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diff --git a/src/lib/libcrypto/engine/hw_sureware.c b/src/lib/libcrypto/engine/hw_sureware.c
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1/* Written by Corinne Dive-Reclus(cdive@baltimore.com)
2*
3*
4* Redistribution and use in source and binary forms, with or without
5* modification, are permitted provided that the following conditions
6* are met:
7*
8* 1. Redistributions of source code must retain the above copyright
9* notice, this list of conditions and the following disclaimer.
10*
11* 2. Redistributions in binary form must reproduce the above copyright
12* notice, this list of conditions and the following disclaimer in
13* the documentation and/or other materials provided with the
14* distribution.
15*
16* 3. All advertising materials mentioning features or use of this
17* software must display the following acknowledgment:
18* "This product includes software developed by the OpenSSL Project
19* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
20*
21* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22* endorse or promote products derived from this software without
23* prior written permission. For written permission, please contact
24* licensing@OpenSSL.org.
25*
26* 5. Products derived from this software may not be called "OpenSSL"
27* nor may "OpenSSL" appear in their names without prior written
28* permission of the OpenSSL Project.
29*
30* 6. Redistributions of any form whatsoever must retain the following
31* acknowledgment:
32* "This product includes software developed by the OpenSSL Project
33* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
34*
35* Written by Corinne Dive-Reclus(cdive@baltimore.com)
36*
37* Copyright@2001 Baltimore Technologies Ltd.
38* All right Reserved.
39* *
40* THIS FILE IS PROVIDED BY BALTIMORE TECHNOLOGIES ``AS IS'' AND *
41* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE *
42* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE *
43* ARE DISCLAIMED. IN NO EVENT SHALL BALTIMORE TECHNOLOGIES BE LIABLE *
44* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL *
45* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS *
46* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) *
47* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT *
48* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY *
49* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF *
50* SUCH DAMAGE. *
51====================================================================*/
52
53#include <stdio.h>
54#include "cryptlib.h"
55#include <openssl/crypto.h>
56#include <openssl/pem.h>
57#include <openssl/dso.h>
58#include "eng_int.h"
59#include "engine.h"
60#include <openssl/engine.h>
61
62#ifndef OPENSSL_NO_HW
63#ifndef OPENSSL_NO_HW_SUREWARE
64
65#ifdef FLAT_INC
66#include "sureware.h"
67#else
68#include "vendor_defns/sureware.h"
69#endif
70
71#define SUREWARE_LIB_NAME "sureware engine"
72#include "hw_sureware_err.c"
73
74static int surewarehk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)());
75static int surewarehk_destroy(ENGINE *e);
76static int surewarehk_init(ENGINE *e);
77static int surewarehk_finish(ENGINE *e);
78static int surewarehk_modexp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
79 const BIGNUM *m, BN_CTX *ctx);
80
81/* RSA stuff */
82static int surewarehk_rsa_priv_dec(int flen,const unsigned char *from,unsigned char *to,
83 RSA *rsa,int padding);
84static int surewarehk_rsa_sign(int flen,const unsigned char *from,unsigned char *to,
85 RSA *rsa,int padding);
86
87/* RAND stuff */
88static int surewarehk_rand_bytes(unsigned char *buf, int num);
89static void surewarehk_rand_seed(const void *buf, int num);
90static void surewarehk_rand_add(const void *buf, int num, double entropy);
91
92/* KM stuff */
93static EVP_PKEY *surewarehk_load_privkey(ENGINE *e, const char *key_id,
94 UI_METHOD *ui_method, void *callback_data);
95static EVP_PKEY *surewarehk_load_pubkey(ENGINE *e, const char *key_id,
96 UI_METHOD *ui_method, void *callback_data);
97static void surewarehk_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
98 int idx,long argl, void *argp);
99#if 0
100static void surewarehk_dh_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
101 int idx,long argl, void *argp);
102#endif
103
104#ifndef OPENSSL_NO_RSA
105/* This function is aliased to mod_exp (with the mont stuff dropped). */
106static int surewarehk_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
107 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
108{
109 return surewarehk_modexp(r, a, p, m, ctx);
110}
111
112/* Our internal RSA_METHOD that we provide pointers to */
113static RSA_METHOD surewarehk_rsa =
114 {
115 "SureWare RSA method",
116 NULL, /* pub_enc*/
117 NULL, /* pub_dec*/
118 surewarehk_rsa_sign, /* our rsa_sign is OpenSSL priv_enc*/
119 surewarehk_rsa_priv_dec, /* priv_dec*/
120 NULL, /*mod_exp*/
121 surewarehk_mod_exp_mont, /*mod_exp_mongomery*/
122 NULL, /* init*/
123 NULL, /* finish*/
124 0, /* RSA flag*/
125 NULL,
126 NULL, /* OpenSSL sign*/
127 NULL /* OpenSSL verify*/
128 };
129#endif
130
131#ifndef OPENSSL_NO_DH
132/* Our internal DH_METHOD that we provide pointers to */
133/* This function is aliased to mod_exp (with the dh and mont dropped). */
134static int surewarehk_modexp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
135 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
136{
137 return surewarehk_modexp(r, a, p, m, ctx);
138}
139
140static DH_METHOD surewarehk_dh =
141 {
142 "SureWare DH method",
143 NULL,/*gen_key*/
144 NULL,/*agree,*/
145 surewarehk_modexp_dh, /*dh mod exp*/
146 NULL, /* init*/
147 NULL, /* finish*/
148 0, /* flags*/
149 NULL
150 };
151#endif
152
153static RAND_METHOD surewarehk_rand =
154 {
155 /* "SureWare RAND method", */
156 surewarehk_rand_seed,
157 surewarehk_rand_bytes,
158 NULL,/*cleanup*/
159 surewarehk_rand_add,
160 surewarehk_rand_bytes,
161 NULL,/*rand_status*/
162 };
163
164#ifndef OPENSSL_NO_DSA
165/* DSA stuff */
166static DSA_SIG * surewarehk_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
167static int surewarehk_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
168 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
169 BN_CTX *ctx, BN_MONT_CTX *in_mont)
170{
171 BIGNUM t;
172 int to_return = 0;
173 BN_init(&t);
174 /* let rr = a1 ^ p1 mod m */
175 if (!surewarehk_modexp(rr,a1,p1,m,ctx)) goto end;
176 /* let t = a2 ^ p2 mod m */
177 if (!surewarehk_modexp(&t,a2,p2,m,ctx)) goto end;
178 /* let rr = rr * t mod m */
179 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
180 to_return = 1;
181end:
182 BN_free(&t);
183 return to_return;
184}
185
186static DSA_METHOD surewarehk_dsa =
187 {
188 "SureWare DSA method",
189 surewarehk_dsa_do_sign,
190 NULL,/*sign setup*/
191 NULL,/*verify,*/
192 surewarehk_dsa_mod_exp,/*mod exp*/
193 NULL,/*bn mod exp*/
194 NULL, /*init*/
195 NULL,/*finish*/
196 0,
197 NULL,
198 };
199#endif
200
201static const char *engine_sureware_id = "sureware";
202static const char *engine_sureware_name = "SureWare hardware engine support";
203
204/* Now, to our own code */
205
206/* As this is only ever called once, there's no need for locking
207 * (indeed - the lock will already be held by our caller!!!) */
208static int bind_sureware(ENGINE *e)
209{
210#ifndef OPENSSL_NO_RSA
211 const RSA_METHOD *meth1;
212#endif
213#ifndef OPENSSL_NO_DSA
214 const DSA_METHOD *meth2;
215#endif
216#ifndef OPENSSL_NO_DH
217 const DH_METHOD *meth3;
218#endif
219
220 if(!ENGINE_set_id(e, engine_sureware_id) ||
221 !ENGINE_set_name(e, engine_sureware_name) ||
222#ifndef OPENSSL_NO_RSA
223 !ENGINE_set_RSA(e, &surewarehk_rsa) ||
224#endif
225#ifndef OPENSSL_NO_DSA
226 !ENGINE_set_DSA(e, &surewarehk_dsa) ||
227#endif
228#ifndef OPENSSL_NO_DH
229 !ENGINE_set_DH(e, &surewarehk_dh) ||
230#endif
231 !ENGINE_set_RAND(e, &surewarehk_rand) ||
232 !ENGINE_set_destroy_function(e, surewarehk_destroy) ||
233 !ENGINE_set_init_function(e, surewarehk_init) ||
234 !ENGINE_set_finish_function(e, surewarehk_finish) ||
235 !ENGINE_set_ctrl_function(e, surewarehk_ctrl) ||
236 !ENGINE_set_load_privkey_function(e, surewarehk_load_privkey) ||
237 !ENGINE_set_load_pubkey_function(e, surewarehk_load_pubkey))
238 return 0;
239
240#ifndef OPENSSL_NO_RSA
241 /* We know that the "PKCS1_SSLeay()" functions hook properly
242 * to the cswift-specific mod_exp and mod_exp_crt so we use
243 * those functions. NB: We don't use ENGINE_openssl() or
244 * anything "more generic" because something like the RSAref
245 * code may not hook properly, and if you own one of these
246 * cards then you have the right to do RSA operations on it
247 * anyway! */
248 meth1 = RSA_PKCS1_SSLeay();
249 if (meth1)
250 {
251 surewarehk_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
252 surewarehk_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
253 }
254#endif
255
256#ifndef OPENSSL_NO_DSA
257 /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
258 * bits. */
259 meth2 = DSA_OpenSSL();
260 if (meth2)
261 {
262 surewarehk_dsa.dsa_do_verify = meth2->dsa_do_verify;
263 }
264#endif
265
266#ifndef OPENSSL_NO_DH
267 /* Much the same for Diffie-Hellman */
268 meth3 = DH_OpenSSL();
269 if (meth3)
270 {
271 surewarehk_dh.generate_key = meth3->generate_key;
272 surewarehk_dh.compute_key = meth3->compute_key;
273 }
274#endif
275
276 /* Ensure the sureware error handling is set up */
277 ERR_load_SUREWARE_strings();
278 return 1;
279}
280
281#ifdef ENGINE_DYNAMIC_SUPPORT
282static int bind_helper(ENGINE *e, const char *id)
283 {
284 if(id && (strcmp(id, engine_sureware_id) != 0))
285 return 0;
286 if(!bind_sureware(e))
287 return 0;
288 return 1;
289 }
290IMPLEMENT_DYNAMIC_CHECK_FN()
291IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
292#else
293static ENGINE *engine_sureware(void)
294 {
295 ENGINE *ret = ENGINE_new();
296 if(!ret)
297 return NULL;
298 if(!bind_sureware(ret))
299 {
300 ENGINE_free(ret);
301 return NULL;
302 }
303 return ret;
304 }
305
306void ENGINE_load_sureware(void)
307 {
308 /* Copied from eng_[openssl|dyn].c */
309 ENGINE *toadd = engine_sureware();
310 if(!toadd) return;
311 ENGINE_add(toadd);
312 ENGINE_free(toadd);
313 ERR_clear_error();
314 }
315#endif
316
317/* This is a process-global DSO handle used for loading and unloading
318 * the SureWareHook library. NB: This is only set (or unset) during an
319 * init() or finish() call (reference counts permitting) and they're
320 * operating with global locks, so this should be thread-safe
321 * implicitly. */
322static DSO *surewarehk_dso = NULL;
323#ifndef OPENSSL_NO_RSA
324static int rsaHndidx = -1; /* Index for KM handle. Not really used yet. */
325#endif
326#ifndef OPENSSL_NO_DSA
327static int dsaHndidx = -1; /* Index for KM handle. Not really used yet. */
328#endif
329
330/* These are the function pointers that are (un)set when the library has
331 * successfully (un)loaded. */
332static SureWareHook_Init_t *p_surewarehk_Init = NULL;
333static SureWareHook_Finish_t *p_surewarehk_Finish = NULL;
334static SureWareHook_Rand_Bytes_t *p_surewarehk_Rand_Bytes = NULL;
335static SureWareHook_Rand_Seed_t *p_surewarehk_Rand_Seed = NULL;
336static SureWareHook_Load_Privkey_t *p_surewarehk_Load_Privkey = NULL;
337static SureWareHook_Info_Pubkey_t *p_surewarehk_Info_Pubkey = NULL;
338static SureWareHook_Load_Rsa_Pubkey_t *p_surewarehk_Load_Rsa_Pubkey = NULL;
339static SureWareHook_Load_Dsa_Pubkey_t *p_surewarehk_Load_Dsa_Pubkey = NULL;
340static SureWareHook_Free_t *p_surewarehk_Free=NULL;
341static SureWareHook_Rsa_Priv_Dec_t *p_surewarehk_Rsa_Priv_Dec=NULL;
342static SureWareHook_Rsa_Sign_t *p_surewarehk_Rsa_Sign=NULL;
343static SureWareHook_Dsa_Sign_t *p_surewarehk_Dsa_Sign=NULL;
344static SureWareHook_Mod_Exp_t *p_surewarehk_Mod_Exp=NULL;
345
346/* Used in the DSO operations. */
347static const char *surewarehk_LIBNAME = "SureWareHook";
348static const char *n_surewarehk_Init = "SureWareHook_Init";
349static const char *n_surewarehk_Finish = "SureWareHook_Finish";
350static const char *n_surewarehk_Rand_Bytes="SureWareHook_Rand_Bytes";
351static const char *n_surewarehk_Rand_Seed="SureWareHook_Rand_Seed";
352static const char *n_surewarehk_Load_Privkey="SureWareHook_Load_Privkey";
353static const char *n_surewarehk_Info_Pubkey="SureWareHook_Info_Pubkey";
354static const char *n_surewarehk_Load_Rsa_Pubkey="SureWareHook_Load_Rsa_Pubkey";
355static const char *n_surewarehk_Load_Dsa_Pubkey="SureWareHook_Load_Dsa_Pubkey";
356static const char *n_surewarehk_Free="SureWareHook_Free";
357static const char *n_surewarehk_Rsa_Priv_Dec="SureWareHook_Rsa_Priv_Dec";
358static const char *n_surewarehk_Rsa_Sign="SureWareHook_Rsa_Sign";
359static const char *n_surewarehk_Dsa_Sign="SureWareHook_Dsa_Sign";
360static const char *n_surewarehk_Mod_Exp="SureWareHook_Mod_Exp";
361static BIO *logstream = NULL;
362
363/* SureWareHook library functions and mechanics - these are used by the
364 * higher-level functions further down. NB: As and where there's no
365 * error checking, take a look lower down where these functions are
366 * called, the checking and error handling is probably down there.
367*/
368static int threadsafe=1;
369static int surewarehk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)())
370{
371 int to_return = 1;
372
373 switch(cmd)
374 {
375 case ENGINE_CTRL_SET_LOGSTREAM:
376 {
377 BIO *bio = (BIO *)p;
378 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
379 if (logstream)
380 {
381 BIO_free(logstream);
382 logstream = NULL;
383 }
384 if (CRYPTO_add(&bio->references,1,CRYPTO_LOCK_BIO) > 1)
385 logstream = bio;
386 else
387 SUREWAREerr(SUREWARE_F_SUREWAREHK_CTRL,SUREWARE_R_BIO_WAS_FREED);
388 }
389 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
390 break;
391 /* This will prevent the initialisation function from "installing"
392 * the mutex-handling callbacks, even if they are available from
393 * within the library (or were provided to the library from the
394 * calling application). This is to remove any baggage for
395 * applications not using multithreading. */
396 case ENGINE_CTRL_CHIL_NO_LOCKING:
397 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
398 threadsafe = 0;
399 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
400 break;
401
402 /* The command isn't understood by this engine */
403 default:
404 SUREWAREerr(SUREWARE_F_SUREWAREHK_CTRL,
405 ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED);
406 to_return = 0;
407 break;
408 }
409
410 return to_return;
411}
412
413/* Destructor (complements the "ENGINE_surewarehk()" constructor) */
414static int surewarehk_destroy(ENGINE *e)
415{
416 ERR_unload_SUREWARE_strings();
417 return 1;
418}
419
420/* (de)initialisation functions. */
421static int surewarehk_init(ENGINE *e)
422{
423 char msg[64]="ENGINE_init";
424 SureWareHook_Init_t *p1=NULL;
425 SureWareHook_Finish_t *p2=NULL;
426 SureWareHook_Rand_Bytes_t *p3=NULL;
427 SureWareHook_Rand_Seed_t *p4=NULL;
428 SureWareHook_Load_Privkey_t *p5=NULL;
429 SureWareHook_Load_Rsa_Pubkey_t *p6=NULL;
430 SureWareHook_Free_t *p7=NULL;
431 SureWareHook_Rsa_Priv_Dec_t *p8=NULL;
432 SureWareHook_Rsa_Sign_t *p9=NULL;
433 SureWareHook_Dsa_Sign_t *p12=NULL;
434 SureWareHook_Info_Pubkey_t *p13=NULL;
435 SureWareHook_Load_Dsa_Pubkey_t *p14=NULL;
436 SureWareHook_Mod_Exp_t *p15=NULL;
437
438 if(surewarehk_dso != NULL)
439 {
440 SUREWAREerr(SUREWARE_F_SUREWAREHK_INIT,ENGINE_R_ALREADY_LOADED);
441 goto err;
442 }
443 /* Attempt to load libsurewarehk.so/surewarehk.dll/whatever. */
444 surewarehk_dso = DSO_load(NULL, surewarehk_LIBNAME, NULL, 0);
445 if(surewarehk_dso == NULL)
446 {
447 SUREWAREerr(SUREWARE_F_SUREWAREHK_INIT,ENGINE_R_DSO_FAILURE);
448 goto err;
449 }
450 if(!(p1=(SureWareHook_Init_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Init)) ||
451 !(p2=(SureWareHook_Finish_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Finish)) ||
452 !(p3=(SureWareHook_Rand_Bytes_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Rand_Bytes)) ||
453 !(p4=(SureWareHook_Rand_Seed_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Rand_Seed)) ||
454 !(p5=(SureWareHook_Load_Privkey_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Load_Privkey)) ||
455 !(p6=(SureWareHook_Load_Rsa_Pubkey_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Load_Rsa_Pubkey)) ||
456 !(p7=(SureWareHook_Free_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Free)) ||
457 !(p8=(SureWareHook_Rsa_Priv_Dec_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Rsa_Priv_Dec)) ||
458 !(p9=(SureWareHook_Rsa_Sign_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Rsa_Sign)) ||
459 !(p12=(SureWareHook_Dsa_Sign_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Dsa_Sign)) ||
460 !(p13=(SureWareHook_Info_Pubkey_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Info_Pubkey)) ||
461 !(p14=(SureWareHook_Load_Dsa_Pubkey_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Load_Dsa_Pubkey)) ||
462 !(p15=(SureWareHook_Mod_Exp_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Mod_Exp)))
463 {
464 SUREWAREerr(SUREWARE_F_SUREWAREHK_INIT,ENGINE_R_DSO_FAILURE);
465 goto err;
466 }
467 /* Copy the pointers */
468 p_surewarehk_Init = p1;
469 p_surewarehk_Finish = p2;
470 p_surewarehk_Rand_Bytes = p3;
471 p_surewarehk_Rand_Seed = p4;
472 p_surewarehk_Load_Privkey = p5;
473 p_surewarehk_Load_Rsa_Pubkey = p6;
474 p_surewarehk_Free = p7;
475 p_surewarehk_Rsa_Priv_Dec = p8;
476 p_surewarehk_Rsa_Sign = p9;
477 p_surewarehk_Dsa_Sign = p12;
478 p_surewarehk_Info_Pubkey = p13;
479 p_surewarehk_Load_Dsa_Pubkey = p14;
480 p_surewarehk_Mod_Exp = p15;
481 /* Contact the hardware and initialises it. */
482 if(p_surewarehk_Init(msg,threadsafe)==SUREWAREHOOK_ERROR_UNIT_FAILURE)
483 {
484 SUREWAREerr(SUREWARE_F_SUREWAREHK_INIT,SUREWARE_R_UNIT_FAILURE);
485 goto err;
486 }
487 if(p_surewarehk_Init(msg,threadsafe)==SUREWAREHOOK_ERROR_UNIT_FAILURE)
488 {
489 SUREWAREerr(SUREWARE_F_SUREWAREHK_INIT,SUREWARE_R_UNIT_FAILURE);
490 goto err;
491 }
492 /* try to load the default private key, if failed does not return a failure but
493 wait for an explicit ENGINE_load_privakey */
494 surewarehk_load_privkey(e,NULL,NULL,NULL);
495
496 /* Everything's fine. */
497#ifndef OPENSSL_NO_RSA
498 if (rsaHndidx == -1)
499 rsaHndidx = RSA_get_ex_new_index(0,
500 "SureWareHook RSA key handle",
501 NULL, NULL, surewarehk_ex_free);
502#endif
503#ifndef OPENSSL_NO_DSA
504 if (dsaHndidx == -1)
505 dsaHndidx = DSA_get_ex_new_index(0,
506 "SureWareHook DSA key handle",
507 NULL, NULL, surewarehk_ex_free);
508#endif
509
510 return 1;
511err:
512 if(surewarehk_dso)
513 DSO_free(surewarehk_dso);
514 surewarehk_dso = NULL;
515 p_surewarehk_Init = NULL;
516 p_surewarehk_Finish = NULL;
517 p_surewarehk_Rand_Bytes = NULL;
518 p_surewarehk_Rand_Seed = NULL;
519 p_surewarehk_Load_Privkey = NULL;
520 p_surewarehk_Load_Rsa_Pubkey = NULL;
521 p_surewarehk_Free = NULL;
522 p_surewarehk_Rsa_Priv_Dec = NULL;
523 p_surewarehk_Rsa_Sign = NULL;
524 p_surewarehk_Dsa_Sign = NULL;
525 p_surewarehk_Info_Pubkey = NULL;
526 p_surewarehk_Load_Dsa_Pubkey = NULL;
527 p_surewarehk_Mod_Exp = NULL;
528 return 0;
529}
530
531static int surewarehk_finish(ENGINE *e)
532{
533 int to_return = 1;
534 if(surewarehk_dso == NULL)
535 {
536 SUREWAREerr(SUREWARE_F_SUREWAREHK_FINISH,ENGINE_R_NOT_LOADED);
537 to_return = 0;
538 goto err;
539 }
540 p_surewarehk_Finish();
541 if(!DSO_free(surewarehk_dso))
542 {
543 SUREWAREerr(SUREWARE_F_SUREWAREHK_FINISH,ENGINE_R_DSO_FAILURE);
544 to_return = 0;
545 goto err;
546 }
547 err:
548 if (logstream)
549 BIO_free(logstream);
550 surewarehk_dso = NULL;
551 p_surewarehk_Init = NULL;
552 p_surewarehk_Finish = NULL;
553 p_surewarehk_Rand_Bytes = NULL;
554 p_surewarehk_Rand_Seed = NULL;
555 p_surewarehk_Load_Privkey = NULL;
556 p_surewarehk_Load_Rsa_Pubkey = NULL;
557 p_surewarehk_Free = NULL;
558 p_surewarehk_Rsa_Priv_Dec = NULL;
559 p_surewarehk_Rsa_Sign = NULL;
560 p_surewarehk_Dsa_Sign = NULL;
561 p_surewarehk_Info_Pubkey = NULL;
562 p_surewarehk_Load_Dsa_Pubkey = NULL;
563 p_surewarehk_Mod_Exp = NULL;
564 return to_return;
565}
566
567static void surewarehk_error_handling(char *const msg,int func,int ret)
568{
569 switch (ret)
570 {
571 case SUREWAREHOOK_ERROR_UNIT_FAILURE:
572 ENGINEerr(func,SUREWARE_R_UNIT_FAILURE);
573 break;
574 case SUREWAREHOOK_ERROR_FALLBACK:
575 ENGINEerr(func,SUREWARE_R_REQUEST_FALLBACK);
576 break;
577 case SUREWAREHOOK_ERROR_DATA_SIZE:
578 ENGINEerr(func,SUREWARE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
579 break;
580 case SUREWAREHOOK_ERROR_INVALID_PAD:
581 ENGINEerr(func,RSA_R_PADDING_CHECK_FAILED);
582 break;
583 default:
584 ENGINEerr(func,SUREWARE_R_REQUEST_FAILED);
585 break;
586 case 1:/*nothing*/
587 msg[0]='\0';
588 }
589 if (*msg)
590 {
591 ERR_add_error_data(1,msg);
592 if (logstream)
593 {
594 CRYPTO_w_lock(CRYPTO_LOCK_BIO);
595 BIO_write(logstream, msg, strlen(msg));
596 CRYPTO_w_unlock(CRYPTO_LOCK_BIO);
597 }
598 }
599}
600
601static int surewarehk_rand_bytes(unsigned char *buf, int num)
602{
603 int ret=0;
604 char msg[64]="ENGINE_rand_bytes";
605 if(!p_surewarehk_Rand_Bytes)
606 {
607 SUREWAREerr(SUREWARE_F_SUREWAREHK_RAND_BYTES,ENGINE_R_NOT_INITIALISED);
608 }
609 else
610 {
611 ret = p_surewarehk_Rand_Bytes(msg,buf, num);
612 surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_RAND_BYTES,ret);
613 }
614 return ret==1 ? 1 : 0;
615}
616
617static void surewarehk_rand_seed(const void *buf, int num)
618{
619 int ret=0;
620 char msg[64]="ENGINE_rand_seed";
621 if(!p_surewarehk_Rand_Seed)
622 {
623 SUREWAREerr(SUREWARE_F_SUREWAREHK_RAND_SEED,ENGINE_R_NOT_INITIALISED);
624 }
625 else
626 {
627 ret = p_surewarehk_Rand_Seed(msg,buf, num);
628 surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_RAND_SEED,ret);
629 }
630}
631
632static void surewarehk_rand_add(const void *buf, int num, double entropy)
633{
634 surewarehk_rand_seed(buf,num);
635}
636
637static EVP_PKEY* sureware_load_public(ENGINE *e,const char *key_id,char *hptr,unsigned long el,char keytype)
638{
639 EVP_PKEY *res = NULL;
640#ifndef OPENSSL_NO_RSA
641 RSA *rsatmp = NULL;
642#endif
643#ifndef OPENSSL_NO_DSA
644 DSA *dsatmp=NULL;
645#endif
646 char msg[64]="sureware_load_public";
647 int ret=0;
648 if(!p_surewarehk_Load_Rsa_Pubkey || !p_surewarehk_Load_Dsa_Pubkey)
649 {
650 SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PUBLIC_KEY,ENGINE_R_NOT_INITIALISED);
651 goto err;
652 }
653 switch (keytype)
654 {
655#ifndef OPENSSL_NO_RSA
656 case 1: /*RSA*/
657 /* set private external reference */
658 rsatmp = RSA_new_method(e);
659 RSA_set_ex_data(rsatmp,rsaHndidx,hptr);
660 rsatmp->flags |= RSA_FLAG_EXT_PKEY;
661
662 /* set public big nums*/
663 rsatmp->e = BN_new();
664 rsatmp->n = BN_new();
665 bn_expand2(rsatmp->e, el/sizeof(BN_ULONG));
666 bn_expand2(rsatmp->n, el/sizeof(BN_ULONG));
667 if (!rsatmp->e || rsatmp->e->dmax!=(int)(el/sizeof(BN_ULONG))||
668 !rsatmp->n || rsatmp->n->dmax!=(int)(el/sizeof(BN_ULONG)))
669 goto err;
670 ret=p_surewarehk_Load_Rsa_Pubkey(msg,key_id,el,
671 (unsigned long *)rsatmp->n->d,
672 (unsigned long *)rsatmp->e->d);
673 surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_LOAD_PUBLIC_KEY,ret);
674 if (ret!=1)
675 {
676 SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PRIVATE_KEY,ENGINE_R_FAILED_LOADING_PUBLIC_KEY);
677 goto err;
678 }
679 /* normalise pub e and pub n */
680 rsatmp->e->top=el/sizeof(BN_ULONG);
681 bn_fix_top(rsatmp->e);
682 rsatmp->n->top=el/sizeof(BN_ULONG);
683 bn_fix_top(rsatmp->n);
684 /* create an EVP object: engine + rsa key */
685 res = EVP_PKEY_new();
686 EVP_PKEY_assign_RSA(res, rsatmp);
687 break;
688#endif
689
690#ifndef OPENSSL_NO_DSA
691 case 2:/*DSA*/
692 /* set private/public external reference */
693 dsatmp = DSA_new_method(e);
694 DSA_set_ex_data(dsatmp,dsaHndidx,hptr);
695 /*dsatmp->flags |= DSA_FLAG_EXT_PKEY;*/
696
697 /* set public key*/
698 dsatmp->pub_key = BN_new();
699 dsatmp->p = BN_new();
700 dsatmp->q = BN_new();
701 dsatmp->g = BN_new();
702 bn_expand2(dsatmp->pub_key, el/sizeof(BN_ULONG));
703 bn_expand2(dsatmp->p, el/sizeof(BN_ULONG));
704 bn_expand2(dsatmp->q, 20/sizeof(BN_ULONG));
705 bn_expand2(dsatmp->g, el/sizeof(BN_ULONG));
706 if (!dsatmp->pub_key || dsatmp->pub_key->dmax!=(int)(el/sizeof(BN_ULONG))||
707 !dsatmp->p || dsatmp->p->dmax!=(int)(el/sizeof(BN_ULONG)) ||
708 !dsatmp->q || dsatmp->q->dmax!=20/sizeof(BN_ULONG) ||
709 !dsatmp->g || dsatmp->g->dmax!=(int)(el/sizeof(BN_ULONG)))
710 goto err;
711
712 ret=p_surewarehk_Load_Dsa_Pubkey(msg,key_id,el,
713 (unsigned long *)dsatmp->pub_key->d,
714 (unsigned long *)dsatmp->p->d,
715 (unsigned long *)dsatmp->q->d,
716 (unsigned long *)dsatmp->g->d);
717 surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_LOAD_PUBLIC_KEY,ret);
718 if (ret!=1)
719 {
720 SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PRIVATE_KEY,ENGINE_R_FAILED_LOADING_PUBLIC_KEY);
721 goto err;
722 }
723 /* set parameters */
724 /* normalise pubkey and parameters in case of */
725 dsatmp->pub_key->top=el/sizeof(BN_ULONG);
726 bn_fix_top(dsatmp->pub_key);
727 dsatmp->p->top=el/sizeof(BN_ULONG);
728 bn_fix_top(dsatmp->p);
729 dsatmp->q->top=20/sizeof(BN_ULONG);
730 bn_fix_top(dsatmp->q);
731 dsatmp->g->top=el/sizeof(BN_ULONG);
732 bn_fix_top(dsatmp->g);
733
734 /* create an EVP object: engine + rsa key */
735 res = EVP_PKEY_new();
736 EVP_PKEY_assign_DSA(res, dsatmp);
737 break;
738#endif
739
740 default:
741 SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PRIVATE_KEY,ENGINE_R_FAILED_LOADING_PRIVATE_KEY);
742 goto err;
743 }
744 return res;
745 err:
746 if (res)
747 EVP_PKEY_free(res);
748#ifndef OPENSSL_NO_RSA
749 if (rsatmp)
750 RSA_free(rsatmp);
751#endif
752#ifndef OPENSSL_NO_DSA
753 if (dsatmp)
754 DSA_free(dsatmp);
755#endif
756 return NULL;
757}
758
759static EVP_PKEY *surewarehk_load_privkey(ENGINE *e, const char *key_id,
760 UI_METHOD *ui_method, void *callback_data)
761{
762 EVP_PKEY *res = NULL;
763 int ret=0;
764 unsigned long el=0;
765 char *hptr=NULL;
766 char keytype=0;
767 char msg[64]="ENGINE_load_privkey";
768
769 if(!p_surewarehk_Load_Privkey)
770 {
771 SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PRIVATE_KEY,ENGINE_R_NOT_INITIALISED);
772 }
773 else
774 {
775 ret=p_surewarehk_Load_Privkey(msg,key_id,&hptr,&el,&keytype);
776 if (ret!=1)
777 {
778 SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PRIVATE_KEY,ENGINE_R_FAILED_LOADING_PRIVATE_KEY);
779 ERR_add_error_data(1,msg);
780 }
781 else
782 res=sureware_load_public(e,key_id,hptr,el,keytype);
783 }
784 return res;
785}
786
787static EVP_PKEY *surewarehk_load_pubkey(ENGINE *e, const char *key_id,
788 UI_METHOD *ui_method, void *callback_data)
789{
790 EVP_PKEY *res = NULL;
791 int ret=0;
792 unsigned long el=0;
793 char *hptr=NULL;
794 char keytype=0;
795 char msg[64]="ENGINE_load_pubkey";
796
797 if(!p_surewarehk_Info_Pubkey)
798 {
799 SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PUBLIC_KEY,ENGINE_R_NOT_INITIALISED);
800 }
801 else
802 {
803 /* call once to identify if DSA or RSA */
804 ret=p_surewarehk_Info_Pubkey(msg,key_id,&el,&keytype);
805 if (ret!=1)
806 {
807 SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PUBLIC_KEY,ENGINE_R_FAILED_LOADING_PUBLIC_KEY);
808 ERR_add_error_data(1,msg);
809 }
810 else
811 res=sureware_load_public(e,key_id,hptr,el,keytype);
812 }
813 return res;
814}
815
816/* This cleans up an RSA/DSA KM key(do not destroy the key into the hardware)
817, called when ex_data is freed */
818static void surewarehk_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
819 int idx,long argl, void *argp)
820{
821 if(!p_surewarehk_Free)
822 {
823 SUREWAREerr(SUREWARE_F_SUREWAREHK_EX_FREE,ENGINE_R_NOT_INITIALISED);
824 }
825 else
826 p_surewarehk_Free((char *)item,0);
827}
828
829#if 0
830/* This cleans up an DH KM key (destroys the key into hardware),
831called when ex_data is freed */
832static void surewarehk_dh_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
833 int idx,long argl, void *argp)
834{
835 if(!p_surewarehk_Free)
836 {
837 SUREWAREerr(SUREWARE_F_SUREWAREHK_EX_FREE,ENGINE_R_NOT_INITIALISED);
838 }
839 else
840 p_surewarehk_Free((char *)item,1);
841}
842#endif
843
844/*
845* return number of decrypted bytes
846*/
847#ifndef OPENSSL_NO_RSA
848static int surewarehk_rsa_priv_dec(int flen,const unsigned char *from,unsigned char *to,
849 RSA *rsa,int padding)
850{
851 int ret=0,tlen;
852 char *buf=NULL,*hptr=NULL;
853 char msg[64]="ENGINE_rsa_priv_dec";
854 if (!p_surewarehk_Rsa_Priv_Dec)
855 {
856 SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,ENGINE_R_NOT_INITIALISED);
857 }
858 /* extract ref to private key */
859 else if (!(hptr=RSA_get_ex_data(rsa, rsaHndidx)))
860 {
861 SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,SUREWARE_R_MISSING_KEY_COMPONENTS);
862 goto err;
863 }
864 /* analyse what padding we can do into the hardware */
865 if (padding==RSA_PKCS1_PADDING)
866 {
867 /* do it one shot */
868 ret=p_surewarehk_Rsa_Priv_Dec(msg,flen,(unsigned char *)from,&tlen,to,hptr,SUREWARE_PKCS1_PAD);
869 surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,ret);
870 if (ret!=1)
871 goto err;
872 ret=tlen;
873 }
874 else /* do with no padding into hardware */
875 {
876 ret=p_surewarehk_Rsa_Priv_Dec(msg,flen,(unsigned char *)from,&tlen,to,hptr,SUREWARE_NO_PAD);
877 surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,ret);
878 if (ret!=1)
879 goto err;
880 /* intermediate buffer for padding */
881 if ((buf=OPENSSL_malloc(tlen)) == NULL)
882 {
883 RSAerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,ERR_R_MALLOC_FAILURE);
884 goto err;
885 }
886 memcpy(buf,to,tlen);/* transfert to into buf */
887 switch (padding) /* check padding in software */
888 {
889#ifndef OPENSSL_NO_SHA
890 case RSA_PKCS1_OAEP_PADDING:
891 ret=RSA_padding_check_PKCS1_OAEP(to,tlen,(unsigned char *)buf,tlen,tlen,NULL,0);
892 break;
893#endif
894 case RSA_SSLV23_PADDING:
895 ret=RSA_padding_check_SSLv23(to,tlen,(unsigned char *)buf,flen,tlen);
896 break;
897 case RSA_NO_PADDING:
898 ret=RSA_padding_check_none(to,tlen,(unsigned char *)buf,flen,tlen);
899 break;
900 default:
901 RSAerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,RSA_R_UNKNOWN_PADDING_TYPE);
902 goto err;
903 }
904 if (ret < 0)
905 RSAerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,RSA_R_PADDING_CHECK_FAILED);
906 }
907err:
908 if (buf)
909 {
910 OPENSSL_cleanse(buf,tlen);
911 OPENSSL_free(buf);
912 }
913 return ret;
914}
915
916/*
917* Does what OpenSSL rsa_priv_enc does.
918*/
919static int surewarehk_rsa_sign(int flen,const unsigned char *from,unsigned char *to,
920 RSA *rsa,int padding)
921{
922 int ret=0,tlen;
923 char *hptr=NULL;
924 char msg[64]="ENGINE_rsa_sign";
925 if (!p_surewarehk_Rsa_Sign)
926 {
927 SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_ENC,ENGINE_R_NOT_INITIALISED);
928 }
929 /* extract ref to private key */
930 else if (!(hptr=RSA_get_ex_data(rsa, rsaHndidx)))
931 {
932 SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_ENC,SUREWARE_R_MISSING_KEY_COMPONENTS);
933 }
934 else
935 {
936 switch (padding)
937 {
938 case RSA_PKCS1_PADDING: /* do it in one shot */
939 ret=p_surewarehk_Rsa_Sign(msg,flen,(unsigned char *)from,&tlen,to,hptr,SUREWARE_PKCS1_PAD);
940 surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_RSA_PRIV_ENC,ret);
941 break;
942 case RSA_NO_PADDING:
943 default:
944 RSAerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_ENC,RSA_R_UNKNOWN_PADDING_TYPE);
945 }
946 }
947 return ret==1 ? tlen : ret;
948}
949
950#endif
951
952#ifndef OPENSSL_NO_DSA
953/* DSA sign and verify */
954static DSA_SIG * surewarehk_dsa_do_sign(const unsigned char *from, int flen, DSA *dsa)
955{
956 int ret=0;
957 char *hptr=NULL;
958 DSA_SIG *psign=NULL;
959 char msg[64]="ENGINE_dsa_do_sign";
960 if (!p_surewarehk_Dsa_Sign)
961 {
962 SUREWAREerr(SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,ENGINE_R_NOT_INITIALISED);
963 }
964 /* extract ref to private key */
965 else if (!(hptr=DSA_get_ex_data(dsa, dsaHndidx)))
966 {
967 SUREWAREerr(SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,SUREWARE_R_MISSING_KEY_COMPONENTS);
968 }
969 else
970 {
971 if((psign = DSA_SIG_new()) == NULL)
972 {
973 SUREWAREerr(SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,ERR_R_MALLOC_FAILURE);
974 goto err;
975 }
976 psign->r=BN_new();
977 psign->s=BN_new();
978 bn_expand2(psign->r, 20/sizeof(BN_ULONG));
979 bn_expand2(psign->s, 20/sizeof(BN_ULONG));
980 if (!psign->r || psign->r->dmax!=20/sizeof(BN_ULONG) ||
981 !psign->s || psign->s->dmax!=20/sizeof(BN_ULONG))
982 goto err;
983 ret=p_surewarehk_Dsa_Sign(msg,flen,from,
984 (unsigned long *)psign->r->d,
985 (unsigned long *)psign->s->d,
986 hptr);
987 surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,ret);
988 }
989 psign->r->top=20/sizeof(BN_ULONG);
990 bn_fix_top(psign->r);
991 psign->s->top=20/sizeof(BN_ULONG);
992 bn_fix_top(psign->s);
993
994err:
995 if (psign)
996 {
997 DSA_SIG_free(psign);
998 psign=NULL;
999 }
1000 return psign;
1001}
1002#endif
1003
1004static int surewarehk_modexp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
1005 const BIGNUM *m, BN_CTX *ctx)
1006{
1007 int ret=0;
1008 char msg[64]="ENGINE_modexp";
1009 if (!p_surewarehk_Mod_Exp)
1010 {
1011 SUREWAREerr(SUREWARE_F_SUREWAREHK_MOD_EXP,ENGINE_R_NOT_INITIALISED);
1012 }
1013 else
1014 {
1015 bn_expand2(r,m->top);
1016 if (r && r->dmax==m->top)
1017 {
1018 /* do it*/
1019 ret=p_surewarehk_Mod_Exp(msg,
1020 m->top*sizeof(BN_ULONG),
1021 (unsigned long *)m->d,
1022 p->top*sizeof(BN_ULONG),
1023 (unsigned long *)p->d,
1024 a->top*sizeof(BN_ULONG),
1025 (unsigned long *)a->d,
1026 (unsigned long *)r->d);
1027 surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_MOD_EXP,ret);
1028 if (ret==1)
1029 {
1030 /* normalise result */
1031 r->top=m->top;
1032 bn_fix_top(r);
1033 }
1034 }
1035 }
1036 return ret;
1037}
1038#endif /* !OPENSSL_NO_HW_SureWare */
1039#endif /* !OPENSSL_NO_HW */
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-26 19:51:12 +0000