1 /* crypto/engine/hw_ubsec.c */
2 /* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
5 * Cloned shamelessly by Joe Tardo.
7 /* ====================================================================
8 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in
19 * the documentation and/or other materials provided with the
22 * 3. All advertising materials mentioning features or use of this
23 * software must display the following acknowledgment:
24 * "This product includes software developed by the OpenSSL Project
25 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
27 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
28 * endorse or promote products derived from this software without
29 * prior written permission. For written permission, please contact
30 * licensing@OpenSSL.org.
32 * 5. Products derived from this software may not be called "OpenSSL"
33 * nor may "OpenSSL" appear in their names without prior written
34 * permission of the OpenSSL Project.
36 * 6. Redistributions of any form whatsoever must retain the following
38 * "This product includes software developed by the OpenSSL Project
39 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
41 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
42 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
44 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
47 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
48 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
50 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
51 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
52 * OF THE POSSIBILITY OF SUCH DAMAGE.
53 * ====================================================================
55 * This product includes cryptographic software written by Eric Young
56 * (eay@cryptsoft.com). This product includes software written by Tim
57 * Hudson (tjh@cryptsoft.com).
63 #include <openssl/crypto.h>
64 #include <openssl/buffer.h>
65 #include <openssl/dso.h>
66 #include <openssl/engine.h>
67 #ifndef OPENSSL_NO_RSA
68 #include <openssl/rsa.h>
70 #ifndef OPENSSL_NO_DSA
71 #include <openssl/dsa.h>
74 #include <openssl/dh.h>
76 #include <openssl/bn.h>
79 #ifndef OPENSSL_NO_HW_UBSEC
84 #include "vendor_defns/hw_ubsec.h"
87 #define UBSEC_LIB_NAME "ubsec engine"
88 #include "e_ubsec_err.c"
90 #define FAIL_TO_SOFTWARE -15
92 static int ubsec_destroy(ENGINE *e);
93 static int ubsec_init(ENGINE *e);
94 static int ubsec_finish(ENGINE *e);
95 static int ubsec_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
96 static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
97 const BIGNUM *m, BN_CTX *ctx);
98 #ifndef OPENSSL_NO_RSA
99 static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
100 const BIGNUM *q, const BIGNUM *dp,
101 const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx);
102 static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
103 static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
104 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
106 #ifndef OPENSSL_NO_DSA
108 static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
109 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
110 BN_CTX *ctx, BN_MONT_CTX *in_mont);
111 static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
112 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
115 static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
116 static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
117 DSA_SIG *sig, DSA *dsa);
119 #ifndef OPENSSL_NO_DH
120 static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
121 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
123 static int ubsec_dh_compute_key(unsigned char *key,const BIGNUM *pub_key,DH *dh);
124 static int ubsec_dh_generate_key(DH *dh);
128 static int ubsec_rand_bytes(unsigned char *buf, int num);
129 static int ubsec_rand_status(void);
132 #define UBSEC_CMD_SO_PATH ENGINE_CMD_BASE
133 static const ENGINE_CMD_DEFN ubsec_cmd_defns[] = {
136 "Specifies the path to the 'ubsec' shared library",
137 ENGINE_CMD_FLAG_STRING},
141 #ifndef OPENSSL_NO_RSA
142 /* Our internal RSA_METHOD that we provide pointers to */
143 static RSA_METHOD ubsec_rsa =
162 #ifndef OPENSSL_NO_DSA
163 /* Our internal DSA_METHOD that we provide pointers to */
164 static DSA_METHOD ubsec_dsa =
167 ubsec_dsa_do_sign, /* dsa_do_sign */
168 NULL, /* dsa_sign_setup */
169 ubsec_dsa_verify, /* dsa_do_verify */
170 NULL, /* ubsec_dsa_mod_exp */ /* dsa_mod_exp */
171 NULL, /* ubsec_mod_exp_dsa */ /* bn_mod_exp */
176 NULL, /* dsa_paramgen */
177 NULL /* dsa_keygen */
181 #ifndef OPENSSL_NO_DH
182 /* Our internal DH_METHOD that we provide pointers to */
183 static DH_METHOD ubsec_dh =
186 ubsec_dh_generate_key,
187 ubsec_dh_compute_key,
197 /* Constants used when creating the ENGINE */
198 static const char *engine_ubsec_id = "ubsec";
199 static const char *engine_ubsec_name = "UBSEC hardware engine support";
201 /* This internal function is used by ENGINE_ubsec() and possibly by the
202 * "dynamic" ENGINE support too */
203 static int bind_helper(ENGINE *e)
205 #ifndef OPENSSL_NO_RSA
206 const RSA_METHOD *meth1;
208 #ifndef OPENSSL_NO_DH
209 #ifndef HAVE_UBSEC_DH
210 const DH_METHOD *meth3;
211 #endif /* HAVE_UBSEC_DH */
213 if(!ENGINE_set_id(e, engine_ubsec_id) ||
214 !ENGINE_set_name(e, engine_ubsec_name) ||
215 #ifndef OPENSSL_NO_RSA
216 !ENGINE_set_RSA(e, &ubsec_rsa) ||
218 #ifndef OPENSSL_NO_DSA
219 !ENGINE_set_DSA(e, &ubsec_dsa) ||
221 #ifndef OPENSSL_NO_DH
222 !ENGINE_set_DH(e, &ubsec_dh) ||
224 !ENGINE_set_destroy_function(e, ubsec_destroy) ||
225 !ENGINE_set_init_function(e, ubsec_init) ||
226 !ENGINE_set_finish_function(e, ubsec_finish) ||
227 !ENGINE_set_ctrl_function(e, ubsec_ctrl) ||
228 !ENGINE_set_cmd_defns(e, ubsec_cmd_defns))
231 #ifndef OPENSSL_NO_RSA
232 /* We know that the "PKCS1_SSLeay()" functions hook properly
233 * to the Broadcom-specific mod_exp and mod_exp_crt so we use
234 * those functions. NB: We don't use ENGINE_openssl() or
235 * anything "more generic" because something like the RSAref
236 * code may not hook properly, and if you own one of these
237 * cards then you have the right to do RSA operations on it
239 meth1 = RSA_PKCS1_SSLeay();
240 ubsec_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
241 ubsec_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
242 ubsec_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
243 ubsec_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
246 #ifndef OPENSSL_NO_DH
247 #ifndef HAVE_UBSEC_DH
248 /* Much the same for Diffie-Hellman */
249 meth3 = DH_OpenSSL();
250 ubsec_dh.generate_key = meth3->generate_key;
251 ubsec_dh.compute_key = meth3->compute_key;
252 #endif /* HAVE_UBSEC_DH */
255 /* Ensure the ubsec error handling is set up */
256 ERR_load_UBSEC_strings();
260 #ifdef OPENSSL_NO_DYNAMIC_ENGINE
261 static ENGINE *engine_ubsec(void)
263 ENGINE *ret = ENGINE_new();
266 if(!bind_helper(ret))
274 void ENGINE_load_ubsec(void)
276 /* Copied from eng_[openssl|dyn].c */
277 ENGINE *toadd = engine_ubsec();
285 /* This is a process-global DSO handle used for loading and unloading
286 * the UBSEC library. NB: This is only set (or unset) during an
287 * init() or finish() call (reference counts permitting) and they're
288 * operating with global locks, so this should be thread-safe
291 static DSO *ubsec_dso = NULL;
293 /* These are the function pointers that are (un)set when the library has
294 * successfully (un)loaded. */
296 static t_UBSEC_ubsec_bytes_to_bits *p_UBSEC_ubsec_bytes_to_bits = NULL;
297 static t_UBSEC_ubsec_bits_to_bytes *p_UBSEC_ubsec_bits_to_bytes = NULL;
298 static t_UBSEC_ubsec_open *p_UBSEC_ubsec_open = NULL;
299 static t_UBSEC_ubsec_close *p_UBSEC_ubsec_close = NULL;
300 #ifndef OPENSSL_NO_DH
301 static t_UBSEC_diffie_hellman_generate_ioctl
302 *p_UBSEC_diffie_hellman_generate_ioctl = NULL;
303 static t_UBSEC_diffie_hellman_agree_ioctl *p_UBSEC_diffie_hellman_agree_ioctl = NULL;
305 #ifndef OPENSSL_NO_RSA
306 static t_UBSEC_rsa_mod_exp_ioctl *p_UBSEC_rsa_mod_exp_ioctl = NULL;
307 static t_UBSEC_rsa_mod_exp_crt_ioctl *p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
309 #ifndef OPENSSL_NO_DSA
310 static t_UBSEC_dsa_sign_ioctl *p_UBSEC_dsa_sign_ioctl = NULL;
311 static t_UBSEC_dsa_verify_ioctl *p_UBSEC_dsa_verify_ioctl = NULL;
313 static t_UBSEC_math_accelerate_ioctl *p_UBSEC_math_accelerate_ioctl = NULL;
314 static t_UBSEC_rng_ioctl *p_UBSEC_rng_ioctl = NULL;
315 static t_UBSEC_max_key_len_ioctl *p_UBSEC_max_key_len_ioctl = NULL;
317 static int max_key_len = 1024; /* ??? */
320 * These are the static string constants for the DSO file name and the function
321 * symbol names to bind to.
324 static const char *UBSEC_LIBNAME = NULL;
325 static const char *get_UBSEC_LIBNAME(void)
328 return UBSEC_LIBNAME;
331 static void free_UBSEC_LIBNAME(void)
334 OPENSSL_free((void*)UBSEC_LIBNAME);
335 UBSEC_LIBNAME = NULL;
337 static long set_UBSEC_LIBNAME(const char *name)
339 free_UBSEC_LIBNAME();
340 return (((UBSEC_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0);
342 static const char *UBSEC_F1 = "ubsec_bytes_to_bits";
343 static const char *UBSEC_F2 = "ubsec_bits_to_bytes";
344 static const char *UBSEC_F3 = "ubsec_open";
345 static const char *UBSEC_F4 = "ubsec_close";
346 #ifndef OPENSSL_NO_DH
347 static const char *UBSEC_F5 = "diffie_hellman_generate_ioctl";
348 static const char *UBSEC_F6 = "diffie_hellman_agree_ioctl";
350 /* #ifndef OPENSSL_NO_RSA */
351 static const char *UBSEC_F7 = "rsa_mod_exp_ioctl";
352 static const char *UBSEC_F8 = "rsa_mod_exp_crt_ioctl";
354 #ifndef OPENSSL_NO_DSA
355 static const char *UBSEC_F9 = "dsa_sign_ioctl";
356 static const char *UBSEC_F10 = "dsa_verify_ioctl";
358 static const char *UBSEC_F11 = "math_accelerate_ioctl";
359 static const char *UBSEC_F12 = "rng_ioctl";
360 static const char *UBSEC_F13 = "ubsec_max_key_len_ioctl";
362 /* Destructor (complements the "ENGINE_ubsec()" constructor) */
363 static int ubsec_destroy(ENGINE *e)
365 free_UBSEC_LIBNAME();
366 ERR_unload_UBSEC_strings();
370 /* (de)initialisation functions. */
371 static int ubsec_init(ENGINE *e)
373 t_UBSEC_ubsec_bytes_to_bits *p1;
374 t_UBSEC_ubsec_bits_to_bytes *p2;
375 t_UBSEC_ubsec_open *p3;
376 t_UBSEC_ubsec_close *p4;
377 #ifndef OPENSSL_NO_DH
378 t_UBSEC_diffie_hellman_generate_ioctl *p5;
379 t_UBSEC_diffie_hellman_agree_ioctl *p6;
381 /* #ifndef OPENSSL_NO_RSA */
382 t_UBSEC_rsa_mod_exp_ioctl *p7;
383 t_UBSEC_rsa_mod_exp_crt_ioctl *p8;
385 #ifndef OPENSSL_NO_DSA
386 t_UBSEC_dsa_sign_ioctl *p9;
387 t_UBSEC_dsa_verify_ioctl *p10;
389 t_UBSEC_math_accelerate_ioctl *p11;
390 t_UBSEC_rng_ioctl *p12;
391 t_UBSEC_max_key_len_ioctl *p13;
394 if(ubsec_dso != NULL)
396 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_ALREADY_LOADED);
400 * Attempt to load libubsec.so/ubsec.dll/whatever.
402 ubsec_dso = DSO_load(NULL, get_UBSEC_LIBNAME(), NULL, 0);
403 if(ubsec_dso == NULL)
405 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_DSO_FAILURE);
409 if (!(p1 = (t_UBSEC_ubsec_bytes_to_bits *)
410 DSO_bind_func(ubsec_dso, UBSEC_F1))
411 || !(p2 = (t_UBSEC_ubsec_bits_to_bytes *)
412 DSO_bind_func(ubsec_dso, UBSEC_F2))
413 || !(p3 = (t_UBSEC_ubsec_open *)
414 DSO_bind_func(ubsec_dso, UBSEC_F3))
415 || !(p4 = (t_UBSEC_ubsec_close *)
416 DSO_bind_func(ubsec_dso, UBSEC_F4))
417 #ifndef OPENSSL_NO_DH
418 || !(p5 = (t_UBSEC_diffie_hellman_generate_ioctl *)
419 DSO_bind_func(ubsec_dso, UBSEC_F5))
420 || !(p6 = (t_UBSEC_diffie_hellman_agree_ioctl *)
421 DSO_bind_func(ubsec_dso, UBSEC_F6))
423 /* #ifndef OPENSSL_NO_RSA */
424 || !(p7 = (t_UBSEC_rsa_mod_exp_ioctl *)
425 DSO_bind_func(ubsec_dso, UBSEC_F7))
426 || !(p8 = (t_UBSEC_rsa_mod_exp_crt_ioctl *)
427 DSO_bind_func(ubsec_dso, UBSEC_F8))
429 #ifndef OPENSSL_NO_DSA
430 || !(p9 = (t_UBSEC_dsa_sign_ioctl *)
431 DSO_bind_func(ubsec_dso, UBSEC_F9))
432 || !(p10 = (t_UBSEC_dsa_verify_ioctl *)
433 DSO_bind_func(ubsec_dso, UBSEC_F10))
435 || !(p11 = (t_UBSEC_math_accelerate_ioctl *)
436 DSO_bind_func(ubsec_dso, UBSEC_F11))
437 || !(p12 = (t_UBSEC_rng_ioctl *)
438 DSO_bind_func(ubsec_dso, UBSEC_F12))
439 || !(p13 = (t_UBSEC_max_key_len_ioctl *)
440 DSO_bind_func(ubsec_dso, UBSEC_F13)))
442 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_DSO_FAILURE);
446 /* Copy the pointers */
447 p_UBSEC_ubsec_bytes_to_bits = p1;
448 p_UBSEC_ubsec_bits_to_bytes = p2;
449 p_UBSEC_ubsec_open = p3;
450 p_UBSEC_ubsec_close = p4;
451 #ifndef OPENSSL_NO_DH
452 p_UBSEC_diffie_hellman_generate_ioctl = p5;
453 p_UBSEC_diffie_hellman_agree_ioctl = p6;
455 #ifndef OPENSSL_NO_RSA
456 p_UBSEC_rsa_mod_exp_ioctl = p7;
457 p_UBSEC_rsa_mod_exp_crt_ioctl = p8;
459 #ifndef OPENSSL_NO_DSA
460 p_UBSEC_dsa_sign_ioctl = p9;
461 p_UBSEC_dsa_verify_ioctl = p10;
463 p_UBSEC_math_accelerate_ioctl = p11;
464 p_UBSEC_rng_ioctl = p12;
465 p_UBSEC_max_key_len_ioctl = p13;
467 /* Perform an open to see if there's actually any unit running. */
468 if (((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) > 0) && (p_UBSEC_max_key_len_ioctl(fd, &max_key_len) == 0))
470 p_UBSEC_ubsec_close(fd);
475 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
482 p_UBSEC_ubsec_bytes_to_bits = NULL;
483 p_UBSEC_ubsec_bits_to_bytes = NULL;
484 p_UBSEC_ubsec_open = NULL;
485 p_UBSEC_ubsec_close = NULL;
486 #ifndef OPENSSL_NO_DH
487 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
488 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
490 #ifndef OPENSSL_NO_RSA
491 p_UBSEC_rsa_mod_exp_ioctl = NULL;
492 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
494 #ifndef OPENSSL_NO_DSA
495 p_UBSEC_dsa_sign_ioctl = NULL;
496 p_UBSEC_dsa_verify_ioctl = NULL;
498 p_UBSEC_math_accelerate_ioctl = NULL;
499 p_UBSEC_rng_ioctl = NULL;
500 p_UBSEC_max_key_len_ioctl = NULL;
505 static int ubsec_finish(ENGINE *e)
507 free_UBSEC_LIBNAME();
508 if(ubsec_dso == NULL)
510 UBSECerr(UBSEC_F_UBSEC_FINISH, UBSEC_R_NOT_LOADED);
513 if(!DSO_free(ubsec_dso))
515 UBSECerr(UBSEC_F_UBSEC_FINISH, UBSEC_R_DSO_FAILURE);
519 p_UBSEC_ubsec_bytes_to_bits = NULL;
520 p_UBSEC_ubsec_bits_to_bytes = NULL;
521 p_UBSEC_ubsec_open = NULL;
522 p_UBSEC_ubsec_close = NULL;
523 #ifndef OPENSSL_NO_DH
524 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
525 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
527 #ifndef OPENSSL_NO_RSA
528 p_UBSEC_rsa_mod_exp_ioctl = NULL;
529 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
531 #ifndef OPENSSL_NO_DSA
532 p_UBSEC_dsa_sign_ioctl = NULL;
533 p_UBSEC_dsa_verify_ioctl = NULL;
535 p_UBSEC_math_accelerate_ioctl = NULL;
536 p_UBSEC_rng_ioctl = NULL;
537 p_UBSEC_max_key_len_ioctl = NULL;
541 static int ubsec_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
543 int initialised = ((ubsec_dso == NULL) ? 0 : 1);
546 case UBSEC_CMD_SO_PATH:
549 UBSECerr(UBSEC_F_UBSEC_CTRL,ERR_R_PASSED_NULL_PARAMETER);
554 UBSECerr(UBSEC_F_UBSEC_CTRL,UBSEC_R_ALREADY_LOADED);
557 return set_UBSEC_LIBNAME((const char *)p);
561 UBSECerr(UBSEC_F_UBSEC_CTRL,UBSEC_R_CTRL_COMMAND_NOT_IMPLEMENTED);
565 static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
566 const BIGNUM *m, BN_CTX *ctx)
571 if(ubsec_dso == NULL)
573 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_NOT_LOADED);
577 /* Check if hardware can't handle this argument. */
578 y_len = BN_num_bits(m);
579 if (y_len > max_key_len) {
580 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
581 return BN_mod_exp(r, a, p, m, ctx);
584 if(!bn_wexpand(r, m->top))
586 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_BN_EXPAND_FAIL);
590 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
592 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_UNIT_FAILURE);
593 return BN_mod_exp(r, a, p, m, ctx);
596 if (p_UBSEC_rsa_mod_exp_ioctl(fd, (unsigned char *)a->d, BN_num_bits(a),
597 (unsigned char *)m->d, BN_num_bits(m), (unsigned char *)p->d,
598 BN_num_bits(p), (unsigned char *)r->d, &y_len) != 0)
600 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_REQUEST_FAILED);
601 p_UBSEC_ubsec_close(fd);
603 return BN_mod_exp(r, a, p, m, ctx);
606 p_UBSEC_ubsec_close(fd);
608 r->top = (BN_num_bits(m)+BN_BITS2-1)/BN_BITS2;
612 #ifndef OPENSSL_NO_RSA
613 static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
617 if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp)
619 UBSECerr(UBSEC_F_UBSEC_RSA_MOD_EXP, UBSEC_R_MISSING_KEY_COMPONENTS);
623 to_return = ubsec_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
624 rsa->dmq1, rsa->iqmp, ctx);
625 if (to_return == FAIL_TO_SOFTWARE)
628 * Do in software as hardware failed.
630 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
631 to_return = (*meth->rsa_mod_exp)(r0, I, rsa, ctx);
637 static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
638 const BIGNUM *q, const BIGNUM *dp,
639 const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx)
644 y_len = BN_num_bits(p) + BN_num_bits(q);
646 /* Check if hardware can't handle this argument. */
647 if (y_len > max_key_len) {
648 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
649 return FAIL_TO_SOFTWARE;
652 if (!bn_wexpand(r, p->top + q->top + 1)) {
653 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_BN_EXPAND_FAIL);
657 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
659 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_UNIT_FAILURE);
660 return FAIL_TO_SOFTWARE;
663 if (p_UBSEC_rsa_mod_exp_crt_ioctl(fd,
664 (unsigned char *)a->d, BN_num_bits(a),
665 (unsigned char *)qinv->d, BN_num_bits(qinv),
666 (unsigned char *)dp->d, BN_num_bits(dp),
667 (unsigned char *)p->d, BN_num_bits(p),
668 (unsigned char *)dq->d, BN_num_bits(dq),
669 (unsigned char *)q->d, BN_num_bits(q),
670 (unsigned char *)r->d, &y_len) != 0) {
671 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_REQUEST_FAILED);
672 p_UBSEC_ubsec_close(fd);
673 return FAIL_TO_SOFTWARE;
676 p_UBSEC_ubsec_close(fd);
678 r->top = (BN_num_bits(p) + BN_num_bits(q) + BN_BITS2 - 1)/BN_BITS2;
683 #ifndef OPENSSL_NO_DSA
685 static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
686 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
687 BN_CTX *ctx, BN_MONT_CTX *in_mont)
693 /* let rr = a1 ^ p1 mod m */
694 if (!ubsec_mod_exp(rr,a1,p1,m,ctx)) goto end;
695 /* let t = a2 ^ p2 mod m */
696 if (!ubsec_mod_exp(&t,a2,p2,m,ctx)) goto end;
697 /* let rr = rr * t mod m */
698 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
705 static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
706 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
709 return ubsec_mod_exp(r, a, p, m, ctx);
714 #ifndef OPENSSL_NO_RSA
717 * This function is aliased to mod_exp (with the mont stuff dropped).
719 static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
720 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
724 /* Do in software if the key is too large for the hardware. */
725 if (BN_num_bits(m) > max_key_len)
727 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
728 ret = (*meth->bn_mod_exp)(r, a, p, m, ctx, m_ctx);
732 ret = ubsec_mod_exp(r, a, p, m, ctx);
739 #ifndef OPENSSL_NO_DH
740 /* This function is aliased to mod_exp (with the dh and mont dropped). */
741 static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
742 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
745 return ubsec_mod_exp(r, a, p, m, ctx);
749 #ifndef OPENSSL_NO_DSA
750 static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
752 DSA_SIG *to_return = NULL;
753 int s_len = 160, r_len = 160, d_len, fd;
754 BIGNUM m, *r=NULL, *s=NULL;
760 if ((s == NULL) || (r==NULL))
763 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dlen);
765 if(!bn_wexpand(r, (160+BN_BITS2-1)/BN_BITS2) ||
766 (!bn_wexpand(s, (160+BN_BITS2-1)/BN_BITS2))) {
767 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL);
771 if (BN_bin2bn(dgst,dlen,&m) == NULL) {
772 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL);
776 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
777 const DSA_METHOD *meth;
779 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_UNIT_FAILURE);
780 meth = DSA_OpenSSL();
781 to_return = meth->dsa_do_sign(dgst, dlen, dsa);
785 if (p_UBSEC_dsa_sign_ioctl(fd,
786 /* compute hash before signing */
788 (unsigned char *)dgst, d_len,
790 /* compute random value */
792 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
793 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
794 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
795 (unsigned char *)dsa->priv_key->d, BN_num_bits(dsa->priv_key),
796 (unsigned char *)r->d, &r_len,
797 (unsigned char *)s->d, &s_len ) != 0) {
798 const DSA_METHOD *meth;
800 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_REQUEST_FAILED);
801 p_UBSEC_ubsec_close(fd);
802 meth = DSA_OpenSSL();
803 to_return = meth->dsa_do_sign(dgst, dlen, dsa);
808 p_UBSEC_ubsec_close(fd);
810 r->top = (160+BN_BITS2-1)/BN_BITS2;
811 s->top = (160+BN_BITS2-1)/BN_BITS2;
813 to_return = DSA_SIG_new();
814 if(to_return == NULL) {
815 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL);
831 static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
832 DSA_SIG *sig, DSA *dsa)
841 if(!bn_wexpand(pv, dsa->p->top)) {
842 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_BN_EXPAND_FAIL);
846 v_len = BN_num_bits(dsa->p);
848 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dgst_len);
850 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
851 const DSA_METHOD *meth;
853 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_UNIT_FAILURE);
854 meth = DSA_OpenSSL();
855 to_return = meth->dsa_do_verify(dgst, dgst_len, sig, dsa);
859 if (p_UBSEC_dsa_verify_ioctl(fd, 0, /* compute hash before signing */
860 (unsigned char *)dgst, d_len,
861 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
862 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
863 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
864 (unsigned char *)dsa->pub_key->d, BN_num_bits(dsa->pub_key),
865 (unsigned char *)sig->r->d, BN_num_bits(sig->r),
866 (unsigned char *)sig->s->d, BN_num_bits(sig->s),
867 (unsigned char *)v.d, &v_len) != 0) {
868 const DSA_METHOD *meth;
869 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_REQUEST_FAILED);
870 p_UBSEC_ubsec_close(fd);
872 meth = DSA_OpenSSL();
873 to_return = meth->dsa_do_verify(dgst, dgst_len, sig, dsa);
878 p_UBSEC_ubsec_close(fd);
887 #ifndef OPENSSL_NO_DH
888 static int ubsec_dh_compute_key(unsigned char *key,const BIGNUM *pub_key,DH *dh)
894 k_len = BN_num_bits(dh->p);
896 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)
898 const DH_METHOD *meth;
899 UBSECerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_UNIT_FAILURE);
901 ret = meth->compute_key(key, pub_key, dh);
905 if (p_UBSEC_diffie_hellman_agree_ioctl(fd,
906 (unsigned char *)dh->priv_key->d, BN_num_bits(dh->priv_key),
907 (unsigned char *)pub_key->d, BN_num_bits(pub_key),
908 (unsigned char *)dh->p->d, BN_num_bits(dh->p),
911 /* Hardware's a no go, failover to software */
912 const DH_METHOD *meth;
913 UBSECerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_REQUEST_FAILED);
914 p_UBSEC_ubsec_close(fd);
917 ret = meth->compute_key(key, pub_key, dh);
922 p_UBSEC_ubsec_close(fd);
924 ret = p_UBSEC_ubsec_bits_to_bytes(k_len);
929 static int ubsec_dh_generate_key(DH *dh)
936 BIGNUM *pub_key = NULL;
937 BIGNUM *priv_key = NULL;
940 * How many bits should Random x be? dh_key.c
941 * sets the range from 0 to num_bits(modulus) ???
944 if (dh->priv_key == NULL)
947 if (priv_key == NULL) goto err;
948 priv_key_len = BN_num_bits(dh->p);
949 if(bn_wexpand(priv_key, dh->p->top) == NULL) goto err;
951 if (!BN_rand_range(priv_key, dh->p)) goto err;
952 while (BN_is_zero(priv_key));
953 random_bits = BN_num_bits(priv_key);
957 priv_key = dh->priv_key;
960 if (dh->pub_key == NULL)
963 pub_key_len = BN_num_bits(dh->p);
964 if(bn_wexpand(pub_key, dh->p->top) == NULL) goto err;
965 if(pub_key == NULL) goto err;
969 pub_key = dh->pub_key;
972 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)
974 const DH_METHOD *meth;
975 UBSECerr(UBSEC_F_UBSEC_DH_GENERATE_KEY, UBSEC_R_UNIT_FAILURE);
977 ret = meth->generate_key(dh);
981 if (p_UBSEC_diffie_hellman_generate_ioctl(fd,
982 (unsigned char *)priv_key->d, &priv_key_len,
983 (unsigned char *)pub_key->d, &pub_key_len,
984 (unsigned char *)dh->g->d, BN_num_bits(dh->g),
985 (unsigned char *)dh->p->d, BN_num_bits(dh->p),
986 0, 0, random_bits) != 0)
988 /* Hardware's a no go, failover to software */
989 const DH_METHOD *meth;
991 UBSECerr(UBSEC_F_UBSEC_DH_GENERATE_KEY, UBSEC_R_REQUEST_FAILED);
992 p_UBSEC_ubsec_close(fd);
995 ret = meth->generate_key(dh);
1000 p_UBSEC_ubsec_close(fd);
1002 dh->pub_key = pub_key;
1003 dh->pub_key->top = (pub_key_len + BN_BITS2-1) / BN_BITS2;
1004 dh->priv_key = priv_key;
1005 dh->priv_key->top = (priv_key_len + BN_BITS2-1) / BN_BITS2;
1014 static int ubsec_rand_bytes(unsigned char * buf,
1020 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)
1022 const RAND_METHOD *meth;
1023 UBSECerr(UBSEC_F_UBSEC_RAND_BYTES, UBSEC_R_UNIT_FAILURE);
1024 num = p_UBSEC_ubsec_bits_to_bytes(num);
1025 meth = RAND_SSLeay();
1026 meth->seed(buf, num);
1027 ret = meth->bytes(buf, num);
1031 num *= 8; /* bytes to bits */
1033 if (p_UBSEC_rng_ioctl(fd,
1038 /* Hardware's a no go, failover to software */
1039 const RAND_METHOD *meth;
1041 UBSECerr(UBSEC_F_UBSEC_RAND_BYTES, UBSEC_R_REQUEST_FAILED);
1042 p_UBSEC_ubsec_close(fd);
1044 num = p_UBSEC_ubsec_bits_to_bytes(num);
1045 meth = RAND_SSLeay();
1046 meth->seed(buf, num);
1047 ret = meth->bytes(buf, num);
1052 p_UBSEC_ubsec_close(fd);
1060 static int ubsec_rand_status(void)
1066 /* This stuff is needed if this ENGINE is being compiled into a self-contained
1067 * shared-library. */
1068 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
1069 static int bind_fn(ENGINE *e, const char *id)
1071 if(id && (strcmp(id, engine_ubsec_id) != 0))
1077 IMPLEMENT_DYNAMIC_CHECK_FN()
1078 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
1079 #endif /* OPENSSL_NO_DYNAMIC_ENGINE */
1081 #endif /* !OPENSSL_NO_HW_UBSEC */
1082 #endif /* !OPENSSL_NO_HW */