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(ENGINE *e);
78 static int ubsec_finish(ENGINE *e);
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;
235 * These are the static string constants for the DSO file name and the function
236 * symbol names to bind to.
239 static const char *UBSEC_LIBNAME = "ubsec";
240 static const char *UBSEC_F1 = "ubsec_bytes_to_bits";
241 static const char *UBSEC_F2 = "ubsec_bits_to_bytes";
242 static const char *UBSEC_F3 = "ubsec_open";
243 static const char *UBSEC_F4 = "ubsec_close";
244 static const char *UBSEC_F5 = "diffie_hellman_generate_ioctl";
245 static const char *UBSEC_F6 = "diffie_hellman_agree_ioctl";
246 static const char *UBSEC_F7 = "rsa_mod_exp_ioctl";
247 static const char *UBSEC_F8 = "rsa_mod_exp_crt_ioctl";
248 static const char *UBSEC_F9 = "dsa_sign_ioctl";
249 static const char *UBSEC_F10 = "dsa_verify_ioctl";
250 static const char *UBSEC_F11 = "math_accelerate_ioctl";
251 static const char *UBSEC_F12 = "rng_ioctl";
253 /* (de)initialisation functions. */
254 static int ubsec_init(ENGINE *e)
256 t_UBSEC_ubsec_bytes_to_bits *p1;
257 t_UBSEC_ubsec_bits_to_bytes *p2;
258 t_UBSEC_ubsec_open *p3;
259 t_UBSEC_ubsec_close *p4;
260 t_UBSEC_diffie_hellman_generate_ioctl *p5;
261 t_UBSEC_diffie_hellman_agree_ioctl *p6;
262 t_UBSEC_rsa_mod_exp_ioctl *p7;
263 t_UBSEC_rsa_mod_exp_crt_ioctl *p8;
264 t_UBSEC_dsa_sign_ioctl *p9;
265 t_UBSEC_dsa_verify_ioctl *p10;
266 t_UBSEC_math_accelerate_ioctl *p11;
267 t_UBSEC_rng_ioctl *p12;
270 if(ubsec_dso != NULL)
272 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_ALREADY_LOADED);
276 * Attempt to load libubsec.so/ubsec.dll/whatever.
278 ubsec_dso = DSO_load(NULL, UBSEC_LIBNAME, NULL, 0);
279 if(ubsec_dso == NULL)
281 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_DSO_FAILURE);
286 !(p1 = (t_UBSEC_ubsec_bytes_to_bits *) DSO_bind_func(ubsec_dso, UBSEC_F1)) ||
287 !(p2 = (t_UBSEC_ubsec_bits_to_bytes *) DSO_bind_func(ubsec_dso, UBSEC_F2)) ||
288 !(p3 = (t_UBSEC_ubsec_open *) DSO_bind_func(ubsec_dso, UBSEC_F3)) ||
289 !(p4 = (t_UBSEC_ubsec_close *) DSO_bind_func(ubsec_dso, UBSEC_F4)) ||
290 !(p5 = (t_UBSEC_diffie_hellman_generate_ioctl *)
291 DSO_bind_func(ubsec_dso, UBSEC_F5)) ||
292 !(p6 = (t_UBSEC_diffie_hellman_agree_ioctl *)
293 DSO_bind_func(ubsec_dso, UBSEC_F6)) ||
294 !(p7 = (t_UBSEC_rsa_mod_exp_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F7)) ||
295 !(p8 = (t_UBSEC_rsa_mod_exp_crt_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F8)) ||
296 !(p9 = (t_UBSEC_dsa_sign_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F9)) ||
297 !(p10 = (t_UBSEC_dsa_verify_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F10)) ||
298 !(p11 = (t_UBSEC_math_accelerate_ioctl *)
299 DSO_bind_func(ubsec_dso, UBSEC_F11)) ||
300 !(p12 = (t_UBSEC_rng_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F12)))
302 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_DSO_FAILURE);
306 /* Copy the pointers */
307 p_UBSEC_ubsec_bytes_to_bits = p1;
308 p_UBSEC_ubsec_bits_to_bytes = p2;
309 p_UBSEC_ubsec_open = p3;
310 p_UBSEC_ubsec_close = p4;
311 p_UBSEC_diffie_hellman_generate_ioctl = p5;
312 p_UBSEC_diffie_hellman_agree_ioctl = p6;
313 p_UBSEC_rsa_mod_exp_ioctl = p7;
314 p_UBSEC_rsa_mod_exp_crt_ioctl = p8;
315 p_UBSEC_dsa_sign_ioctl = p9;
316 p_UBSEC_dsa_verify_ioctl = p10;
317 p_UBSEC_math_accelerate_ioctl = p11;
318 p_UBSEC_rng_ioctl = p12;
320 /* Perform an open to see if there's actually any unit running. */
321 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) > 0)
323 p_UBSEC_ubsec_close(fd);
328 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
334 p_UBSEC_ubsec_bytes_to_bits = NULL;
335 p_UBSEC_ubsec_bits_to_bytes = NULL;
336 p_UBSEC_ubsec_open = NULL;
337 p_UBSEC_ubsec_close = NULL;
338 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
339 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
340 p_UBSEC_rsa_mod_exp_ioctl = NULL;
341 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
342 p_UBSEC_dsa_sign_ioctl = NULL;
343 p_UBSEC_dsa_verify_ioctl = NULL;
344 p_UBSEC_math_accelerate_ioctl = NULL;
345 p_UBSEC_rng_ioctl = NULL;
350 static int ubsec_finish(ENGINE *e)
352 if(ubsec_dso == NULL)
354 ENGINEerr(ENGINE_F_UBSEC_FINISH, ENGINE_R_NOT_LOADED);
357 if(!DSO_free(ubsec_dso))
359 ENGINEerr(ENGINE_F_UBSEC_FINISH, ENGINE_R_DSO_FAILURE);
363 p_UBSEC_ubsec_bytes_to_bits = NULL;
364 p_UBSEC_ubsec_bits_to_bytes = NULL;
365 p_UBSEC_ubsec_open = NULL;
366 p_UBSEC_ubsec_close = NULL;
367 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
368 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
369 p_UBSEC_rsa_mod_exp_ioctl = NULL;
370 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
371 p_UBSEC_dsa_sign_ioctl = NULL;
372 p_UBSEC_dsa_verify_ioctl = NULL;
373 p_UBSEC_math_accelerate_ioctl = NULL;
374 p_UBSEC_rng_ioctl = NULL;
378 static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
379 const BIGNUM *m, BN_CTX *ctx)
384 if(ubsec_dso == NULL)
386 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_NOT_LOADED);
390 /* Check if hardware can't handle this argument. */
391 y_len = BN_num_bits(m);
393 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
397 if(!bn_wexpand(r, m->top))
399 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_BN_EXPAND_FAIL);
402 memset(r->d, 0, BN_num_bytes(m));
404 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
406 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
410 if (p_UBSEC_rsa_mod_exp_ioctl(fd, (unsigned char *)a->d, BN_num_bits(a),
411 (unsigned char *)m->d, BN_num_bits(m), (unsigned char *)p->d,
412 BN_num_bits(p), (unsigned char *)r->d, &y_len) != 0)
414 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_REQUEST_FAILED);
418 p_UBSEC_ubsec_close(fd);
420 r->top = (BN_num_bits(m)+BN_BITS2-1)/BN_BITS2;
424 static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
429 if((ctx = BN_CTX_new()) == NULL)
432 if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp)
434 ENGINEerr(ENGINE_F_UBSEC_RSA_MOD_EXP, ENGINE_R_MISSING_KEY_COMPONENTS);
439 * Do in software if argument is too large for hardware.
441 if ((BN_num_bits(rsa->p)+BN_num_bits(rsa->q)) > 1024) {
442 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
443 to_return = (*meth->rsa_mod_exp)(r0, I, rsa);
445 to_return = ubsec_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
446 rsa->dmq1, rsa->iqmp, ctx);
454 static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
455 const BIGNUM *q, const BIGNUM *dp,
456 const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx)
462 m_len = BN_num_bytes(p) + BN_num_bytes(q) + 1;
463 y_len = BN_num_bits(p) + BN_num_bits(q);
465 /* Check if hardware can't handle this argument. */
467 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
471 if (!bn_wexpand(r, p->top + q->top + 1)) {
472 ENGINEerr(ENGINE_F_UBSEC_RSA_MOD_EXP_CRT, ENGINE_R_BN_EXPAND_FAIL);
476 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
478 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
482 if (p_UBSEC_rsa_mod_exp_crt_ioctl(fd,
483 (unsigned char *)a->d, BN_num_bits(a),
484 (unsigned char *)qinv->d, BN_num_bits(qinv),
485 (unsigned char *)dp->d, BN_num_bits(dp),
486 (unsigned char *)p->d, BN_num_bits(p),
487 (unsigned char *)dq->d, BN_num_bits(dq),
488 (unsigned char *)q->d, BN_num_bits(q),
489 (unsigned char *)r->d, &y_len) != 0) {
490 ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_REQUEST_FAILED);
494 p_UBSEC_ubsec_close(fd);
496 r->top = (BN_num_bits(p) + BN_num_bits(q) + BN_BITS2 - 1)/BN_BITS2;
501 static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
502 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
503 BN_CTX *ctx, BN_MONT_CTX *in_mont)
509 /* let rr = a1 ^ p1 mod m */
510 if (!ubsec_mod_exp(rr,a1,p1,m,ctx)) goto end;
511 /* let t = a2 ^ p2 mod m */
512 if (!ubsec_mod_exp(&t,a2,p2,m,ctx)) goto end;
513 /* let rr = rr * t mod m */
514 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
521 static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
522 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
525 return ubsec_mod_exp(r, a, p, m, ctx);
530 * This function is aliased to mod_exp (with the mont stuff dropped).
532 static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
533 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
537 /* Do in software if the key is too large for the hardware. */
538 if (BN_num_bits(m) > 1024) {
539 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
540 ret = (*meth->bn_mod_exp)(r, a, p, m, ctx, m_ctx);
542 ret = ubsec_mod_exp(r, a, p, m, ctx);
548 /* This function is aliased to mod_exp (with the dh and mont dropped). */
549 static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
550 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
553 return ubsec_mod_exp(r, a, p, m, ctx);
556 static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
558 DSA_SIG *to_return = NULL;
559 int s_len = 160, r_len = 160, d_len, fd;
560 BIGNUM m, *r=NULL, *s=NULL;
566 if ((s == NULL) || (r==NULL))
569 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dlen);
571 if(!bn_wexpand(r, (160+BN_BITS2-1)/BN_BITS2) ||
572 (!bn_wexpand(s, (160+BN_BITS2-1)/BN_BITS2))) {
573 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
577 if (BN_bin2bn(dgst,dlen,&m) == NULL) {
578 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
582 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
584 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
588 if (p_UBSEC_dsa_sign_ioctl(fd, 0, /* compute hash before signing */
589 (unsigned char *)dgst, d_len,
590 NULL, 0, /* compute random value */
591 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
592 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
593 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
594 (unsigned char *)dsa->priv_key->d, BN_num_bits(dsa->priv_key),
595 (unsigned char *)r->d, &r_len,
596 (unsigned char *)s->d, &s_len ) != 0) {
597 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_REQUEST_FAILED);
601 p_UBSEC_ubsec_close(fd);
603 r->top = (160+BN_BITS2-1)/BN_BITS2;
604 s->top = (160+BN_BITS2-1)/BN_BITS2;
606 to_return = DSA_SIG_new();
607 if(to_return == NULL) {
608 ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
624 static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
625 DSA_SIG *sig, DSA *dsa)
634 if(!bn_wexpand(&v, dsa->p->top)) {
635 ENGINEerr(ENGINE_F_UBSEC_DSA_VERIFY ,ENGINE_R_BN_EXPAND_FAIL);
639 v_len = BN_num_bits(dsa->p);
641 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dgst_len);
643 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
645 ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
649 if (p_UBSEC_dsa_verify_ioctl(fd, 0, /* compute hash before signing */
650 (unsigned char *)dgst, d_len,
651 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
652 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
653 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
654 (unsigned char *)dsa->pub_key->d, BN_num_bits(dsa->pub_key),
655 (unsigned char *)sig->r->d, BN_num_bits(sig->r),
656 (unsigned char *)sig->s->d, BN_num_bits(sig->s),
657 (unsigned char *)v.d, &v_len) != 0) {
658 ENGINEerr(ENGINE_F_UBSEC_DSA_VERIFY , ENGINE_R_REQUEST_FAILED);
662 p_UBSEC_ubsec_close(fd);
670 static int ubsec_dh_compute_key (unsigned char *key,const BIGNUM *pub_key,DH *dh)
675 static int ubsec_dh_generate_key (DH *dh)
681 static int ubsec_rand_bytes(unsigned char *buf, int num)
686 static int ubsec_rand_status(void)
692 #endif /* !OPENSSL_NO_HW_UBSEC */
693 #endif /* !OPENSSL_NO_HW */