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>
88 #include <openssl/bn.h>
91 # ifndef OPENSSL_NO_HW_AEP
95 # include "vendor_defns/aep.h"
98 # define AEP_LIB_NAME "aep engine"
99 # define FAIL_TO_SW 0x10101010
101 # include "e_aep_err.c"
103 static int aep_init(ENGINE *e);
104 static int aep_finish(ENGINE *e);
105 static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void));
106 static int aep_destroy(ENGINE *e);
108 static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR hConnection);
109 static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection);
110 static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection);
111 static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use);
114 # ifndef OPENSSL_NO_RSA
115 static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
116 const BIGNUM *m, BN_CTX *ctx);
118 static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
119 const BIGNUM *q, const BIGNUM *dmp1,
120 const BIGNUM *dmq1, const BIGNUM *iqmp,
125 # ifndef OPENSSL_NO_RSA
126 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
130 /* This function is aliased to mod_exp (with the mont stuff dropped). */
131 # ifndef OPENSSL_NO_RSA
132 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
133 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
137 # ifndef OPENSSL_NO_DSA
138 static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
139 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
140 BN_CTX *ctx, BN_MONT_CTX *in_mont);
142 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
143 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
148 /* This function is aliased to mod_exp (with the DH and mont dropped). */
149 # ifndef OPENSSL_NO_DH
150 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
151 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
157 static int aep_rand(unsigned char *buf, int num);
158 static int aep_rand_status(void);
161 /* Bignum conversion stuff */
162 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32 *BigNumSize);
163 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
164 unsigned char *AEP_BigNum);
165 static AEP_RV ConvertAEPBigNum(void *ArbBigNum, AEP_U32 BigNumSize,
166 unsigned char *AEP_BigNum);
168 /* The definitions for control commands specific to this engine */
169 # define AEP_CMD_SO_PATH ENGINE_CMD_BASE
170 static const ENGINE_CMD_DEFN aep_cmd_defns[] = {
173 "Specifies the path to the 'aep' shared library",
174 ENGINE_CMD_FLAG_STRING},
178 # ifndef OPENSSL_NO_RSA
179 /* Our internal RSA_METHOD that we provide pointers to */
180 static RSA_METHOD aep_rsa = {
182 NULL, /* rsa_pub_encrypt */
183 NULL, /* rsa_pub_decrypt */
184 NULL, /* rsa_priv_encrypt */
185 NULL, /* rsa_priv_encrypt */
186 aep_rsa_mod_exp, /* rsa_mod_exp */
187 aep_mod_exp_mont, /* bn_mod_exp */
193 NULL, /* rsa_verify */
194 NULL /* rsa_keygen */
198 # ifndef OPENSSL_NO_DSA
199 /* Our internal DSA_METHOD that we provide pointers to */
200 static DSA_METHOD aep_dsa = {
202 NULL, /* dsa_do_sign */
203 NULL, /* dsa_sign_setup */
204 NULL, /* dsa_do_verify */
205 aep_dsa_mod_exp, /* dsa_mod_exp */
206 aep_mod_exp_dsa, /* bn_mod_exp */
211 NULL, /* dsa_paramgen */
212 NULL /* dsa_keygen */
216 # ifndef OPENSSL_NO_DH
217 /* Our internal DH_METHOD that we provide pointers to */
218 static DH_METHOD aep_dh = {
232 /* our internal RAND_method that we provide pointers to */
233 static RAND_METHOD aep_random = {
247 * Define an array of structures to hold connections
249 static AEP_CONNECTION_ENTRY aep_app_conn_table[MAX_PROCESS_CONNECTIONS];
252 * Used to determine if this is a new process
254 static pid_t recorded_pid = 0;
257 static AEP_U8 rand_block[RAND_BLK_SIZE];
258 static AEP_U32 rand_block_bytes = 0;
261 /* Constants used when creating the ENGINE */
262 static const char *engine_aep_id = "aep";
263 static const char *engine_aep_name = "Aep hardware engine support";
265 static int max_key_len = 2176;
268 * This internal function is used by ENGINE_aep() and possibly by the
269 * "dynamic" ENGINE support too
271 static int bind_aep(ENGINE *e)
273 # ifndef OPENSSL_NO_RSA
274 const RSA_METHOD *meth1;
276 # ifndef OPENSSL_NO_DSA
277 const DSA_METHOD *meth2;
279 # ifndef OPENSSL_NO_DH
280 const DH_METHOD *meth3;
283 if (!ENGINE_set_id(e, engine_aep_id) ||
284 !ENGINE_set_name(e, engine_aep_name) ||
285 # ifndef OPENSSL_NO_RSA
286 !ENGINE_set_RSA(e, &aep_rsa) ||
288 # ifndef OPENSSL_NO_DSA
289 !ENGINE_set_DSA(e, &aep_dsa) ||
291 # ifndef OPENSSL_NO_DH
292 !ENGINE_set_DH(e, &aep_dh) ||
295 !ENGINE_set_RAND(e, &aep_random) ||
297 !ENGINE_set_init_function(e, aep_init) ||
298 !ENGINE_set_destroy_function(e, aep_destroy) ||
299 !ENGINE_set_finish_function(e, aep_finish) ||
300 !ENGINE_set_ctrl_function(e, aep_ctrl) ||
301 !ENGINE_set_cmd_defns(e, aep_cmd_defns))
304 # ifndef OPENSSL_NO_RSA
306 * We know that the "PKCS1_SSLeay()" functions hook properly to the
307 * aep-specific mod_exp and mod_exp_crt so we use those functions. NB: We
308 * don't use ENGINE_openssl() or anything "more generic" because
309 * something like the RSAref code may not hook properly, and if you own
310 * one of these cards then you have the right to do RSA operations on it
313 meth1 = RSA_PKCS1_SSLeay();
314 aep_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
315 aep_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
316 aep_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
317 aep_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
320 # ifndef OPENSSL_NO_DSA
322 * Use the DSA_OpenSSL() method and just hook the mod_exp-ish bits.
324 meth2 = DSA_OpenSSL();
325 aep_dsa.dsa_do_sign = meth2->dsa_do_sign;
326 aep_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
327 aep_dsa.dsa_do_verify = meth2->dsa_do_verify;
329 aep_dsa = *DSA_get_default_method();
330 aep_dsa.dsa_mod_exp = aep_dsa_mod_exp;
331 aep_dsa.bn_mod_exp = aep_mod_exp_dsa;
334 # ifndef OPENSSL_NO_DH
335 /* Much the same for Diffie-Hellman */
336 meth3 = DH_OpenSSL();
337 aep_dh.generate_key = meth3->generate_key;
338 aep_dh.compute_key = meth3->compute_key;
339 aep_dh.bn_mod_exp = meth3->bn_mod_exp;
342 /* Ensure the aep error handling is set up */
343 ERR_load_AEPHK_strings();
348 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
349 static int bind_helper(ENGINE *e, const char *id)
351 if (id && (strcmp(id, engine_aep_id) != 0))
358 IMPLEMENT_DYNAMIC_CHECK_FN()
359 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
361 static ENGINE *engine_aep(void)
363 ENGINE *ret = ENGINE_new();
366 if (!bind_aep(ret)) {
373 void ENGINE_load_aep(void)
375 /* Copied from eng_[openssl|dyn].c */
376 ENGINE *toadd = engine_aep();
386 * This is a process-global DSO handle used for loading and unloading the Aep
387 * library. NB: This is only set (or unset) during an init() or finish() call
388 * (reference counts permitting) and they're operating with global locks, so
389 * this should be thread-safe implicitly.
391 static DSO *aep_dso = NULL;
394 * These are the static string constants for the DSO file name and the
395 * function symbol names to bind to.
397 static const char *AEP_LIBNAME = NULL;
398 static const char *get_AEP_LIBNAME(void)
405 static void free_AEP_LIBNAME(void)
408 OPENSSL_free((void *)AEP_LIBNAME);
412 static long set_AEP_LIBNAME(const char *name)
415 return ((AEP_LIBNAME = BUF_strdup(name)) != NULL ? 1 : 0);
418 static const char *AEP_F1 = "AEP_ModExp";
419 static const char *AEP_F2 = "AEP_ModExpCrt";
421 static const char *AEP_F3 = "AEP_GenRandom";
423 static const char *AEP_F4 = "AEP_Finalize";
424 static const char *AEP_F5 = "AEP_Initialize";
425 static const char *AEP_F6 = "AEP_OpenConnection";
426 static const char *AEP_F7 = "AEP_SetBNCallBacks";
427 static const char *AEP_F8 = "AEP_CloseConnection";
430 * These are the function pointers that are (un)set when the library has
431 * successfully (un)loaded.
433 static t_AEP_OpenConnection *p_AEP_OpenConnection = NULL;
434 static t_AEP_CloseConnection *p_AEP_CloseConnection = NULL;
435 static t_AEP_ModExp *p_AEP_ModExp = NULL;
436 static t_AEP_ModExpCrt *p_AEP_ModExpCrt = NULL;
438 static t_AEP_GenRandom *p_AEP_GenRandom = NULL;
440 static t_AEP_Initialize *p_AEP_Initialize = NULL;
441 static t_AEP_Finalize *p_AEP_Finalize = NULL;
442 static t_AEP_SetBNCallBacks *p_AEP_SetBNCallBacks = NULL;
444 /* (de)initialisation functions. */
445 static int aep_init(ENGINE *e)
453 t_AEP_Initialize *p5;
454 t_AEP_OpenConnection *p6;
455 t_AEP_SetBNCallBacks *p7;
456 t_AEP_CloseConnection *p8;
460 if (aep_dso != NULL) {
461 AEPHKerr(AEPHK_F_AEP_INIT, AEPHK_R_ALREADY_LOADED);
464 /* Attempt to load libaep.so. */
466 aep_dso = DSO_load(NULL, get_AEP_LIBNAME(), NULL, 0);
468 if (aep_dso == NULL) {
469 AEPHKerr(AEPHK_F_AEP_INIT, AEPHK_R_NOT_LOADED);
473 if (!(p1 = (t_AEP_ModExp *) DSO_bind_func(aep_dso, AEP_F1)) ||
474 !(p2 = (t_AEP_ModExpCrt *) DSO_bind_func(aep_dso, AEP_F2)) ||
476 !(p3 = (t_AEP_GenRandom *) DSO_bind_func(aep_dso, AEP_F3)) ||
478 !(p4 = (t_AEP_Finalize *) DSO_bind_func(aep_dso, AEP_F4)) ||
479 !(p5 = (t_AEP_Initialize *) DSO_bind_func(aep_dso, AEP_F5)) ||
480 !(p6 = (t_AEP_OpenConnection *) DSO_bind_func(aep_dso, AEP_F6)) ||
481 !(p7 = (t_AEP_SetBNCallBacks *) DSO_bind_func(aep_dso, AEP_F7)) ||
482 !(p8 = (t_AEP_CloseConnection *) DSO_bind_func(aep_dso, AEP_F8))) {
483 AEPHKerr(AEPHK_F_AEP_INIT, AEPHK_R_NOT_LOADED);
487 /* Copy the pointers */
490 p_AEP_ModExpCrt = p2;
492 p_AEP_GenRandom = p3;
495 p_AEP_Initialize = p5;
496 p_AEP_OpenConnection = p6;
497 p_AEP_SetBNCallBacks = p7;
498 p_AEP_CloseConnection = p8;
510 p_AEP_OpenConnection = NULL;
512 p_AEP_ModExpCrt = NULL;
514 p_AEP_GenRandom = NULL;
516 p_AEP_Initialize = NULL;
517 p_AEP_Finalize = NULL;
518 p_AEP_SetBNCallBacks = NULL;
519 p_AEP_CloseConnection = NULL;
524 /* Destructor (complements the "ENGINE_aep()" constructor) */
525 static int aep_destroy(ENGINE *e)
528 ERR_unload_AEPHK_strings();
532 static int aep_finish(ENGINE *e)
534 int to_return = 0, in_use;
537 if (aep_dso == NULL) {
538 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_NOT_LOADED);
542 rv = aep_close_all_connections(0, &in_use);
543 if (rv != AEP_R_OK) {
544 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_CLOSE_HANDLES_FAILED);
548 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_CONNECTIONS_IN_USE);
552 rv = p_AEP_Finalize();
553 if (rv != AEP_R_OK) {
554 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_FINALIZE_FAILED);
558 if (!DSO_free(aep_dso)) {
559 AEPHKerr(AEPHK_F_AEP_FINISH, AEPHK_R_UNIT_FAILURE);
564 p_AEP_CloseConnection = NULL;
565 p_AEP_OpenConnection = NULL;
567 p_AEP_ModExpCrt = NULL;
569 p_AEP_GenRandom = NULL;
571 p_AEP_Initialize = NULL;
572 p_AEP_Finalize = NULL;
573 p_AEP_SetBNCallBacks = NULL;
580 static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
582 int initialised = ((aep_dso == NULL) ? 0 : 1);
584 case AEP_CMD_SO_PATH:
586 AEPHKerr(AEPHK_F_AEP_CTRL, ERR_R_PASSED_NULL_PARAMETER);
590 AEPHKerr(AEPHK_F_AEP_CTRL, AEPHK_R_ALREADY_LOADED);
593 return set_AEP_LIBNAME((const char *)p);
597 AEPHKerr(AEPHK_F_AEP_CTRL, AEPHK_R_CTRL_COMMAND_NOT_IMPLEMENTED);
601 static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
602 const BIGNUM *m, BN_CTX *ctx)
606 AEP_CONNECTION_HNDL hConnection;
609 r_len = BN_num_bits(m);
611 /* Perform in software if modulus is too large for hardware. */
613 if (r_len > max_key_len) {
614 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
615 return BN_mod_exp(r, a, p, m, ctx);
619 * Grab a connection from the pool
621 rv = aep_get_connection(&hConnection);
622 if (rv != AEP_R_OK) {
623 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_GET_HANDLE_FAILED);
624 return BN_mod_exp(r, a, p, m, ctx);
628 * To the card with the mod exp
630 rv = p_AEP_ModExp(hConnection, (void *)a, (void *)p, (void *)m, (void *)r,
633 if (rv != AEP_R_OK) {
634 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_MOD_EXP_FAILED);
635 rv = aep_close_connection(hConnection);
636 return BN_mod_exp(r, a, p, m, ctx);
640 * Return the connection to the pool
642 rv = aep_return_connection(hConnection);
643 if (rv != AEP_R_OK) {
644 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_RETURN_CONNECTION_FAILED);
653 # ifndef OPENSSL_NO_RSA
654 static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
655 const BIGNUM *q, const BIGNUM *dmp1,
656 const BIGNUM *dmq1, const BIGNUM *iqmp,
659 AEP_RV rv = AEP_R_OK;
660 AEP_CONNECTION_HNDL hConnection;
663 * Grab a connection from the pool
665 rv = aep_get_connection(&hConnection);
666 if (rv != AEP_R_OK) {
667 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT, AEPHK_R_GET_HANDLE_FAILED);
672 * To the card with the mod exp
674 rv = p_AEP_ModExpCrt(hConnection, (void *)a, (void *)p, (void *)q,
675 (void *)dmp1, (void *)dmq1, (void *)iqmp, (void *)r,
677 if (rv != AEP_R_OK) {
678 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT, AEPHK_R_MOD_EXP_CRT_FAILED);
679 rv = aep_close_connection(hConnection);
684 * Return the connection to the pool
686 rv = aep_return_connection(hConnection);
687 if (rv != AEP_R_OK) {
688 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT, AEPHK_R_RETURN_CONNECTION_FAILED);
698 static int aep_rand(unsigned char *buf, int len)
700 AEP_RV rv = AEP_R_OK;
701 AEP_CONNECTION_HNDL hConnection;
703 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
706 * Can the request be serviced with what's already in the buffer?
708 if (len <= rand_block_bytes) {
709 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
710 rand_block_bytes -= len;
711 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
714 * If not the get another block of random bytes
717 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
719 rv = aep_get_connection(&hConnection);
720 if (rv != AEP_R_OK) {
721 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_GET_HANDLE_FAILED);
725 if (len > RAND_BLK_SIZE) {
726 rv = p_AEP_GenRandom(hConnection, len, 2, buf, NULL);
727 if (rv != AEP_R_OK) {
728 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_GET_RANDOM_FAILED);
732 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
734 rv = p_AEP_GenRandom(hConnection, RAND_BLK_SIZE, 2,
735 &rand_block[0], NULL);
736 if (rv != AEP_R_OK) {
737 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_GET_RANDOM_FAILED);
742 rand_block_bytes = RAND_BLK_SIZE;
744 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
745 rand_block_bytes -= len;
747 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
750 rv = aep_return_connection(hConnection);
751 if (rv != AEP_R_OK) {
752 AEPHKerr(AEPHK_F_AEP_RAND, AEPHK_R_RETURN_CONNECTION_FAILED);
760 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
765 static int aep_rand_status(void)
771 # ifndef OPENSSL_NO_RSA
772 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
775 AEP_RV rv = AEP_R_OK;
778 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP, AEPHK_R_NOT_LOADED);
783 * See if we have all the necessary bits for a crt
785 if (rsa->q && rsa->dmp1 && rsa->dmq1 && rsa->iqmp) {
786 rv = aep_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1, rsa->dmq1,
789 if (rv == FAIL_TO_SW) {
790 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
791 to_return = (*meth->rsa_mod_exp) (r0, I, rsa, ctx);
793 } else if (rv != AEP_R_OK)
796 if (!rsa->d || !rsa->n) {
797 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP, AEPHK_R_MISSING_KEY_COMPONENTS);
801 rv = aep_mod_exp(r0, I, rsa->d, rsa->n, ctx);
814 # ifndef OPENSSL_NO_DSA
815 static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
816 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
817 BN_CTX *ctx, BN_MONT_CTX *in_mont)
823 /* let rr = a1 ^ p1 mod m */
824 if (!aep_mod_exp(rr, a1, p1, m, ctx))
826 /* let t = a2 ^ p2 mod m */
827 if (!aep_mod_exp(&t, a2, p2, m, ctx))
829 /* let rr = rr * t mod m */
830 if (!BN_mod_mul(rr, rr, &t, m, ctx))
838 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
839 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
842 return aep_mod_exp(r, a, p, m, ctx);
846 # ifndef OPENSSL_NO_RSA
847 /* This function is aliased to mod_exp (with the mont stuff dropped). */
848 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
849 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
851 return aep_mod_exp(r, a, p, m, ctx);
855 # ifndef OPENSSL_NO_DH
856 /* This function is aliased to mod_exp (with the dh and mont dropped). */
857 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
858 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
861 return aep_mod_exp(r, a, p, m, ctx);
865 static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR phConnection)
868 AEP_RV rv = AEP_R_OK;
871 * Get the current process id
875 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
880 * Check if this is the first time this is being called from the current
883 if (recorded_pid != curr_pid) {
885 * Remember our pid so we can check if we're in a new process
887 recorded_pid = curr_pid;
890 * Call Finalize to make sure we have not inherited some data from a
896 * Initialise the AEP API
898 rv = p_AEP_Initialize(NULL);
900 if (rv != AEP_R_OK) {
901 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION, AEPHK_R_INIT_FAILURE);
907 * Set the AEP big num call back functions
909 rv = p_AEP_SetBNCallBacks(&GetBigNumSize, &MakeAEPBigNum,
912 if (rv != AEP_R_OK) {
913 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,
914 AEPHK_R_SETBNCALLBACK_FAILURE);
920 * Reset the rand byte count
922 rand_block_bytes = 0;
926 * Init the structures
928 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
929 aep_app_conn_table[count].conn_state = NotConnected;
930 aep_app_conn_table[count].conn_hndl = 0;
936 rv = p_AEP_OpenConnection(phConnection);
938 if (rv != AEP_R_OK) {
939 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION, AEPHK_R_UNIT_FAILURE);
944 aep_app_conn_table[0].conn_state = InUse;
945 aep_app_conn_table[0].conn_hndl = *phConnection;
949 * Check the existing connections to see if we can find a free one
951 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
952 if (aep_app_conn_table[count].conn_state == Connected) {
953 aep_app_conn_table[count].conn_state = InUse;
954 *phConnection = aep_app_conn_table[count].conn_hndl;
959 * If no connections available, we're going to have to try to open a new
962 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
963 if (aep_app_conn_table[count].conn_state == NotConnected) {
967 rv = p_AEP_OpenConnection(phConnection);
969 if (rv != AEP_R_OK) {
970 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION, AEPHK_R_UNIT_FAILURE);
974 aep_app_conn_table[count].conn_state = InUse;
975 aep_app_conn_table[count].conn_hndl = *phConnection;
979 rv = AEP_R_GENERAL_ERROR;
981 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
985 static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection)
989 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
992 * Find the connection item that matches this connection handle
994 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
995 if (aep_app_conn_table[count].conn_hndl == hConnection) {
996 aep_app_conn_table[count].conn_state = Connected;
1001 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1006 static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection)
1009 AEP_RV rv = AEP_R_OK;
1011 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1014 * Find the connection item that matches this connection handle
1016 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
1017 if (aep_app_conn_table[count].conn_hndl == hConnection) {
1018 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1021 aep_app_conn_table[count].conn_state = NotConnected;
1022 aep_app_conn_table[count].conn_hndl = 0;
1028 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1032 static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use)
1035 AEP_RV rv = AEP_R_OK;
1038 if (use_engine_lock)
1039 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1040 for (count = 0; count < MAX_PROCESS_CONNECTIONS; count++) {
1041 switch (aep_app_conn_table[count].conn_state) {
1043 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1046 aep_app_conn_table[count].conn_state = NotConnected;
1047 aep_app_conn_table[count].conn_hndl = 0;
1057 if (use_engine_lock)
1058 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1063 * BigNum call back functions, used to convert OpenSSL bignums into AEP
1064 * bignums. Note only 32bit Openssl build support
1067 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32 *BigNumSize)
1072 * Cast the ArbBigNum pointer to our BIGNUM struct
1074 bn = (BIGNUM *)ArbBigNum;
1076 # ifdef SIXTY_FOUR_BIT_LONG
1077 *BigNumSize = bn->top << 3;
1080 * Size of the bignum in bytes is equal to the bn->top (no of 32 bit
1081 * words) multiplies by 4
1083 *BigNumSize = bn->top << 2;
1089 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
1090 unsigned char *AEP_BigNum)
1094 # ifndef SIXTY_FOUR_BIT_LONG
1100 * Cast the ArbBigNum pointer to our BIGNUM struct
1102 bn = (BIGNUM *)ArbBigNum;
1104 # ifdef SIXTY_FOUR_BIT_LONG
1105 memcpy(AEP_BigNum, bn->d, BigNumSize);
1108 * Must copy data into a (monotone) least significant byte first format
1109 * performing endian conversion if necessary
1111 for (i = 0; i < bn->top; i++) {
1112 buf = (unsigned char *)&bn->d[i];
1114 *((AEP_U32 *)AEP_BigNum) = (AEP_U32)
1115 ((unsigned)buf[1] << 8 | buf[0]) |
1116 ((unsigned)buf[3] << 8 | buf[2]) << 16;
1126 * Turn an AEP Big Num back to a user big num
1128 static AEP_RV ConvertAEPBigNum(void *ArbBigNum, AEP_U32 BigNumSize,
1129 unsigned char *AEP_BigNum)
1132 # ifndef SIXTY_FOUR_BIT_LONG
1136 bn = (BIGNUM *)ArbBigNum;
1139 * Expand the result bn so that it can hold our big num. Size is in bits
1141 bn_expand(bn, (int)(BigNumSize << 3));
1143 # ifdef SIXTY_FOUR_BIT_LONG
1144 bn->top = BigNumSize >> 3;
1146 if ((BigNumSize & 7) != 0)
1149 memset(bn->d, 0, bn->top << 3);
1151 memcpy(bn->d, AEP_BigNum, BigNumSize);
1153 bn->top = BigNumSize >> 2;
1155 for (i = 0; i < bn->top; i++) {
1156 bn->d[i] = (AEP_U32)
1157 ((unsigned)AEP_BigNum[3] << 8 | AEP_BigNum[2]) << 16 |
1158 ((unsigned)AEP_BigNum[1] << 8 | AEP_BigNum[0]);
1166 # endif /* !OPENSSL_NO_HW_AEP */
1167 #endif /* !OPENSSL_NO_HW */