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 #include <openssl/crypto.h>
69 #include <openssl/dso.h>
70 #include <openssl/engine.h>
71 #include <openssl/buffer.h>
72 #ifndef OPENSSL_NO_RSA
73 #include <openssl/rsa.h>
75 #ifndef OPENSSL_NO_DSA
76 #include <openssl/dsa.h>
79 #include <openssl/dh.h>
81 #include <openssl/bn.h>
84 #ifndef OPENSSL_NO_HW_AEP
88 #include "vendor_defns/aep.h"
91 #define AEP_LIB_NAME "aep engine"
92 #define FAIL_TO_SW 0x10101010
94 #include "e_aep_err.c"
96 static int aep_init(ENGINE *e);
97 static int aep_finish(ENGINE *e);
98 static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
99 static int aep_destroy(ENGINE *e);
101 static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR hConnection);
102 static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection);
103 static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection);
104 static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use);
107 #ifndef OPENSSL_NO_RSA
108 static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
109 const BIGNUM *m, BN_CTX *ctx);
111 static AEP_RV aep_mod_exp_crt(BIGNUM *r,const BIGNUM *a, const BIGNUM *p,
112 const BIGNUM *q, const BIGNUM *dmp1,const BIGNUM *dmq1,
113 const BIGNUM *iqmp, BN_CTX *ctx);
117 #ifndef OPENSSL_NO_RSA
118 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
121 /* This function is aliased to mod_exp (with the mont stuff dropped). */
122 #ifndef OPENSSL_NO_RSA
123 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
124 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
128 #ifndef OPENSSL_NO_DSA
129 static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
130 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
131 BN_CTX *ctx, BN_MONT_CTX *in_mont);
133 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
134 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
139 /* This function is aliased to mod_exp (with the DH and mont dropped). */
140 #ifndef OPENSSL_NO_DH
141 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
142 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
147 static int aep_rand(unsigned char *buf, int num);
148 static int aep_rand_status(void);
151 /* Bignum conversion stuff */
152 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize);
153 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
154 unsigned char* AEP_BigNum);
155 static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
156 unsigned char* AEP_BigNum);
158 /* The definitions for control commands specific to this engine */
159 #define AEP_CMD_SO_PATH ENGINE_CMD_BASE
160 static const ENGINE_CMD_DEFN aep_cmd_defns[] =
164 "Specifies the path to the 'aep' shared library",
165 ENGINE_CMD_FLAG_STRING
170 #ifndef OPENSSL_NO_RSA
171 /* Our internal RSA_METHOD that we provide pointers to */
172 static RSA_METHOD aep_rsa =
175 NULL, /*rsa_pub_encrypt*/
176 NULL, /*rsa_pub_decrypt*/
177 NULL, /*rsa_priv_encrypt*/
178 NULL, /*rsa_priv_encrypt*/
179 aep_rsa_mod_exp, /*rsa_mod_exp*/
180 aep_mod_exp_mont, /*bn_mod_exp*/
191 #ifndef OPENSSL_NO_DSA
192 /* Our internal DSA_METHOD that we provide pointers to */
193 static DSA_METHOD aep_dsa =
196 NULL, /* dsa_do_sign */
197 NULL, /* dsa_sign_setup */
198 NULL, /* dsa_do_verify */
199 aep_dsa_mod_exp, /* dsa_mod_exp */
200 aep_mod_exp_dsa, /* bn_mod_exp */
205 NULL, /* dsa_paramgen */
206 NULL /* dsa_keygen */
210 #ifndef OPENSSL_NO_DH
211 /* Our internal DH_METHOD that we provide pointers to */
212 static DH_METHOD aep_dh =
227 /* our internal RAND_method that we provide pointers to */
228 static RAND_METHOD aep_random =
230 /*"AEP RAND method", */
240 /*Define an array of structures to hold connections*/
241 static AEP_CONNECTION_ENTRY aep_app_conn_table[MAX_PROCESS_CONNECTIONS];
243 /*Used to determine if this is a new process*/
244 static pid_t recorded_pid = 0;
247 static AEP_U8 rand_block[RAND_BLK_SIZE];
248 static AEP_U32 rand_block_bytes = 0;
251 /* Constants used when creating the ENGINE */
252 static const char *engine_aep_id = "aep";
253 static const char *engine_aep_name = "Aep hardware engine support";
255 static int max_key_len = 2176;
258 /* This internal function is used by ENGINE_aep() and possibly by the
259 * "dynamic" ENGINE support too */
260 static int bind_aep(ENGINE *e)
262 #ifndef OPENSSL_NO_RSA
263 const RSA_METHOD *meth1;
265 #ifndef OPENSSL_NO_DSA
266 const DSA_METHOD *meth2;
268 #ifndef OPENSSL_NO_DH
269 const DH_METHOD *meth3;
272 if(!ENGINE_set_id(e, engine_aep_id) ||
273 !ENGINE_set_name(e, engine_aep_name) ||
274 #ifndef OPENSSL_NO_RSA
275 !ENGINE_set_RSA(e, &aep_rsa) ||
277 #ifndef OPENSSL_NO_DSA
278 !ENGINE_set_DSA(e, &aep_dsa) ||
280 #ifndef OPENSSL_NO_DH
281 !ENGINE_set_DH(e, &aep_dh) ||
284 !ENGINE_set_RAND(e, &aep_random) ||
286 !ENGINE_set_init_function(e, aep_init) ||
287 !ENGINE_set_destroy_function(e, aep_destroy) ||
288 !ENGINE_set_finish_function(e, aep_finish) ||
289 !ENGINE_set_ctrl_function(e, aep_ctrl) ||
290 !ENGINE_set_cmd_defns(e, aep_cmd_defns))
293 #ifndef OPENSSL_NO_RSA
294 /* We know that the "PKCS1_SSLeay()" functions hook properly
295 * to the aep-specific mod_exp and mod_exp_crt so we use
296 * those functions. NB: We don't use ENGINE_openssl() or
297 * anything "more generic" because something like the RSAref
298 * code may not hook properly, and if you own one of these
299 * cards then you have the right to do RSA operations on it
301 meth1 = RSA_PKCS1_SSLeay();
302 aep_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
303 aep_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
304 aep_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
305 aep_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
309 #ifndef OPENSSL_NO_DSA
310 /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
312 meth2 = DSA_OpenSSL();
313 aep_dsa.dsa_do_sign = meth2->dsa_do_sign;
314 aep_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
315 aep_dsa.dsa_do_verify = meth2->dsa_do_verify;
317 aep_dsa = *DSA_get_default_method();
318 aep_dsa.dsa_mod_exp = aep_dsa_mod_exp;
319 aep_dsa.bn_mod_exp = aep_mod_exp_dsa;
322 #ifndef OPENSSL_NO_DH
323 /* Much the same for Diffie-Hellman */
324 meth3 = DH_OpenSSL();
325 aep_dh.generate_key = meth3->generate_key;
326 aep_dh.compute_key = meth3->compute_key;
327 aep_dh.bn_mod_exp = meth3->bn_mod_exp;
330 /* Ensure the aep error handling is set up */
331 ERR_load_AEPHK_strings();
336 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
337 static int bind_helper(ENGINE *e, const char *id)
339 if(id && (strcmp(id, engine_aep_id) != 0))
345 IMPLEMENT_DYNAMIC_CHECK_FN()
346 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
348 static ENGINE *engine_aep(void)
350 ENGINE *ret = ENGINE_new();
361 void ENGINE_load_aep(void)
363 /* Copied from eng_[openssl|dyn].c */
364 ENGINE *toadd = engine_aep();
372 /* This is a process-global DSO handle used for loading and unloading
373 * the Aep library. NB: This is only set (or unset) during an
374 * init() or finish() call (reference counts permitting) and they're
375 * operating with global locks, so this should be thread-safe
377 static DSO *aep_dso = NULL;
379 /* These are the static string constants for the DSO file name and the function
380 * symbol names to bind to.
382 static const char *AEP_LIBNAME = NULL;
383 static const char *get_AEP_LIBNAME(void)
389 static void free_AEP_LIBNAME(void)
392 OPENSSL_free((void*)AEP_LIBNAME);
395 static long set_AEP_LIBNAME(const char *name)
398 return ((AEP_LIBNAME = BUF_strdup(name)) != NULL ? 1 : 0);
401 static const char *AEP_F1 = "AEP_ModExp";
402 static const char *AEP_F2 = "AEP_ModExpCrt";
404 static const char *AEP_F3 = "AEP_GenRandom";
406 static const char *AEP_F4 = "AEP_Finalize";
407 static const char *AEP_F5 = "AEP_Initialize";
408 static const char *AEP_F6 = "AEP_OpenConnection";
409 static const char *AEP_F7 = "AEP_SetBNCallBacks";
410 static const char *AEP_F8 = "AEP_CloseConnection";
412 /* These are the function pointers that are (un)set when the library has
413 * successfully (un)loaded. */
414 static t_AEP_OpenConnection *p_AEP_OpenConnection = NULL;
415 static t_AEP_CloseConnection *p_AEP_CloseConnection = NULL;
416 static t_AEP_ModExp *p_AEP_ModExp = NULL;
417 static t_AEP_ModExpCrt *p_AEP_ModExpCrt = NULL;
419 static t_AEP_GenRandom *p_AEP_GenRandom = NULL;
421 static t_AEP_Initialize *p_AEP_Initialize = NULL;
422 static t_AEP_Finalize *p_AEP_Finalize = NULL;
423 static t_AEP_SetBNCallBacks *p_AEP_SetBNCallBacks = NULL;
425 /* (de)initialisation functions. */
426 static int aep_init(ENGINE *e)
434 t_AEP_Initialize *p5;
435 t_AEP_OpenConnection *p6;
436 t_AEP_SetBNCallBacks *p7;
437 t_AEP_CloseConnection *p8;
443 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_ALREADY_LOADED);
446 /* Attempt to load libaep.so. */
448 aep_dso = DSO_load(NULL, get_AEP_LIBNAME(), NULL, 0);
452 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
456 if( !(p1 = (t_AEP_ModExp *) DSO_bind_func( aep_dso,AEP_F1)) ||
457 !(p2 = (t_AEP_ModExpCrt*) DSO_bind_func( aep_dso,AEP_F2)) ||
459 !(p3 = (t_AEP_GenRandom*) DSO_bind_func( aep_dso,AEP_F3)) ||
461 !(p4 = (t_AEP_Finalize*) DSO_bind_func( aep_dso,AEP_F4)) ||
462 !(p5 = (t_AEP_Initialize*) DSO_bind_func( aep_dso,AEP_F5)) ||
463 !(p6 = (t_AEP_OpenConnection*) DSO_bind_func( aep_dso,AEP_F6)) ||
464 !(p7 = (t_AEP_SetBNCallBacks*) DSO_bind_func( aep_dso,AEP_F7)) ||
465 !(p8 = (t_AEP_CloseConnection*) DSO_bind_func( aep_dso,AEP_F8)))
467 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
471 /* Copy the pointers */
474 p_AEP_ModExpCrt = p2;
476 p_AEP_GenRandom = p3;
479 p_AEP_Initialize = p5;
480 p_AEP_OpenConnection = p6;
481 p_AEP_SetBNCallBacks = p7;
482 p_AEP_CloseConnection = p8;
494 p_AEP_OpenConnection = NULL;
496 p_AEP_ModExpCrt = NULL;
498 p_AEP_GenRandom = NULL;
500 p_AEP_Initialize = NULL;
501 p_AEP_Finalize = NULL;
502 p_AEP_SetBNCallBacks = NULL;
503 p_AEP_CloseConnection = NULL;
508 /* Destructor (complements the "ENGINE_aep()" constructor) */
509 static int aep_destroy(ENGINE *e)
512 ERR_unload_AEPHK_strings();
516 static int aep_finish(ENGINE *e)
518 int to_return = 0, in_use;
523 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_NOT_LOADED);
527 rv = aep_close_all_connections(0, &in_use);
530 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CLOSE_HANDLES_FAILED);
535 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CONNECTIONS_IN_USE);
539 rv = p_AEP_Finalize();
542 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_FINALIZE_FAILED);
546 if(!DSO_free(aep_dso))
548 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_UNIT_FAILURE);
553 p_AEP_CloseConnection = NULL;
554 p_AEP_OpenConnection = NULL;
556 p_AEP_ModExpCrt = NULL;
558 p_AEP_GenRandom = NULL;
560 p_AEP_Initialize = NULL;
561 p_AEP_Finalize = NULL;
562 p_AEP_SetBNCallBacks = NULL;
569 static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
571 int initialised = ((aep_dso == NULL) ? 0 : 1);
574 case AEP_CMD_SO_PATH:
577 AEPHKerr(AEPHK_F_AEP_CTRL,
578 ERR_R_PASSED_NULL_PARAMETER);
583 AEPHKerr(AEPHK_F_AEP_CTRL,
584 AEPHK_R_ALREADY_LOADED);
587 return set_AEP_LIBNAME((const char*)p);
591 AEPHKerr(AEPHK_F_AEP_CTRL,AEPHK_R_CTRL_COMMAND_NOT_IMPLEMENTED);
595 static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
596 const BIGNUM *m, BN_CTX *ctx)
600 AEP_CONNECTION_HNDL hConnection;
603 r_len = BN_num_bits(m);
605 /* Perform in software if modulus is too large for hardware. */
607 if (r_len > max_key_len){
608 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
609 return BN_mod_exp(r, a, p, m, ctx);
612 /*Grab a connection from the pool*/
613 rv = aep_get_connection(&hConnection);
616 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_GET_HANDLE_FAILED);
617 return BN_mod_exp(r, a, p, m, ctx);
620 /*To the card with the mod exp*/
621 rv = p_AEP_ModExp(hConnection,(void*)a, (void*)p,(void*)m, (void*)r,NULL);
625 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_MOD_EXP_FAILED);
626 rv = aep_close_connection(hConnection);
627 return BN_mod_exp(r, a, p, m, ctx);
630 /*Return the connection to the pool*/
631 rv = aep_return_connection(hConnection);
634 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_RETURN_CONNECTION_FAILED);
643 #ifndef OPENSSL_NO_RSA
644 static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
645 const BIGNUM *q, const BIGNUM *dmp1,
646 const BIGNUM *dmq1,const BIGNUM *iqmp, BN_CTX *ctx)
648 AEP_RV rv = AEP_R_OK;
649 AEP_CONNECTION_HNDL hConnection;
651 /*Grab a connection from the pool*/
652 rv = aep_get_connection(&hConnection);
655 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_GET_HANDLE_FAILED);
659 /*To the card with the mod exp*/
660 rv = p_AEP_ModExpCrt(hConnection,(void*)a, (void*)p, (void*)q, (void*)dmp1,(void*)dmq1,
661 (void*)iqmp,(void*)r,NULL);
664 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_MOD_EXP_CRT_FAILED);
665 rv = aep_close_connection(hConnection);
669 /*Return the connection to the pool*/
670 rv = aep_return_connection(hConnection);
673 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_RETURN_CONNECTION_FAILED);
684 static int aep_rand(unsigned char *buf,int len )
686 AEP_RV rv = AEP_R_OK;
687 AEP_CONNECTION_HNDL hConnection;
689 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
691 /*Can the request be serviced with what's already in the buffer?*/
692 if (len <= rand_block_bytes)
694 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
695 rand_block_bytes -= len;
696 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
699 /*If not the get another block of random bytes*/
701 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
703 rv = aep_get_connection(&hConnection);
706 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_HANDLE_FAILED);
710 if (len > RAND_BLK_SIZE)
712 rv = p_AEP_GenRandom(hConnection, len, 2, buf, NULL);
715 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
721 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
723 rv = p_AEP_GenRandom(hConnection, RAND_BLK_SIZE, 2, &rand_block[0], NULL);
726 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
731 rand_block_bytes = RAND_BLK_SIZE;
733 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
734 rand_block_bytes -= len;
736 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
739 rv = aep_return_connection(hConnection);
742 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_RETURN_CONNECTION_FAILED);
750 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
755 static int aep_rand_status(void)
761 #ifndef OPENSSL_NO_RSA
762 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
765 AEP_RV rv = AEP_R_OK;
769 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP,AEPHK_R_NOT_LOADED);
773 /*See if we have all the necessary bits for a crt*/
774 if (rsa->q && rsa->dmp1 && rsa->dmq1 && rsa->iqmp)
776 rv = aep_mod_exp_crt(r0,I,rsa->p,rsa->q, rsa->dmp1,rsa->dmq1,rsa->iqmp,ctx);
778 if (rv == FAIL_TO_SW){
779 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
780 to_return = (*meth->rsa_mod_exp)(r0, I, rsa, ctx);
783 else if (rv != AEP_R_OK)
788 if (!rsa->d || !rsa->n)
790 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP,AEPHK_R_MISSING_KEY_COMPONENTS);
794 rv = aep_mod_exp(r0,I,rsa->d,rsa->n,ctx);
807 #ifndef OPENSSL_NO_DSA
808 static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
809 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
810 BN_CTX *ctx, BN_MONT_CTX *in_mont)
816 /* let rr = a1 ^ p1 mod m */
817 if (!aep_mod_exp(rr,a1,p1,m,ctx)) goto end;
818 /* let t = a2 ^ p2 mod m */
819 if (!aep_mod_exp(&t,a2,p2,m,ctx)) goto end;
820 /* let rr = rr * t mod m */
821 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
828 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
829 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
832 return aep_mod_exp(r, a, p, m, ctx);
836 #ifndef OPENSSL_NO_RSA
837 /* This function is aliased to mod_exp (with the mont stuff dropped). */
838 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
839 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
841 return aep_mod_exp(r, a, p, m, ctx);
845 #ifndef OPENSSL_NO_DH
846 /* This function is aliased to mod_exp (with the dh and mont dropped). */
847 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
848 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
851 return aep_mod_exp(r, a, p, m, ctx);
855 static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR phConnection)
858 AEP_RV rv = AEP_R_OK;
860 /*Get the current process id*/
863 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
868 curr_pid = GetThreadID();
871 /*Check if this is the first time this is being called from the current
873 if (recorded_pid != curr_pid)
875 /*Remember our pid so we can check if we're in a new process*/
876 recorded_pid = curr_pid;
878 /*Call Finalize to make sure we have not inherited some data
879 from a parent process*/
882 /*Initialise the AEP API*/
883 rv = p_AEP_Initialize(NULL);
887 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_INIT_FAILURE);
892 /*Set the AEP big num call back functions*/
893 rv = p_AEP_SetBNCallBacks(&GetBigNumSize, &MakeAEPBigNum,
898 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_SETBNCALLBACK_FAILURE);
904 /*Reset the rand byte count*/
905 rand_block_bytes = 0;
908 /*Init the structures*/
909 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
911 aep_app_conn_table[count].conn_state = NotConnected;
912 aep_app_conn_table[count].conn_hndl = 0;
915 /*Open a connection*/
916 rv = p_AEP_OpenConnection(phConnection);
920 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
925 aep_app_conn_table[0].conn_state = InUse;
926 aep_app_conn_table[0].conn_hndl = *phConnection;
929 /*Check the existing connections to see if we can find a free one*/
930 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
932 if (aep_app_conn_table[count].conn_state == Connected)
934 aep_app_conn_table[count].conn_state = InUse;
935 *phConnection = aep_app_conn_table[count].conn_hndl;
939 /*If no connections available, we're going to have to try
941 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
943 if (aep_app_conn_table[count].conn_state == NotConnected)
945 /*Open a connection*/
946 rv = p_AEP_OpenConnection(phConnection);
950 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
954 aep_app_conn_table[count].conn_state = InUse;
955 aep_app_conn_table[count].conn_hndl = *phConnection;
959 rv = AEP_R_GENERAL_ERROR;
961 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
966 static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection)
970 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
972 /*Find the connection item that matches this connection handle*/
973 for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
975 if (aep_app_conn_table[count].conn_hndl == hConnection)
977 aep_app_conn_table[count].conn_state = Connected;
982 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
987 static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection)
990 AEP_RV rv = AEP_R_OK;
992 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
994 /*Find the connection item that matches this connection handle*/
995 for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
997 if (aep_app_conn_table[count].conn_hndl == hConnection)
999 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1002 aep_app_conn_table[count].conn_state = NotConnected;
1003 aep_app_conn_table[count].conn_hndl = 0;
1009 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1013 static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use)
1016 AEP_RV rv = AEP_R_OK;
1019 if (use_engine_lock) CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1020 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
1022 switch (aep_app_conn_table[count].conn_state)
1025 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1028 aep_app_conn_table[count].conn_state = NotConnected;
1029 aep_app_conn_table[count].conn_hndl = 0;
1039 if (use_engine_lock) CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1043 /*BigNum call back functions, used to convert OpenSSL bignums into AEP bignums.
1044 Note only 32bit Openssl build support*/
1046 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize)
1050 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1051 bn = (BIGNUM*) ArbBigNum;
1053 #ifdef SIXTY_FOUR_BIT_LONG
1054 *BigNumSize = bn->top << 3;
1056 /*Size of the bignum in bytes is equal to the bn->top (no of 32 bit
1057 words) multiplies by 4*/
1058 *BigNumSize = bn->top << 2;
1064 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
1065 unsigned char* AEP_BigNum)
1069 #ifndef SIXTY_FOUR_BIT_LONG
1074 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1075 bn = (BIGNUM*) ArbBigNum;
1077 #ifdef SIXTY_FOUR_BIT_LONG
1078 memcpy(AEP_BigNum, bn->d, BigNumSize);
1080 /*Must copy data into a (monotone) least significant byte first format
1081 performing endian conversion if necessary*/
1082 for(i=0;i<bn->top;i++)
1084 buf = (unsigned char*)&bn->d[i];
1086 *((AEP_U32*)AEP_BigNum) = (AEP_U32)
1087 ((unsigned) buf[1] << 8 | buf[0]) |
1088 ((unsigned) buf[3] << 8 | buf[2]) << 16;
1097 /*Turn an AEP Big Num back to a user big num*/
1098 static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
1099 unsigned char* AEP_BigNum)
1102 #ifndef SIXTY_FOUR_BIT_LONG
1106 bn = (BIGNUM*)ArbBigNum;
1108 /*Expand the result bn so that it can hold our big num.
1110 bn_expand(bn, (int)(BigNumSize << 3));
1112 #ifdef SIXTY_FOUR_BIT_LONG
1113 bn->top = BigNumSize >> 3;
1115 if((BigNumSize & 7) != 0)
1118 memset(bn->d, 0, bn->top << 3);
1120 memcpy(bn->d, AEP_BigNum, BigNumSize);
1122 bn->top = BigNumSize >> 2;
1124 for(i=0;i<bn->top;i++)
1126 bn->d[i] = (AEP_U32)
1127 ((unsigned) AEP_BigNum[3] << 8 | AEP_BigNum[2]) << 16 |
1128 ((unsigned) AEP_BigNum[1] << 8 | AEP_BigNum[0]);
1136 #endif /* !OPENSSL_NO_HW_AEP */
1137 #endif /* !OPENSSL_NO_HW */