1 /* ====================================================================
2 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
30 * 6. Redistributions of any form whatsoever must retain the following
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ====================================================================
49 * This product includes cryptographic software written by Eric Young
50 * (eay@cryptsoft.com). This product includes software written by Tim
51 * Hudson (tjh@cryptsoft.com).
56 #include <openssl/bn.h>
59 #include <openssl/e_os2.h>
60 #if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__) || defined(__MINGW32__)
61 # include <sys/types.h>
68 #if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB)
69 # define getpid GetThreadID
70 extern int GetThreadID(void);
71 #elif defined(_WIN32) && !defined(__WATCOMC__)
72 # define getpid _getpid
75 #include <openssl/crypto.h>
76 #include <openssl/dso.h>
77 #include <openssl/engine.h>
78 #include <openssl/buffer.h>
79 #ifndef OPENSSL_NO_RSA
80 # include <openssl/rsa.h>
82 #ifndef OPENSSL_NO_DSA
83 # include <openssl/dsa.h>
86 # include <openssl/dh.h>
90 # ifndef OPENSSL_NO_HW_AEP
94 # include "vendor_defns/aep.h"
97 # define AEP_LIB_NAME "aep engine"
98 # define FAIL_TO_SW 0x10101010
100 # include "e_aep_err.c"
102 static int aep_init(ENGINE *e);
103 static int aep_finish(ENGINE *e);
104 static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void));
105 static int aep_destroy(ENGINE *e);
107 static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR hConnection);
108 static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection);
109 static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection);
110 static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use);
113 # ifndef OPENSSL_NO_RSA
114 static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
115 const BIGNUM *m, BN_CTX *ctx);
117 static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
118 const BIGNUM *q, const BIGNUM *dmp1,
119 const BIGNUM *dmq1, const BIGNUM *iqmp,
124 # ifndef OPENSSL_NO_RSA
125 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
129 /* This function is aliased to mod_exp (with the mont stuff dropped). */
130 # ifndef OPENSSL_NO_RSA
131 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
132 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
136 # ifndef OPENSSL_NO_DSA
137 static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
138 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
139 BN_CTX *ctx, BN_MONT_CTX *in_mont);
141 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
142 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
147 /* This function is aliased to mod_exp (with the DH and mont dropped). */
148 # ifndef OPENSSL_NO_DH
149 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
150 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
156 static int aep_rand(unsigned char *buf, int num);
157 static int aep_rand_status(void);
160 /* Bignum conversion stuff */
161 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32 *BigNumSize);
162 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
163 unsigned char *AEP_BigNum);
164 static AEP_RV ConvertAEPBigNum(void *ArbBigNum, AEP_U32 BigNumSize,
165 unsigned char *AEP_BigNum);
167 /* The definitions for control commands specific to this engine */
168 # define AEP_CMD_SO_PATH ENGINE_CMD_BASE
169 static const ENGINE_CMD_DEFN aep_cmd_defns[] = {
172 "Specifies the path to the 'aep' shared library",
173 ENGINE_CMD_FLAG_STRING},
177 # ifndef OPENSSL_NO_RSA
178 /* Our internal RSA_METHOD that we provide pointers to */
179 static RSA_METHOD aep_rsa = {
181 NULL, /* rsa_pub_encrypt */
182 NULL, /* rsa_pub_decrypt */
183 NULL, /* rsa_priv_encrypt */
184 NULL, /* rsa_priv_encrypt */
185 aep_rsa_mod_exp, /* rsa_mod_exp */
186 aep_mod_exp_mont, /* bn_mod_exp */
192 NULL, /* rsa_verify */
193 NULL /* rsa_keygen */
197 # ifndef OPENSSL_NO_DSA
198 /* Our internal DSA_METHOD that we provide pointers to */
199 static DSA_METHOD aep_dsa = {
201 NULL, /* dsa_do_sign */
202 NULL, /* dsa_sign_setup */
203 NULL, /* dsa_do_verify */
204 aep_dsa_mod_exp, /* dsa_mod_exp */
205 aep_mod_exp_dsa, /* bn_mod_exp */
210 NULL, /* dsa_paramgen */
211 NULL /* dsa_keygen */
215 # ifndef OPENSSL_NO_DH
216 /* Our internal DH_METHOD that we provide pointers to */
217 static DH_METHOD aep_dh = {
231 /* our internal RAND_method that we provide pointers to */
232 static RAND_METHOD aep_random = {
246 * Define an array of structures to hold connections
248 static AEP_CONNECTION_ENTRY aep_app_conn_table[MAX_PROCESS_CONNECTIONS];
251 * Used to determine if this is a new process
253 static pid_t recorded_pid = 0;
256 static AEP_U8 rand_block[RAND_BLK_SIZE];
257 static AEP_U32 rand_block_bytes = 0;
260 /* Constants used when creating the ENGINE */
261 static const char *engine_aep_id = "aep";
262 static const char *engine_aep_name = "Aep hardware engine support";
264 static int max_key_len = 2176;
267 * This internal function is used by ENGINE_aep() and possibly by the
268 * "dynamic" ENGINE support too
270 static int bind_aep(ENGINE *e)
272 # ifndef OPENSSL_NO_RSA
273 const RSA_METHOD *meth1;
275 # ifndef OPENSSL_NO_DSA
276 const DSA_METHOD *meth2;
278 # ifndef OPENSSL_NO_DH
279 const DH_METHOD *meth3;
282 if (!ENGINE_set_id(e, engine_aep_id) ||
283 !ENGINE_set_name(e, engine_aep_name) ||
284 # ifndef OPENSSL_NO_RSA
285 !ENGINE_set_RSA(e, &aep_rsa) ||
287 # ifndef OPENSSL_NO_DSA
288 !ENGINE_set_DSA(e, &aep_dsa) ||
290 # ifndef OPENSSL_NO_DH
291 !ENGINE_set_DH(e, &aep_dh) ||
294 !ENGINE_set_RAND(e, &aep_random) ||
296 !ENGINE_set_init_function(e, aep_init) ||
297 !ENGINE_set_destroy_function(e, aep_destroy) ||
298 !ENGINE_set_finish_function(e, aep_finish) ||
299 !ENGINE_set_ctrl_function(e, aep_ctrl) ||
300 !ENGINE_set_cmd_defns(e, aep_cmd_defns))
303 # ifndef OPENSSL_NO_RSA
305 * We know that the "PKCS1_SSLeay()" functions hook properly to the
306 * aep-specific mod_exp and mod_exp_crt so we use those functions. NB: We
307 * don't use ENGINE_openssl() or anything "more generic" because
308 * something like the RSAref code may not hook properly, and if you own
309 * one of these cards then you have the right to do RSA operations on it
312 meth1 = RSA_PKCS1_SSLeay();
313 aep_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
314 aep_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
315 aep_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
316 aep_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
319 # ifndef OPENSSL_NO_DSA
321 * Use the DSA_OpenSSL() method and just hook the mod_exp-ish bits.
323 meth2 = DSA_OpenSSL();
324 aep_dsa.dsa_do_sign = meth2->dsa_do_sign;
325 aep_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
326 aep_dsa.dsa_do_verify = meth2->dsa_do_verify;
328 aep_dsa = *DSA_get_default_method();
329 aep_dsa.dsa_mod_exp = aep_dsa_mod_exp;
330 aep_dsa.bn_mod_exp = aep_mod_exp_dsa;
333 # ifndef OPENSSL_NO_DH
334 /* Much the same for Diffie-Hellman */
335 meth3 = DH_OpenSSL();
336 aep_dh.generate_key = meth3->generate_key;
337 aep_dh.compute_key = meth3->compute_key;
338 aep_dh.bn_mod_exp = meth3->bn_mod_exp;
341 /* Ensure the aep error handling is set up */
342 ERR_load_AEPHK_strings();
347 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
348 static int bind_helper(ENGINE *e, const char *id)
350 if (id && (strcmp(id, engine_aep_id) != 0))
357 IMPLEMENT_DYNAMIC_CHECK_FN()
358 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
360 static ENGINE *engine_aep(void)
362 ENGINE *ret = ENGINE_new();
365 if (!bind_aep(ret)) {
372 void ENGINE_load_aep(void)
374 /* Copied from eng_[openssl|dyn].c */
375 ENGINE *toadd = engine_aep();
385 * This is a process-global DSO handle used for loading and unloading the Aep
386 * library. NB: This is only set (or unset) during an init() or finish() call
387 * (reference counts permitting) and they're operating with global locks, so
388 * this should be thread-safe implicitly.
390 static DSO *aep_dso = NULL;
393 * These are the static string constants for the DSO file name and the
394 * function symbol names to bind to.
396 static const char *AEP_LIBNAME = NULL;
397 static const char *get_AEP_LIBNAME(void)
404 static void free_AEP_LIBNAME(void)
407 OPENSSL_free((void *)AEP_LIBNAME);
411 static long set_AEP_LIBNAME(const char *name)
414 return ((AEP_LIBNAME = BUF_strdup(name)) != NULL ? 1 : 0);
417 static const char *AEP_F1 = "AEP_ModExp";
418 static const char *AEP_F2 = "AEP_ModExpCrt";
420 static const char *AEP_F3 = "AEP_GenRandom";
422 static const char *AEP_F4 = "AEP_Finalize";
423 static const char *AEP_F5 = "AEP_Initialize";
424 static const char *AEP_F6 = "AEP_OpenConnection";
425 static const char *AEP_F7 = "AEP_SetBNCallBacks";
426 static const char *AEP_F8 = "AEP_CloseConnection";
429 * These are the function pointers that are (un)set when the library has
430 * successfully (un)loaded.
432 static t_AEP_OpenConnection *p_AEP_OpenConnection = NULL;
433 static t_AEP_CloseConnection *p_AEP_CloseConnection = NULL;
434 static t_AEP_ModExp *p_AEP_ModExp = NULL;
435 static t_AEP_ModExpCrt *p_AEP_ModExpCrt = NULL;
437 static t_AEP_GenRandom *p_AEP_GenRandom = NULL;
439 static t_AEP_Initialize *p_AEP_Initialize = NULL;
440 static t_AEP_Finalize *p_AEP_Finalize = NULL;
441 static t_AEP_SetBNCallBacks *p_AEP_SetBNCallBacks = NULL;
443 /* (de)initialisation functions. */
444 static int aep_init(ENGINE *e)
452 t_AEP_Initialize *p5;
453 t_AEP_OpenConnection *p6;
454 t_AEP_SetBNCallBacks *p7;
455 t_AEP_CloseConnection *p8;
459 if (aep_dso != NULL) {
460 AEPHKerr(AEPHK_F_AEP_INIT, AEPHK_R_ALREADY_LOADED);
463 /* Attempt to load libaep.so. */
465 aep_dso = DSO_load(NULL, get_AEP_LIBNAME(), NULL, 0);
467 if (aep_dso == NULL) {
468 AEPHKerr(AEPHK_F_AEP_INIT, AEPHK_R_NOT_LOADED);
472 if (!(p1 = (t_AEP_ModExp *) DSO_bind_func(aep_dso, AEP_F1)) ||
473 !(p2 = (t_AEP_ModExpCrt *) DSO_bind_func(aep_dso, AEP_F2)) ||
475 !(p3 = (t_AEP_GenRandom *) DSO_bind_func(aep_dso, AEP_F3)) ||
477 !(p4 = (t_AEP_Finalize *) DSO_bind_func(aep_dso, AEP_F4)) ||
478 !(p5 = (t_AEP_Initialize *) DSO_bind_func(aep_dso, AEP_F5)) ||
479 !(p6 = (t_AEP_OpenConnection *) DSO_bind_func(aep_dso, AEP_F6)) ||
480 !(p7 = (t_AEP_SetBNCallBacks *) DSO_bind_func(aep_dso, AEP_F7)) ||
481 !(p8 = (t_AEP_CloseConnection *) DSO_bind_func(aep_dso, AEP_F8))) {
482 AEPHKerr(AEPHK_F_AEP_INIT, AEPHK_R_NOT_LOADED);
486 /* Copy the pointers */
489 p_AEP_ModExpCrt = p2;
491 p_AEP_GenRandom = p3;
494 p_AEP_Initialize = p5;
495 p_AEP_OpenConnection = p6;
496 p_AEP_SetBNCallBacks = p7;
497 p_AEP_CloseConnection = p8;
509 p_AEP_OpenConnection = NULL;
511 p_AEP_ModExpCrt = NULL;
513 p_AEP_GenRandom = NULL;
515 p_AEP_Initialize = NULL;
516 p_AEP_Finalize = NULL;
517 p_AEP_SetBNCallBacks = NULL;
518 p_AEP_CloseConnection = NULL;
523 /* Destructor (complements the "ENGINE_aep()" constructor) */
524 static int aep_destroy(ENGINE *e)
527 ERR_unload_AEPHK_strings();
531 static int aep_finish(ENGINE *e)
533 int to_return = 0, in_use;
536 if (aep_dso == NULL) {
537 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_NOT_LOADED);
541 rv = aep_close_all_connections(0, &in_use);
542 if (rv != AEP_R_OK) {
543 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_CLOSE_HANDLES_FAILED);
547 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_CONNECTIONS_IN_USE);
551 rv = p_AEP_Finalize();
552 if (rv != AEP_R_OK) {
553 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_FINALIZE_FAILED);
557 if (!DSO_free(aep_dso)) {
558 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_UNIT_FAILURE);
563 p_AEP_CloseConnection = NULL;
564 p_AEP_OpenConnection = NULL;
566 p_AEP_ModExpCrt = NULL;
568 p_AEP_GenRandom = NULL;
570 p_AEP_Initialize = NULL;
571 p_AEP_Finalize = NULL;
572 p_AEP_SetBNCallBacks = NULL;
579 static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
581 int initialised = ((aep_dso == NULL) ? 0 : 1);
583 case AEP_CMD_SO_PATH:
585 AEPHKerr(AEPHK_F_AEP_CTRL, ERR_R_PASSED_NULL_PARAMETER);
589 AEPHKerr(AEPHK_F_AEP_CTRL, AEPHK_R_ALREADY_LOADED);
592 return set_AEP_LIBNAME((const char *)p);
596 AEPHKerr(AEPHK_F_AEP_CTRL, AEPHK_R_CTRL_COMMAND_NOT_IMPLEMENTED);
600 static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
601 const BIGNUM *m, BN_CTX *ctx)
605 AEP_CONNECTION_HNDL hConnection;
608 r_len = BN_num_bits(m);
610 /* Perform in software if modulus is too large for hardware. */
612 if (r_len > max_key_len) {
613 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
614 return BN_mod_exp(r, a, p, m, ctx);
618 * Grab a connection from the pool
620 rv = aep_get_connection(&hConnection);
621 if (rv != AEP_R_OK) {
622 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_GET_HANDLE_FAILED);
623 return BN_mod_exp(r, a, p, m, ctx);
627 * To the card with the mod exp
629 rv = p_AEP_ModExp(hConnection, (void *)a, (void *)p, (void *)m, (void *)r,
632 if (rv != AEP_R_OK) {
633 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_MOD_EXP_FAILED);
634 rv = aep_close_connection(hConnection);
635 return BN_mod_exp(r, a, p, m, ctx);
639 * Return the connection to the pool
641 rv = aep_return_connection(hConnection);
642 if (rv != AEP_R_OK) {
643 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_RETURN_CONNECTION_FAILED);
652 # ifndef OPENSSL_NO_RSA
653 static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
654 const BIGNUM *q, const BIGNUM *dmp1,
655 const BIGNUM *dmq1, const BIGNUM *iqmp,
658 AEP_RV rv = AEP_R_OK;
659 AEP_CONNECTION_HNDL hConnection;
662 * Grab a connection from the pool
664 rv = aep_get_connection(&hConnection);
665 if (rv != AEP_R_OK) {
666 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT, AEPHK_R_GET_HANDLE_FAILED);
671 * To the card with the mod exp
673 rv = p_AEP_ModExpCrt(hConnection, (void *)a, (void *)p, (void *)q,
674 (void *)dmp1, (void *)dmq1, (void *)iqmp, (void *)r,
676 if (rv != AEP_R_OK) {
677 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT, AEPHK_R_MOD_EXP_CRT_FAILED);
678 rv = aep_close_connection(hConnection);
683 * Return the connection to the pool
685 rv = aep_return_connection(hConnection);
686 if (rv != AEP_R_OK) {
687 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT, AEPHK_R_RETURN_CONNECTION_FAILED);
697 static int aep_rand(unsigned char *buf, int len)
699 AEP_RV rv = AEP_R_OK;
700 AEP_CONNECTION_HNDL hConnection;
702 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
705 * Can the request be serviced with what's already in the buffer?
707 if (len <= rand_block_bytes) {
708 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
709 rand_block_bytes -= len;
710 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
713 * If not the get another block of random bytes
716 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
718 rv = aep_get_connection(&hConnection);
719 if (rv != AEP_R_OK) {
720 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_GET_HANDLE_FAILED);
724 if (len > RAND_BLK_SIZE) {
725 rv = p_AEP_GenRandom(hConnection, len, 2, buf, NULL);
726 if (rv != AEP_R_OK) {
727 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_GET_RANDOM_FAILED);
731 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
733 rv = p_AEP_GenRandom(hConnection, RAND_BLK_SIZE, 2,
734 &rand_block[0], NULL);
735 if (rv != AEP_R_OK) {
736 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_GET_RANDOM_FAILED);
741 rand_block_bytes = RAND_BLK_SIZE;
743 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
744 rand_block_bytes -= len;
746 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
749 rv = aep_return_connection(hConnection);
750 if (rv != AEP_R_OK) {
751 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_RETURN_CONNECTION_FAILED);
759 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
764 static int aep_rand_status(void)
770 # ifndef OPENSSL_NO_RSA
771 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
774 AEP_RV rv = AEP_R_OK;
777 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP, AEPHK_R_NOT_LOADED);
782 * See if we have all the necessary bits for a crt
784 if (rsa->q && rsa->dmp1 && rsa->dmq1 && rsa->iqmp) {
785 rv = aep_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1, rsa->dmq1,
788 if (rv == FAIL_TO_SW) {
789 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
790 to_return = (*meth->rsa_mod_exp) (r0, I, rsa, ctx);
792 } else if (rv != AEP_R_OK)
795 if (!rsa->d || !rsa->n) {
796 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP, AEPHK_R_MISSING_KEY_COMPONENTS);
800 rv = aep_mod_exp(r0, I, rsa->d, rsa->n, ctx);
813 # ifndef OPENSSL_NO_DSA
814 static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
815 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
816 BN_CTX *ctx, BN_MONT_CTX *in_mont)
822 /* let rr = a1 ^ p1 mod m */
823 if (!aep_mod_exp(rr, a1, p1, m, ctx))
825 /* let t = a2 ^ p2 mod m */
826 if (!aep_mod_exp(&t, a2, p2, m, ctx))
828 /* let rr = rr * t mod m */
829 if (!BN_mod_mul(rr, rr, &t, m, ctx))
837 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
838 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
841 return aep_mod_exp(r, a, p, m, ctx);
845 # ifndef OPENSSL_NO_RSA
846 /* This function is aliased to mod_exp (with the mont stuff dropped). */
847 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
848 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
850 return aep_mod_exp(r, a, p, m, ctx);
854 # ifndef OPENSSL_NO_DH
855 /* This function is aliased to mod_exp (with the dh and mont dropped). */
856 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
857 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
860 return aep_mod_exp(r, a, p, m, ctx);
864 static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR phConnection)
867 AEP_RV rv = AEP_R_OK;
870 * Get the current process id
874 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
879 * Check if this is the first time this is being called from the current
882 if (recorded_pid != curr_pid) {
884 * Remember our pid so we can check if we're in a new process
886 recorded_pid = curr_pid;
889 * Call Finalize to make sure we have not inherited some data from a
895 * Initialise the AEP API
897 rv = p_AEP_Initialize(NULL);
899 if (rv != AEP_R_OK) {
900 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION, AEPHK_R_INIT_FAILURE);
906 * Set the AEP big num call back functions
908 rv = p_AEP_SetBNCallBacks(&GetBigNumSize, &MakeAEPBigNum,
911 if (rv != AEP_R_OK) {
912 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,
913 AEPHK_R_SETBNCALLBACK_FAILURE);
919 * Reset the rand byte count
921 rand_block_bytes = 0;
925 * Init the structures
927 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
928 aep_app_conn_table[count].conn_state = NotConnected;
929 aep_app_conn_table[count].conn_hndl = 0;
935 rv = p_AEP_OpenConnection(phConnection);
937 if (rv != AEP_R_OK) {
938 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION, AEPHK_R_UNIT_FAILURE);
943 aep_app_conn_table[0].conn_state = InUse;
944 aep_app_conn_table[0].conn_hndl = *phConnection;
948 * Check the existing connections to see if we can find a free one
950 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
951 if (aep_app_conn_table[count].conn_state == Connected) {
952 aep_app_conn_table[count].conn_state = InUse;
953 *phConnection = aep_app_conn_table[count].conn_hndl;
958 * If no connections available, we're going to have to try to open a new
961 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
962 if (aep_app_conn_table[count].conn_state == NotConnected) {
966 rv = p_AEP_OpenConnection(phConnection);
968 if (rv != AEP_R_OK) {
969 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION, AEPHK_R_UNIT_FAILURE);
973 aep_app_conn_table[count].conn_state = InUse;
974 aep_app_conn_table[count].conn_hndl = *phConnection;
978 rv = AEP_R_GENERAL_ERROR;
980 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
984 static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection)
988 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
991 * Find the connection item that matches this connection handle
993 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
994 if (aep_app_conn_table[count].conn_hndl == hConnection) {
995 aep_app_conn_table[count].conn_state = Connected;
1000 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1005 static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection)
1008 AEP_RV rv = AEP_R_OK;
1010 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1013 * Find the connection item that matches this connection handle
1015 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
1016 if (aep_app_conn_table[count].conn_hndl == hConnection) {
1017 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1020 aep_app_conn_table[count].conn_state = NotConnected;
1021 aep_app_conn_table[count].conn_hndl = 0;
1027 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1031 static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use)
1034 AEP_RV rv = AEP_R_OK;
1037 if (use_engine_lock)
1038 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1039 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
1040 switch (aep_app_conn_table[count].conn_state) {
1042 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1045 aep_app_conn_table[count].conn_state = NotConnected;
1046 aep_app_conn_table[count].conn_hndl = 0;
1056 if (use_engine_lock)
1057 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1062 * BigNum call back functions, used to convert OpenSSL bignums into AEP
1063 * bignums. Note only 32bit Openssl build support
1066 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32 *BigNumSize)
1071 * Cast the ArbBigNum pointer to our BIGNUM struct
1073 bn = (BIGNUM *)ArbBigNum;
1075 # ifdef SIXTY_FOUR_BIT_LONG
1076 *BigNumSize = bn->top << 3;
1079 * Size of the bignum in bytes is equal to the bn->top (no of 32 bit
1080 * words) multiplies by 4
1082 *BigNumSize = bn->top << 2;
1088 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
1089 unsigned char *AEP_BigNum)
1093 # ifndef SIXTY_FOUR_BIT_LONG
1099 * Cast the ArbBigNum pointer to our BIGNUM struct
1101 bn = (BIGNUM *)ArbBigNum;
1103 # ifdef SIXTY_FOUR_BIT_LONG
1104 memcpy(AEP_BigNum, bn->d, BigNumSize);
1107 * Must copy data into a (monotone) least significant byte first format
1108 * performing endian conversion if necessary
1110 for (i = 0; i < bn->top; i++) {
1111 buf = (unsigned char *)&bn->d[i];
1113 *((AEP_U32 *)AEP_BigNum) = (AEP_U32)
1114 ((unsigned)buf[1] << 8 | buf[0]) |
1115 ((unsigned)buf[3] << 8 | buf[2]) << 16;
1125 * Turn an AEP Big Num back to a user big num
1127 static AEP_RV ConvertAEPBigNum(void *ArbBigNum, AEP_U32 BigNumSize,
1128 unsigned char *AEP_BigNum)
1131 # ifndef SIXTY_FOUR_BIT_LONG
1135 bn = (BIGNUM *)ArbBigNum;
1138 * Expand the result bn so that it can hold our big num. Size is in bits
1140 bn_expand(bn, (int)(BigNumSize << 3));
1142 # ifdef SIXTY_FOUR_BIT_LONG
1143 bn->top = BigNumSize >> 3;
1145 if ((BigNumSize & 7) != 0)
1148 memset(bn->d, 0, bn->top << 3);
1150 memcpy(bn->d, AEP_BigNum, BigNumSize);
1152 bn->top = BigNumSize >> 2;
1154 for (i = 0; i < bn->top; i++) {
1155 bn->d[i] = (AEP_U32)
1156 ((unsigned)AEP_BigNum[3] << 8 | AEP_BigNum[2]) << 16 |
1157 ((unsigned)AEP_BigNum[1] << 8 | AEP_BigNum[0]);
1165 # endif /* !OPENSSL_NO_HW_AEP */
1166 #endif /* !OPENSSL_NO_HW */