUTE, ZENCOD_R_BAD_KEY_COMPONENTS);
1109 /* Convert all keys */
1110 BIGNUM2ZEN(&y, pub_key);
1111 BIGNUM2ZEN(&x, dh->priv_key);
1112 BIGNUM2ZEN(&p, dh->p);
1113 ptr_zencod_init_number(&k, p.len, key);
1115 /* Adjust the lengths */
1116 p.len = ptr_zencod_bytes2bits(p.data, ZEN_BYTES(p.len));
1117 y.len = ptr_zencod_bytes2bits(y.data, ZEN_BYTES(y.len));
1118 x.len = ptr_zencod_bytes2bits(x.data, ZEN_BYTES(x.len));
1120 /* Call the hardware */
1121 if (ptr_zencod_dh_compute_key(&k, &y, &x, &p) < 0) {
1122 ENGINEerr(ZENCOD_F_ZENCOD_DH_COMPUTE, ZENCOD_R_REQUEST_FAILED);
1126 /* The key must be written MSB -> LSB */
1127 k.len = ptr_zencod_bytes2bits(k.data, ZEN_BYTES(k.len));
1128 esrever(key, ZEN_BYTES(k.len));
1130 return ZEN_BYTES(k.len);
1133 static int DH_zencod_bn_mod_exp(const DH *dh, BIGNUM *r, const BIGNUM *a,
1134 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
1139 return zencod_bn_mod_exp(r, a, p, m, ctx);
1141 # endif /* !OPENSSL_NO_DH */
1144 * RAND stuff Functions
1146 static void RAND_zencod_seed(const void *buf, int num)
1149 * Nothing to do cause our crypto accelerator provide a true random
1154 static int RAND_zencod_rand_bytes(unsigned char *buf, int num)
1161 ENGINEerr(ZENCOD_F_ZENCOD_RAND, ZENCOD_R_NOT_LOADED);
1165 ptr_zencod_init_number(&r, num * 8, buf);
1167 if (ptr_zencod_rand_bytes(&r, ZENBRIDGE_RNG_DIRECT) < 0) {
1168 PERROR("zenbridge_rand_bytes");
1169 ENGINEerr(ZENCOD_F_ZENCOD_RAND, ZENCOD_R_REQUEST_FAILED);
1176 static int RAND_zencod_rand_status(void)
1184 * This stuff is needed if this ENGINE is being compiled into a
1185 * self-contained shared-library.
1187 # ifdef ENGINE_DYNAMIC_SUPPORT
1188 static int bind_fn(ENGINE *e, const char *id)
1191 if (id && (strcmp(id, engine_zencod_id) != 0)) {
1194 if (!bind_helper(e)) {
1201 IMPLEMENT_DYNAMIC_CHECK_FN()
1202 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
1203 # endif /* ENGINE_DYNAMIC_SUPPORT */
1205 * Adding "Digest" and "Cipher" tools ...
1206 * This is in development ... ;-)
1207 * In orfer to code this, i refer to hw_openbsd_dev_crypto and openssl engine made by Geoff Thorpe (if i'm rigth),
1208 * and evp, sha md5 definitions etc ...
1210 /* First add some include ... */
1211 # include <openssl/evp.h>
1212 # include <openssl/sha.h>
1213 # include <openssl/md5.h>
1214 # include <openssl/rc4.h>
1215 # include <openssl/des.h>
1216 /* Some variables declaration ... */
1218 * DONS: Disable symetric computation except DES and 3DES, but let part
1221 /* static int engine_digest_nids [ ] = { NID_sha1, NID_md5 } ; */
1222 static int engine_digest_nids[] = { };
1224 static int engine_digest_nids_num = 0;
1226 * static int engine_cipher_nids [ ] = { NID_rc4, NID_rc4_40, NID_des_cbc,
1227 * NID_des_ede3_cbc } ;
1229 static int engine_cipher_nids[] = { NID_des_cbc, NID_des_ede3_cbc };
1231 static int engine_cipher_nids_num = 2;
1233 /* Function prototype ... */
1235 static int engine_sha1_init(EVP_MD_CTX *ctx);
1236 static int engine_sha1_update(EVP_MD_CTX *ctx, const void *data,
1237 unsigned long count);
1238 static int engine_sha1_final(EVP_MD_CTX *ctx, unsigned char *md);
1241 static int engine_md5_init(EVP_MD_CTX *ctx);
1242 static int engine_md5_update(EVP_MD_CTX *ctx, const void *data,
1243 unsigned long count);
1244 static int engine_md5_final(EVP_MD_CTX *ctx, unsigned char *md);
1246 static int engine_md_cleanup(EVP_MD_CTX *ctx);
1247 static int engine_md_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from);
1250 static int engine_rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1251 const unsigned char *iv, int enc);
1252 static int engine_rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1253 const unsigned char *in, unsigned int inl);
1256 static int engine_des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1257 const unsigned char *iv, int enc);
1258 static int engine_des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1259 const unsigned char *in, unsigned int inl);
1262 static int engine_des_ede3_init_key(EVP_CIPHER_CTX *ctx,
1263 const unsigned char *key,
1264 const unsigned char *iv, int enc);
1265 static int engine_des_ede3_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1266 const unsigned char *in,
1269 static int engine_cipher_cleanup(EVP_CIPHER_CTX *ctx); /* cleanup ctx */
1271 /* The one for SHA ... */
1272 static const EVP_MD engine_sha1_md = {
1274 NID_sha1WithRSAEncryption,
1276 EVP_MD_FLAG_ONESHOT,
1280 * EVP_MD_FLAG_ONESHOT = x0001 digest can only handle a single block *
1281 * XXX: set according to device info ...
1286 engine_md_copy, /* dev_crypto_sha_copy */
1287 engine_md_cleanup, /* dev_crypto_sha_cleanup */
1288 EVP_PKEY_RSA_method,
1290 /* sizeof ( EVP_MD * ) + sizeof ( SHA_CTX ) */
1293 * sizeof ( MD_CTX_DATA ) The message digest data structure ...
1297 /* The one for MD5 ... */
1298 static const EVP_MD engine_md5_md = {
1300 NID_md5WithRSAEncryption,
1302 EVP_MD_FLAG_ONESHOT,
1306 * EVP_MD_FLAG_ONESHOT = x0001 digest can only handle a single block *
1307 * XXX: set according to device info ...
1312 engine_md_copy, /* dev_crypto_md5_copy */
1313 engine_md_cleanup, /* dev_crypto_md5_cleanup */
1314 EVP_PKEY_RSA_method,
1316 /* sizeof ( EVP_MD * ) + sizeof ( MD5_CTX ) */
1319 * sizeof ( MD_CTX_DATA ) The message digest data structure ...
1323 /* The one for RC4 ... */
1324 # define EVP_RC4_KEY_SIZE 16
1326 /* Try something static ... */
1330 unsigned char rc4_state[260];
1333 # define rc4_data(ctx) ( (EVP_RC4_KEY *) ( ctx )->cipher_data )
1335 static const EVP_CIPHER engine_rc4 = {
1338 16, /* EVP_RC4_KEY_SIZE should be 128 bits */
1339 0, /* FIXME: key should be up to 256 bytes */
1340 EVP_CIPH_VARIABLE_LENGTH,
1341 engine_rc4_init_key,
1343 engine_cipher_cleanup,
1344 sizeof(NEW_ZEN_RC4_KEY),
1350 /* The one for RC4_40 ... */
1351 static const EVP_CIPHER engine_rc4_40 = {
1356 EVP_CIPH_VARIABLE_LENGTH,
1357 engine_rc4_init_key,
1359 engine_cipher_cleanup,
1360 sizeof(NEW_ZEN_RC4_KEY),
1366 /* The one for DES ... */
1368 /* Try something static ... */
1370 unsigned char des_key[24];
1371 unsigned char des_iv[8];
1374 static const EVP_CIPHER engine_des_cbc = {
1377 0 | EVP_CIPH_CBC_MODE,
1378 engine_des_init_key,
1379 engine_des_cbc_cipher,
1380 engine_cipher_cleanup,
1381 sizeof(ZEN_DES_KEY),
1382 EVP_CIPHER_set_asn1_iv,
1383 EVP_CIPHER_get_asn1_iv,
1388 /* The one for 3DES ... */
1390 /* Try something static ... */
1392 unsigned char des3_key[24];
1393 unsigned char des3_iv[8];
1396 # define des_data(ctx) ( (DES_EDE_KEY *) ( ctx )->cipher_data )
1398 static const EVP_CIPHER engine_des_ede3_cbc = {
1401 0 | EVP_CIPH_CBC_MODE,
1402 engine_des_ede3_init_key,
1403 engine_des_ede3_cbc_cipher,
1404 engine_cipher_cleanup,
1405 sizeof(ZEN_3DES_KEY),
1406 EVP_CIPHER_set_asn1_iv,
1407 EVP_CIPHER_get_asn1_iv,
1412 /* General function cloned on hw_openbsd_dev_crypto one ... */
1413 static int engine_digests(ENGINE *e, const EVP_MD **digest, const int **nids,
1417 # ifdef DEBUG_ZENCOD_MD
1418 fprintf(stderr, "\t=>Function : static int engine_digests () called !\n");
1422 /* We are returning a list of supported nids */
1423 *nids = engine_digest_nids;
1424 return engine_digest_nids_num;
1426 /* We are being asked for a specific digest */
1427 if (nid == NID_md5) {
1428 *digest = &engine_md5_md;
1429 } else if (nid == NID_sha1) {
1430 *digest = &engine_sha1_md;
1439 * SHA stuff Functions
1441 static int engine_sha1_init(EVP_MD_CTX *ctx)
1446 /* Test with zenbridge library ... */
1447 to_return = ptr_zencod_sha1_init((ZEN_MD_DATA *)ctx->md_data);
1448 to_return = !to_return;
1453 static int engine_sha1_update(EVP_MD_CTX *ctx, const void *data,
1454 unsigned long count)
1460 /* Convert parameters ... */
1462 input.data = (unsigned char *)data;
1464 /* Test with zenbridge library ... */
1466 ptr_zencod_sha1_update((ZEN_MD_DATA *)ctx->md_data,
1467 (const zen_nb_t *)&input);
1468 to_return = !to_return;
1473 static int engine_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
1479 /* Convert parameters ... */
1480 output.len = SHA_DIGEST_LENGTH;
1483 /* Test with zenbridge library ... */
1485 ptr_zencod_sha1_do_final((ZEN_MD_DATA *)ctx->md_data,
1486 (zen_nb_t *) & output);
1487 to_return = !to_return;
1493 * MD5 stuff Functions
1495 static int engine_md5_init(EVP_MD_CTX *ctx)
1500 /* Test with zenbridge library ... */
1501 to_return = ptr_zencod_md5_init((ZEN_MD_DATA *)ctx->md_data);
1502 to_return = !to_return;
1507 static int engine_md5_update(EVP_MD_CTX *ctx, const void *data,
1508 unsigned long count)
1514 /* Convert parameters ... */
1516 input.data = (unsigned char *)data;
1518 /* Test with zenbridge library ... */
1520 ptr_zencod_md5_update((ZEN_MD_DATA *)ctx->md_data,
1521 (const zen_nb_t *)&input);
1522 to_return = !to_return;
1527 static int engine_md5_final(EVP_MD_CTX *ctx, unsigned char *md)
1533 /* Convert parameters ... */
1534 output.len = MD5_DIGEST_LENGTH;
1537 /* Test with zenbridge library ... */
1539 ptr_zencod_md5_do_final((ZEN_MD_DATA *)ctx->md_data,
1540 (zen_nb_t *) & output);
1541 to_return = !to_return;
1546 static int engine_md_cleanup(EVP_MD_CTX *ctx)
1549 ZEN_MD_DATA *zen_md_data = (ZEN_MD_DATA *)ctx->md_data;
1551 OPENSSL_free(zen_md_data->HashBuffer);
1552 zen_md_data->HashBufferSize = 0;
1553 ctx->md_data = NULL;
1557 static int engine_md_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from)
1559 const ZEN_MD_DATA *from_md = (ZEN_MD_DATA *)from->md_data;
1560 ZEN_MD_DATA *to_md = (ZEN_MD_DATA *)to->md_data;
1562 to_md->HashBuffer = OPENSSL_malloc(from_md->HashBufferSize);
1563 if (to_md->HashBuffer == NULL)
1565 memcpy(to_md->HashBuffer, from_md->HashBuffer, from_md->HashBufferSize);
1570 /* General function cloned on hw_openbsd_dev_crypto one ... */
1571 static int engine_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
1572 const int **nids, int nid)
1576 /* We are returning a list of supported nids */
1577 *nids = engine_cipher_nids;
1578 return engine_cipher_nids_num;
1580 /* We are being asked for a specific cipher */
1581 if (nid == NID_rc4) {
1582 *cipher = &engine_rc4;
1583 } else if (nid == NID_rc4_40) {
1584 *cipher = &engine_rc4_40;
1585 } else if (nid == NID_des_cbc) {
1586 *cipher = &engine_des_cbc;
1587 } else if (nid == NID_des_ede3_cbc) {
1588 *cipher = &engine_des_ede3_cbc;
1597 static int engine_rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1598 const unsigned char *iv, int enc)
1603 NEW_ZEN_RC4_KEY *tmp_rc4_key = NULL;
1605 tmp_rc4_key = (NEW_ZEN_RC4_KEY *) (ctx->cipher_data);
1606 tmp_rc4_key->first = 0;
1607 tmp_rc4_key->len = ctx->key_len;
1608 tmp_rc4_key->rc4_state[0] = 0x00;
1609 tmp_rc4_key->rc4_state[2] = 0x00;
1610 nb = 256 / ctx->key_len;
1611 for (i = 0; i < nb; i++) {
1612 memcpy(&(tmp_rc4_key->rc4_state[4 + i * ctx->key_len]), key,
1621 static int engine_rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1622 const unsigned char *in, unsigned int in_len)
1625 zen_nb_t output, input;
1628 NEW_ZEN_RC4_KEY *tmp_rc4_key = NULL;
1630 /* Convert parameters ... */
1632 input.data = (unsigned char *)in;
1633 output.len = in_len;
1634 output.data = (unsigned char *)out;
1636 tmp_rc4_key = ((NEW_ZEN_RC4_KEY *) (ctx->cipher_data));
1638 rc4key.data = &(tmp_rc4_key->rc4_state[0]);
1640 /* Test with zenbridge library ... */
1642 ptr_zencod_rc4_cipher(&output, &input, (const zen_nb_t *)&rc4key,
1643 &(tmp_rc4_key->rc4_state[0]),
1644 &(tmp_rc4_key->rc4_state[3]),
1645 !tmp_rc4_key->first);
1646 to_return = !to_return;
1648 /* Update encryption state ... */
1649 tmp_rc4_key->first = 1;
1655 static int engine_des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1656 const unsigned char *iv, int enc)
1659 ZEN_DES_KEY *tmp_des_key = NULL;
1662 tmp_des_key = (ZEN_DES_KEY *) (ctx->cipher_data);
1663 memcpy(&(tmp_des_key->des_key[0]), key, 8);
1664 memcpy(&(tmp_des_key->des_key[8]), key, 8);
1665 memcpy(&(tmp_des_key->des_key[16]), key, 8);
1666 memcpy(&(tmp_des_key->des_iv[0]), iv, 8);
1673 static int engine_des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1674 const unsigned char *in, unsigned int inl)
1677 zen_nb_t output, input;
1678 zen_nb_t deskey_1, deskey_2, deskey_3, iv;
1681 /* Convert parameters ... */
1683 input.data = (unsigned char *)in;
1687 /* Set key parameters ... */
1692 (unsigned char *)((ZEN_DES_KEY *) (ctx->cipher_data))->des_key;
1694 (unsigned char *)&((ZEN_DES_KEY *) (ctx->cipher_data))->des_key[8];
1696 (unsigned char *)&((ZEN_DES_KEY *) (ctx->cipher_data))->des_key[16];
1698 /* Key correct iv ... */
1699 memcpy(((ZEN_DES_KEY *) (ctx->cipher_data))->des_iv, ctx->iv, 8);
1701 iv.data = (unsigned char *)((ZEN_DES_KEY *) (ctx->cipher_data))->des_iv;
1703 if (ctx->encrypt == 0) {
1704 memcpy(ctx->iv, &(input.data[input.len - 8]), 8);
1707 /* Test with zenbridge library ... */
1708 to_return = ptr_zencod_xdes_cipher(&output, &input,
1709 (zen_nb_t *) & deskey_1,
1710 (zen_nb_t *) & deskey_2,
1711 (zen_nb_t *) & deskey_3, &iv,
1713 to_return = !to_return;
1716 * But we need to set up the rigth iv ... Test ENCRYPT or DECRYPT mode to
1719 if (ctx->encrypt == 1) {
1720 memcpy(ctx->iv, &(output.data[output.len - 8]), 8);
1726 static int engine_des_ede3_init_key(EVP_CIPHER_CTX *ctx,
1727 const unsigned char *key,
1728 const unsigned char *iv, int enc)
1731 ZEN_3DES_KEY *tmp_3des_key = NULL;
1734 tmp_3des_key = (ZEN_3DES_KEY *) (ctx->cipher_data);
1735 memcpy(&(tmp_3des_key->des3_key[0]), key, 24);
1736 memcpy(&(tmp_3des_key->des3_iv[0]), iv, 8);
1743 static int engine_des_ede3_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1744 const unsigned char *in,
1745 unsigned int in_len)
1748 zen_nb_t output, input;
1749 zen_nb_t deskey_1, deskey_2, deskey_3, iv;
1752 /* Convert parameters ... */
1754 input.data = (unsigned char *)in;
1755 output.len = in_len;
1763 (unsigned char *)((ZEN_3DES_KEY *) (ctx->cipher_data))->des3_key;
1765 (unsigned char *)&((ZEN_3DES_KEY *) (ctx->cipher_data))->des3_key[8];
1767 (unsigned char *)&((ZEN_3DES_KEY *) (ctx->cipher_data))->des3_key[16];
1769 /* Key correct iv ... */
1770 memcpy(((ZEN_3DES_KEY *) (ctx->cipher_data))->des3_iv, ctx->iv, 8);
1772 iv.data = (unsigned char *)((ZEN_3DES_KEY *) (ctx->cipher_data))->des3_iv;
1774 if (ctx->encrypt == 0) {
1775 memcpy(ctx->iv, &(input.data[input.len - 8]), 8);
1778 /* Test with zenbridge library ... */
1779 to_return = ptr_zencod_xdes_cipher(&output, &input,
1780 (zen_nb_t *) & deskey_1,
1781 (zen_nb_t *) & deskey_2,
1782 (zen_nb_t *) & deskey_3, &iv,
1784 to_return = !to_return;
1786 if (ctx->encrypt == 1) {
1787 memcpy(ctx->iv, &(output.data[output.len - 8]), 8);
1793 static int engine_cipher_cleanup(EVP_CIPHER_CTX *ctx)
1796 /* Set the key pointer ... */
1797 if (ctx->cipher->nid == NID_rc4 || ctx->cipher->nid == NID_rc4_40) {
1798 } else if (ctx->cipher->nid == NID_des_cbc) {
1799 } else if (ctx->cipher->nid == NID_des_ede3_cbc) {
1805 # endif /* !OPENSSL_NO_HW_ZENCOD */
1806 #endif /* !OPENSSL_NO_HW */