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 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).
62 #include <openssl/crypto.h>
64 #include <openssl/dso.h>
65 #include "engine_int.h"
66 #include <openssl/engine.h>
69 #ifndef OPENSSL_NO_HW_UBSEC
74 #include "vendor_defns/hw_ubsec.h"
77 static int ubsec_init(void);
78 static int ubsec_finish(void);
79 static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
80 const BIGNUM *m, BN_CTX *ctx);
81 static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
82 const BIGNUM *q, const BIGNUM *dp,
83 const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx);
84 static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
85 static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
86 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
88 static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
89 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
90 BN_CTX *ctx, BN_MONT_CTX *in_mont);
91 static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
92 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
95 static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
96 static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
97 DSA_SIG *sig, DSA *dsa);
98 static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
99 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
101 static int ubsec_dh_compute_key(unsigned char *key,const BIGNUM *pub_key,DH *dh);
102 static int ubsec_dh_generate_key(DH *dh);
105 static int ubsec_rand_bytes(unsigned char *buf, int num);
106 static int ubsec_rand_status(void);
109 /* Our internal RSA_METHOD that we provide pointers to */
111 static RSA_METHOD ubsec_rsa =
128 /* Our internal DSA_METHOD that we provide pointers to */
129 static DSA_METHOD ubsec_dsa =
132 ubsec_dsa_do_sign, /* dsa_do_sign */
133 NULL, /* dsa_sign_setup */
134 ubsec_dsa_verify, /* dsa_do_verify */
135 NULL, /* ubsec_dsa_mod_exp */ /* dsa_mod_exp */
136 NULL, /* ubsec_mod_exp_dsa */ /* bn_mod_exp */
143 /* Our internal DH_METHOD that we provide pointers to */
144 static DH_METHOD ubsec_dh =
147 ubsec_dh_generate_key,
148 ubsec_dh_compute_key,
156 /* Our ENGINE structure. */
157 static ENGINE engine_ubsec =
160 "UBSEC hardware engine support",
169 NULL, /* no ctrl() */
170 NULL, /* no load_privkey() */
171 NULL, /* no load_pubkey() */
173 0, 0, /* no references */
174 NULL, NULL /* unlinked */
177 /* As this is only ever called once, there's no need for locking
178 * (indeed - the lock will already be held by our caller!!!) */
179 ENGINE *ENGINE_ubsec()
181 const RSA_METHOD *meth1;
182 #ifndef HAVE_UBSEC_DH
183 const DH_METHOD *meth3;
184 #endif /* HAVE_UBSEC_DH */
186 /* We know that the "PKCS1_SSLeay()" functions hook properly
187 * to the Broadcom-specific mod_exp and mod_exp_crt so we use
188 * those functions. NB: We don't use ENGINE_openssl() or
189 * anything "more generic" because something like the RSAref
190 * code may not hook properly, and if you own one of these
191 * cards then you have the right to do RSA operations on it
193 meth1 = RSA_PKCS1_SSLeay();
194 ubsec_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
195 ubsec_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
196 ubsec_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
197 ubsec_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
199 #ifndef HAVE_UBSEC_DH
200 /* Much the same for Diffie-Hellman */
201 meth3 = DH_OpenSSL();
202 ubsec_dh.generate_key = meth3->generate_key;
203 ubsec_dh.compute_key = meth3->compute_key;
204 #endif /* HAVE_UBSEC_DH */
206 return &engine_ubsec;
209 /* This is a process-global DSO handle used for loading and unloading
210 * the UBSEC library. NB: This is only set (or unset) during an
211 * init() or finish() call (reference counts permitting) and they're
212 * operating with global locks, so this should be thread-safe
215 static DSO *ubsec_dso = NULL;
217 /* These are the function pointers that are (un)set when the library has
218 * successfully (un)loaded. */
220 static t_UBSEC_ubsec_bytes_to_bits *p_UBSEC_ubsec_bytes_to_bits = NULL;
221 static t_UBSEC_ubsec_bits_to_bytes *p_UBSEC_ubsec_bits_to_bytes = NULL;
222 static t_UBSEC_ubsec_open *p_UBSEC_ubsec_open = NULL;
223 static t_UBSEC_ubsec_close *p_UBSEC_ubsec_close = NULL;
224 static t_UBSEC_diffie_hellman_generate_ioctl
225 *p_UBSEC_diffie_hellman_generate_ioctl = NULL;
226 static t_UBSEC_diffie_hellman_agree_ioctl *p_UBSEC_diffie_hellman_agree_ioctl = NULL;
227 static t_UBSEC_rsa_mod_exp_ioctl *p_UBSEC_rsa_mod_exp_ioctl = NULL;
228 static t_UBSEC_rsa_mod_exp_crt_ioctl *p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
229 static t_UBSEC_dsa_sign_ioctl *p_UBSEC_dsa_sign_ioctl = NULL;
230 static t_UBSEC_dsa_verify_ioctl *p_UBSEC_dsa_verify_ioctl = NULL;
231 static t_UBSEC_math_accelerate_ioctl *p_UBSEC_math_accelerate_ioctl = NULL;
232 static t_UBSEC_rng_ioctl *p_UBSEC_rng_ioctl = NULL;
234 /* (de)initialisation functions. */
235 static int ubsec_init()
237 t_UBSEC_ubsec_bytes_to_bits *p1;
238 t_UBSEC_ubsec_bits_to_bytes *p2;
239 t_UBSEC_ubsec_open *p3;
240 t_UBSEC_ubsec_close *p4;
241 t_UBSEC_diffie_hellman_generate_ioctl *p5;
242 t_UBSEC_diffie_hellman_agree_ioctl *p6;
243 t_UBSEC_rsa_mod_exp_ioctl *p7;
244 t_UBSEC_rsa_mod_exp_crt_ioctl *p8;
245 t_UBSEC_dsa_sign_ioctl *p9;
246 t_UBSEC_dsa_verify_ioctl *p10;
247 t_UBSEC_math_accelerate_ioctl *p11;
248 t_UBSEC_rng_ioctl *p12;
251 if(ubsec_dso != NULL)
253 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_ALREADY_LOADED);
257 * Attempt to load libubsec.so/ubsec.dll/whatever.
259 ubsec_dso = DSO_load(NULL, UBSEC_LIBNAME, NULL, 0);
260 if(ubsec_dso == NULL)
262 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_DSO_FAILURE);
267 !(p1 = (t_UBSEC_ubsec_bytes_to_bits *) DSO_bind_func(ubsec_dso, UBSEC_F1)) ||
268 !(p2 = (t_UBSEC_ubsec_bits_to_bytes *) DSO_bind_func(ubsec_dso, UBSEC_F2)) ||
269 !(p3 = (t_UBSEC_ubsec_open *) DSO_bind_func(ubsec_dso, UBSEC_F3)) ||
270 !(p4 = (t_UBSEC_ubsec_close *) DSO_bind_func(ubsec_dso, UBSEC_F4)) ||
271 !(p5 = (t_UBSEC_diffie_hellman_generate_ioctl *)
272 DSO_bind_func(ubsec_dso, UBSEC_F5)) ||
273 !(p6 = (t_UBSEC_diffie_hellman_agree_ioctl *)
274 DSO_bind_func(ubsec_dso, UBSEC_F6)) ||
275 !(p7 = (t_UBSEC_rsa_mod_exp_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F7)) ||
276 !(p8 = (t_UBSEC_rsa_mod_exp_crt_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F8)) ||
277 !(p9 = (t_UBSEC_dsa_sign_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F9)) ||
278 !(p10 = (t_UBSEC_dsa_verify_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F10)) ||
279 !(p11 = (t_UBSEC_math_accelerate_ioctl *)
280 DSO_bind_func(ubsec_dso, UBSEC_F11)) ||
281 !(p12 = (t_UBSEC_rng_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F12)))
283 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_DSO_FAILURE);
287 /* Copy the pointers */
288 p_UBSEC_ubsec_bytes_to_bits = p1;
289 p_UBSEC_ubsec_bits_to_bytes = p2;
290 p_UBSEC_ubsec_open = p3;
291 p_UBSEC_ubsec_close = p4;
292 p_UBSEC_diffie_hellman_generate_ioctl = p5;
293 p_UBSEC_diffie_hellman_agree_ioctl = p6;
294 p_UBSEC_rsa_mod_exp_ioctl = p7;
295 p_UBSEC_rsa_mod_exp_crt_ioctl = p8;
296 p_UBSEC_dsa_sign_ioctl = p9;
297 p_UBSEC_dsa_verify_ioctl = p10;
298 p_UBSEC_math_accelerate_ioctl = p11;
299 p_UBSEC_rng_ioctl = p12;
301 /* Perform an open to see if there's actually any unit running. */
302 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) > 0)
304 p_UBSEC_ubsec_close(fd);
309 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
315 p_UBSEC_ubsec_bytes_to_bits = NULL;
316 p_UBSEC_ubsec_bits_to_bytes = NULL;
317 p_UBSEC_ubsec_open = NULL;
318 p_UBSEC_ubsec_close = NULL;
319 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
320 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
321 p_UBSEC_rsa_mod_exp_ioctl = NULL;
322 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
323 p_UBSEC_dsa_sign_ioctl = NULL;
324 p_UBSEC_dsa_verify_ioctl = NULL;
325 p_UBSEC_math_accelerate_ioctl = NULL;
326 p_UBSEC_rng_ioctl = NULL;
331 static int ubsec_finish()
333 if(ubsec_dso == NULL)
335 ENGINEerr(ENGINE_F_UBSEC_FINISH, ENGINE_R_NOT_LOADED);
338 if(!DSO_free(ubsec_dso))
340 ENGINEerr(ENGINE_F_UBSEC_FINISH, ENGINE_R_DSO_FAILURE);
344 p_UBSEC_ubsec_bytes_to_bits = NULL;
345 p_UBSEC_ubsec_bits_to_bytes = NULL;
346 p_UBSEC_ubsec_open = NULL;
347 p_UBSEC_ubsec_close = NULL;
348 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
349 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
350 p_UBSEC_rsa_mod_exp_ioctl = NULL;
351 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
352 p_UBSEC_dsa_sign_ioctl = NULL;
353 p_UBSEC_dsa_verify_ioctl = NULL;
354 p_UBSEC_math_accelerate_ioctl = NULL;
355 p_UBSEC_rng_ioctl = NULL;
359 static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
360 const BIGNUM *m, BN_CTX *ctx)
365 if(ubsec_dso == NULL)
367 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_NOT_LOADED);
371 /* Check if hardware can't handle this argument. */
372 y_len = BN_num_bits(m);
374 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
378 if(!bn_wexpand(r, m->top))
380 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_BN_EXPAND_FAIL);
383 memset(r->d, 0, BN_num_bytes(m));
385 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
387 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
391 if (p_UBSEC_rsa_mod_exp_ioctl(fd, (unsigned char *)a->d, BN_num_bits(a),
392 (unsigned char *)m->d, BN_num_bits(m), (unsigned char *)p->d,
393 BN_num_bits(p), (unsigned char *)r->d, &y_len) != 0)
395 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_REQUEST_FAILED);
399 p_UBSEC_ubsec_close(fd);
401 r->top = (BN_num_bits(m)+BN_BITS2-1)/BN_BITS2;
405 static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
410 if((ctx = BN_CTX_new()) == NULL)
413 if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp)
415 ENGINEerr(ENGINE_F_UBSEC_RSA_MOD_EXP, ENGINE_R_MISSING_KEY_COMPONENTS);
420 * Do in software if argument is too large for hardware.
422 if ((BN_num_bits(rsa->p)+BN_num_bits(rsa->q)) > 1024) {
423 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
424 to_return = (*meth->rsa_mod_exp)(r0, I, rsa);
426 to_return = ubsec_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
427 rsa->dmq1, rsa->iqmp, ctx);
435 static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
436 const BIGNUM *q, const BIGNUM *dp,
437 const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx)
443 m_len = BN_num_bytes(p) + BN_num_bytes(q) + 1;
444 y_len = BN_num_bits(p) + BN_num_bits(q);
446 /* Check if hardware can't handle this argument. */
448 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
452 if (!bn_wexpand(r, p->top + q->top + 1)) {
453 ENGINEerr(ENGINE_F_UBSEC_RSA_MOD_EXP_CRT, ENGINE_R_BN_EXPAND_FAIL);
457 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
459 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
463 if (p_UBSEC_rsa_mod_exp_crt_ioctl(fd,
464 (unsigned char *)a->d, BN_num_bits(a),
465 (unsigned char *)qinv->d, BN_num_bits(qinv),
466 (unsigned char *)dp->d, BN_num_bits(dp),
467 (unsigned char *)p->d, BN_num_bits(p),
468 (unsigned char *)dq->d, BN_num_bits(dq),
469 (unsigned char *)q->d, BN_num_bits(q),
470 (unsigned char *)r->d, &y_len) != 0) {
471 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_REQUEST_FAILED);
475 p_UBSEC_ubsec_close(fd);
477 r->top = (BN_num_bits(p) + BN_num_bits(q) + BN_BITS2 - 1)/BN_BITS2;
482 static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
483 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
484 BN_CTX *ctx, BN_MONT_CTX *in_mont)
490 /* let rr = a1 ^ p1 mod m */
491 if (!ubsec_mod_exp(rr,a1,p1,m,ctx)) goto end;
492 /* let t = a2 ^ p2 mod m */
493 if (!ubsec_mod_exp(&t,a2,p2,m,ctx)) goto end;
494 /* let rr = rr * t mod m */
495 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
502 static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
503 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
506 return ubsec_mod_exp(r, a, p, m, ctx);
511 * This function is aliased to mod_exp (with the mont stuff dropped).
513 static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
514 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
518 /* Do in software if the key is too large for the hardware. */
519 if (BN_num_bits(m) > 1024) {
520 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
521 ret = (*meth->bn_mod_exp)(r, a, p, m, ctx, m_ctx);
523 ret = ubsec_mod_exp(r, a, p, m, ctx);
529 /* This function is aliased to mod_exp (with the dh and mont dropped). */
530 static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
531 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
534 return ubsec_mod_exp(r, a, p, m, ctx);
537 static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
539 DSA_SIG *to_return = NULL;
540 int s_len = 160, r_len = 160, d_len, fd;
541 BIGNUM m, *r=NULL, *s=NULL;
547 if ((s == NULL) || (r==NULL))
550 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dlen);
552 if(!bn_wexpand(r, (160+BN_BITS2-1)/BN_BITS2) ||
553 (!bn_wexpand(s, (160+BN_BITS2-1)/BN_BITS2))) {
554 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
558 if (BN_bin2bn(dgst,dlen,&m) == NULL) {
559 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
563 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
565 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
569 if (p_UBSEC_dsa_sign_ioctl(fd, 0, /* compute hash before signing */
570 (unsigned char *)dgst, d_len,
571 NULL, 0, /* compute random value */
572 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
573 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
574 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
575 (unsigned char *)dsa->priv_key->d, BN_num_bits(dsa->priv_key),
576 (unsigned char *)r->d, &r_len,
577 (unsigned char *)s->d, &s_len ) != 0) {
578 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_REQUEST_FAILED);
582 p_UBSEC_ubsec_close(fd);
584 r->top = (160+BN_BITS2-1)/BN_BITS2;
585 s->top = (160+BN_BITS2-1)/BN_BITS2;
587 to_return = DSA_SIG_new();
588 if(to_return == NULL) {
589 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
605 static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
606 DSA_SIG *sig, DSA *dsa)
615 if(!bn_wexpand(&v, dsa->p->top)) {
616 ENGINEerr(ENGINE_F_UBSEC_DSA_VERIFY ,ENGINE_R_BN_EXPAND_FAIL);
620 v_len = BN_num_bits(dsa->p);
622 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dgst_len);
624 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
626 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
630 if (p_UBSEC_dsa_verify_ioctl(fd, 0, /* compute hash before signing */
631 (unsigned char *)dgst, d_len,
632 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
633 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
634 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
635 (unsigned char *)dsa->pub_key->d, BN_num_bits(dsa->pub_key),
636 (unsigned char *)sig->r->d, BN_num_bits(sig->r),
637 (unsigned char *)sig->s->d, BN_num_bits(sig->s),
638 (unsigned char *)v.d, &v_len) != 0) {
639 ENGINEerr(ENGINE_F_UBSEC_DSA_VERIFY , ENGINE_R_REQUEST_FAILED);
643 p_UBSEC_ubsec_close(fd);
651 static int ubsec_dh_compute_key (unsigned char *key,const BIGNUM *pub_key,DH *dh)
656 static int ubsec_dh_generate_key (DH *dh)
662 static int ubsec_rand_bytes(unsigned char *buf, int num)
667 static int ubsec_rand_status(void)
673 #endif /* !OPENSSL_NO_HW_UBSEC */
674 #endif /* !OPENSSL_NO_HW */