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 <openssl/engine.h>
68 #ifndef OPENSSL_NO_HW_UBSEC
73 #include "vendor_defns/hw_ubsec.h"
76 static int ubsec_init(ENGINE *e);
77 static int ubsec_finish(ENGINE *e);
78 static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
79 const BIGNUM *m, BN_CTX *ctx);
80 static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
81 const BIGNUM *q, const BIGNUM *dp,
82 const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx);
83 static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
84 static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
85 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
87 static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
88 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
89 BN_CTX *ctx, BN_MONT_CTX *in_mont);
90 static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
91 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
94 static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
95 static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
96 DSA_SIG *sig, DSA *dsa);
97 static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
98 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
100 static int ubsec_dh_compute_key(unsigned char *key,const BIGNUM *pub_key,DH *dh);
101 static int ubsec_dh_generate_key(DH *dh);
104 static int ubsec_rand_bytes(unsigned char *buf, int num);
105 static int ubsec_rand_status(void);
108 /* Our internal RSA_METHOD that we provide pointers to */
110 static RSA_METHOD ubsec_rsa =
127 /* Our internal DSA_METHOD that we provide pointers to */
128 static DSA_METHOD ubsec_dsa =
131 ubsec_dsa_do_sign, /* dsa_do_sign */
132 NULL, /* dsa_sign_setup */
133 ubsec_dsa_verify, /* dsa_do_verify */
134 NULL, /* ubsec_dsa_mod_exp */ /* dsa_mod_exp */
135 NULL, /* ubsec_mod_exp_dsa */ /* bn_mod_exp */
142 /* Our internal DH_METHOD that we provide pointers to */
143 static DH_METHOD ubsec_dh =
146 ubsec_dh_generate_key,
147 ubsec_dh_compute_key,
155 /* Constants used when creating the ENGINE */
156 static const char *engine_ubsec_id = "ubsec";
157 static const char *engine_ubsec_name = "UBSEC hardware engine support";
159 /* As this is only ever called once, there's no need for locking
160 * (indeed - the lock will already be held by our caller!!!) */
161 ENGINE *ENGINE_ubsec()
163 const RSA_METHOD *meth1;
164 #ifndef HAVE_UBSEC_DH
165 const DH_METHOD *meth3;
166 #endif /* HAVE_UBSEC_DH */
167 ENGINE *ret = ENGINE_new();
170 if(!ENGINE_set_id(ret, engine_ubsec_id) ||
171 !ENGINE_set_name(ret, engine_ubsec_name) ||
172 !ENGINE_set_RSA(ret, &ubsec_rsa) ||
173 !ENGINE_set_DSA(ret, &ubsec_dsa) ||
174 !ENGINE_set_DH(ret, &ubsec_dh) ||
175 !ENGINE_set_BN_mod_exp(ret, ubsec_mod_exp) ||
176 !ENGINE_set_BN_mod_exp_crt(ret, ubsec_mod_exp_crt) ||
177 !ENGINE_set_init_function(ret, ubsec_init) ||
178 !ENGINE_set_finish_function(ret, ubsec_finish))
184 /* We know that the "PKCS1_SSLeay()" functions hook properly
185 * to the Broadcom-specific mod_exp and mod_exp_crt so we use
186 * those functions. NB: We don't use ENGINE_openssl() or
187 * anything "more generic" because something like the RSAref
188 * code may not hook properly, and if you own one of these
189 * cards then you have the right to do RSA operations on it
191 meth1 = RSA_PKCS1_SSLeay();
192 ubsec_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
193 ubsec_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
194 ubsec_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
195 ubsec_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
197 #ifndef HAVE_UBSEC_DH
198 /* Much the same for Diffie-Hellman */
199 meth3 = DH_OpenSSL();
200 ubsec_dh.generate_key = meth3->generate_key;
201 ubsec_dh.compute_key = meth3->compute_key;
202 #endif /* HAVE_UBSEC_DH */
207 /* This is a process-global DSO handle used for loading and unloading
208 * the UBSEC library. NB: This is only set (or unset) during an
209 * init() or finish() call (reference counts permitting) and they're
210 * operating with global locks, so this should be thread-safe
213 static DSO *ubsec_dso = NULL;
215 /* These are the function pointers that are (un)set when the library has
216 * successfully (un)loaded. */
218 static t_UBSEC_ubsec_bytes_to_bits *p_UBSEC_ubsec_bytes_to_bits = NULL;
219 static t_UBSEC_ubsec_bits_to_bytes *p_UBSEC_ubsec_bits_to_bytes = NULL;
220 static t_UBSEC_ubsec_open *p_UBSEC_ubsec_open = NULL;
221 static t_UBSEC_ubsec_close *p_UBSEC_ubsec_close = NULL;
222 static t_UBSEC_diffie_hellman_generate_ioctl
223 *p_UBSEC_diffie_hellman_generate_ioctl = NULL;
224 static t_UBSEC_diffie_hellman_agree_ioctl *p_UBSEC_diffie_hellman_agree_ioctl = NULL;
225 static t_UBSEC_rsa_mod_exp_ioctl *p_UBSEC_rsa_mod_exp_ioctl = NULL;
226 static t_UBSEC_rsa_mod_exp_crt_ioctl *p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
227 static t_UBSEC_dsa_sign_ioctl *p_UBSEC_dsa_sign_ioctl = NULL;
228 static t_UBSEC_dsa_verify_ioctl *p_UBSEC_dsa_verify_ioctl = NULL;
229 static t_UBSEC_math_accelerate_ioctl *p_UBSEC_math_accelerate_ioctl = NULL;
230 static t_UBSEC_rng_ioctl *p_UBSEC_rng_ioctl = NULL;
233 * These are the static string constants for the DSO file name and the function
234 * symbol names to bind to.
237 static const char *UBSEC_LIBNAME = "ubsec";
238 static const char *UBSEC_F1 = "ubsec_bytes_to_bits";
239 static const char *UBSEC_F2 = "ubsec_bits_to_bytes";
240 static const char *UBSEC_F3 = "ubsec_open";
241 static const char *UBSEC_F4 = "ubsec_close";
242 static const char *UBSEC_F5 = "diffie_hellman_generate_ioctl";
243 static const char *UBSEC_F6 = "diffie_hellman_agree_ioctl";
244 static const char *UBSEC_F7 = "rsa_mod_exp_ioctl";
245 static const char *UBSEC_F8 = "rsa_mod_exp_crt_ioctl";
246 static const char *UBSEC_F9 = "dsa_sign_ioctl";
247 static const char *UBSEC_F10 = "dsa_verify_ioctl";
248 static const char *UBSEC_F11 = "math_accelerate_ioctl";
249 static const char *UBSEC_F12 = "rng_ioctl";
251 /* (de)initialisation functions. */
252 static int ubsec_init(ENGINE *e)
254 t_UBSEC_ubsec_bytes_to_bits *p1;
255 t_UBSEC_ubsec_bits_to_bytes *p2;
256 t_UBSEC_ubsec_open *p3;
257 t_UBSEC_ubsec_close *p4;
258 t_UBSEC_diffie_hellman_generate_ioctl *p5;
259 t_UBSEC_diffie_hellman_agree_ioctl *p6;
260 t_UBSEC_rsa_mod_exp_ioctl *p7;
261 t_UBSEC_rsa_mod_exp_crt_ioctl *p8;
262 t_UBSEC_dsa_sign_ioctl *p9;
263 t_UBSEC_dsa_verify_ioctl *p10;
264 t_UBSEC_math_accelerate_ioctl *p11;
265 t_UBSEC_rng_ioctl *p12;
268 if(ubsec_dso != NULL)
270 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_ALREADY_LOADED);
274 * Attempt to load libubsec.so/ubsec.dll/whatever.
276 ubsec_dso = DSO_load(NULL, UBSEC_LIBNAME, NULL, 0);
277 if(ubsec_dso == NULL)
279 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_DSO_FAILURE);
284 !(p1 = (t_UBSEC_ubsec_bytes_to_bits *) DSO_bind_func(ubsec_dso, UBSEC_F1)) ||
285 !(p2 = (t_UBSEC_ubsec_bits_to_bytes *) DSO_bind_func(ubsec_dso, UBSEC_F2)) ||
286 !(p3 = (t_UBSEC_ubsec_open *) DSO_bind_func(ubsec_dso, UBSEC_F3)) ||
287 !(p4 = (t_UBSEC_ubsec_close *) DSO_bind_func(ubsec_dso, UBSEC_F4)) ||
288 !(p5 = (t_UBSEC_diffie_hellman_generate_ioctl *)
289 DSO_bind_func(ubsec_dso, UBSEC_F5)) ||
290 !(p6 = (t_UBSEC_diffie_hellman_agree_ioctl *)
291 DSO_bind_func(ubsec_dso, UBSEC_F6)) ||
292 !(p7 = (t_UBSEC_rsa_mod_exp_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F7)) ||
293 !(p8 = (t_UBSEC_rsa_mod_exp_crt_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F8)) ||
294 !(p9 = (t_UBSEC_dsa_sign_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F9)) ||
295 !(p10 = (t_UBSEC_dsa_verify_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F10)) ||
296 !(p11 = (t_UBSEC_math_accelerate_ioctl *)
297 DSO_bind_func(ubsec_dso, UBSEC_F11)) ||
298 !(p12 = (t_UBSEC_rng_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F12)))
300 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_DSO_FAILURE);
304 /* Copy the pointers */
305 p_UBSEC_ubsec_bytes_to_bits = p1;
306 p_UBSEC_ubsec_bits_to_bytes = p2;
307 p_UBSEC_ubsec_open = p3;
308 p_UBSEC_ubsec_close = p4;
309 p_UBSEC_diffie_hellman_generate_ioctl = p5;
310 p_UBSEC_diffie_hellman_agree_ioctl = p6;
311 p_UBSEC_rsa_mod_exp_ioctl = p7;
312 p_UBSEC_rsa_mod_exp_crt_ioctl = p8;
313 p_UBSEC_dsa_sign_ioctl = p9;
314 p_UBSEC_dsa_verify_ioctl = p10;
315 p_UBSEC_math_accelerate_ioctl = p11;
316 p_UBSEC_rng_ioctl = p12;
318 /* Perform an open to see if there's actually any unit running. */
319 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) > 0)
321 p_UBSEC_ubsec_close(fd);
326 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
332 p_UBSEC_ubsec_bytes_to_bits = NULL;
333 p_UBSEC_ubsec_bits_to_bytes = NULL;
334 p_UBSEC_ubsec_open = NULL;
335 p_UBSEC_ubsec_close = NULL;
336 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
337 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
338 p_UBSEC_rsa_mod_exp_ioctl = NULL;
339 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
340 p_UBSEC_dsa_sign_ioctl = NULL;
341 p_UBSEC_dsa_verify_ioctl = NULL;
342 p_UBSEC_math_accelerate_ioctl = NULL;
343 p_UBSEC_rng_ioctl = NULL;
348 static int ubsec_finish(ENGINE *e)
350 if(ubsec_dso == NULL)
352 ENGINEerr(ENGINE_F_UBSEC_FINISH, ENGINE_R_NOT_LOADED);
355 if(!DSO_free(ubsec_dso))
357 ENGINEerr(ENGINE_F_UBSEC_FINISH, ENGINE_R_DSO_FAILURE);
361 p_UBSEC_ubsec_bytes_to_bits = NULL;
362 p_UBSEC_ubsec_bits_to_bytes = NULL;
363 p_UBSEC_ubsec_open = NULL;
364 p_UBSEC_ubsec_close = NULL;
365 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
366 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
367 p_UBSEC_rsa_mod_exp_ioctl = NULL;
368 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
369 p_UBSEC_dsa_sign_ioctl = NULL;
370 p_UBSEC_dsa_verify_ioctl = NULL;
371 p_UBSEC_math_accelerate_ioctl = NULL;
372 p_UBSEC_rng_ioctl = NULL;
376 static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
377 const BIGNUM *m, BN_CTX *ctx)
382 if(ubsec_dso == NULL)
384 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_NOT_LOADED);
388 /* Check if hardware can't handle this argument. */
389 y_len = BN_num_bits(m);
391 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
395 if(!bn_wexpand(r, m->top))
397 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_BN_EXPAND_FAIL);
400 memset(r->d, 0, BN_num_bytes(m));
402 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
404 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
408 if (p_UBSEC_rsa_mod_exp_ioctl(fd, (unsigned char *)a->d, BN_num_bits(a),
409 (unsigned char *)m->d, BN_num_bits(m), (unsigned char *)p->d,
410 BN_num_bits(p), (unsigned char *)r->d, &y_len) != 0)
412 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_REQUEST_FAILED);
416 p_UBSEC_ubsec_close(fd);
418 r->top = (BN_num_bits(m)+BN_BITS2-1)/BN_BITS2;
422 static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
427 if((ctx = BN_CTX_new()) == NULL)
430 if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp)
432 ENGINEerr(ENGINE_F_UBSEC_RSA_MOD_EXP, ENGINE_R_MISSING_KEY_COMPONENTS);
437 * Do in software if argument is too large for hardware.
439 if ((BN_num_bits(rsa->p)+BN_num_bits(rsa->q)) > 1024) {
440 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
441 to_return = (*meth->rsa_mod_exp)(r0, I, rsa);
443 to_return = ubsec_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
444 rsa->dmq1, rsa->iqmp, ctx);
452 static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
453 const BIGNUM *q, const BIGNUM *dp,
454 const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx)
460 m_len = BN_num_bytes(p) + BN_num_bytes(q) + 1;
461 y_len = BN_num_bits(p) + BN_num_bits(q);
463 /* Check if hardware can't handle this argument. */
465 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
469 if (!bn_wexpand(r, p->top + q->top + 1)) {
470 ENGINEerr(ENGINE_F_UBSEC_RSA_MOD_EXP_CRT, ENGINE_R_BN_EXPAND_FAIL);
474 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
476 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
480 if (p_UBSEC_rsa_mod_exp_crt_ioctl(fd,
481 (unsigned char *)a->d, BN_num_bits(a),
482 (unsigned char *)qinv->d, BN_num_bits(qinv),
483 (unsigned char *)dp->d, BN_num_bits(dp),
484 (unsigned char *)p->d, BN_num_bits(p),
485 (unsigned char *)dq->d, BN_num_bits(dq),
486 (unsigned char *)q->d, BN_num_bits(q),
487 (unsigned char *)r->d, &y_len) != 0) {
488 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_REQUEST_FAILED);
492 p_UBSEC_ubsec_close(fd);
494 r->top = (BN_num_bits(p) + BN_num_bits(q) + BN_BITS2 - 1)/BN_BITS2;
499 static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
500 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
501 BN_CTX *ctx, BN_MONT_CTX *in_mont)
507 /* let rr = a1 ^ p1 mod m */
508 if (!ubsec_mod_exp(rr,a1,p1,m,ctx)) goto end;
509 /* let t = a2 ^ p2 mod m */
510 if (!ubsec_mod_exp(&t,a2,p2,m,ctx)) goto end;
511 /* let rr = rr * t mod m */
512 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
519 static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
520 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
523 return ubsec_mod_exp(r, a, p, m, ctx);
528 * This function is aliased to mod_exp (with the mont stuff dropped).
530 static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
531 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
535 /* Do in software if the key is too large for the hardware. */
536 if (BN_num_bits(m) > 1024) {
537 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
538 ret = (*meth->bn_mod_exp)(r, a, p, m, ctx, m_ctx);
540 ret = ubsec_mod_exp(r, a, p, m, ctx);
546 /* This function is aliased to mod_exp (with the dh and mont dropped). */
547 static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
548 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
551 return ubsec_mod_exp(r, a, p, m, ctx);
554 static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
556 DSA_SIG *to_return = NULL;
557 int s_len = 160, r_len = 160, d_len, fd;
558 BIGNUM m, *r=NULL, *s=NULL;
564 if ((s == NULL) || (r==NULL))
567 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dlen);
569 if(!bn_wexpand(r, (160+BN_BITS2-1)/BN_BITS2) ||
570 (!bn_wexpand(s, (160+BN_BITS2-1)/BN_BITS2))) {
571 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
575 if (BN_bin2bn(dgst,dlen,&m) == NULL) {
576 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
580 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
582 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
586 if (p_UBSEC_dsa_sign_ioctl(fd, 0, /* compute hash before signing */
587 (unsigned char *)dgst, d_len,
588 NULL, 0, /* compute random value */
589 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
590 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
591 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
592 (unsigned char *)dsa->priv_key->d, BN_num_bits(dsa->priv_key),
593 (unsigned char *)r->d, &r_len,
594 (unsigned char *)s->d, &s_len ) != 0) {
595 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_REQUEST_FAILED);
599 p_UBSEC_ubsec_close(fd);
601 r->top = (160+BN_BITS2-1)/BN_BITS2;
602 s->top = (160+BN_BITS2-1)/BN_BITS2;
604 to_return = DSA_SIG_new();
605 if(to_return == NULL) {
606 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
622 static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
623 DSA_SIG *sig, DSA *dsa)
632 if(!bn_wexpand(&v, dsa->p->top)) {
633 ENGINEerr(ENGINE_F_UBSEC_DSA_VERIFY ,ENGINE_R_BN_EXPAND_FAIL);
637 v_len = BN_num_bits(dsa->p);
639 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dgst_len);
641 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
643 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
647 if (p_UBSEC_dsa_verify_ioctl(fd, 0, /* compute hash before signing */
648 (unsigned char *)dgst, d_len,
649 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
650 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
651 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
652 (unsigned char *)dsa->pub_key->d, BN_num_bits(dsa->pub_key),
653 (unsigned char *)sig->r->d, BN_num_bits(sig->r),
654 (unsigned char *)sig->s->d, BN_num_bits(sig->s),
655 (unsigned char *)v.d, &v_len) != 0) {
656 ENGINEerr(ENGINE_F_UBSEC_DSA_VERIFY , ENGINE_R_REQUEST_FAILED);
660 p_UBSEC_ubsec_close(fd);
668 static int ubsec_dh_compute_key (unsigned char *key,const BIGNUM *pub_key,DH *dh)
673 static int ubsec_dh_generate_key (DH *dh)
679 static int ubsec_rand_bytes(unsigned char *buf, int num)
684 static int ubsec_rand_status(void)
690 #endif /* !OPENSSL_NO_HW_UBSEC */
691 #endif /* !OPENSSL_NO_HW */