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__)
61 # include <sys/types.h>
68 #if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB)
69 # define getpid GetThreadID
70 extern int GetThreadID(void);
73 #include <openssl/crypto.h>
74 #include <openssl/dso.h>
75 #include <openssl/engine.h>
76 #include <openssl/buffer.h>
77 #ifndef OPENSSL_NO_RSA
78 # include <openssl/rsa.h>
80 #ifndef OPENSSL_NO_DSA
81 # include <openssl/dsa.h>
84 # include <openssl/dh.h>
86 #include <openssl/bn.h>
89 # ifndef OPENSSL_NO_HW_AEP
93 # include "vendor_defns/aep.h"
96 # define AEP_LIB_NAME "aep engine"
97 # define FAIL_TO_SW 0x10101010
99 # include "e_aep_err.c"
101 static int aep_init(ENGINE *e);
102 static int aep_finish(ENGINE *e);
103 static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void));
104 static int aep_destroy(ENGINE *e);
106 static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR hConnection);
107 static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection);
108 static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection);
109 static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use);
112 # ifndef OPENSSL_NO_RSA
113 static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
114 const BIGNUM *m, BN_CTX *ctx);
116 static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
117 const BIGNUM *q, const BIGNUM *dmp1,
118 const BIGNUM *dmq1, const BIGNUM *iqmp,
123 # ifndef OPENSSL_NO_RSA
124 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
128 /* This function is aliased to mod_exp (with the mont stuff dropped). */
129 # ifndef OPENSSL_NO_RSA
130 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
131 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
135 # ifndef OPENSSL_NO_DSA
136 static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
137 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
138 BN_CTX *ctx, BN_MONT_CTX *in_mont);
140 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
141 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
146 /* This function is aliased to mod_exp (with the DH and mont dropped). */
147 # ifndef OPENSSL_NO_DH
148 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
149 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
155 static int aep_rand(unsigned char *buf, int num);
156 static int aep_rand_status(void);
159 /* Bignum conversion stuff */
160 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32 *BigNumSize);
161 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
162 unsigned char *AEP_BigNum);
163 static AEP_RV ConvertAEPBigNum(void *ArbBigNum, AEP_U32 BigNumSize,
164 unsigned char *AEP_BigNum);
166 /* The definitions for control commands specific to this engine */
167 # define AEP_CMD_SO_PATH ENGINE_CMD_BASE
168 static const ENGINE_CMD_DEFN aep_cmd_defns[] = {
171 "Specifies the path to the 'aep' shared library",
172 ENGINE_CMD_FLAG_STRING},
176 # ifndef OPENSSL_NO_RSA
177 /* Our internal RSA_METHOD that we provide pointers to */
178 static RSA_METHOD aep_rsa = {
180 NULL, /* rsa_pub_encrypt */
181 NULL, /* rsa_pub_decrypt */
182 NULL, /* rsa_priv_encrypt */
183 NULL, /* rsa_priv_encrypt */
184 aep_rsa_mod_exp, /* rsa_mod_exp */
185 aep_mod_exp_mont, /* bn_mod_exp */
191 NULL, /* rsa_verify */
192 NULL /* rsa_keygen */
196 # ifndef OPENSSL_NO_DSA
197 /* Our internal DSA_METHOD that we provide pointers to */
198 static DSA_METHOD aep_dsa = {
200 NULL, /* dsa_do_sign */
201 NULL, /* dsa_sign_setup */
202 NULL, /* dsa_do_verify */
203 aep_dsa_mod_exp, /* dsa_mod_exp */
204 aep_mod_exp_dsa, /* bn_mod_exp */
209 NULL, /* dsa_paramgen */
210 NULL /* dsa_keygen */
214 # ifndef OPENSSL_NO_DH
215 /* Our internal DH_METHOD that we provide pointers to */
216 static DH_METHOD aep_dh = {
230 /* our internal RAND_method that we provide pointers to */
231 static RAND_METHOD aep_random = {
245 * Define an array of structures to hold connections
247 static AEP_CONNECTION_ENTRY aep_app_conn_table[MAX_PROCESS_CONNECTIONS];
250 * Used to determine if this is a new process
252 static pid_t recorded_pid = 0;
255 static AEP_U8 rand_block[RAND_BLK_SIZE];
256 static AEP_U32 rand_block_bytes = 0;
259 /* Constants used when creating the ENGINE */
260 static const char *engine_aep_id = "aep";
261 static const char *engine_aep_name = "Aep hardware engine support";
263 static int max_key_len = 2176;
266 * This internal function is used by ENGINE_aep() and possibly by the
267 * "dynamic" ENGINE support too
269 static int bind_aep(ENGINE *e)
271 # ifndef OPENSSL_NO_RSA
272 const RSA_METHOD *meth1;
274 # ifndef OPENSSL_NO_DSA
275 const DSA_METHOD *meth2;
277 # ifndef OPENSSL_NO_DH
278 const DH_METHOD *meth3;
281 if (!ENGINE_set_id(e, engine_aep_id) ||
282 !ENGINE_set_name(e, engine_aep_name) ||
283 # ifndef OPENSSL_NO_RSA
284 !ENGINE_set_RSA(e, &aep_rsa) ||
286 # ifndef OPENSSL_NO_DSA
287 !ENGINE_set_DSA(e, &aep_dsa) ||
289 # ifndef OPENSSL_NO_DH
290 !ENGINE_set_DH(e, &aep_dh) ||
293 !ENGINE_set_RAND(e, &aep_random) ||
295 !ENGINE_set_init_function(e, aep_init) ||
296 !ENGINE_set_destroy_function(e, aep_destroy) ||
297 !ENGINE_set_finish_function(e, aep_finish) ||
298 !ENGINE_set_ctrl_function(e, aep_ctrl) ||
299 !ENGINE_set_cmd_defns(e, aep_cmd_defns))
302 # ifndef OPENSSL_NO_RSA
304 * We know that the "PKCS1_SSLeay()" functions hook properly to the
305 * aep-specific mod_exp and mod_exp_crt so we use those functions. NB: We
306 * don't use ENGINE_openssl() or anything "more generic" because
307 * something like the RSAref code may not hook properly, and if you own
308 * one of these cards then you have the right to do RSA operations on it
311 meth1 = RSA_PKCS1_SSLeay();
312 aep_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
313 aep_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
314 aep_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
315 aep_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
318 # ifndef OPENSSL_NO_DSA
320 * Use the DSA_OpenSSL() method and just hook the mod_exp-ish bits.
322 meth2 = DSA_OpenSSL();
323 aep_dsa.dsa_do_sign = meth2->dsa_do_sign;
324 aep_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
325 aep_dsa.dsa_do_verify = meth2->dsa_do_verify;
327 aep_dsa = *DSA_get_default_method();
328 aep_dsa.dsa_mod_exp = aep_dsa_mod_exp;
329 aep_dsa.bn_mod_exp = aep_mod_exp_dsa;
332 # ifndef OPENSSL_NO_DH
333 /* Much the same for Diffie-Hellman */
334 meth3 = DH_OpenSSL();
335 aep_dh.generate_key = meth3->generate_key;
336 aep_dh.compute_key = meth3->compute_key;
337 aep_dh.bn_mod_exp = meth3->bn_mod_exp;
340 /* Ensure the aep error handling is set up */
341 ERR_load_AEPHK_strings();
346 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
347 static int bind_helper(ENGINE *e, const char *id)
349 if (id && (strcmp(id, engine_aep_id) != 0))
356 IMPLEMENT_DYNAMIC_CHECK_FN()
357 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
359 static ENGINE *engine_aep(void)
361 ENGINE *ret = ENGINE_new();
364 if (!bind_aep(ret)) {
371 void ENGINE_load_aep(void)
373 /* Copied from eng_[openssl|dyn].c */
374 ENGINE *toadd = engine_aep();
384 * This is a process-global DSO handle used for loading and unloading the Aep
385 * library. NB: This is only set (or unset) during an init() or finish() call
386 * (reference counts permitting) and they're operating with global locks, so
387 * this should be thread-safe implicitly.
389 static DSO *aep_dso = NULL;
392 * These are the static string constants for the DSO file name and the
393 * function symbol names to bind to.
395 static const char *AEP_LIBNAME = NULL;
396 static const char *get_AEP_LIBNAME(void)
403 static void free_AEP_LIBNAME(void)
406 OPENSSL_free((void *)AEP_LIBNAME);
410 static long set_AEP_LIBNAME(const char *name)
413 return ((AEP_LIBNAME = BUF_strdup(name)) != NULL ? 1 : 0);
416 static const char *AEP_F1 = "AEP_ModExp";
417 static const char *AEP_F2 = "AEP_ModExpCrt";
419 static const char *AEP_F3 = "AEP_GenRandom";
421 static const char *AEP_F4 = "AEP_Finalize";
422 static const char *AEP_F5 = "AEP_Initialize";
423 static const char *AEP_F6 = "AEP_OpenConnection";
424 static const char *AEP_F7 = "AEP_SetBNCallBacks";
425 static const char *AEP_F8 = "AEP_CloseConnection";
428 * These are the function pointers that are (un)set when the library has
429 * successfully (un)loaded.
431 static t_AEP_OpenConnection *p_AEP_OpenConnection = NULL;
432 static t_AEP_CloseConnection *p_AEP_CloseConnection = NULL;
433 static t_AEP_ModExp *p_AEP_ModExp = NULL;
434 static t_AEP_ModExpCrt *p_AEP_ModExpCrt = NULL;
436 static t_AEP_GenRandom *p_AEP_GenRandom = NULL;
438 static t_AEP_Initialize *p_AEP_Initialize = NULL;
439 static t_AEP_Finalize *p_AEP_Finalize = NULL;
440 static t_AEP_SetBNCallBacks *p_AEP_SetBNCallBacks = NULL;
442 /* (de)initialisation functions. */
443 static int aep_init(ENGINE *e)
451 t_AEP_Initialize *p5;
452 t_AEP_OpenConnection *p6;
453 t_AEP_SetBNCallBacks *p7;
454 t_AEP_CloseConnection *p8;
458 if (aep_dso != NULL) {
459 AEPHKerr(AEPHK_F_AEP_INIT, AEPHK_R_ALREADY_LOADED);
462 /* Attempt to load libaep.so. */
464 aep_dso = DSO_load(NULL, get_AEP_LIBNAME(), NULL, 0);
466 if (aep_dso == NULL) {
467 AEPHKerr(AEPHK_F_AEP_INIT, AEPHK_R_NOT_LOADED);
471 if (!(p1 = (t_AEP_ModExp *) DSO_bind_func(aep_dso, AEP_F1)) ||
472 !(p2 = (t_AEP_ModExpCrt *) DSO_bind_func(aep_dso, AEP_F2)) ||
474 !(p3 = (t_AEP_GenRandom *) DSO_bind_func(aep_dso, AEP_F3)) ||
476 !(p4 = (t_AEP_Finalize *) DSO_bind_func(aep_dso, AEP_F4)) ||
477 !(p5 = (t_AEP_Initialize *) DSO_bind_func(aep_dso, AEP_F5)) ||
478 !(p6 = (t_AEP_OpenConnection *) DSO_bind_func(aep_dso, AEP_F6)) ||
479 !(p7 = (t_AEP_SetBNCallBacks *) DSO_bind_func(aep_dso, AEP_F7)) ||
480 !(p8 = (t_AEP_CloseConnection *) DSO_bind_func(aep_dso, AEP_F8))) {
481 AEPHKerr(AEPHK_F_AEP_INIT, AEPHK_R_NOT_LOADED);
485 /* Copy the pointers */
488 p_AEP_ModExpCrt = p2;
490 p_AEP_GenRandom = p3;
493 p_AEP_Initialize = p5;
494 p_AEP_OpenConnection = p6;
495 p_AEP_SetBNCallBacks = p7;
496 p_AEP_CloseConnection = p8;
508 p_AEP_OpenConnection = NULL;
510 p_AEP_ModExpCrt = NULL;
512 p_AEP_GenRandom = NULL;
514 p_AEP_Initialize = NULL;
515 p_AEP_Finalize = NULL;
516 p_AEP_SetBNCallBacks = NULL;
517 p_AEP_CloseConnection = NULL;
522 /* Destructor (complements the "ENGINE_aep()" constructor) */
523 static int aep_destroy(ENGINE *e)
526 ERR_unload_AEPHK_strings();
530 static int aep_finish(ENGINE *e)
532 int to_return = 0, in_use;
535 if (aep_dso == NULL) {
536 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_NOT_LOADED);
540 rv = aep_close_all_connections(0, &in_use);
541 if (rv != AEP_R_OK) {
542 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_CLOSE_HANDLES_FAILED);
546 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_CONNECTIONS_IN_USE);
550 rv = p_AEP_Finalize();
551 if (rv != AEP_R_OK) {
552 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_FINALIZE_FAILED);
556 if (!DSO_free(aep_dso)) {
557 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_UNIT_FAILURE);
562 p_AEP_CloseConnection = NULL;
563 p_AEP_OpenConnection = NULL;
565 p_AEP_ModExpCrt = NULL;
567 p_AEP_GenRandom = NULL;
569 p_AEP_Initialize = NULL;
570 p_AEP_Finalize = NULL;
571 p_AEP_SetBNCallBacks = NULL;
578 static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
580 int initialised = ((aep_dso == NULL) ? 0 : 1);
582 case AEP_CMD_SO_PATH:
584 AEPHKerr(AEPHK_F_AEP_CTRL, ERR_R_PASSED_NULL_PARAMETER);
588 AEPHKerr(AEPHK_F_AEP_CTRL, AEPHK_R_ALREADY_LOADED);
591 return set_AEP_LIBNAME((const char *)p);
595 AEPHKerr(AEPHK_F_AEP_CTRL, AEPHK_R_CTRL_COMMAND_NOT_IMPLEMENTED);
599 static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
600 const BIGNUM *m, BN_CTX *ctx)
604 AEP_CONNECTION_HNDL hConnection;
607 r_len = BN_num_bits(m);
609 /* Perform in software if modulus is too large for hardware. */
611 if (r_len > max_key_len) {
612 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
613 return BN_mod_exp(r, a, p, m, ctx);
617 * Grab a connection from the pool
619 rv = aep_get_connection(&hConnection);
620 if (rv != AEP_R_OK) {
621 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_GET_HANDLE_FAILED);
622 return BN_mod_exp(r, a, p, m, ctx);
626 * To the card with the mod exp
628 rv = p_AEP_ModExp(hConnection, (void *)a, (void *)p, (void *)m, (void *)r,
631 if (rv != AEP_R_OK) {
632 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_MOD_EXP_FAILED);
633 rv = aep_close_connection(hConnection);
634 return BN_mod_exp(r, a, p, m, ctx);
638 * Return the connection to the pool
640 rv = aep_return_connection(hConnection);
641 if (rv != AEP_R_OK) {
642 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_RETURN_CONNECTION_FAILED);
651 # ifndef OPENSSL_NO_RSA
652 static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
653 const BIGNUM *q, const BIGNUM *dmp1,
654 const BIGNUM *dmq1, const BIGNUM *iqmp,
657 AEP_RV rv = AEP_R_OK;
658 AEP_CONNECTION_HNDL hConnection;
661 * Grab a connection from the pool
663 rv = aep_get_connection(&hConnection);
664 if (rv != AEP_R_OK) {
665 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT, AEPHK_R_GET_HANDLE_FAILED);
670 * To the card with the mod exp
672 rv = p_AEP_ModExpCrt(hConnection, (void *)a, (void *)p, (void *)q,
673 (void *)dmp1, (void *)dmq1, (void *)iqmp, (void *)r,
675 if (rv != AEP_R_OK) {
676 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT, AEPHK_R_MOD_EXP_CRT_FAILED);
677 rv = aep_close_connection(hConnection);
682 * Return the connection to the pool
684 rv = aep_return_connection(hConnection);
685 if (rv != AEP_R_OK) {
686 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT, AEPHK_R_RETURN_CONNECTION_FAILED);
696 static int aep_rand(unsigned char *buf, int len)
698 AEP_RV rv = AEP_R_OK;
699 AEP_CONNECTION_HNDL hConnection;
701 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
704 * Can the request be serviced with what's already in the buffer?
706 if (len <= rand_block_bytes) {
707 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
708 rand_block_bytes -= len;
709 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
712 * If not the get another block of random bytes
715 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
717 rv = aep_get_connection(&hConnection);
718 if (rv != AEP_R_OK) {
719 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_GET_HANDLE_FAILED);
723 if (len > RAND_BLK_SIZE) {
724 rv = p_AEP_GenRandom(hConnection, len, 2, buf, NULL);
725 if (rv != AEP_R_OK) {
726 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_GET_RANDOM_FAILED);
730 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
732 rv = p_AEP_GenRandom(hConnection, RAND_BLK_SIZE, 2,
733 &rand_block[0], NULL);
734 if (rv != AEP_R_OK) {
735 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_GET_RANDOM_FAILED);
740 rand_block_bytes = RAND_BLK_SIZE;
742 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
743 rand_block_bytes -= len;
745 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
748 rv = aep_return_connection(hConnection);
749 if (rv != AEP_R_OK) {
750 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_RETURN_CONNECTION_FAILED);
758 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
763 static int aep_rand_status(void)
769 # ifndef OPENSSL_NO_RSA
770 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
773 AEP_RV rv = AEP_R_OK;
776 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP, AEPHK_R_NOT_LOADED);
781 * See if we have all the necessary bits for a crt
783 if (rsa->q && rsa->dmp1 && rsa->dmq1 && rsa->iqmp) {
784 rv = aep_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1, rsa->dmq1,
787 if (rv == FAIL_TO_SW) {
788 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
789 to_return = (*meth->rsa_mod_exp) (r0, I, rsa, ctx);
791 } else if (rv != AEP_R_OK)
794 if (!rsa->d || !rsa->n) {
795 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP, AEPHK_R_MISSING_KEY_COMPONENTS);
799 rv = aep_mod_exp(r0, I, rsa->d, rsa->n, ctx);
812 # ifndef OPENSSL_NO_DSA
813 static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
814 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
815 BN_CTX *ctx, BN_MONT_CTX *in_mont)
821 /* let rr = a1 ^ p1 mod m */
822 if (!aep_mod_exp(rr, a1, p1, m, ctx))
824 /* let t = a2 ^ p2 mod m */
825 if (!aep_mod_exp(&t, a2, p2, m, ctx))
827 /* let rr = rr * t mod m */
828 if (!BN_mod_mul(rr, rr, &t, m, ctx))
836 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
837 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
840 return aep_mod_exp(r, a, p, m, ctx);
844 # ifndef OPENSSL_NO_RSA
845 /* This function is aliased to mod_exp (with the mont stuff dropped). */
846 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
847 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
849 return aep_mod_exp(r, a, p, m, ctx);
853 # ifndef OPENSSL_NO_DH
854 /* This function is aliased to mod_exp (with the dh and mont dropped). */
855 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
856 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
859 return aep_mod_exp(r, a, p, m, ctx);
863 static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR phConnection)
866 AEP_RV rv = AEP_R_OK;
869 * Get the current process id
873 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
876 curr_pid = GetThreadID();
877 # elif defined(_WIN32)
878 curr_pid = _getpid();
884 * Check if this is the first time this is being called from the current
887 if (recorded_pid != curr_pid) {
889 * Remember our pid so we can check if we're in a new process
891 recorded_pid = curr_pid;
894 * Call Finalize to make sure we have not inherited some data from a
900 * Initialise the AEP API
902 rv = p_AEP_Initialize(NULL);
904 if (rv != AEP_R_OK) {
905 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION, AEPHK_R_INIT_FAILURE);
911 * Set the AEP big num call back functions
913 rv = p_AEP_SetBNCallBacks(&GetBigNumSize, &MakeAEPBigNum,
916 if (rv != AEP_R_OK) {
917 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,
918 AEPHK_R_SETBNCALLBACK_FAILURE);
924 * Reset the rand byte count
926 rand_block_bytes = 0;
930 * Init the structures
932 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
933 aep_app_conn_table[count].conn_state = NotConnected;
934 aep_app_conn_table[count].conn_hndl = 0;
940 rv = p_AEP_OpenConnection(phConnection);
942 if (rv != AEP_R_OK) {
943 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION, AEPHK_R_UNIT_FAILURE);
948 aep_app_conn_table[0].conn_state = InUse;
949 aep_app_conn_table[0].conn_hndl = *phConnection;
953 * Check the existing connections to see if we can find a free one
955 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
956 if (aep_app_conn_table[count].conn_state == Connected) {
957 aep_app_conn_table[count].conn_state = InUse;
958 *phConnection = aep_app_conn_table[count].conn_hndl;
963 * If no connections available, we're going to have to try to open a new
966 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
967 if (aep_app_conn_table[count].conn_state == NotConnected) {
971 rv = p_AEP_OpenConnection(phConnection);
973 if (rv != AEP_R_OK) {
974 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION, AEPHK_R_UNIT_FAILURE);
978 aep_app_conn_table[count].conn_state = InUse;
979 aep_app_conn_table[count].conn_hndl = *phConnection;
983 rv = AEP_R_GENERAL_ERROR;
985 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
989 static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection)
993 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
996 * Find the connection item that matches this connection handle
998 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
999 if (aep_app_conn_table[count].conn_hndl == hConnection) {
1000 aep_app_conn_table[count].conn_state = Connected;
1005 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1010 static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection)
1013 AEP_RV rv = AEP_R_OK;
1015 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1018 * Find the connection item that matches this connection handle
1020 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
1021 if (aep_app_conn_table[count].conn_hndl == hConnection) {
1022 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1025 aep_app_conn_table[count].conn_state = NotConnected;
1026 aep_app_conn_table[count].conn_hndl = 0;
1032 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1036 static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use)
1039 AEP_RV rv = AEP_R_OK;
1042 if (use_engine_lock)
1043 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1044 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
1045 switch (aep_app_conn_table[count].conn_state) {
1047 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1050 aep_app_conn_table[count].conn_state = NotConnected;
1051 aep_app_conn_table[count].conn_hndl = 0;
1061 if (use_engine_lock)
1062 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1067 * BigNum call back functions, used to convert OpenSSL bignums into AEP
1068 * bignums. Note only 32bit Openssl build support
1071 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32 *BigNumSize)
1076 * Cast the ArbBigNum pointer to our BIGNUM struct
1078 bn = (BIGNUM *)ArbBigNum;
1080 # ifdef SIXTY_FOUR_BIT_LONG
1081 *BigNumSize = bn->top << 3;
1084 * Size of the bignum in bytes is equal to the bn->top (no of 32 bit
1085 * words) multiplies by 4
1087 *BigNumSize = bn->top << 2;
1093 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
1094 unsigned char *AEP_BigNum)
1098 # ifndef SIXTY_FOUR_BIT_LONG
1104 * Cast the ArbBigNum pointer to our BIGNUM struct
1106 bn = (BIGNUM *)ArbBigNum;
1108 # ifdef SIXTY_FOUR_BIT_LONG
1109 memcpy(AEP_BigNum, bn->d, BigNumSize);
1112 * Must copy data into a (monotone) least significant byte first format
1113 * performing endian conversion if necessary
1115 for (i = 0; i < bn->top; i++) {
1116 buf = (unsigned char *)&bn->d[i];
1118 *((AEP_U32 *)AEP_BigNum) = (AEP_U32)
1119 ((unsigned)buf[1] << 8 | buf[0]) |
1120 ((unsigned)buf[3] << 8 | buf[2]) << 16;
1130 * Turn an AEP Big Num back to a user big num
1132 static AEP_RV ConvertAEPBigNum(void *ArbBigNum, AEP_U32 BigNumSize,
1133 unsigned char *AEP_BigNum)
1136 # ifndef SIXTY_FOUR_BIT_LONG
1140 bn = (BIGNUM *)ArbBigNum;
1143 * Expand the result bn so that it can hold our big num. Size is in bits
1145 bn_expand(bn, (int)(BigNumSize << 3));
1147 # ifdef SIXTY_FOUR_BIT_LONG
1148 bn->top = BigNumSize >> 3;
1150 if ((BigNumSize & 7) != 0)
1153 memset(bn->d, 0, bn->top << 3);
1155 memcpy(bn->d, AEP_BigNum, BigNumSize);
1157 bn->top = BigNumSize >> 2;
1159 for (i = 0; i < bn->top; i++) {
1160 bn->d[i] = (AEP_U32)
1161 ((unsigned)AEP_BigNum[3] << 8 | AEP_BigNum[2]) << 16 |
1162 ((unsigned)AEP_BigNum[1] << 8 | AEP_BigNum[0]);
1170 # endif /* !OPENSSL_NO_HW_AEP */
1171 #endif /* !OPENSSL_NO_HW */