1 /* crypto/engine/hw_zencod.c */
2 /* Written by Fred Donnat (frederic.donnat@zencod.com) for "zencod"
3 * engine integration in order to redirect crypto computing on a crypto
4 * hardware accelerator zenssl32 ;-)
7 * Revision : 17 Ju7 2002
8 * Version : zencod_engine-0.9.7
11 /* ====================================================================
12 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
18 * 1. Redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in
23 * the documentation and/or other materials provided with the
26 * 3. All advertising materials mentioning features or use of this
27 * software must display the following acknowledgment:
28 * "This product includes software developed by the OpenSSL Project
29 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
31 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
32 * endorse or promote products derived from this software without
33 * prior written permission. For written permission, please contact
34 * licensing@OpenSSL.org.
36 * 5. Products derived from this software may not be called "OpenSSL"
37 * nor may "OpenSSL" appear in their names without prior written
38 * permission of the OpenSSL Project.
40 * 6. Redistributions of any form whatsoever must retain the following
42 * "This product includes software developed by the OpenSSL Project
43 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
45 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
46 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
48 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
49 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
50 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
51 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
52 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
54 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
55 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
56 * OF THE POSSIBILITY OF SUCH DAMAGE.
57 * ====================================================================
59 * This product includes cryptographic software written by Eric Young
60 * (eay@cryptsoft.com). This product includes software written by Tim
61 * Hudson (tjh@cryptsoft.com).
66 /* ENGINE general include */
68 #include <openssl/crypto.h>
69 #include <openssl/dso.h>
70 #include <openssl/engine.h>
73 #ifndef OPENSSL_NO_HW_ZENCOD
76 # include "hw_zencod.h"
78 # include "vendor_defns/hw_zencod.h"
81 #define ZENCOD_LIB_NAME "zencod engine"
82 #include "hw_zencod_err.c"
84 #define FAIL_TO_SOFTWARE -15
86 #define ZEN_LIBRARY "zenbridge"
89 # define PERROR(s) perror(s)
90 # define CHEESE() fputs("## [ZenEngine] ## " __FUNCTION__ "\n", stderr)
99 static inline void esrever ( unsigned char *d, int l )
101 for(;--l>0;--l,d++){*d^=*(d+l);*(d+l)^=*d;*d^=*(d+l);}
104 static inline void ypcmem ( unsigned char *d, const unsigned char *s, int l )
106 for(d+=l;l--;)*--d=*s++;
109 static __inline void esrever ( unsigned char *d, int l )
111 for(;--l>0;--l,d++){*d^=*(d+l);*(d+l)^=*d;*d^=*(d+l);}
114 static __inline void ypcmem ( unsigned char *d, const unsigned char *s, int l )
116 for(d+=l;l--;)*--d=*s++;
121 #define BIGNUM2ZEN(n, bn) (ptr_zencod_init_number((n), \
122 (unsigned long) ((bn)->top * BN_BITS2), \
123 (unsigned char *) ((bn)->d)))
125 #define ZEN_BITS(n, bytes) (ptr_zencod_bytes2bits((unsigned char *) (n), (unsigned long) (bytes)))
126 #define ZEN_BYTES(bits) (ptr_zencod_bits2bytes((unsigned long) (bits)))
129 /* Function for ENGINE detection and control */
130 static int zencod_destroy ( ENGINE *e ) ;
131 static int zencod_init ( ENGINE *e ) ;
132 static int zencod_finish ( ENGINE *e ) ;
133 static int zencod_ctrl ( ENGINE *e, int cmd, long i, void *p, void (*f) () ) ;
136 static int zencod_bn_mod_exp ( BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx ) ;
139 #ifndef OPENSSL_NO_RSA
140 static int RSA_zencod_rsa_mod_exp ( BIGNUM *r0, const BIGNUM *I, RSA *rsa ) ;
141 static int RSA_zencod_bn_mod_exp ( BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
142 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx ) ;
146 #ifndef OPENSSL_NO_DSA
147 static int DSA_zencod_bn_mod_exp ( DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
148 BN_MONT_CTX *m_ctx ) ;
150 static DSA_SIG *DSA_zencod_do_sign ( const unsigned char *dgst, int dlen, DSA *dsa ) ;
151 static int DSA_zencod_do_verify ( const unsigned char *dgst, int dgst_len, DSA_SIG *sig,
156 #ifndef OPENSSL_NO_DH
157 static int DH_zencod_bn_mod_exp ( const DH *dh, BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
158 BN_MONT_CTX *m_ctx ) ;
159 static int DH_zencod_generate_key ( DH *dh ) ;
160 static int DH_zencod_compute_key ( unsigned char *key, const BIGNUM *pub_key, DH *dh ) ;
164 static void RAND_zencod_seed ( const void *buf, int num ) ;
165 static int RAND_zencod_rand_bytes ( unsigned char *buf, int num ) ;
166 static int RAND_zencod_rand_status ( void ) ;
169 static int engine_digests ( ENGINE *e, const EVP_MD **digest, const int **nids, int nid ) ;
172 static int engine_ciphers ( ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid ) ;
175 #define ZENCOD_CMD_SO_PATH ENGINE_CMD_BASE
176 static const ENGINE_CMD_DEFN zencod_cmd_defns [ ] =
178 { ZENCOD_CMD_SO_PATH,
180 "Specifies the path to the 'zenbridge' shared library",
181 ENGINE_CMD_FLAG_STRING},
186 #ifndef OPENSSL_NO_RSA
187 /* Our internal RSA_METHOD specific to zencod ENGINE providing pointers to our function */
188 static RSA_METHOD zencod_rsa =
195 RSA_zencod_rsa_mod_exp,
196 RSA_zencod_bn_mod_exp,
206 #ifndef OPENSSL_NO_DSA
207 /* Our internal DSA_METHOD specific to zencod ENGINE providing pointers to our function */
208 static DSA_METHOD zencod_dsa =
213 DSA_zencod_do_verify,
215 DSA_zencod_bn_mod_exp,
223 #ifndef OPENSSL_NO_DH
224 /* Our internal DH_METHOD specific to zencod ENGINE providing pointers to our function */
225 static DH_METHOD zencod_dh =
228 DH_zencod_generate_key,
229 DH_zencod_compute_key,
230 DH_zencod_bn_mod_exp,
238 /* Our internal RAND_meth specific to zencod ZNGINE providing pointers to our function */
239 static RAND_METHOD zencod_rand =
242 RAND_zencod_rand_bytes,
245 RAND_zencod_rand_bytes,
246 RAND_zencod_rand_status
250 /* Constants used when creating the ENGINE */
251 static const char *engine_zencod_id = "zencod";
252 static const char *engine_zencod_name = "ZENCOD hardware engine support";
255 /* This internal function is used by ENGINE_zencod () and possibly by the
256 * "dynamic" ENGINE support too ;-)
258 static int bind_helper ( ENGINE *e )
261 #ifndef OPENSSL_NO_RSA
262 const RSA_METHOD *meth_rsa ;
264 #ifndef OPENSSL_NO_DSA
265 const DSA_METHOD *meth_dsa ;
267 #ifndef OPENSSL_NO_DH
268 const DH_METHOD *meth_dh ;
271 const RAND_METHOD *meth_rand ;
274 if ( !ENGINE_set_id ( e, engine_zencod_id ) ||
275 !ENGINE_set_name ( e, engine_zencod_name ) ||
276 #ifndef OPENSSL_NO_RSA
277 !ENGINE_set_RSA ( e, &zencod_rsa ) ||
279 #ifndef OPENSSL_NO_DSA
280 !ENGINE_set_DSA ( e, &zencod_dsa ) ||
282 #ifndef OPENSSL_NO_DH
283 !ENGINE_set_DH ( e, &zencod_dh ) ||
285 !ENGINE_set_RAND ( e, &zencod_rand ) ||
287 !ENGINE_set_destroy_function ( e, zencod_destroy ) ||
288 !ENGINE_set_init_function ( e, zencod_init ) ||
289 !ENGINE_set_finish_function ( e, zencod_finish ) ||
290 !ENGINE_set_ctrl_function ( e, zencod_ctrl ) ||
291 !ENGINE_set_cmd_defns ( e, zencod_cmd_defns ) ||
292 !ENGINE_set_digests ( e, engine_digests ) ||
293 !ENGINE_set_ciphers ( e, engine_ciphers ) ) {
297 #ifndef OPENSSL_NO_RSA
298 /* We know that the "PKCS1_SSLeay()" functions hook properly
299 * to the Zencod-specific mod_exp and mod_exp_crt so we use
300 * those functions. NB: We don't use ENGINE_openssl() or
301 * anything "more generic" because something like the RSAref
302 * code may not hook properly, and if you own one of these
303 * cards then you have the right to do RSA operations on it
306 meth_rsa = RSA_PKCS1_SSLeay () ;
308 zencod_rsa.rsa_pub_enc = meth_rsa->rsa_pub_enc ;
309 zencod_rsa.rsa_pub_dec = meth_rsa->rsa_pub_dec ;
310 zencod_rsa.rsa_priv_enc = meth_rsa->rsa_priv_enc ;
311 zencod_rsa.rsa_priv_dec = meth_rsa->rsa_priv_dec ;
312 /* meth_rsa->rsa_mod_exp */
313 /* meth_rsa->bn_mod_exp */
314 zencod_rsa.init = meth_rsa->init ;
315 zencod_rsa.finish = meth_rsa->finish ;
318 #ifndef OPENSSL_NO_DSA
319 /* We use OpenSSL meth to supply what we don't provide ;-*)
321 meth_dsa = DSA_OpenSSL () ;
323 /* meth_dsa->dsa_do_sign */
324 zencod_dsa.dsa_sign_setup = meth_dsa->dsa_sign_setup ;
325 /* meth_dsa->dsa_do_verify */
326 zencod_dsa.dsa_mod_exp = meth_dsa->dsa_mod_exp ;
327 /* zencod_dsa.bn_mod_exp = meth_dsa->bn_mod_exp ; */
328 zencod_dsa.init = meth_dsa->init ;
329 zencod_dsa.finish = meth_dsa->finish ;
332 #ifndef OPENSSL_NO_DH
333 /* We use OpenSSL meth to supply what we don't provide ;-*)
335 meth_dh = DH_OpenSSL () ;
337 /* zencod_dh.generate_key = meth_dh->generate_key ; */
338 /* zencod_dh.compute_key = meth_dh->compute_key ; */
339 /* zencod_dh.bn_mod_exp = meth_dh->bn_mod_exp ; */
340 zencod_dh.init = meth_dh->init ;
341 zencod_dh.finish = meth_dh->finish ;
345 /* We use OpenSSL (SSLeay) meth to supply what we don't provide ;-*)
347 meth_rand = RAND_SSLeay () ;
349 /* meth_rand->seed ; */
350 /* zencod_rand.seed = meth_rand->seed ; */
351 /* meth_rand->bytes ; */
352 /* zencod_rand.bytes = meth_rand->bytes ; */
353 zencod_rand.cleanup = meth_rand->cleanup ;
354 zencod_rand.add = meth_rand->add ;
355 /* meth_rand->pseudorand ; */
356 /* zencod_rand.pseudorand = meth_rand->pseudorand ; */
357 /* zencod_rand.status = meth_rand->status ; */
358 /* meth_rand->status ; */
360 /* Ensure the zencod error handling is set up */
361 ERR_load_ZENCOD_strings () ;
366 /* As this is only ever called once, there's no need for locking
367 * (indeed - the lock will already be held by our caller!!!)
369 ENGINE *ENGINE_zencod ( void )
372 ENGINE *eng = ENGINE_new () ;
377 if ( !bind_helper ( eng ) ) {
378 ENGINE_free ( eng ) ;
386 void ENGINE_load_zencod ( void )
388 /* Copied from eng_[openssl|dyn].c */
389 ENGINE *toadd = ENGINE_zencod ( ) ;
390 if ( !toadd ) return ;
391 ENGINE_add ( toadd ) ;
392 ENGINE_free ( toadd ) ;
393 ERR_clear_error ( ) ;
397 /* This is a process-global DSO handle used for loading and unloading
398 * the ZENBRIDGE library.
399 * NB: This is only set (or unset) during an * init () or finish () call
400 * (reference counts permitting) and they're * operating with global locks,
401 * so this should be thread-safe * implicitly.
403 static DSO *zencod_dso = NULL ;
405 static t_zencod_test *ptr_zencod_test = NULL ;
406 static t_zencod_bytes2bits *ptr_zencod_bytes2bits = NULL ;
407 static t_zencod_bits2bytes *ptr_zencod_bits2bytes = NULL ;
408 static t_zencod_new_number *ptr_zencod_new_number = NULL ;
409 static t_zencod_init_number *ptr_zencod_init_number = NULL ;
411 static t_zencod_rsa_mod_exp *ptr_zencod_rsa_mod_exp = NULL ;
412 static t_zencod_rsa_mod_exp_crt *ptr_zencod_rsa_mod_exp_crt = NULL ;
413 static t_zencod_dsa_do_sign *ptr_zencod_dsa_do_sign = NULL ;
414 static t_zencod_dsa_do_verify *ptr_zencod_dsa_do_verify = NULL ;
415 static t_zencod_dh_generate_key *ptr_zencod_dh_generate_key = NULL ;
416 static t_zencod_dh_compute_key *ptr_zencod_dh_compute_key = NULL ;
417 static t_zencod_rand_bytes *ptr_zencod_rand_bytes = NULL ;
418 static t_zencod_math_mod_exp *ptr_zencod_math_mod_exp = NULL ;
420 static t_zencod_md5_init *ptr_zencod_md5_init = NULL ;
421 static t_zencod_md5_update *ptr_zencod_md5_update = NULL ;
422 static t_zencod_md5_do_final *ptr_zencod_md5_do_final = NULL ;
423 static t_zencod_sha1_init *ptr_zencod_sha1_init = NULL ;
424 static t_zencod_sha1_update *ptr_zencod_sha1_update = NULL ;
425 static t_zencod_sha1_do_final *ptr_zencod_sha1_do_final = NULL ;
427 static t_zencod_xdes_cipher *ptr_zencod_xdes_cipher = NULL ;
428 static t_zencod_rc4_cipher *ptr_zencod_rc4_cipher = NULL ;
430 /* These are the static string constants for the DSO file name and the function
431 * symbol names to bind to.
433 static const char *ZENCOD_LIBNAME = ZEN_LIBRARY ;
435 static const char *ZENCOD_Fct_0 = "test_device" ;
436 static const char *ZENCOD_Fct_1 = "zenbridge_bytes2bits" ;
437 static const char *ZENCOD_Fct_2 = "zenbridge_bits2bytes" ;
438 static const char *ZENCOD_Fct_3 = "zenbridge_new_number" ;
439 static const char *ZENCOD_Fct_4 = "zenbridge_init_number" ;
441 static const char *ZENCOD_Fct_exp_1 = "zenbridge_rsa_mod_exp" ;
442 static const char *ZENCOD_Fct_exp_2 = "zenbridge_rsa_mod_exp_crt" ;
443 static const char *ZENCOD_Fct_dsa_1 = "zenbridge_dsa_do_sign" ;
444 static const char *ZENCOD_Fct_dsa_2 = "zenbridge_dsa_do_verify" ;
445 static const char *ZENCOD_Fct_dh_1 = "zenbridge_dh_generate_key" ;
446 static const char *ZENCOD_Fct_dh_2 = "zenbridge_dh_compute_key" ;
447 static const char *ZENCOD_Fct_rand_1 = "zenbridge_rand_bytes" ;
448 static const char *ZENCOD_Fct_math_1 = "zenbridge_math_mod_exp" ;
450 static const char *ZENCOD_Fct_md5_1 = "zenbridge_md5_init" ;
451 static const char *ZENCOD_Fct_md5_2 = "zenbridge_md5_update" ;
452 static const char *ZENCOD_Fct_md5_3 = "zenbridge_md5_do_final" ;
453 static const char *ZENCOD_Fct_sha1_1 = "zenbridge_sha1_init" ;
454 static const char *ZENCOD_Fct_sha1_2 = "zenbridge_sha1_update" ;
455 static const char *ZENCOD_Fct_sha1_3 = "zenbridge_sha1_do_final" ;
457 static const char *ZENCOD_Fct_xdes_1 = "zenbridge_xdes_cipher" ;
458 static const char *ZENCOD_Fct_rc4_1 = "zenbridge_rc4_cipher" ;
460 /* Destructor (complements the "ENGINE_zencod ()" constructor)
462 static int zencod_destroy (ENGINE *e )
465 ERR_unload_ZENCOD_strings () ;
471 /* (de)initialisation functions. Control Function
473 static int zencod_init ( ENGINE *e )
476 t_zencod_test *ptr_0 ;
477 t_zencod_bytes2bits *ptr_1 ;
478 t_zencod_bits2bytes *ptr_2 ;
479 t_zencod_new_number *ptr_3 ;
480 t_zencod_init_number *ptr_4 ;
481 t_zencod_rsa_mod_exp *ptr_exp_1 ;
482 t_zencod_rsa_mod_exp_crt *ptr_exp_2 ;
483 t_zencod_dsa_do_sign *ptr_dsa_1 ;
484 t_zencod_dsa_do_verify *ptr_dsa_2 ;
485 t_zencod_dh_generate_key *ptr_dh_1 ;
486 t_zencod_dh_compute_key *ptr_dh_2 ;
487 t_zencod_rand_bytes *ptr_rand_1 ;
488 t_zencod_math_mod_exp *ptr_math_1 ;
489 t_zencod_md5_init *ptr_md5_1 ;
490 t_zencod_md5_update *ptr_md5_2 ;
491 t_zencod_md5_do_final *ptr_md5_3 ;
492 t_zencod_sha1_init *ptr_sha1_1 ;
493 t_zencod_sha1_update *ptr_sha1_2 ;
494 t_zencod_sha1_do_final *ptr_sha1_3 ;
495 t_zencod_xdes_cipher *ptr_xdes_1 ;
496 t_zencod_rc4_cipher *ptr_rc4_1 ;
501 * We Should add some tests for non NULL parameters or bad value !!
502 * Stuff to be done ...
505 if ( zencod_dso != NULL ) {
506 ZENCODerr ( ZENCOD_F_ZENCOD_INIT, ZENCOD_R_ALREADY_LOADED ) ;
509 /* Trying to load the Library "cryptozen"
511 zencod_dso = DSO_load ( NULL, ZENCOD_LIBNAME, NULL, 0 ) ;
512 if ( zencod_dso == NULL ) {
513 ZENCODerr ( ZENCOD_F_ZENCOD_INIT, ZENCOD_R_DSO_FAILURE ) ;
517 /* Trying to load Function from the Library
519 if ( ! ( ptr_1 = (t_zencod_bytes2bits*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_1 ) ) ||
520 ! ( ptr_2 = (t_zencod_bits2bytes*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_2 ) ) ||
521 ! ( ptr_3 = (t_zencod_new_number*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_3 ) ) ||
522 ! ( ptr_4 = (t_zencod_init_number*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_4 ) ) ||
523 ! ( ptr_exp_1 = (t_zencod_rsa_mod_exp*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_exp_1 ) ) ||
524 ! ( ptr_exp_2 = (t_zencod_rsa_mod_exp_crt*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_exp_2 ) ) ||
525 ! ( ptr_dsa_1 = (t_zencod_dsa_do_sign*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_dsa_1 ) ) ||
526 ! ( ptr_dsa_2 = (t_zencod_dsa_do_verify*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_dsa_2 ) ) ||
527 ! ( ptr_dh_1 = (t_zencod_dh_generate_key*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_dh_1 ) ) ||
528 ! ( ptr_dh_2 = (t_zencod_dh_compute_key*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_dh_2 ) ) ||
529 ! ( ptr_rand_1 = (t_zencod_rand_bytes*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_rand_1 ) ) ||
530 ! ( ptr_math_1 = (t_zencod_math_mod_exp*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_math_1 ) ) ||
531 ! ( ptr_0 = (t_zencod_test *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_0 ) ) ||
532 ! ( ptr_md5_1 = (t_zencod_md5_init *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_md5_1 ) ) ||
533 ! ( ptr_md5_2 = (t_zencod_md5_update *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_md5_2 ) ) ||
534 ! ( ptr_md5_3 = (t_zencod_md5_do_final *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_md5_3 ) ) ||
535 ! ( ptr_sha1_1 = (t_zencod_sha1_init *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_sha1_1 ) ) ||
536 ! ( ptr_sha1_2 = (t_zencod_sha1_update *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_sha1_2 ) ) ||
537 ! ( ptr_sha1_3 = (t_zencod_sha1_do_final *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_sha1_3 ) ) ||
538 ! ( ptr_xdes_1 = (t_zencod_xdes_cipher *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_xdes_1 ) ) ||
539 ! ( ptr_rc4_1 = (t_zencod_rc4_cipher *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_rc4_1 ) ) ) {
541 ZENCODerr ( ZENCOD_F_ZENCOD_INIT, ZENCOD_R_DSO_FAILURE ) ;
545 /* The function from "cryptozen" Library have been correctly loaded so copy them
547 ptr_zencod_test = ptr_0 ;
548 ptr_zencod_bytes2bits = ptr_1 ;
549 ptr_zencod_bits2bytes = ptr_2 ;
550 ptr_zencod_new_number = ptr_3 ;
551 ptr_zencod_init_number = ptr_4 ;
552 ptr_zencod_rsa_mod_exp = ptr_exp_1 ;
553 ptr_zencod_rsa_mod_exp_crt = ptr_exp_2 ;
554 ptr_zencod_dsa_do_sign = ptr_dsa_1 ;
555 ptr_zencod_dsa_do_verify = ptr_dsa_2 ;
556 ptr_zencod_dh_generate_key = ptr_dh_1 ;
557 ptr_zencod_dh_compute_key = ptr_dh_2 ;
558 ptr_zencod_rand_bytes = ptr_rand_1 ;
559 ptr_zencod_math_mod_exp = ptr_math_1 ;
560 ptr_zencod_test = ptr_0 ;
561 ptr_zencod_md5_init = ptr_md5_1 ;
562 ptr_zencod_md5_update = ptr_md5_2 ;
563 ptr_zencod_md5_do_final = ptr_md5_3 ;
564 ptr_zencod_sha1_init = ptr_sha1_1 ;
565 ptr_zencod_sha1_update = ptr_sha1_2 ;
566 ptr_zencod_sha1_do_final = ptr_sha1_3 ;
567 ptr_zencod_xdes_cipher = ptr_xdes_1 ;
568 ptr_zencod_rc4_cipher = ptr_rc4_1 ;
570 /* We should peform a test to see if there is actually any unit runnig on the system ...
571 * Even if the cryptozen library is loaded the module coul not be loaded on the system ...
572 * For now we may just open and close the device !!
575 if ( ptr_zencod_test () != 0 ) {
576 ZENCODerr ( ZENCOD_F_ZENCOD_INIT, ZENCOD_R_UNIT_FAILURE ) ;
583 DSO_free ( zencod_dso ) ;
586 ptr_zencod_bytes2bits = NULL ;
587 ptr_zencod_bits2bytes = NULL ;
588 ptr_zencod_new_number = NULL ;
589 ptr_zencod_init_number = NULL ;
590 ptr_zencod_rsa_mod_exp = NULL ;
591 ptr_zencod_rsa_mod_exp_crt = NULL ;
592 ptr_zencod_dsa_do_sign = NULL ;
593 ptr_zencod_dsa_do_verify = NULL ;
594 ptr_zencod_dh_generate_key = NULL ;
595 ptr_zencod_dh_compute_key = NULL ;
596 ptr_zencod_rand_bytes = NULL ;
597 ptr_zencod_math_mod_exp = NULL ;
598 ptr_zencod_test = NULL ;
599 ptr_zencod_md5_init = NULL ;
600 ptr_zencod_md5_update = NULL ;
601 ptr_zencod_md5_do_final = NULL ;
602 ptr_zencod_sha1_init = NULL ;
603 ptr_zencod_sha1_update = NULL ;
604 ptr_zencod_sha1_do_final = NULL ;
605 ptr_zencod_xdes_cipher = NULL ;
606 ptr_zencod_rc4_cipher = NULL ;
612 static int zencod_finish ( ENGINE *e )
618 * We Should add some tests for non NULL parameters or bad value !!
619 * Stuff to be done ...
621 if ( zencod_dso == NULL ) {
622 ZENCODerr ( ZENCOD_F_ZENCOD_FINISH, ZENCOD_R_NOT_LOADED ) ;
625 if ( !DSO_free ( zencod_dso ) ) {
626 ZENCODerr ( ZENCOD_F_ZENCOD_FINISH, ZENCOD_R_DSO_FAILURE ) ;
632 ptr_zencod_bytes2bits = NULL ;
633 ptr_zencod_bits2bytes = NULL ;
634 ptr_zencod_new_number = NULL ;
635 ptr_zencod_init_number = NULL ;
636 ptr_zencod_rsa_mod_exp = NULL ;
637 ptr_zencod_rsa_mod_exp_crt = NULL ;
638 ptr_zencod_dsa_do_sign = NULL ;
639 ptr_zencod_dsa_do_verify = NULL ;
640 ptr_zencod_dh_generate_key = NULL ;
641 ptr_zencod_dh_compute_key = NULL ;
642 ptr_zencod_rand_bytes = NULL ;
643 ptr_zencod_math_mod_exp = NULL ;
644 ptr_zencod_test = NULL ;
645 ptr_zencod_md5_init = NULL ;
646 ptr_zencod_md5_update = NULL ;
647 ptr_zencod_md5_do_final = NULL ;
648 ptr_zencod_sha1_init = NULL ;
649 ptr_zencod_sha1_update = NULL ;
650 ptr_zencod_sha1_do_final = NULL ;
651 ptr_zencod_xdes_cipher = NULL ;
652 ptr_zencod_rc4_cipher = NULL ;
658 static int zencod_ctrl ( ENGINE *e, int cmd, long i, void *p, void (*f) () )
661 int initialised = ( ( zencod_dso == NULL ) ? 0 : 1 ) ;
666 * We Should add some tests for non NULL parameters or bad value !!
667 * Stuff to be done ...
670 case ZENCOD_CMD_SO_PATH :
672 ZENCODerr ( ZENCOD_F_ZENCOD_CTRL, ERR_R_PASSED_NULL_PARAMETER ) ;
676 ZENCODerr ( ZENCOD_F_ZENCOD_CTRL, ZENCOD_R_ALREADY_LOADED ) ;
679 ZENCOD_LIBNAME = (const char *) p ;
685 ZENCODerr ( ZENCOD_F_ZENCOD_CTRL, ZENCOD_R_CTRL_COMMAND_NOT_IMPLEMENTED ) ;
691 /* BIGNUM stuff Functions
693 static int zencod_bn_mod_exp ( BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx )
701 ENGINEerr(ZENCOD_F_ZENCOD_BN_MOD_EXP, ZENCOD_R_NOT_LOADED);
705 if ( !bn_wexpand(r, m->top + 1) ) {
706 ENGINEerr(ZENCOD_F_ZENCOD_BN_MOD_EXP, ZENCOD_R_BN_EXPAND_FAIL);
710 memset(r->d, 0, BN_num_bytes(m));
712 ptr_zencod_init_number ( &y, (r->dmax - 1) * sizeof (BN_ULONG) * 8, (unsigned char *) r->d ) ;
713 BIGNUM2ZEN ( &x, a ) ;
714 BIGNUM2ZEN ( &e, p ) ;
715 BIGNUM2ZEN ( &n, m ) ;
717 /* Must invert x and e parameter due to BN mod exp prototype ... */
718 ret = ptr_zencod_math_mod_exp ( &y, &e, &x, &n ) ;
721 PERROR("zenbridge_math_mod_exp");
722 ENGINEerr(ZENCOD_F_ZENCOD_BN_MOD_EXP, ZENCOD_R_REQUEST_FAILED);
726 r->top = (BN_num_bits(m) + BN_BITS2 - 1) / BN_BITS2;
732 /* RSA stuff Functions
734 #ifndef OPENSSL_NO_RSA
735 static int RSA_zencod_rsa_mod_exp ( BIGNUM *r0, const BIGNUM *i, RSA *rsa )
741 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT, ZENCOD_R_NOT_LOADED);
745 if ( !rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp ) {
746 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT, ZENCOD_R_BAD_KEY_COMPONENTS);
750 /* Do in software if argument is too large for hardware */
751 if ( RSA_size(rsa) * 8 > ZENBRIDGE_MAX_KEYSIZE_RSA_CRT ) {
752 const RSA_METHOD *meth;
754 meth = RSA_PKCS1_SSLeay();
755 return meth->rsa_mod_exp(r0, i, rsa);
757 zen_nb_t y, x, p, q, dmp1, dmq1, iqmp;
759 if ( !bn_expand(r0, RSA_size(rsa) * 8) ) {
760 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT, ZENCOD_R_BN_EXPAND_FAIL);
763 r0->top = (RSA_size(rsa) * 8 + BN_BITS2 - 1) / BN_BITS2;
765 BIGNUM2ZEN ( &x, i ) ;
766 BIGNUM2ZEN ( &y, r0 ) ;
767 BIGNUM2ZEN ( &p, rsa->p ) ;
768 BIGNUM2ZEN ( &q, rsa->q ) ;
769 BIGNUM2ZEN ( &dmp1, rsa->dmp1 ) ;
770 BIGNUM2ZEN ( &dmq1, rsa->dmq1 ) ;
771 BIGNUM2ZEN ( &iqmp, rsa->iqmp ) ;
773 if ( ptr_zencod_rsa_mod_exp_crt ( &y, &x, &p, &q, &dmp1, &dmq1, &iqmp ) < 0 ) {
774 PERROR("zenbridge_rsa_mod_exp_crt");
775 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT, ZENCOD_R_REQUEST_FAILED);
784 /* This function is aliased to RSA_mod_exp (with the mont stuff dropped).
786 static int RSA_zencod_bn_mod_exp ( BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
787 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx )
793 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP, ZENCOD_R_NOT_LOADED);
797 /* Do in software if argument is too large for hardware */
798 if ( BN_num_bits(m) > ZENBRIDGE_MAX_KEYSIZE_RSA ) {
799 const RSA_METHOD *meth;
801 meth = RSA_PKCS1_SSLeay();
802 return meth->bn_mod_exp(r, a, p, m, ctx, m_ctx);
806 if ( !bn_expand(r, BN_num_bits(m)) ) {
807 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP, ZENCOD_R_BN_EXPAND_FAIL);
810 r->top = (BN_num_bits(m) + BN_BITS2 - 1) / BN_BITS2;
812 BIGNUM2ZEN ( &x, a ) ;
813 BIGNUM2ZEN ( &y, r ) ;
814 BIGNUM2ZEN ( &e, p ) ;
815 BIGNUM2ZEN ( &n, m ) ;
817 if ( ptr_zencod_rsa_mod_exp ( &y, &x, &n, &e ) < 0 ) {
818 PERROR("zenbridge_rsa_mod_exp");
819 ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP, ZENCOD_R_REQUEST_FAILED);
826 #endif /* !OPENSSL_NO_RSA */
829 #ifndef OPENSSL_NO_DSA
830 /* DSA stuff Functions
832 static DSA_SIG *DSA_zencod_do_sign ( const unsigned char *dgst, int dlen, DSA *dsa )
834 zen_nb_t p, q, g, x, y, r, s, data;
843 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_NOT_LOADED);
848 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
852 /* Do in software if argument is too large for hardware */
853 if ( BN_num_bits(dsa->p) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN ||
854 BN_num_bits(dsa->g) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN ) {
855 const DSA_METHOD *meth;
856 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BAD_KEY_COMPONENTS);
857 meth = DSA_OpenSSL();
858 return meth->dsa_do_sign(dgst, dlen, dsa);
861 if ( !(bn_s = BN_new()) || !(bn_r = BN_new()) ) {
862 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BAD_KEY_COMPONENTS);
866 if ( !bn_expand(bn_r, 160) || !bn_expand(bn_s, 160) ) {
867 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BN_EXPAND_FAIL);
871 bn_r->top = bn_s->top = (160 + BN_BITS2 - 1) / BN_BITS2;
872 BIGNUM2ZEN ( &p, dsa->p ) ;
873 BIGNUM2ZEN ( &q, dsa->q ) ;
874 BIGNUM2ZEN ( &g, dsa->g ) ;
875 BIGNUM2ZEN ( &x, dsa->priv_key ) ;
876 BIGNUM2ZEN ( &y, dsa->pub_key ) ;
877 BIGNUM2ZEN ( &r, bn_r ) ;
878 BIGNUM2ZEN ( &s, bn_s ) ;
881 ypcmem(msg, dgst, 20);
882 ptr_zencod_init_number ( &data, 160, msg ) ;
884 if ( ptr_zencod_dsa_do_sign ( 0, &data, &y, &p, &q, &g, &x, &r, &s ) < 0 ) {
885 PERROR("zenbridge_dsa_do_sign");
886 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
890 if ( !( sig = DSA_SIG_new () ) ) {
891 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
907 static int DSA_zencod_do_verify ( const unsigned char *dgst, int dlen, DSA_SIG *sig, DSA *dsa )
909 zen_nb_t data, p, q, g, y, r, s, v;
917 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_VERIFY, ZENCOD_R_NOT_LOADED);
922 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
926 /* Do in software if argument is too large for hardware */
927 if ( BN_num_bits(dsa->p) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN ||
928 BN_num_bits(dsa->g) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN ) {
929 const DSA_METHOD *meth;
930 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BAD_KEY_COMPONENTS);
931 meth = DSA_OpenSSL();
932 return meth->dsa_do_verify(dgst, dlen, sig, dsa);
935 BIGNUM2ZEN ( &p, dsa->p ) ;
936 BIGNUM2ZEN ( &q, dsa->q ) ;
937 BIGNUM2ZEN ( &g, dsa->g ) ;
938 BIGNUM2ZEN ( &y, dsa->pub_key ) ;
939 BIGNUM2ZEN ( &r, sig->r ) ;
940 BIGNUM2ZEN ( &s, sig->s ) ;
941 ptr_zencod_init_number ( &v, 160, v_data ) ;
942 ypcmem(msg, dgst, 20);
943 ptr_zencod_init_number ( &data, 160, msg ) ;
945 if ( ( ret = ptr_zencod_dsa_do_verify ( 0, &data, &p, &q, &g, &y, &r, &s, &v ) ) < 0 ) {
946 PERROR("zenbridge_dsa_do_verify");
947 ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_VERIFY, ZENCOD_R_REQUEST_FAILED);
951 return ( ( ret == 0 ) ? 1 : ret ) ;
955 static int DSA_zencod_bn_mod_exp ( DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p, const BIGNUM *m,
956 BN_CTX *ctx, BN_MONT_CTX *m_ctx )
960 return zencod_bn_mod_exp ( r, a, p, m, ctx ) ;
962 #endif /* !OPENSSL_NO_DSA */
965 #ifndef OPENSSl_NO_DH
966 /* DH stuff Functions
968 static int DH_zencod_generate_key ( DH *dh )
970 BIGNUM *bn_prv = NULL;
971 BIGNUM *bn_pub = NULL;
978 ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_NOT_LOADED);
983 if ( dh->priv_key ) {
984 bn_prv = dh->priv_key;
987 if (!(bn_prv = BN_new())) {
988 ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_BN_EXPAND_FAIL);
996 bn_pub = dh->pub_key;
998 if ( !( bn_pub = BN_new () ) ) {
999 ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_BN_EXPAND_FAIL);
1004 if ( !bn_wexpand ( bn_prv, dh->p->dmax ) ||
1005 !bn_wexpand ( bn_pub, dh->p->dmax ) ) {
1006 ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_BN_EXPAND_FAIL);
1009 bn_prv->top = dh->p->top;
1010 bn_pub->top = dh->p->top;
1012 /* Convert all keys */
1013 BIGNUM2ZEN ( &p, dh->p ) ;
1014 BIGNUM2ZEN ( &g, dh->g ) ;
1015 BIGNUM2ZEN ( &y, bn_pub ) ;
1016 BIGNUM2ZEN ( &x, bn_prv ) ;
1017 x.len = DH_size(dh) * 8;
1019 /* Adjust the lengths of P and G */
1020 p.len = ptr_zencod_bytes2bits ( p.data, ZEN_BYTES ( p.len ) ) ;
1021 g.len = ptr_zencod_bytes2bits ( g.data, ZEN_BYTES ( g.len ) ) ;
1023 /* Send the request to the driver */
1024 if ( ptr_zencod_dh_generate_key ( &y, &x, &g, &p, generate_x ) < 0 ) {
1025 perror("zenbridge_dh_generate_key");
1026 ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_REQUEST_FAILED);
1030 dh->priv_key = bn_prv;
1031 dh->pub_key = bn_pub;
1036 if (!dh->priv_key && bn_prv)
1038 if (!dh->pub_key && bn_pub)
1045 static int DH_zencod_compute_key ( unsigned char *key, const BIGNUM *pub_key, DH *dh )
1047 zen_nb_t y, x, p, k;
1051 if ( !zencod_dso ) {
1052 ENGINEerr(ZENCOD_F_ZENCOD_DH_COMPUTE, ZENCOD_R_NOT_LOADED);
1056 if ( !dh->priv_key ) {
1057 ENGINEerr(ZENCOD_F_ZENCOD_DH_COMPUTE, ZENCOD_R_BAD_KEY_COMPONENTS);
1061 /* Convert all keys */
1062 BIGNUM2ZEN ( &y, pub_key ) ;
1063 BIGNUM2ZEN ( &x, dh->priv_key ) ;
1064 BIGNUM2ZEN ( &p, dh->p ) ;
1065 ptr_zencod_init_number ( &k, p.len, key ) ;
1067 /* Adjust the lengths */
1068 p.len = ptr_zencod_bytes2bits ( p.data, ZEN_BYTES ( p.len ) ) ;
1069 y.len = ptr_zencod_bytes2bits ( y.data, ZEN_BYTES ( y.len ) ) ;
1070 x.len = ptr_zencod_bytes2bits ( x.data, ZEN_BYTES ( x.len ) ) ;
1072 /* Call the hardware */
1073 if ( ptr_zencod_dh_compute_key ( &k, &y, &x, &p ) < 0 ) {
1074 ENGINEerr(ZENCOD_F_ZENCOD_DH_COMPUTE, ZENCOD_R_REQUEST_FAILED);
1078 /* The key must be written MSB -> LSB */
1079 k.len = ptr_zencod_bytes2bits ( k.data, ZEN_BYTES ( k.len ) ) ;
1080 esrever ( key, ZEN_BYTES ( k.len ) ) ;
1082 return ZEN_BYTES ( k.len ) ;
1086 static int DH_zencod_bn_mod_exp ( const DH *dh, BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
1087 BN_MONT_CTX *m_ctx )
1091 return zencod_bn_mod_exp ( r, a, p, m, ctx ) ;
1093 #endif /* !OPENSSL_NO_DH */
1096 /* RAND stuff Functions
1098 static void RAND_zencod_seed ( const void *buf, int num )
1100 /* Nothing to do cause our crypto accelerator provide a true random generator */
1104 static int RAND_zencod_rand_bytes ( unsigned char *buf, int num )
1110 if ( !zencod_dso ) {
1111 ENGINEerr(ZENCOD_F_ZENCOD_RAND, ZENCOD_R_NOT_LOADED);
1115 ptr_zencod_init_number ( &r, num * 8, buf ) ;
1117 if ( ptr_zencod_rand_bytes ( &r, ZENBRIDGE_RNG_DIRECT ) < 0 ) {
1118 PERROR("zenbridge_rand_bytes");
1119 ENGINEerr(ZENCOD_F_ZENCOD_RAND, ZENCOD_R_REQUEST_FAILED);
1127 static int RAND_zencod_rand_status ( void )
1135 /* This stuff is needed if this ENGINE is being compiled into a self-contained
1138 #ifdef ENGINE_DYNAMIC_SUPPORT
1139 static int bind_fn ( ENGINE *e, const char *id )
1142 if ( id && ( strcmp ( id, engine_zencod_id ) != 0 ) ) {
1145 if ( !bind_helper ( e ) ) {
1152 IMPLEMENT_DYNAMIC_CHECK_FN ()
1153 IMPLEMENT_DYNAMIC_BIND_FN ( bind_fn )
1154 #endif /* ENGINE_DYNAMIC_SUPPORT */
1160 * Adding "Digest" and "Cipher" tools ...
1161 * This is in development ... ;-)
1162 * In orfer to code this, i refer to hw_openbsd_dev_crypto and openssl engine made by Geoff Thorpe (if i'm rigth),
1163 * and evp, sha md5 definitions etc ...
1165 /* First add some include ... */
1166 #include <openssl/evp.h>
1167 #include <openssl/sha.h>
1168 #include <openssl/md5.h>
1169 #include <openssl/rc4.h>
1170 #include <openssl/des.h>
1173 /* Some variables declaration ... */
1175 * Disable symetric computation except DES and 3DES, but let part of the code
1177 /* static int engine_digest_nids [ ] = { NID_sha1, NID_md5 } ; */
1178 static int engine_digest_nids [ ] = { } ;
1179 static int engine_digest_nids_num = 0 ;
1180 /* static int engine_cipher_nids [ ] = { NID_rc4, NID_rc4_40, NID_des_cbc, NID_des_ede3_cbc } ; */
1181 static int engine_cipher_nids [ ] = { NID_des_cbc, NID_des_ede3_cbc } ;
1182 static int engine_cipher_nids_num = 2 ;
1185 /* Function prototype ... */
1187 static int engine_sha1_init ( EVP_MD_CTX *ctx ) ;
1188 static int engine_sha1_update ( EVP_MD_CTX *ctx, const void *data, unsigned long count ) ;
1189 static int engine_sha1_final ( EVP_MD_CTX *ctx, unsigned char *md ) ;
1192 static int engine_md5_init ( EVP_MD_CTX *ctx ) ;
1193 static int engine_md5_update ( EVP_MD_CTX *ctx, const void *data, unsigned long count ) ;
1194 static int engine_md5_final ( EVP_MD_CTX *ctx, unsigned char *md ) ;
1196 static int engine_md_cleanup ( EVP_MD_CTX *ctx ) ;
1197 static int engine_md_copy ( EVP_MD_CTX *to, const EVP_MD_CTX *from ) ;
1201 static int engine_rc4_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc ) ;
1202 static int engine_rc4_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl ) ;
1205 static int engine_des_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc ) ;
1206 static int engine_des_cbc_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl ) ;
1209 static int engine_des_ede3_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc ) ;
1210 static int engine_des_ede3_cbc_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out,const unsigned char *in, unsigned int inl ) ;
1212 static int engine_cipher_cleanup ( EVP_CIPHER_CTX *ctx ) ; /* cleanup ctx */
1215 /* The one for SHA ... */
1216 static const EVP_MD engine_sha1_md =
1219 NID_sha1WithRSAEncryption,
1221 EVP_MD_FLAG_ONESHOT,
1222 /* 0, */ /* EVP_MD_FLAG_ONESHOT = x0001 digest can only handle a single block
1223 * XXX: set according to device info ... */
1227 engine_md_copy, /* dev_crypto_sha_copy */
1228 engine_md_cleanup, /* dev_crypto_sha_cleanup */
1229 EVP_PKEY_RSA_method,
1231 /* sizeof ( EVP_MD * ) + sizeof ( SHA_CTX ) */
1232 sizeof ( ZEN_MD_DATA )
1233 /* sizeof ( MD_CTX_DATA ) The message digest data stucture ... */
1236 /* The one for MD5 ... */
1237 static const EVP_MD engine_md5_md =
1240 NID_md5WithRSAEncryption,
1242 EVP_MD_FLAG_ONESHOT,
1243 /* 0, */ /* EVP_MD_FLAG_ONESHOT = x0001 digest can only handle a single block
1244 * XXX: set according to device info ... */
1248 engine_md_copy, /* dev_crypto_md5_copy */
1249 engine_md_cleanup, /* dev_crypto_md5_cleanup */
1250 EVP_PKEY_RSA_method,
1252 /* sizeof ( EVP_MD * ) + sizeof ( MD5_CTX ) */
1253 sizeof ( ZEN_MD_DATA )
1254 /* sizeof ( MD_CTX_DATA ) The message digest data stucture ... */
1258 /* The one for RC4 ... */
1259 #define EVP_RC4_KEY_SIZE 16
1261 /* Try something static ... */
1265 unsigned int first ;
1266 unsigned char rc4_state [ 260 ] ;
1269 #define rc4_data(ctx) ( (EVP_RC4_KEY *) ( ctx )->cipher_data )
1271 static const EVP_CIPHER engine_rc4 =
1275 16, /* EVP_RC4_KEY_SIZE should be 128 bits */
1276 0, /* FIXME: key should be up to 256 bytes */
1277 EVP_CIPH_VARIABLE_LENGTH,
1278 engine_rc4_init_key,
1280 engine_cipher_cleanup,
1281 sizeof ( NEW_ZEN_RC4_KEY ),
1287 /* The one for RC4_40 ... */
1288 static const EVP_CIPHER engine_rc4_40 =
1294 EVP_CIPH_VARIABLE_LENGTH,
1295 engine_rc4_init_key,
1297 engine_cipher_cleanup,
1298 sizeof ( NEW_ZEN_RC4_KEY ),
1304 /* The one for DES ... */
1306 /* Try something static ... */
1309 unsigned char des_key [ 24 ] ;
1310 unsigned char des_iv [ 8 ] ;
1313 static const EVP_CIPHER engine_des_cbc =
1317 0 | EVP_CIPH_CBC_MODE,
1318 engine_des_init_key,
1319 engine_des_cbc_cipher,
1320 engine_cipher_cleanup,
1321 sizeof(ZEN_DES_KEY),
1322 EVP_CIPHER_set_asn1_iv,
1323 EVP_CIPHER_get_asn1_iv,
1328 /* The one for 3DES ... */
1330 /* Try something static ... */
1333 unsigned char des3_key [ 24 ] ;
1334 unsigned char des3_iv [ 8 ] ;
1337 #define des_data(ctx) ( (DES_EDE_KEY *) ( ctx )->cipher_data )
1339 static const EVP_CIPHER engine_des_ede3_cbc =
1343 0 | EVP_CIPH_CBC_MODE,
1344 engine_des_ede3_init_key,
1345 engine_des_ede3_cbc_cipher,
1346 engine_cipher_cleanup,
1347 sizeof(ZEN_3DES_KEY),
1348 EVP_CIPHER_set_asn1_iv,
1349 EVP_CIPHER_get_asn1_iv,
1355 /* General function cloned on hw_openbsd_dev_crypto one ... */
1356 static int engine_digests ( ENGINE *e, const EVP_MD **digest, const int **nids, int nid )
1359 #ifdef DEBUG_ZENCOD_MD
1360 fprintf ( stderr, "\t=>Function : static int engine_digests () called !\n" ) ;
1364 /* We are returning a list of supported nids */
1365 *nids = engine_digest_nids ;
1366 return engine_digest_nids_num ;
1368 /* We are being asked for a specific digest */
1369 if ( nid == NID_md5 ) {
1370 *digest = &engine_md5_md ;
1372 else if ( nid == NID_sha1 ) {
1373 *digest = &engine_sha1_md ;
1383 /* SHA stuff Functions
1385 static int engine_sha1_init ( EVP_MD_CTX *ctx )
1390 /* Test with zenbridge library ... */
1391 to_return = ptr_zencod_sha1_init ( (ZEN_MD_DATA *) ctx->md_data ) ;
1392 to_return = !to_return ;
1398 static int engine_sha1_update ( EVP_MD_CTX *ctx, const void *data, unsigned long count )
1404 /* Convert parameters ... */
1406 input.data = (unsigned char *) data ;
1408 /* Test with zenbridge library ... */
1409 to_return = ptr_zencod_sha1_update ( (ZEN_MD_DATA *) ctx->md_data, (const zen_nb_t *) &input ) ;
1410 to_return = !to_return ;
1416 static int engine_sha1_final ( EVP_MD_CTX *ctx, unsigned char *md )
1422 /* Convert parameters ... */
1423 output.len = SHA_DIGEST_LENGTH ;
1426 /* Test with zenbridge library ... */
1427 to_return = ptr_zencod_sha1_do_final ( (ZEN_MD_DATA *) ctx->md_data, (zen_nb_t *) &output ) ;
1428 to_return = !to_return ;
1435 /* MD5 stuff Functions
1437 static int engine_md5_init ( EVP_MD_CTX *ctx )
1442 /* Test with zenbridge library ... */
1443 to_return = ptr_zencod_md5_init ( (ZEN_MD_DATA *) ctx->md_data ) ;
1444 to_return = !to_return ;
1450 static int engine_md5_update ( EVP_MD_CTX *ctx, const void *data, unsigned long count )
1456 /* Convert parameters ... */
1458 input.data = (unsigned char *) data ;
1460 /* Test with zenbridge library ... */
1461 to_return = ptr_zencod_md5_update ( (ZEN_MD_DATA *) ctx->md_data, (const zen_nb_t *) &input ) ;
1462 to_return = !to_return ;
1468 static int engine_md5_final ( EVP_MD_CTX *ctx, unsigned char *md )
1474 /* Convert parameters ... */
1475 output.len = MD5_DIGEST_LENGTH ;
1478 /* Test with zenbridge library ... */
1479 to_return = ptr_zencod_md5_do_final ( (ZEN_MD_DATA *) ctx->md_data, (zen_nb_t *) &output ) ;
1480 to_return = !to_return ;
1486 static int engine_md_cleanup ( EVP_MD_CTX *ctx )
1489 ZEN_MD_DATA *zen_md_data = (ZEN_MD_DATA *) ctx->md_data ;
1491 if ( zen_md_data->HashBuffer != NULL ) {
1492 OPENSSL_free ( zen_md_data->HashBuffer ) ;
1493 zen_md_data->HashBufferSize = 0 ;
1494 ctx->md_data = NULL ;
1501 static int engine_md_copy ( EVP_MD_CTX *to, const EVP_MD_CTX *from )
1503 const ZEN_MD_DATA *from_md = (ZEN_MD_DATA *) from->md_data ;
1504 ZEN_MD_DATA *to_md = (ZEN_MD_DATA *) to->md_data ;
1506 to_md->HashBuffer = OPENSSL_malloc ( from_md->HashBufferSize ) ;
1507 memcpy ( to_md->HashBuffer, from_md->HashBuffer, from_md->HashBufferSize ) ;
1513 /* General function cloned on hw_openbsd_dev_crypto one ... */
1514 static int engine_ciphers ( ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid )
1518 /* We are returning a list of supported nids */
1519 *nids = engine_cipher_nids ;
1520 return engine_cipher_nids_num ;
1522 /* We are being asked for a specific cipher */
1523 if ( nid == NID_rc4 ) {
1524 *cipher = &engine_rc4 ;
1526 else if ( nid == NID_rc4_40 ) {
1527 *cipher = &engine_rc4_40 ;
1529 else if ( nid == NID_des_cbc ) {
1530 *cipher = &engine_des_cbc ;
1532 else if ( nid == NID_des_ede3_cbc ) {
1533 *cipher = &engine_des_ede3_cbc ;
1544 static int engine_rc4_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc )
1549 NEW_ZEN_RC4_KEY *tmp_rc4_key = NULL ;
1551 tmp_rc4_key = (NEW_ZEN_RC4_KEY *) ( ctx->cipher_data ) ;
1552 tmp_rc4_key->first = 0 ;
1553 tmp_rc4_key->len = ctx->key_len ;
1554 tmp_rc4_key->rc4_state [ 0 ] = 0x00 ;
1555 tmp_rc4_key->rc4_state [ 2 ] = 0x00 ;
1556 nb = 256 / ctx->key_len ;
1557 for ( i = 0; i < nb ; i++ ) {
1558 memcpy ( &( tmp_rc4_key->rc4_state [ 4 + i*ctx->key_len ] ), key, ctx->key_len ) ;
1567 static int engine_rc4_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int in_len )
1570 zen_nb_t output, input ;
1573 NEW_ZEN_RC4_KEY *tmp_rc4_key = NULL ;
1575 /* Convert parameters ... */
1576 input.len = in_len ;
1577 input.data = (unsigned char *) in ;
1578 output.len = in_len ;
1579 output.data = (unsigned char *) out ;
1581 tmp_rc4_key = ( (NEW_ZEN_RC4_KEY *) ( ctx->cipher_data ) ) ;
1583 rc4key.data = &( tmp_rc4_key->rc4_state [ 0 ] ) ;
1585 /* Test with zenbridge library ... */
1586 to_return = ptr_zencod_rc4_cipher ( &output, &input, (const zen_nb_t *) &rc4key, &( tmp_rc4_key->rc4_state [0] ), &( tmp_rc4_key->rc4_state [3] ), !tmp_rc4_key->first ) ;
1587 to_return = !to_return ;
1589 /* Update encryption state ... */
1590 tmp_rc4_key->first = 1 ;
1591 tmp_rc4_key = NULL ;
1597 static int engine_des_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc )
1600 ZEN_DES_KEY *tmp_des_key = NULL ;
1603 tmp_des_key = (ZEN_DES_KEY *) ( ctx->cipher_data ) ;
1604 memcpy ( &( tmp_des_key->des_key [ 0 ] ), key, 8 ) ;
1605 memcpy ( &( tmp_des_key->des_key [ 8 ] ), key, 8 ) ;
1606 memcpy ( &( tmp_des_key->des_key [ 16 ] ), key, 8 ) ;
1607 memcpy ( &( tmp_des_key->des_iv [ 0 ] ), iv, 8 ) ;
1615 static int engine_des_cbc_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl )
1618 zen_nb_t output, input ;
1619 zen_nb_t deskey_1, deskey_2, deskey_3, iv ;
1622 /* Convert parameters ... */
1624 input.data = (unsigned char *) in ;
1628 /* Set key parameters ... */
1632 deskey_1.data = (unsigned char *) ( (ZEN_DES_KEY *) ( ctx->cipher_data ) )->des_key ;
1633 deskey_2.data = (unsigned char *) &( (ZEN_DES_KEY *) ( ctx->cipher_data ) )->des_key [ 8 ] ;
1634 deskey_3.data = (unsigned char *) &( (ZEN_DES_KEY *) ( ctx->cipher_data ) )->des_key [ 16 ] ;
1636 /* Key correct iv ... */
1637 memcpy ( ( (ZEN_DES_KEY *) ( ctx->cipher_data ) )->des_iv, ctx->iv, 8 ) ;
1639 iv.data = (unsigned char *) ( (ZEN_DES_KEY *) ( ctx->cipher_data ) )->des_iv ;
1641 if ( ctx->encrypt == 0 ) {
1642 memcpy ( ctx->iv, &( input.data [ input.len - 8 ] ), 8 ) ;
1645 /* Test with zenbridge library ... */
1646 to_return = ptr_zencod_xdes_cipher ( &output, &input,
1647 (zen_nb_t *) &deskey_1, (zen_nb_t *) &deskey_2, (zen_nb_t *) &deskey_3, &iv, ctx->encrypt ) ;
1648 to_return = !to_return ;
1650 /* But we need to set up the rigth iv ...
1651 * Test ENCRYPT or DECRYPT mode to set iv ... */
1652 if ( ctx->encrypt == 1 ) {
1653 memcpy ( ctx->iv, &( output.data [ output.len - 8 ] ), 8 ) ;
1660 static int engine_des_ede3_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc )
1663 ZEN_3DES_KEY *tmp_3des_key = NULL ;
1666 tmp_3des_key = (ZEN_3DES_KEY *) ( ctx->cipher_data ) ;
1667 memcpy ( &( tmp_3des_key->des3_key [ 0 ] ), key, 24 ) ;
1668 memcpy ( &( tmp_3des_key->des3_iv [ 0 ] ), iv, 8 ) ;
1676 static int engine_des_ede3_cbc_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in,
1677 unsigned int in_len )
1680 zen_nb_t output, input ;
1681 zen_nb_t deskey_1, deskey_2, deskey_3, iv ;
1684 /* Convert parameters ... */
1685 input.len = in_len ;
1686 input.data = (unsigned char *) in ;
1687 output.len = in_len ;
1694 deskey_1.data = (unsigned char *) ( (ZEN_3DES_KEY *) ( ctx->cipher_data ) )->des3_key ;
1695 deskey_2.data = (unsigned char *) &( (ZEN_3DES_KEY *) ( ctx->cipher_data ) )->des3_key [ 8 ] ;
1696 deskey_3.data = (unsigned char *) &( (ZEN_3DES_KEY *) ( ctx->cipher_data ) )->des3_key [ 16 ] ;
1698 /* Key correct iv ... */
1699 memcpy ( ( (ZEN_3DES_KEY *) ( ctx->cipher_data ) )->des3_iv, ctx->iv, 8 ) ;
1701 iv.data = (unsigned char *) ( (ZEN_3DES_KEY *) ( ctx->cipher_data ) )->des3_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, (zen_nb_t *) &deskey_2, (zen_nb_t *) &deskey_3, &iv, ctx->encrypt ) ;
1710 to_return = !to_return ;
1712 if ( ctx->encrypt == 1 ) {
1713 memcpy ( ctx->iv, &( output.data [ output.len - 8 ] ), 8 ) ;
1720 static int engine_cipher_cleanup ( EVP_CIPHER_CTX *ctx )
1723 /* Set the key pointer ... */
1724 if ( ctx->cipher->nid == NID_rc4 || ctx->cipher->nid == NID_rc4_40 ) {
1726 else if ( ctx->cipher->nid == NID_des_cbc ) {
1728 else if ( ctx->cipher->nid == NID_des_ede3_cbc ) {
1735 #endif /* !OPENSSL_NO_HW_ZENCOD */
1736 #endif /* !OPENSSL_NO_HW */