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5572f482 | 1 | /* crypto/engine/hw_ubsec.c */ |
40720ce3 MC |
2 | /* |
3 | * Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL project | |
4 | * 2000. Cloned shamelessly by Joe Tardo. | |
5572f482 RL |
5 | */ |
6 | /* ==================================================================== | |
7 | * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved. | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * | |
13 | * 1. Redistributions of source code must retain the above copyright | |
40720ce3 | 14 | * notice, this list of conditions and the following disclaimer. |
5572f482 RL |
15 | * |
16 | * 2. Redistributions in binary form must reproduce the above copyright | |
17 | * notice, this list of conditions and the following disclaimer in | |
18 | * the documentation and/or other materials provided with the | |
19 | * distribution. | |
20 | * | |
21 | * 3. All advertising materials mentioning features or use of this | |
22 | * software must display the following acknowledgment: | |
23 | * "This product includes software developed by the OpenSSL Project | |
24 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
25 | * | |
26 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
27 | * endorse or promote products derived from this software without | |
28 | * prior written permission. For written permission, please contact | |
29 | * licensing@OpenSSL.org. | |
30 | * | |
31 | * 5. Products derived from this software may not be called "OpenSSL" | |
32 | * nor may "OpenSSL" appear in their names without prior written | |
33 | * permission of the OpenSSL Project. | |
34 | * | |
35 | * 6. Redistributions of any form whatsoever must retain the following | |
36 | * acknowledgment: | |
37 | * "This product includes software developed by the OpenSSL Project | |
38 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
39 | * | |
40 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
41 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
43 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
44 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
45 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
46 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
47 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
49 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
50 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
51 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
52 | * ==================================================================== | |
53 | * | |
54 | * This product includes cryptographic software written by Eric Young | |
55 | * (eay@cryptsoft.com). This product includes software written by Tim | |
56 | * Hudson (tjh@cryptsoft.com). | |
57 | * | |
58 | */ | |
59 | ||
60 | #include <stdio.h> | |
5be1264b | 61 | #include <string.h> |
5572f482 | 62 | #include <openssl/crypto.h> |
665dc392 | 63 | #include <openssl/buffer.h> |
5572f482 RL |
64 | #include <openssl/dso.h> |
65 | #include <openssl/engine.h> | |
4913b88f | 66 | #ifndef OPENSSL_NO_RSA |
40720ce3 | 67 | # include <openssl/rsa.h> |
4913b88f NL |
68 | #endif |
69 | #ifndef OPENSSL_NO_DSA | |
40720ce3 | 70 | # include <openssl/dsa.h> |
4913b88f NL |
71 | #endif |
72 | #ifndef OPENSSL_NO_DH | |
40720ce3 | 73 | # include <openssl/dh.h> |
4913b88f | 74 | #endif |
f15390bd | 75 | #include <openssl/bn.h> |
5572f482 RL |
76 | |
77 | #ifndef OPENSSL_NO_HW | |
40720ce3 | 78 | # ifndef OPENSSL_NO_HW_UBSEC |
5572f482 | 79 | |
40720ce3 MC |
80 | # ifdef FLAT_INC |
81 | # include "hw_ubsec.h" | |
82 | # else | |
83 | # include "vendor_defns/hw_ubsec.h" | |
84 | # endif | |
5572f482 | 85 | |
40720ce3 MC |
86 | # define UBSEC_LIB_NAME "ubsec engine" |
87 | # include "e_ubsec_err.c" | |
5572f482 | 88 | |
40720ce3 | 89 | # define FAIL_TO_SOFTWARE -15 |
5572f482 RL |
90 | |
91 | static int ubsec_destroy(ENGINE *e); | |
92 | static int ubsec_init(ENGINE *e); | |
93 | static int ubsec_finish(ENGINE *e); | |
40720ce3 | 94 | static int ubsec_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)); |
5572f482 | 95 | static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, |
40720ce3 | 96 | const BIGNUM *m, BN_CTX *ctx); |
5572f482 | 97 | static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, |
40720ce3 MC |
98 | const BIGNUM *q, const BIGNUM *dp, |
99 | const BIGNUM *dq, const BIGNUM *qinv, | |
100 | BN_CTX *ctx); | |
101 | # ifndef OPENSSL_NO_RSA | |
102 | static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, | |
103 | BN_CTX *ctx); | |
104 | # endif | |
5572f482 | 105 | static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, |
40720ce3 MC |
106 | const BIGNUM *m, BN_CTX *ctx, |
107 | BN_MONT_CTX *m_ctx); | |
108 | # ifndef OPENSSL_NO_DSA | |
109 | # ifdef NOT_USED | |
5572f482 | 110 | static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1, |
40720ce3 MC |
111 | BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m, |
112 | BN_CTX *ctx, BN_MONT_CTX *in_mont); | |
5572f482 | 113 | static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a, |
40720ce3 MC |
114 | const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, |
115 | BN_MONT_CTX *m_ctx); | |
116 | # endif | |
117 | static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, | |
118 | DSA *dsa); | |
5572f482 | 119 | static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len, |
40720ce3 MC |
120 | DSA_SIG *sig, DSA *dsa); |
121 | # endif | |
122 | # ifndef OPENSSL_NO_DH | |
5572f482 | 123 | static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a, |
40720ce3 MC |
124 | const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, |
125 | BN_MONT_CTX *m_ctx); | |
126 | static int ubsec_dh_compute_key(unsigned char *key, const BIGNUM *pub_key, | |
127 | DH *dh); | |
5572f482 | 128 | static int ubsec_dh_generate_key(DH *dh); |
40720ce3 | 129 | # endif |
5572f482 | 130 | |
40720ce3 | 131 | # ifdef NOT_USED |
5572f482 RL |
132 | static int ubsec_rand_bytes(unsigned char *buf, int num); |
133 | static int ubsec_rand_status(void); | |
40720ce3 | 134 | # endif |
5572f482 | 135 | |
40720ce3 | 136 | # define UBSEC_CMD_SO_PATH ENGINE_CMD_BASE |
5572f482 | 137 | static const ENGINE_CMD_DEFN ubsec_cmd_defns[] = { |
40720ce3 MC |
138 | {UBSEC_CMD_SO_PATH, |
139 | "SO_PATH", | |
140 | "Specifies the path to the 'ubsec' shared library", | |
141 | ENGINE_CMD_FLAG_STRING}, | |
142 | {0, NULL, NULL, 0} | |
143 | }; | |
144 | ||
145 | # ifndef OPENSSL_NO_RSA | |
5572f482 | 146 | /* Our internal RSA_METHOD that we provide pointers to */ |
40720ce3 MC |
147 | static RSA_METHOD ubsec_rsa = { |
148 | "UBSEC RSA method", | |
149 | NULL, | |
150 | NULL, | |
151 | NULL, | |
152 | NULL, | |
153 | ubsec_rsa_mod_exp, | |
154 | ubsec_mod_exp_mont, | |
155 | NULL, | |
156 | NULL, | |
157 | 0, | |
158 | NULL, | |
159 | NULL, | |
160 | NULL, | |
161 | NULL | |
162 | }; | |
163 | # endif | |
164 | ||
165 | # ifndef OPENSSL_NO_DSA | |
5572f482 | 166 | /* Our internal DSA_METHOD that we provide pointers to */ |
40720ce3 MC |
167 | static DSA_METHOD ubsec_dsa = { |
168 | "UBSEC DSA method", | |
169 | ubsec_dsa_do_sign, /* dsa_do_sign */ | |
170 | NULL, /* dsa_sign_setup */ | |
171 | ubsec_dsa_verify, /* dsa_do_verify */ | |
172 | NULL, /* ubsec_dsa_mod_exp *//* dsa_mod_exp */ | |
173 | NULL, /* ubsec_mod_exp_dsa *//* bn_mod_exp */ | |
174 | NULL, /* init */ | |
175 | NULL, /* finish */ | |
176 | 0, /* flags */ | |
177 | NULL, /* app_data */ | |
178 | NULL, /* dsa_paramgen */ | |
179 | NULL /* dsa_keygen */ | |
180 | }; | |
181 | # endif | |
182 | ||
183 | # ifndef OPENSSL_NO_DH | |
5572f482 | 184 | /* Our internal DH_METHOD that we provide pointers to */ |
40720ce3 MC |
185 | static DH_METHOD ubsec_dh = { |
186 | "UBSEC DH method", | |
187 | ubsec_dh_generate_key, | |
188 | ubsec_dh_compute_key, | |
189 | ubsec_mod_exp_dh, | |
190 | NULL, | |
191 | NULL, | |
192 | 0, | |
193 | NULL, | |
194 | NULL | |
195 | }; | |
196 | # endif | |
5572f482 RL |
197 | |
198 | /* Constants used when creating the ENGINE */ | |
199 | static const char *engine_ubsec_id = "ubsec"; | |
200 | static const char *engine_ubsec_name = "UBSEC hardware engine support"; | |
201 | ||
40720ce3 MC |
202 | /* |
203 | * This internal function is used by ENGINE_ubsec() and possibly by the | |
204 | * "dynamic" ENGINE support too | |
205 | */ | |
5572f482 | 206 | static int bind_helper(ENGINE *e) |
40720ce3 MC |
207 | { |
208 | # ifndef OPENSSL_NO_RSA | |
209 | const RSA_METHOD *meth1; | |
210 | # endif | |
211 | # ifndef OPENSSL_NO_DH | |
212 | # ifndef HAVE_UBSEC_DH | |
213 | const DH_METHOD *meth3; | |
214 | # endif /* HAVE_UBSEC_DH */ | |
215 | # endif | |
216 | if (!ENGINE_set_id(e, engine_ubsec_id) || | |
217 | !ENGINE_set_name(e, engine_ubsec_name) || | |
218 | # ifndef OPENSSL_NO_RSA | |
219 | !ENGINE_set_RSA(e, &ubsec_rsa) || | |
220 | # endif | |
221 | # ifndef OPENSSL_NO_DSA | |
222 | !ENGINE_set_DSA(e, &ubsec_dsa) || | |
223 | # endif | |
224 | # ifndef OPENSSL_NO_DH | |
225 | !ENGINE_set_DH(e, &ubsec_dh) || | |
226 | # endif | |
227 | !ENGINE_set_destroy_function(e, ubsec_destroy) || | |
228 | !ENGINE_set_init_function(e, ubsec_init) || | |
229 | !ENGINE_set_finish_function(e, ubsec_finish) || | |
230 | !ENGINE_set_ctrl_function(e, ubsec_ctrl) || | |
231 | !ENGINE_set_cmd_defns(e, ubsec_cmd_defns)) | |
232 | return 0; | |
233 | ||
234 | # ifndef OPENSSL_NO_RSA | |
235 | /* | |
236 | * We know that the "PKCS1_SSLeay()" functions hook properly to the | |
237 | * Broadcom-specific mod_exp and mod_exp_crt so we use those functions. | |
238 | * NB: We don't use ENGINE_openssl() or anything "more generic" because | |
239 | * something like the RSAref code may not hook properly, and if you own | |
240 | * one of these cards then you have the right to do RSA operations on it | |
241 | * anyway! | |
242 | */ | |
243 | meth1 = RSA_PKCS1_SSLeay(); | |
244 | ubsec_rsa.rsa_pub_enc = meth1->rsa_pub_enc; | |
245 | ubsec_rsa.rsa_pub_dec = meth1->rsa_pub_dec; | |
246 | ubsec_rsa.rsa_priv_enc = meth1->rsa_priv_enc; | |
247 | ubsec_rsa.rsa_priv_dec = meth1->rsa_priv_dec; | |
248 | # endif | |
249 | ||
250 | # ifndef OPENSSL_NO_DH | |
251 | # ifndef HAVE_UBSEC_DH | |
252 | /* Much the same for Diffie-Hellman */ | |
253 | meth3 = DH_OpenSSL(); | |
254 | ubsec_dh.generate_key = meth3->generate_key; | |
255 | ubsec_dh.compute_key = meth3->compute_key; | |
256 | # endif /* HAVE_UBSEC_DH */ | |
257 | # endif | |
258 | ||
259 | /* Ensure the ubsec error handling is set up */ | |
260 | ERR_load_UBSEC_strings(); | |
261 | return 1; | |
262 | } | |
5572f482 | 263 | |
40720ce3 | 264 | # ifdef OPENSSL_NO_DYNAMIC_ENGINE |
5572f482 | 265 | static ENGINE *engine_ubsec(void) |
40720ce3 MC |
266 | { |
267 | ENGINE *ret = ENGINE_new(); | |
268 | if (!ret) | |
269 | return NULL; | |
270 | if (!bind_helper(ret)) { | |
271 | ENGINE_free(ret); | |
272 | return NULL; | |
273 | } | |
274 | return ret; | |
275 | } | |
5572f482 RL |
276 | |
277 | void ENGINE_load_ubsec(void) | |
40720ce3 MC |
278 | { |
279 | /* Copied from eng_[openssl|dyn].c */ | |
280 | ENGINE *toadd = engine_ubsec(); | |
281 | if (!toadd) | |
282 | return; | |
283 | ENGINE_add(toadd); | |
284 | ENGINE_free(toadd); | |
285 | ERR_clear_error(); | |
286 | } | |
287 | # endif | |
5572f482 | 288 | |
40720ce3 MC |
289 | /* |
290 | * This is a process-global DSO handle used for loading and unloading the | |
291 | * UBSEC library. NB: This is only set (or unset) during an init() or | |
292 | * finish() call (reference counts permitting) and they're operating with | |
293 | * global locks, so this should be thread-safe implicitly. | |
294 | */ | |
5572f482 RL |
295 | |
296 | static DSO *ubsec_dso = NULL; | |
297 | ||
40720ce3 MC |
298 | /* |
299 | * These are the function pointers that are (un)set when the library has | |
300 | * successfully (un)loaded. | |
301 | */ | |
5572f482 RL |
302 | |
303 | static t_UBSEC_ubsec_bytes_to_bits *p_UBSEC_ubsec_bytes_to_bits = NULL; | |
304 | static t_UBSEC_ubsec_bits_to_bytes *p_UBSEC_ubsec_bits_to_bytes = NULL; | |
305 | static t_UBSEC_ubsec_open *p_UBSEC_ubsec_open = NULL; | |
306 | static t_UBSEC_ubsec_close *p_UBSEC_ubsec_close = NULL; | |
40720ce3 MC |
307 | # ifndef OPENSSL_NO_DH |
308 | static t_UBSEC_diffie_hellman_generate_ioctl | |
309 | * p_UBSEC_diffie_hellman_generate_ioctl = NULL; | |
310 | static t_UBSEC_diffie_hellman_agree_ioctl *p_UBSEC_diffie_hellman_agree_ioctl | |
311 | = NULL; | |
312 | # endif | |
5572f482 RL |
313 | /* #ifndef OPENSSL_NO_RSA */ |
314 | static t_UBSEC_rsa_mod_exp_ioctl *p_UBSEC_rsa_mod_exp_ioctl = NULL; | |
315 | static t_UBSEC_rsa_mod_exp_crt_ioctl *p_UBSEC_rsa_mod_exp_crt_ioctl = NULL; | |
316 | /* #endif */ | |
40720ce3 | 317 | # ifndef OPENSSL_NO_DSA |
5572f482 RL |
318 | static t_UBSEC_dsa_sign_ioctl *p_UBSEC_dsa_sign_ioctl = NULL; |
319 | static t_UBSEC_dsa_verify_ioctl *p_UBSEC_dsa_verify_ioctl = NULL; | |
40720ce3 | 320 | # endif |
5572f482 RL |
321 | static t_UBSEC_math_accelerate_ioctl *p_UBSEC_math_accelerate_ioctl = NULL; |
322 | static t_UBSEC_rng_ioctl *p_UBSEC_rng_ioctl = NULL; | |
323 | static t_UBSEC_max_key_len_ioctl *p_UBSEC_max_key_len_ioctl = NULL; | |
324 | ||
325 | static int max_key_len = 1024; /* ??? */ | |
326 | ||
40720ce3 | 327 | /* |
5572f482 | 328 | * These are the static string constants for the DSO file name and the function |
40720ce3 | 329 | * symbol names to bind to. |
5572f482 RL |
330 | */ |
331 | ||
332 | static const char *UBSEC_LIBNAME = NULL; | |
333 | static const char *get_UBSEC_LIBNAME(void) | |
40720ce3 MC |
334 | { |
335 | if (UBSEC_LIBNAME) | |
336 | return UBSEC_LIBNAME; | |
337 | return "ubsec"; | |
338 | } | |
339 | ||
5572f482 | 340 | static void free_UBSEC_LIBNAME(void) |
40720ce3 MC |
341 | { |
342 | if (UBSEC_LIBNAME) | |
343 | OPENSSL_free((void *)UBSEC_LIBNAME); | |
344 | UBSEC_LIBNAME = NULL; | |
345 | } | |
346 | ||
5572f482 | 347 | static long set_UBSEC_LIBNAME(const char *name) |
40720ce3 MC |
348 | { |
349 | free_UBSEC_LIBNAME(); | |
350 | return (((UBSEC_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0); | |
351 | } | |
352 | ||
5572f482 RL |
353 | static const char *UBSEC_F1 = "ubsec_bytes_to_bits"; |
354 | static const char *UBSEC_F2 = "ubsec_bits_to_bytes"; | |
355 | static const char *UBSEC_F3 = "ubsec_open"; | |
356 | static const char *UBSEC_F4 = "ubsec_close"; | |
40720ce3 | 357 | # ifndef OPENSSL_NO_DH |
5572f482 RL |
358 | static const char *UBSEC_F5 = "diffie_hellman_generate_ioctl"; |
359 | static const char *UBSEC_F6 = "diffie_hellman_agree_ioctl"; | |
40720ce3 | 360 | # endif |
5572f482 RL |
361 | /* #ifndef OPENSSL_NO_RSA */ |
362 | static const char *UBSEC_F7 = "rsa_mod_exp_ioctl"; | |
363 | static const char *UBSEC_F8 = "rsa_mod_exp_crt_ioctl"; | |
364 | /* #endif */ | |
40720ce3 | 365 | # ifndef OPENSSL_NO_DSA |
5572f482 RL |
366 | static const char *UBSEC_F9 = "dsa_sign_ioctl"; |
367 | static const char *UBSEC_F10 = "dsa_verify_ioctl"; | |
40720ce3 | 368 | # endif |
5572f482 RL |
369 | static const char *UBSEC_F11 = "math_accelerate_ioctl"; |
370 | static const char *UBSEC_F12 = "rng_ioctl"; | |
371 | static const char *UBSEC_F13 = "ubsec_max_key_len_ioctl"; | |
372 | ||
373 | /* Destructor (complements the "ENGINE_ubsec()" constructor) */ | |
374 | static int ubsec_destroy(ENGINE *e) | |
40720ce3 MC |
375 | { |
376 | free_UBSEC_LIBNAME(); | |
377 | ERR_unload_UBSEC_strings(); | |
378 | return 1; | |
379 | } | |
5572f482 RL |
380 | |
381 | /* (de)initialisation functions. */ | |
382 | static int ubsec_init(ENGINE *e) | |
40720ce3 MC |
383 | { |
384 | t_UBSEC_ubsec_bytes_to_bits *p1; | |
385 | t_UBSEC_ubsec_bits_to_bytes *p2; | |
386 | t_UBSEC_ubsec_open *p3; | |
387 | t_UBSEC_ubsec_close *p4; | |
388 | # ifndef OPENSSL_NO_DH | |
389 | t_UBSEC_diffie_hellman_generate_ioctl *p5; | |
390 | t_UBSEC_diffie_hellman_agree_ioctl *p6; | |
391 | # endif | |
5572f482 | 392 | /* #ifndef OPENSSL_NO_RSA */ |
40720ce3 MC |
393 | t_UBSEC_rsa_mod_exp_ioctl *p7; |
394 | t_UBSEC_rsa_mod_exp_crt_ioctl *p8; | |
5572f482 | 395 | /* #endif */ |
40720ce3 MC |
396 | # ifndef OPENSSL_NO_DSA |
397 | t_UBSEC_dsa_sign_ioctl *p9; | |
398 | t_UBSEC_dsa_verify_ioctl *p10; | |
399 | # endif | |
400 | t_UBSEC_math_accelerate_ioctl *p11; | |
401 | t_UBSEC_rng_ioctl *p12; | |
402 | t_UBSEC_max_key_len_ioctl *p13; | |
403 | int fd = 0; | |
404 | ||
405 | if (ubsec_dso != NULL) { | |
406 | UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_ALREADY_LOADED); | |
407 | goto err; | |
408 | } | |
409 | /* | |
410 | * Attempt to load libubsec.so/ubsec.dll/whatever. | |
411 | */ | |
412 | ubsec_dso = DSO_load(NULL, get_UBSEC_LIBNAME(), NULL, 0); | |
413 | if (ubsec_dso == NULL) { | |
414 | UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_DSO_FAILURE); | |
415 | goto err; | |
416 | } | |
417 | ||
418 | if (!(p1 = (t_UBSEC_ubsec_bytes_to_bits *) | |
419 | DSO_bind_func(ubsec_dso, UBSEC_F1)) | |
420 | || !(p2 = (t_UBSEC_ubsec_bits_to_bytes *) | |
421 | DSO_bind_func(ubsec_dso, UBSEC_F2)) | |
422 | || !(p3 = (t_UBSEC_ubsec_open *) | |
423 | DSO_bind_func(ubsec_dso, UBSEC_F3)) | |
424 | || !(p4 = (t_UBSEC_ubsec_close *) | |
425 | DSO_bind_func(ubsec_dso, UBSEC_F4)) | |
426 | # ifndef OPENSSL_NO_DH | |
427 | || !(p5 = (t_UBSEC_diffie_hellman_generate_ioctl *) | |
428 | DSO_bind_func(ubsec_dso, UBSEC_F5)) | |
429 | || !(p6 = (t_UBSEC_diffie_hellman_agree_ioctl *) | |
430 | DSO_bind_func(ubsec_dso, UBSEC_F6)) | |
431 | # endif | |
5572f482 | 432 | /* #ifndef OPENSSL_NO_RSA */ |
40720ce3 MC |
433 | || !(p7 = (t_UBSEC_rsa_mod_exp_ioctl *) |
434 | DSO_bind_func(ubsec_dso, UBSEC_F7)) | |
435 | || !(p8 = (t_UBSEC_rsa_mod_exp_crt_ioctl *) | |
436 | DSO_bind_func(ubsec_dso, UBSEC_F8)) | |
5572f482 | 437 | /* #endif */ |
40720ce3 MC |
438 | # ifndef OPENSSL_NO_DSA |
439 | || !(p9 = (t_UBSEC_dsa_sign_ioctl *) | |
440 | DSO_bind_func(ubsec_dso, UBSEC_F9)) | |
441 | || !(p10 = (t_UBSEC_dsa_verify_ioctl *) | |
442 | DSO_bind_func(ubsec_dso, UBSEC_F10)) | |
443 | # endif | |
444 | || !(p11 = (t_UBSEC_math_accelerate_ioctl *) | |
445 | DSO_bind_func(ubsec_dso, UBSEC_F11)) | |
446 | || !(p12 = (t_UBSEC_rng_ioctl *) | |
447 | DSO_bind_func(ubsec_dso, UBSEC_F12)) | |
448 | || !(p13 = (t_UBSEC_max_key_len_ioctl *) | |
449 | DSO_bind_func(ubsec_dso, UBSEC_F13))) { | |
450 | UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_DSO_FAILURE); | |
451 | goto err; | |
452 | } | |
453 | ||
454 | /* Copy the pointers */ | |
455 | p_UBSEC_ubsec_bytes_to_bits = p1; | |
456 | p_UBSEC_ubsec_bits_to_bytes = p2; | |
457 | p_UBSEC_ubsec_open = p3; | |
458 | p_UBSEC_ubsec_close = p4; | |
459 | # ifndef OPENSSL_NO_DH | |
460 | p_UBSEC_diffie_hellman_generate_ioctl = p5; | |
461 | p_UBSEC_diffie_hellman_agree_ioctl = p6; | |
462 | # endif | |
463 | # ifndef OPENSSL_NO_RSA | |
464 | p_UBSEC_rsa_mod_exp_ioctl = p7; | |
465 | p_UBSEC_rsa_mod_exp_crt_ioctl = p8; | |
466 | # endif | |
467 | # ifndef OPENSSL_NO_DSA | |
468 | p_UBSEC_dsa_sign_ioctl = p9; | |
469 | p_UBSEC_dsa_verify_ioctl = p10; | |
470 | # endif | |
471 | p_UBSEC_math_accelerate_ioctl = p11; | |
472 | p_UBSEC_rng_ioctl = p12; | |
473 | p_UBSEC_max_key_len_ioctl = p13; | |
474 | ||
475 | /* Perform an open to see if there's actually any unit running. */ | |
476 | if (((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) > 0) | |
477 | && (p_UBSEC_max_key_len_ioctl(fd, &max_key_len) == 0)) { | |
478 | p_UBSEC_ubsec_close(fd); | |
479 | return 1; | |
480 | } else { | |
481 | UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE); | |
482 | } | |
483 | ||
484 | err: | |
485 | if (ubsec_dso) | |
486 | DSO_free(ubsec_dso); | |
487 | ubsec_dso = NULL; | |
488 | p_UBSEC_ubsec_bytes_to_bits = NULL; | |
489 | p_UBSEC_ubsec_bits_to_bytes = NULL; | |
490 | p_UBSEC_ubsec_open = NULL; | |
491 | p_UBSEC_ubsec_close = NULL; | |
492 | # ifndef OPENSSL_NO_DH | |
493 | p_UBSEC_diffie_hellman_generate_ioctl = NULL; | |
494 | p_UBSEC_diffie_hellman_agree_ioctl = NULL; | |
495 | # endif | |
496 | # ifndef OPENSSL_NO_RSA | |
497 | p_UBSEC_rsa_mod_exp_ioctl = NULL; | |
498 | p_UBSEC_rsa_mod_exp_crt_ioctl = NULL; | |
499 | # endif | |
500 | # ifndef OPENSSL_NO_DSA | |
501 | p_UBSEC_dsa_sign_ioctl = NULL; | |
502 | p_UBSEC_dsa_verify_ioctl = NULL; | |
503 | # endif | |
504 | p_UBSEC_math_accelerate_ioctl = NULL; | |
505 | p_UBSEC_rng_ioctl = NULL; | |
506 | p_UBSEC_max_key_len_ioctl = NULL; | |
507 | ||
508 | return 0; | |
509 | } | |
5572f482 RL |
510 | |
511 | static int ubsec_finish(ENGINE *e) | |
40720ce3 MC |
512 | { |
513 | free_UBSEC_LIBNAME(); | |
514 | if (ubsec_dso == NULL) { | |
515 | UBSECerr(UBSEC_F_UBSEC_FINISH, UBSEC_R_NOT_LOADED); | |
516 | return 0; | |
517 | } | |
518 | if (!DSO_free(ubsec_dso)) { | |
519 | UBSECerr(UBSEC_F_UBSEC_FINISH, UBSEC_R_DSO_FAILURE); | |
520 | return 0; | |
521 | } | |
522 | ubsec_dso = NULL; | |
523 | p_UBSEC_ubsec_bytes_to_bits = NULL; | |
524 | p_UBSEC_ubsec_bits_to_bytes = NULL; | |
525 | p_UBSEC_ubsec_open = NULL; | |
526 | p_UBSEC_ubsec_close = NULL; | |
527 | # ifndef OPENSSL_NO_DH | |
528 | p_UBSEC_diffie_hellman_generate_ioctl = NULL; | |
529 | p_UBSEC_diffie_hellman_agree_ioctl = NULL; | |
530 | # endif | |
531 | # ifndef OPENSSL_NO_RSA | |
532 | p_UBSEC_rsa_mod_exp_ioctl = NULL; | |
533 | p_UBSEC_rsa_mod_exp_crt_ioctl = NULL; | |
534 | # endif | |
535 | # ifndef OPENSSL_NO_DSA | |
536 | p_UBSEC_dsa_sign_ioctl = NULL; | |
537 | p_UBSEC_dsa_verify_ioctl = NULL; | |
538 | # endif | |
539 | p_UBSEC_math_accelerate_ioctl = NULL; | |
540 | p_UBSEC_rng_ioctl = NULL; | |
541 | p_UBSEC_max_key_len_ioctl = NULL; | |
542 | return 1; | |
543 | } | |
544 | ||
545 | static int ubsec_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)) | |
546 | { | |
547 | int initialised = ((ubsec_dso == NULL) ? 0 : 1); | |
548 | switch (cmd) { | |
549 | case UBSEC_CMD_SO_PATH: | |
550 | if (p == NULL) { | |
551 | UBSECerr(UBSEC_F_UBSEC_CTRL, ERR_R_PASSED_NULL_PARAMETER); | |
552 | return 0; | |
553 | } | |
554 | if (initialised) { | |
555 | UBSECerr(UBSEC_F_UBSEC_CTRL, UBSEC_R_ALREADY_LOADED); | |
556 | return 0; | |
557 | } | |
558 | return set_UBSEC_LIBNAME((const char *)p); | |
559 | default: | |
560 | break; | |
561 | } | |
562 | UBSECerr(UBSEC_F_UBSEC_CTRL, UBSEC_R_CTRL_COMMAND_NOT_IMPLEMENTED); | |
563 | return 0; | |
564 | } | |
5572f482 RL |
565 | |
566 | static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, | |
40720ce3 MC |
567 | const BIGNUM *m, BN_CTX *ctx) |
568 | { | |
569 | int y_len = 0; | |
570 | int fd; | |
571 | ||
572 | if (ubsec_dso == NULL) { | |
573 | UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_NOT_LOADED); | |
574 | return 0; | |
575 | } | |
576 | ||
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); | |
582 | } | |
583 | ||
584 | if (!bn_wexpand(r, m->top)) { | |
585 | UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_BN_EXPAND_FAIL); | |
586 | return 0; | |
587 | } | |
588 | ||
589 | if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) { | |
590 | fd = 0; | |
591 | UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_UNIT_FAILURE); | |
592 | return BN_mod_exp(r, a, p, m, ctx); | |
593 | } | |
594 | ||
595 | if (p_UBSEC_rsa_mod_exp_ioctl(fd, (unsigned char *)a->d, BN_num_bits(a), | |
596 | (unsigned char *)m->d, BN_num_bits(m), | |
597 | (unsigned char *)p->d, BN_num_bits(p), | |
598 | (unsigned char *)r->d, &y_len) != 0) { | |
599 | UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_REQUEST_FAILED); | |
600 | p_UBSEC_ubsec_close(fd); | |
5572f482 | 601 | |
40720ce3 MC |
602 | return BN_mod_exp(r, a, p, m, ctx); |
603 | } | |
604 | ||
605 | p_UBSEC_ubsec_close(fd); | |
606 | ||
607 | r->top = (BN_num_bits(m) + BN_BITS2 - 1) / BN_BITS2; | |
608 | return 1; | |
609 | } | |
610 | ||
611 | # ifndef OPENSSL_NO_RSA | |
612 | static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, | |
613 | BN_CTX *ctx) | |
614 | { | |
615 | int to_return = 0; | |
616 | ||
617 | if (!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp) { | |
618 | UBSECerr(UBSEC_F_UBSEC_RSA_MOD_EXP, UBSEC_R_MISSING_KEY_COMPONENTS); | |
619 | goto err; | |
620 | } | |
621 | ||
622 | to_return = ubsec_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1, | |
623 | rsa->dmq1, rsa->iqmp, ctx); | |
624 | if (to_return == FAIL_TO_SOFTWARE) { | |
625 | /* | |
626 | * Do in software as hardware failed. | |
627 | */ | |
628 | const RSA_METHOD *meth = RSA_PKCS1_SSLeay(); | |
629 | to_return = (*meth->rsa_mod_exp) (r0, I, rsa, ctx); | |
630 | } | |
631 | err: | |
632 | return to_return; | |
633 | } | |
634 | # endif | |
5572f482 RL |
635 | |
636 | static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, | |
40720ce3 MC |
637 | const BIGNUM *q, const BIGNUM *dp, |
638 | const BIGNUM *dq, const BIGNUM *qinv, | |
639 | BN_CTX *ctx) | |
640 | { | |
641 | int y_len, fd; | |
642 | ||
643 | y_len = BN_num_bits(p) + BN_num_bits(q); | |
644 | ||
645 | /* Check if hardware can't handle this argument. */ | |
646 | if (y_len > max_key_len) { | |
647 | UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, | |
648 | UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL); | |
649 | return FAIL_TO_SOFTWARE; | |
650 | } | |
651 | ||
652 | if (!bn_wexpand(r, p->top + q->top + 1)) { | |
653 | UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_BN_EXPAND_FAIL); | |
654 | return 0; | |
655 | } | |
656 | ||
657 | if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) { | |
658 | fd = 0; | |
659 | UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_UNIT_FAILURE); | |
660 | return FAIL_TO_SOFTWARE; | |
661 | } | |
662 | ||
663 | if (p_UBSEC_rsa_mod_exp_crt_ioctl(fd, | |
664 | (unsigned char *)a->d, BN_num_bits(a), | |
665 | (unsigned char *)qinv->d, | |
666 | BN_num_bits(qinv), | |
667 | (unsigned char *)dp->d, BN_num_bits(dp), | |
668 | (unsigned char *)p->d, BN_num_bits(p), | |
669 | (unsigned char *)dq->d, BN_num_bits(dq), | |
670 | (unsigned char *)q->d, BN_num_bits(q), | |
671 | (unsigned char *)r->d, &y_len) != 0) { | |
672 | UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_REQUEST_FAILED); | |
673 | p_UBSEC_ubsec_close(fd); | |
674 | return FAIL_TO_SOFTWARE; | |
675 | } | |
676 | ||
677 | p_UBSEC_ubsec_close(fd); | |
678 | ||
679 | r->top = (BN_num_bits(p) + BN_num_bits(q) + BN_BITS2 - 1) / BN_BITS2; | |
680 | return 1; | |
5572f482 RL |
681 | } |
682 | ||
40720ce3 MC |
683 | # ifndef OPENSSL_NO_DSA |
684 | # ifdef NOT_USED | |
5572f482 | 685 | static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1, |
40720ce3 MC |
686 | BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m, |
687 | BN_CTX *ctx, BN_MONT_CTX *in_mont) | |
688 | { | |
689 | BIGNUM t; | |
690 | int to_return = 0; | |
691 | ||
692 | BN_init(&t); | |
693 | /* let rr = a1 ^ p1 mod m */ | |
694 | if (!ubsec_mod_exp(rr, a1, p1, m, ctx)) | |
695 | goto end; | |
696 | /* let t = a2 ^ p2 mod m */ | |
697 | if (!ubsec_mod_exp(&t, a2, p2, m, ctx)) | |
698 | goto end; | |
699 | /* let rr = rr * t mod m */ | |
700 | if (!BN_mod_mul(rr, rr, &t, m, ctx)) | |
701 | goto end; | |
702 | to_return = 1; | |
703 | end: | |
704 | BN_free(&t); | |
705 | return to_return; | |
706 | } | |
5572f482 RL |
707 | |
708 | static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a, | |
40720ce3 MC |
709 | const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, |
710 | BN_MONT_CTX *m_ctx) | |
711 | { | |
712 | return ubsec_mod_exp(r, a, p, m, ctx); | |
713 | } | |
714 | # endif | |
715 | # endif | |
5572f482 RL |
716 | |
717 | /* | |
718 | * This function is aliased to mod_exp (with the mont stuff dropped). | |
719 | */ | |
720 | static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, | |
40720ce3 MC |
721 | const BIGNUM *m, BN_CTX *ctx, |
722 | BN_MONT_CTX *m_ctx) | |
723 | { | |
724 | int ret = 0; | |
725 | ||
726 | # ifndef OPENSSL_NO_RSA | |
727 | /* Do in software if the key is too large for the hardware. */ | |
728 | if (BN_num_bits(m) > max_key_len) { | |
729 | const RSA_METHOD *meth = RSA_PKCS1_SSLeay(); | |
730 | ret = (*meth->bn_mod_exp) (r, a, p, m, ctx, m_ctx); | |
731 | } else | |
732 | # endif | |
733 | { | |
734 | ret = ubsec_mod_exp(r, a, p, m, ctx); | |
735 | } | |
736 | ||
737 | return ret; | |
738 | } | |
5572f482 | 739 | |
40720ce3 | 740 | # ifndef OPENSSL_NO_DH |
5572f482 RL |
741 | /* This function is aliased to mod_exp (with the dh and mont dropped). */ |
742 | static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a, | |
40720ce3 MC |
743 | const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, |
744 | BN_MONT_CTX *m_ctx) | |
745 | { | |
746 | return ubsec_mod_exp(r, a, p, m, ctx); | |
747 | } | |
748 | # endif | |
749 | ||
750 | # ifndef OPENSSL_NO_DSA | |
751 | static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, | |
752 | DSA *dsa) | |
753 | { | |
754 | DSA_SIG *to_return = NULL; | |
755 | int s_len = 160, r_len = 160, d_len, fd; | |
756 | BIGNUM m, *r = NULL, *s = NULL; | |
757 | ||
758 | BN_init(&m); | |
759 | ||
760 | s = BN_new(); | |
761 | r = BN_new(); | |
762 | if ((s == NULL) || (r == NULL)) | |
763 | goto err; | |
764 | ||
765 | d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dlen); | |
766 | ||
767 | if (!bn_wexpand(r, (160 + BN_BITS2 - 1) / BN_BITS2) || | |
768 | (!bn_wexpand(s, (160 + BN_BITS2 - 1) / BN_BITS2))) { | |
769 | UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL); | |
770 | goto err; | |
771 | } | |
772 | ||
773 | if (BN_bin2bn(dgst, dlen, &m) == NULL) { | |
774 | UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL); | |
775 | goto err; | |
776 | } | |
777 | ||
778 | if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) { | |
779 | const DSA_METHOD *meth; | |
780 | fd = 0; | |
781 | UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_UNIT_FAILURE); | |
782 | meth = DSA_OpenSSL(); | |
783 | to_return = meth->dsa_do_sign(dgst, dlen, dsa); | |
784 | goto err; | |
785 | } | |
786 | ||
787 | if (p_UBSEC_dsa_sign_ioctl(fd, | |
788 | /* compute hash before signing */ | |
789 | 0, (unsigned char *)dgst, d_len, NULL, | |
790 | /* compute random value */ | |
791 | 0, | |
792 | (unsigned char *)dsa->p->d, | |
793 | BN_num_bits(dsa->p), | |
794 | (unsigned char *)dsa->q->d, | |
795 | BN_num_bits(dsa->q), | |
796 | (unsigned char *)dsa->g->d, | |
797 | BN_num_bits(dsa->g), | |
798 | (unsigned char *)dsa->priv_key->d, | |
799 | BN_num_bits(dsa->priv_key), | |
800 | (unsigned char *)r->d, &r_len, | |
801 | (unsigned char *)s->d, &s_len) != 0) { | |
802 | const DSA_METHOD *meth; | |
803 | ||
804 | UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_REQUEST_FAILED); | |
805 | p_UBSEC_ubsec_close(fd); | |
806 | meth = DSA_OpenSSL(); | |
807 | to_return = meth->dsa_do_sign(dgst, dlen, dsa); | |
808 | ||
809 | goto err; | |
810 | } | |
811 | ||
812 | p_UBSEC_ubsec_close(fd); | |
813 | ||
814 | r->top = (160 + BN_BITS2 - 1) / BN_BITS2; | |
815 | s->top = (160 + BN_BITS2 - 1) / BN_BITS2; | |
816 | ||
817 | to_return = DSA_SIG_new(); | |
818 | if (to_return == NULL) { | |
819 | UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL); | |
820 | goto err; | |
821 | } | |
822 | ||
823 | to_return->r = r; | |
824 | to_return->s = s; | |
825 | ||
826 | err: | |
827 | if (!to_return) { | |
828 | if (r) | |
829 | BN_free(r); | |
830 | if (s) | |
831 | BN_free(s); | |
832 | } | |
833 | BN_clear_free(&m); | |
834 | return to_return; | |
5572f482 RL |
835 | } |
836 | ||
837 | static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len, | |
40720ce3 MC |
838 | DSA_SIG *sig, DSA *dsa) |
839 | { | |
840 | int v_len, d_len; | |
841 | int to_return = 0; | |
842 | int fd; | |
843 | BIGNUM v, *pv = &v; | |
844 | ||
845 | BN_init(&v); | |
846 | ||
847 | if (!bn_wexpand(pv, dsa->p->top)) { | |
848 | UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_BN_EXPAND_FAIL); | |
849 | goto err; | |
850 | } | |
851 | ||
852 | v_len = BN_num_bits(dsa->p); | |
853 | ||
854 | d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dgst_len); | |
855 | ||
856 | if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) { | |
857 | const DSA_METHOD *meth; | |
858 | fd = 0; | |
859 | UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_UNIT_FAILURE); | |
860 | meth = DSA_OpenSSL(); | |
861 | to_return = meth->dsa_do_verify(dgst, dgst_len, sig, dsa); | |
862 | goto err; | |
863 | } | |
864 | ||
865 | if (p_UBSEC_dsa_verify_ioctl(fd, 0, /* compute hash before signing */ | |
866 | (unsigned char *)dgst, d_len, | |
867 | (unsigned char *)dsa->p->d, | |
868 | BN_num_bits(dsa->p), | |
869 | (unsigned char *)dsa->q->d, | |
870 | BN_num_bits(dsa->q), | |
871 | (unsigned char *)dsa->g->d, | |
872 | BN_num_bits(dsa->g), | |
873 | (unsigned char *)dsa->pub_key->d, | |
874 | BN_num_bits(dsa->pub_key), | |
875 | (unsigned char *)sig->r->d, | |
876 | BN_num_bits(sig->r), | |
877 | (unsigned char *)sig->s->d, | |
878 | BN_num_bits(sig->s), (unsigned char *)v.d, | |
879 | &v_len) != 0) { | |
880 | const DSA_METHOD *meth; | |
881 | UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_REQUEST_FAILED); | |
882 | p_UBSEC_ubsec_close(fd); | |
5572f482 | 883 | |
40720ce3 MC |
884 | meth = DSA_OpenSSL(); |
885 | to_return = meth->dsa_do_verify(dgst, dgst_len, sig, dsa); | |
5572f482 | 886 | |
40720ce3 MC |
887 | goto err; |
888 | } | |
5572f482 | 889 | |
40720ce3 | 890 | p_UBSEC_ubsec_close(fd); |
5572f482 | 891 | |
40720ce3 MC |
892 | to_return = 1; |
893 | err: | |
894 | BN_clear_free(&v); | |
895 | return to_return; | |
896 | } | |
897 | # endif | |
898 | ||
899 | # ifndef OPENSSL_NO_DH | |
900 | static int ubsec_dh_compute_key(unsigned char *key, const BIGNUM *pub_key, | |
901 | DH *dh) | |
902 | { | |
903 | int ret = -1, k_len, fd; | |
904 | ||
905 | k_len = BN_num_bits(dh->p); | |
906 | ||
907 | if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) { | |
908 | const DH_METHOD *meth; | |
909 | UBSECerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_UNIT_FAILURE); | |
910 | meth = DH_OpenSSL(); | |
911 | ret = meth->compute_key(key, pub_key, dh); | |
912 | goto err; | |
913 | } | |
914 | ||
915 | if (p_UBSEC_diffie_hellman_agree_ioctl(fd, | |
916 | (unsigned char *)dh->priv_key->d, | |
917 | BN_num_bits(dh->priv_key), | |
918 | (unsigned char *)pub_key->d, | |
919 | BN_num_bits(pub_key), | |
920 | (unsigned char *)dh->p->d, | |
921 | BN_num_bits(dh->p), key, | |
922 | &k_len) != 0) { | |
923 | /* Hardware's a no go, failover to software */ | |
924 | const DH_METHOD *meth; | |
925 | UBSECerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_REQUEST_FAILED); | |
926 | p_UBSEC_ubsec_close(fd); | |
5572f482 | 927 | |
40720ce3 MC |
928 | meth = DH_OpenSSL(); |
929 | ret = meth->compute_key(key, pub_key, dh); | |
5572f482 | 930 | |
40720ce3 MC |
931 | goto err; |
932 | } | |
5572f482 | 933 | |
40720ce3 | 934 | p_UBSEC_ubsec_close(fd); |
5572f482 | 935 | |
40720ce3 MC |
936 | ret = p_UBSEC_ubsec_bits_to_bytes(k_len); |
937 | err: | |
938 | return ret; | |
939 | } | |
5572f482 | 940 | |
40720ce3 MC |
941 | static int ubsec_dh_generate_key(DH *dh) |
942 | { | |
943 | int ret = 0, random_bits = 0, pub_key_len = 0, priv_key_len = 0, fd; | |
944 | BIGNUM *pub_key = NULL; | |
945 | BIGNUM *priv_key = NULL; | |
946 | ||
947 | /* | |
948 | * How many bits should Random x be? dh_key.c | |
949 | * sets the range from 0 to num_bits(modulus) ??? | |
950 | */ | |
951 | ||
952 | if (dh->priv_key == NULL) { | |
953 | priv_key = BN_new(); | |
954 | if (priv_key == NULL) | |
955 | goto err; | |
956 | priv_key_len = BN_num_bits(dh->p); | |
957 | if (bn_wexpand(priv_key, dh->p->top) == NULL) | |
958 | goto err; | |
959 | do | |
960 | if (!BN_rand_range(priv_key, dh->p)) | |
5572f482 | 961 | goto err; |
40720ce3 MC |
962 | while (BN_is_zero(priv_key)) ; |
963 | random_bits = BN_num_bits(priv_key); | |
964 | } else { | |
965 | priv_key = dh->priv_key; | |
966 | } | |
967 | ||
968 | if (dh->pub_key == NULL) { | |
969 | pub_key = BN_new(); | |
970 | pub_key_len = BN_num_bits(dh->p); | |
971 | if (bn_wexpand(pub_key, dh->p->top) == NULL) | |
972 | goto err; | |
973 | if (pub_key == NULL) | |
974 | goto err; | |
975 | } else { | |
976 | pub_key = dh->pub_key; | |
977 | } | |
978 | ||
979 | if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) { | |
980 | const DH_METHOD *meth; | |
981 | UBSECerr(UBSEC_F_UBSEC_DH_GENERATE_KEY, UBSEC_R_UNIT_FAILURE); | |
982 | meth = DH_OpenSSL(); | |
983 | ret = meth->generate_key(dh); | |
984 | goto err; | |
985 | } | |
986 | ||
987 | if (p_UBSEC_diffie_hellman_generate_ioctl(fd, | |
988 | (unsigned char *)priv_key->d, | |
989 | &priv_key_len, | |
990 | (unsigned char *)pub_key->d, | |
991 | &pub_key_len, | |
992 | (unsigned char *)dh->g->d, | |
993 | BN_num_bits(dh->g), | |
994 | (unsigned char *)dh->p->d, | |
995 | BN_num_bits(dh->p), 0, 0, | |
996 | random_bits) != 0) { | |
997 | /* Hardware's a no go, failover to software */ | |
998 | const DH_METHOD *meth; | |
999 | ||
1000 | UBSECerr(UBSEC_F_UBSEC_DH_GENERATE_KEY, UBSEC_R_REQUEST_FAILED); | |
5572f482 RL |
1001 | p_UBSEC_ubsec_close(fd); |
1002 | ||
40720ce3 MC |
1003 | meth = DH_OpenSSL(); |
1004 | ret = meth->generate_key(dh); | |
5572f482 | 1005 | |
40720ce3 MC |
1006 | goto err; |
1007 | } | |
5572f482 | 1008 | |
40720ce3 | 1009 | p_UBSEC_ubsec_close(fd); |
5572f482 | 1010 | |
40720ce3 MC |
1011 | dh->pub_key = pub_key; |
1012 | dh->pub_key->top = (pub_key_len + BN_BITS2 - 1) / BN_BITS2; | |
1013 | dh->priv_key = priv_key; | |
1014 | dh->priv_key->top = (priv_key_len + BN_BITS2 - 1) / BN_BITS2; | |
5572f482 | 1015 | |
40720ce3 MC |
1016 | ret = 1; |
1017 | err: | |
1018 | return ret; | |
1019 | } | |
1020 | # endif | |
1021 | ||
1022 | # ifdef NOT_USED | |
1023 | static int ubsec_rand_bytes(unsigned char *buf, int num) | |
1024 | { | |
1025 | int ret = 0, fd; | |
1026 | ||
1027 | if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) { | |
1028 | const RAND_METHOD *meth; | |
1029 | UBSECerr(UBSEC_F_UBSEC_RAND_BYTES, UBSEC_R_UNIT_FAILURE); | |
1030 | num = p_UBSEC_ubsec_bits_to_bytes(num); | |
1031 | meth = RAND_SSLeay(); | |
1032 | meth->seed(buf, num); | |
1033 | ret = meth->bytes(buf, num); | |
1034 | goto err; | |
1035 | } | |
1036 | ||
1037 | num *= 8; /* bytes to bits */ | |
1038 | ||
1039 | if (p_UBSEC_rng_ioctl(fd, UBSEC_RNG_DIRECT, buf, &num) != 0) { | |
1040 | /* Hardware's a no go, failover to software */ | |
1041 | const RAND_METHOD *meth; | |
1042 | ||
1043 | UBSECerr(UBSEC_F_UBSEC_RAND_BYTES, UBSEC_R_REQUEST_FAILED); | |
1044 | p_UBSEC_ubsec_close(fd); | |
5572f482 | 1045 | |
40720ce3 MC |
1046 | num = p_UBSEC_ubsec_bits_to_bytes(num); |
1047 | meth = RAND_SSLeay(); | |
1048 | meth->seed(buf, num); | |
1049 | ret = meth->bytes(buf, num); | |
5572f482 | 1050 | |
40720ce3 MC |
1051 | goto err; |
1052 | } | |
5572f482 | 1053 | |
40720ce3 | 1054 | p_UBSEC_ubsec_close(fd); |
5572f482 | 1055 | |
40720ce3 MC |
1056 | ret = 1; |
1057 | err: | |
1058 | return (ret); | |
1059 | } | |
5572f482 RL |
1060 | |
1061 | static int ubsec_rand_status(void) | |
40720ce3 MC |
1062 | { |
1063 | return 0; | |
1064 | } | |
1065 | # endif | |
5572f482 | 1066 | |
40720ce3 MC |
1067 | /* |
1068 | * This stuff is needed if this ENGINE is being compiled into a | |
1069 | * self-contained shared-library. | |
1070 | */ | |
1071 | # ifndef OPENSSL_NO_DYNAMIC_ENGINE | |
5572f482 | 1072 | static int bind_fn(ENGINE *e, const char *id) |
40720ce3 MC |
1073 | { |
1074 | if (id && (strcmp(id, engine_ubsec_id) != 0)) | |
1075 | return 0; | |
1076 | if (!bind_helper(e)) | |
1077 | return 0; | |
1078 | return 1; | |
1079 | } | |
5572f482 | 1080 | |
40720ce3 MC |
1081 | IMPLEMENT_DYNAMIC_CHECK_FN() |
1082 | IMPLEMENT_DYNAMIC_BIND_FN(bind_fn) | |
1083 | # endif /* OPENSSL_NO_DYNAMIC_ENGINE */ | |
1084 | # endif /* !OPENSSL_NO_HW_UBSEC */ | |
1085 | #endif /* !OPENSSL_NO_HW */ |