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);
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,const BIGNUM *dmq1,
118 const BIGNUM *iqmp, BN_CTX *ctx);
122 #ifndef OPENSSL_NO_RSA
123 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
126 /* This function is aliased to mod_exp (with the mont stuff dropped). */
127 #ifndef OPENSSL_NO_RSA
128 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
129 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
133 #ifndef OPENSSL_NO_DSA
134 static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
135 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
136 BN_CTX *ctx, BN_MONT_CTX *in_mont);
138 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
139 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
144 /* This function is aliased to mod_exp (with the DH and mont dropped). */
145 #ifndef OPENSSL_NO_DH
146 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
147 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
152 static int aep_rand(unsigned char *buf, int num);
153 static int aep_rand_status(void);
156 /* Bignum conversion stuff */
157 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize);
158 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
159 unsigned char* AEP_BigNum);
160 static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
161 unsigned char* AEP_BigNum);
163 /* The definitions for control commands specific to this engine */
164 #define AEP_CMD_SO_PATH ENGINE_CMD_BASE
165 static const ENGINE_CMD_DEFN aep_cmd_defns[] =
169 "Specifies the path to the 'aep' shared library",
170 ENGINE_CMD_FLAG_STRING
175 #ifndef OPENSSL_NO_RSA
176 /* Our internal RSA_METHOD that we provide pointers to */
177 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*/
196 #ifndef OPENSSL_NO_DSA
197 /* Our internal DSA_METHOD that we provide pointers to */
198 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 =
232 /* our internal RAND_method that we provide pointers to */
233 static RAND_METHOD aep_random =
235 /*"AEP RAND method", */
245 /*Define an array of structures to hold connections*/
246 static AEP_CONNECTION_ENTRY aep_app_conn_table[MAX_PROCESS_CONNECTIONS];
248 /*Used to determine if this is a new process*/
249 static pid_t recorded_pid = 0;
252 static AEP_U8 rand_block[RAND_BLK_SIZE];
253 static AEP_U32 rand_block_bytes = 0;
256 /* Constants used when creating the ENGINE */
257 static const char *engine_aep_id = "aep";
258 static const char *engine_aep_name = "Aep hardware engine support";
260 static int max_key_len = 2176;
263 /* This internal function is used by ENGINE_aep() and possibly by the
264 * "dynamic" ENGINE support too */
265 static int bind_aep(ENGINE *e)
267 #ifndef OPENSSL_NO_RSA
268 const RSA_METHOD *meth1;
270 #ifndef OPENSSL_NO_DSA
271 const DSA_METHOD *meth2;
273 #ifndef OPENSSL_NO_DH
274 const DH_METHOD *meth3;
277 if(!ENGINE_set_id(e, engine_aep_id) ||
278 !ENGINE_set_name(e, engine_aep_name) ||
279 #ifndef OPENSSL_NO_RSA
280 !ENGINE_set_RSA(e, &aep_rsa) ||
282 #ifndef OPENSSL_NO_DSA
283 !ENGINE_set_DSA(e, &aep_dsa) ||
285 #ifndef OPENSSL_NO_DH
286 !ENGINE_set_DH(e, &aep_dh) ||
289 !ENGINE_set_RAND(e, &aep_random) ||
291 !ENGINE_set_init_function(e, aep_init) ||
292 !ENGINE_set_destroy_function(e, aep_destroy) ||
293 !ENGINE_set_finish_function(e, aep_finish) ||
294 !ENGINE_set_ctrl_function(e, aep_ctrl) ||
295 !ENGINE_set_cmd_defns(e, aep_cmd_defns))
298 #ifndef OPENSSL_NO_RSA
299 /* We know that the "PKCS1_SSLeay()" functions hook properly
300 * to the aep-specific mod_exp and mod_exp_crt so we use
301 * those functions. NB: We don't use ENGINE_openssl() or
302 * anything "more generic" because something like the RSAref
303 * code may not hook properly, and if you own one of these
304 * cards then you have the right to do RSA operations on it
306 meth1 = RSA_PKCS1_SSLeay();
307 aep_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
308 aep_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
309 aep_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
310 aep_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
314 #ifndef OPENSSL_NO_DSA
315 /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
317 meth2 = DSA_OpenSSL();
318 aep_dsa.dsa_do_sign = meth2->dsa_do_sign;
319 aep_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
320 aep_dsa.dsa_do_verify = meth2->dsa_do_verify;
322 aep_dsa = *DSA_get_default_method();
323 aep_dsa.dsa_mod_exp = aep_dsa_mod_exp;
324 aep_dsa.bn_mod_exp = aep_mod_exp_dsa;
327 #ifndef OPENSSL_NO_DH
328 /* Much the same for Diffie-Hellman */
329 meth3 = DH_OpenSSL();
330 aep_dh.generate_key = meth3->generate_key;
331 aep_dh.compute_key = meth3->compute_key;
332 aep_dh.bn_mod_exp = meth3->bn_mod_exp;
335 /* Ensure the aep error handling is set up */
336 ERR_load_AEPHK_strings();
341 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
342 static int bind_helper(ENGINE *e, const char *id)
344 if(id && (strcmp(id, engine_aep_id) != 0))
350 IMPLEMENT_DYNAMIC_CHECK_FN()
351 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
353 static ENGINE *engine_aep(void)
355 ENGINE *ret = ENGINE_new();
366 void ENGINE_load_aep(void)
368 /* Copied from eng_[openssl|dyn].c */
369 ENGINE *toadd = engine_aep();
377 /* This is a process-global DSO handle used for loading and unloading
378 * the Aep library. NB: This is only set (or unset) during an
379 * init() or finish() call (reference counts permitting) and they're
380 * operating with global locks, so this should be thread-safe
382 static DSO *aep_dso = NULL;
384 /* These are the static string constants for the DSO file name and the function
385 * symbol names to bind to.
387 static const char *AEP_LIBNAME = NULL;
388 static const char *get_AEP_LIBNAME(void)
394 static void free_AEP_LIBNAME(void)
397 OPENSSL_free((void*)AEP_LIBNAME);
400 static long set_AEP_LIBNAME(const char *name)
403 return ((AEP_LIBNAME = BUF_strdup(name)) != NULL ? 1 : 0);
406 static const char *AEP_F1 = "AEP_ModExp";
407 static const char *AEP_F2 = "AEP_ModExpCrt";
409 static const char *AEP_F3 = "AEP_GenRandom";
411 static const char *AEP_F4 = "AEP_Finalize";
412 static const char *AEP_F5 = "AEP_Initialize";
413 static const char *AEP_F6 = "AEP_OpenConnection";
414 static const char *AEP_F7 = "AEP_SetBNCallBacks";
415 static const char *AEP_F8 = "AEP_CloseConnection";
417 /* These are the function pointers that are (un)set when the library has
418 * successfully (un)loaded. */
419 static t_AEP_OpenConnection *p_AEP_OpenConnection = NULL;
420 static t_AEP_CloseConnection *p_AEP_CloseConnection = NULL;
421 static t_AEP_ModExp *p_AEP_ModExp = NULL;
422 static t_AEP_ModExpCrt *p_AEP_ModExpCrt = NULL;
424 static t_AEP_GenRandom *p_AEP_GenRandom = NULL;
426 static t_AEP_Initialize *p_AEP_Initialize = NULL;
427 static t_AEP_Finalize *p_AEP_Finalize = NULL;
428 static t_AEP_SetBNCallBacks *p_AEP_SetBNCallBacks = NULL;
430 /* (de)initialisation functions. */
431 static int aep_init(ENGINE *e)
439 t_AEP_Initialize *p5;
440 t_AEP_OpenConnection *p6;
441 t_AEP_SetBNCallBacks *p7;
442 t_AEP_CloseConnection *p8;
448 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_ALREADY_LOADED);
451 /* Attempt to load libaep.so. */
453 aep_dso = DSO_load(NULL, get_AEP_LIBNAME(), NULL, 0);
457 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
461 if( !(p1 = (t_AEP_ModExp *) DSO_bind_func( aep_dso,AEP_F1)) ||
462 !(p2 = (t_AEP_ModExpCrt*) DSO_bind_func( aep_dso,AEP_F2)) ||
464 !(p3 = (t_AEP_GenRandom*) DSO_bind_func( aep_dso,AEP_F3)) ||
466 !(p4 = (t_AEP_Finalize*) DSO_bind_func( aep_dso,AEP_F4)) ||
467 !(p5 = (t_AEP_Initialize*) DSO_bind_func( aep_dso,AEP_F5)) ||
468 !(p6 = (t_AEP_OpenConnection*) DSO_bind_func( aep_dso,AEP_F6)) ||
469 !(p7 = (t_AEP_SetBNCallBacks*) DSO_bind_func( aep_dso,AEP_F7)) ||
470 !(p8 = (t_AEP_CloseConnection*) DSO_bind_func( aep_dso,AEP_F8)))
472 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
476 /* Copy the pointers */
479 p_AEP_ModExpCrt = p2;
481 p_AEP_GenRandom = p3;
484 p_AEP_Initialize = p5;
485 p_AEP_OpenConnection = p6;
486 p_AEP_SetBNCallBacks = p7;
487 p_AEP_CloseConnection = p8;
499 p_AEP_OpenConnection = NULL;
501 p_AEP_ModExpCrt = NULL;
503 p_AEP_GenRandom = NULL;
505 p_AEP_Initialize = NULL;
506 p_AEP_Finalize = NULL;
507 p_AEP_SetBNCallBacks = NULL;
508 p_AEP_CloseConnection = NULL;
513 /* Destructor (complements the "ENGINE_aep()" constructor) */
514 static int aep_destroy(ENGINE *e)
517 ERR_unload_AEPHK_strings();
521 static int aep_finish(ENGINE *e)
523 int to_return = 0, in_use;
528 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_NOT_LOADED);
532 rv = aep_close_all_connections(0, &in_use);
535 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CLOSE_HANDLES_FAILED);
540 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CONNECTIONS_IN_USE);
544 rv = p_AEP_Finalize();
547 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_FINALIZE_FAILED);
551 if(!DSO_free(aep_dso))
553 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_UNIT_FAILURE);
558 p_AEP_CloseConnection = NULL;
559 p_AEP_OpenConnection = NULL;
561 p_AEP_ModExpCrt = NULL;
563 p_AEP_GenRandom = NULL;
565 p_AEP_Initialize = NULL;
566 p_AEP_Finalize = NULL;
567 p_AEP_SetBNCallBacks = NULL;
574 static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
576 int initialised = ((aep_dso == NULL) ? 0 : 1);
579 case AEP_CMD_SO_PATH:
582 AEPHKerr(AEPHK_F_AEP_CTRL,
583 ERR_R_PASSED_NULL_PARAMETER);
588 AEPHKerr(AEPHK_F_AEP_CTRL,
589 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);
617 /*Grab a connection from the pool*/
618 rv = aep_get_connection(&hConnection);
621 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_GET_HANDLE_FAILED);
622 return BN_mod_exp(r, a, p, m, ctx);
625 /*To the card with the mod exp*/
626 rv = p_AEP_ModExp(hConnection,(void*)a, (void*)p,(void*)m, (void*)r,NULL);
630 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_MOD_EXP_FAILED);
631 rv = aep_close_connection(hConnection);
632 return BN_mod_exp(r, a, p, m, ctx);
635 /*Return the connection to the pool*/
636 rv = aep_return_connection(hConnection);
639 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_RETURN_CONNECTION_FAILED);
648 #ifndef OPENSSL_NO_RSA
649 static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
650 const BIGNUM *q, const BIGNUM *dmp1,
651 const BIGNUM *dmq1,const BIGNUM *iqmp, BN_CTX *ctx)
653 AEP_RV rv = AEP_R_OK;
654 AEP_CONNECTION_HNDL hConnection;
656 /*Grab a connection from the pool*/
657 rv = aep_get_connection(&hConnection);
660 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_GET_HANDLE_FAILED);
664 /*To the card with the mod exp*/
665 rv = p_AEP_ModExpCrt(hConnection,(void*)a, (void*)p, (void*)q, (void*)dmp1,(void*)dmq1,
666 (void*)iqmp,(void*)r,NULL);
669 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_MOD_EXP_CRT_FAILED);
670 rv = aep_close_connection(hConnection);
674 /*Return the connection to the pool*/
675 rv = aep_return_connection(hConnection);
678 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_RETURN_CONNECTION_FAILED);
689 static int aep_rand(unsigned char *buf,int len )
691 AEP_RV rv = AEP_R_OK;
692 AEP_CONNECTION_HNDL hConnection;
694 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
696 /*Can the request be serviced with what's already in the buffer?*/
697 if (len <= rand_block_bytes)
699 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
700 rand_block_bytes -= len;
701 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
704 /*If not the get another block of random bytes*/
706 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
708 rv = aep_get_connection(&hConnection);
711 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_HANDLE_FAILED);
715 if (len > RAND_BLK_SIZE)
717 rv = p_AEP_GenRandom(hConnection, len, 2, buf, NULL);
720 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
726 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
728 rv = p_AEP_GenRandom(hConnection, RAND_BLK_SIZE, 2, &rand_block[0], NULL);
731 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
736 rand_block_bytes = RAND_BLK_SIZE;
738 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
739 rand_block_bytes -= len;
741 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
744 rv = aep_return_connection(hConnection);
747 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_RETURN_CONNECTION_FAILED);
755 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
760 static int aep_rand_status(void)
766 #ifndef OPENSSL_NO_RSA
767 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
770 AEP_RV rv = AEP_R_OK;
774 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP,AEPHK_R_NOT_LOADED);
778 /*See if we have all the necessary bits for a crt*/
779 if (rsa->q && rsa->dmp1 && rsa->dmq1 && rsa->iqmp)
781 rv = aep_mod_exp_crt(r0,I,rsa->p,rsa->q, rsa->dmp1,rsa->dmq1,rsa->iqmp,ctx);
783 if (rv == FAIL_TO_SW){
784 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
785 to_return = (*meth->rsa_mod_exp)(r0, I, rsa, ctx);
788 else if (rv != AEP_R_OK)
793 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)) goto end;
823 /* let t = a2 ^ p2 mod m */
824 if (!aep_mod_exp(&t,a2,p2,m,ctx)) goto end;
825 /* let rr = rr * t mod m */
826 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
833 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
834 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
837 return aep_mod_exp(r, a, p, m, ctx);
841 #ifndef OPENSSL_NO_RSA
842 /* This function is aliased to mod_exp (with the mont stuff dropped). */
843 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
844 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
846 return aep_mod_exp(r, a, p, m, ctx);
850 #ifndef OPENSSL_NO_DH
851 /* This function is aliased to mod_exp (with the dh and mont dropped). */
852 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
853 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
856 return aep_mod_exp(r, a, p, m, ctx);
860 static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR phConnection)
863 AEP_RV rv = AEP_R_OK;
865 /*Get the current process id*/
868 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
871 curr_pid = GetThreadID();
872 #elif defined(_WIN32)
873 curr_pid = _getpid();
878 /*Check if this is the first time this is being called from the current
880 if (recorded_pid != curr_pid)
882 /*Remember our pid so we can check if we're in a new process*/
883 recorded_pid = curr_pid;
885 /*Call Finalize to make sure we have not inherited some data
886 from a parent process*/
889 /*Initialise the AEP API*/
890 rv = p_AEP_Initialize(NULL);
894 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_INIT_FAILURE);
899 /*Set the AEP big num call back functions*/
900 rv = p_AEP_SetBNCallBacks(&GetBigNumSize, &MakeAEPBigNum,
905 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_SETBNCALLBACK_FAILURE);
911 /*Reset the rand byte count*/
912 rand_block_bytes = 0;
915 /*Init the structures*/
916 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
918 aep_app_conn_table[count].conn_state = NotConnected;
919 aep_app_conn_table[count].conn_hndl = 0;
922 /*Open a connection*/
923 rv = p_AEP_OpenConnection(phConnection);
927 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
932 aep_app_conn_table[0].conn_state = InUse;
933 aep_app_conn_table[0].conn_hndl = *phConnection;
936 /*Check the existing connections to see if we can find a free one*/
937 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
939 if (aep_app_conn_table[count].conn_state == Connected)
941 aep_app_conn_table[count].conn_state = InUse;
942 *phConnection = aep_app_conn_table[count].conn_hndl;
946 /*If no connections available, we're going to have to try
948 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
950 if (aep_app_conn_table[count].conn_state == NotConnected)
952 /*Open a connection*/
953 rv = p_AEP_OpenConnection(phConnection);
957 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
961 aep_app_conn_table[count].conn_state = InUse;
962 aep_app_conn_table[count].conn_hndl = *phConnection;
966 rv = AEP_R_GENERAL_ERROR;
968 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
973 static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection)
977 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
979 /*Find the connection item that matches this connection handle*/
980 for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
982 if (aep_app_conn_table[count].conn_hndl == hConnection)
984 aep_app_conn_table[count].conn_state = Connected;
989 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
994 static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection)
997 AEP_RV rv = AEP_R_OK;
999 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1001 /*Find the connection item that matches this connection handle*/
1002 for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
1004 if (aep_app_conn_table[count].conn_hndl == hConnection)
1006 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1009 aep_app_conn_table[count].conn_state = NotConnected;
1010 aep_app_conn_table[count].conn_hndl = 0;
1016 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1020 static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use)
1023 AEP_RV rv = AEP_R_OK;
1026 if (use_engine_lock) CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1027 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
1029 switch (aep_app_conn_table[count].conn_state)
1032 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1035 aep_app_conn_table[count].conn_state = NotConnected;
1036 aep_app_conn_table[count].conn_hndl = 0;
1046 if (use_engine_lock) CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1050 /*BigNum call back functions, used to convert OpenSSL bignums into AEP bignums.
1051 Note only 32bit Openssl build support*/
1053 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize)
1057 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1058 bn = (BIGNUM*) ArbBigNum;
1060 #ifdef SIXTY_FOUR_BIT_LONG
1061 *BigNumSize = bn->top << 3;
1063 /*Size of the bignum in bytes is equal to the bn->top (no of 32 bit
1064 words) multiplies by 4*/
1065 *BigNumSize = bn->top << 2;
1071 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
1072 unsigned char* AEP_BigNum)
1076 #ifndef SIXTY_FOUR_BIT_LONG
1081 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1082 bn = (BIGNUM*) ArbBigNum;
1084 #ifdef SIXTY_FOUR_BIT_LONG
1085 memcpy(AEP_BigNum, bn->d, BigNumSize);
1087 /*Must copy data into a (monotone) least significant byte first format
1088 performing endian conversion if necessary*/
1089 for(i=0;i<bn->top;i++)
1091 buf = (unsigned char*)&bn->d[i];
1093 *((AEP_U32*)AEP_BigNum) = (AEP_U32)
1094 ((unsigned) buf[1] << 8 | buf[0]) |
1095 ((unsigned) buf[3] << 8 | buf[2]) << 16;
1104 /*Turn an AEP Big Num back to a user big num*/
1105 static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
1106 unsigned char* AEP_BigNum)
1109 #ifndef SIXTY_FOUR_BIT_LONG
1113 bn = (BIGNUM*)ArbBigNum;
1115 /*Expand the result bn so that it can hold our big num.
1117 bn_expand(bn, (int)(BigNumSize << 3));
1119 #ifdef SIXTY_FOUR_BIT_LONG
1120 bn->top = BigNumSize >> 3;
1122 if((BigNumSize & 7) != 0)
1125 memset(bn->d, 0, bn->top << 3);
1127 memcpy(bn->d, AEP_BigNum, BigNumSize);
1129 bn->top = BigNumSize >> 2;
1131 for(i=0;i<bn->top;i++)
1133 bn->d[i] = (AEP_U32)
1134 ((unsigned) AEP_BigNum[3] << 8 | AEP_BigNum[2]) << 16 |
1135 ((unsigned) AEP_BigNum[1] << 8 | AEP_BigNum[0]);
1143 #endif /* !OPENSSL_NO_HW_AEP */
1144 #endif /* !OPENSSL_NO_HW */