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,const BIGNUM *dmq1,
120 const BIGNUM *iqmp, BN_CTX *ctx);
124 #ifndef OPENSSL_NO_RSA
125 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
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, BN_MONT_CTX *m_ctx);
154 static int aep_rand(unsigned char *buf, int num);
155 static int aep_rand_status(void);
158 /* Bignum conversion stuff */
159 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize);
160 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
161 unsigned char* AEP_BigNum);
162 static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
163 unsigned char* AEP_BigNum);
165 /* The definitions for control commands specific to this engine */
166 #define AEP_CMD_SO_PATH ENGINE_CMD_BASE
167 static const ENGINE_CMD_DEFN aep_cmd_defns[] =
171 "Specifies the path to the 'aep' shared library",
172 ENGINE_CMD_FLAG_STRING
177 #ifndef OPENSSL_NO_RSA
178 /* Our internal RSA_METHOD that we provide pointers to */
179 static RSA_METHOD aep_rsa =
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*/
198 #ifndef OPENSSL_NO_DSA
199 /* Our internal DSA_METHOD that we provide pointers to */
200 static DSA_METHOD aep_dsa =
203 NULL, /* dsa_do_sign */
204 NULL, /* dsa_sign_setup */
205 NULL, /* dsa_do_verify */
206 aep_dsa_mod_exp, /* dsa_mod_exp */
207 aep_mod_exp_dsa, /* bn_mod_exp */
212 NULL, /* dsa_paramgen */
213 NULL /* dsa_keygen */
217 #ifndef OPENSSL_NO_DH
218 /* Our internal DH_METHOD that we provide pointers to */
219 static DH_METHOD aep_dh =
234 /* our internal RAND_method that we provide pointers to */
235 static RAND_METHOD aep_random =
237 /*"AEP RAND method", */
247 /*Define an array of structures to hold connections*/
248 static AEP_CONNECTION_ENTRY aep_app_conn_table[MAX_PROCESS_CONNECTIONS];
250 /*Used to determine if this is a new process*/
251 static pid_t recorded_pid = 0;
254 static AEP_U8 rand_block[RAND_BLK_SIZE];
255 static AEP_U32 rand_block_bytes = 0;
258 /* Constants used when creating the ENGINE */
259 static const char *engine_aep_id = "aep";
260 static const char *engine_aep_name = "Aep hardware engine support";
262 static int max_key_len = 2176;
265 /* This internal function is used by ENGINE_aep() and possibly by the
266 * "dynamic" ENGINE support too */
267 static int bind_aep(ENGINE *e)
269 #ifndef OPENSSL_NO_RSA
270 const RSA_METHOD *meth1;
272 #ifndef OPENSSL_NO_DSA
273 const DSA_METHOD *meth2;
275 #ifndef OPENSSL_NO_DH
276 const DH_METHOD *meth3;
279 if(!ENGINE_set_id(e, engine_aep_id) ||
280 !ENGINE_set_name(e, engine_aep_name) ||
281 #ifndef OPENSSL_NO_RSA
282 !ENGINE_set_RSA(e, &aep_rsa) ||
284 #ifndef OPENSSL_NO_DSA
285 !ENGINE_set_DSA(e, &aep_dsa) ||
287 #ifndef OPENSSL_NO_DH
288 !ENGINE_set_DH(e, &aep_dh) ||
291 !ENGINE_set_RAND(e, &aep_random) ||
293 !ENGINE_set_init_function(e, aep_init) ||
294 !ENGINE_set_destroy_function(e, aep_destroy) ||
295 !ENGINE_set_finish_function(e, aep_finish) ||
296 !ENGINE_set_ctrl_function(e, aep_ctrl) ||
297 !ENGINE_set_cmd_defns(e, aep_cmd_defns))
300 #ifndef OPENSSL_NO_RSA
301 /* We know that the "PKCS1_SSLeay()" functions hook properly
302 * to the aep-specific mod_exp and mod_exp_crt so we use
303 * those functions. NB: We don't use ENGINE_openssl() or
304 * anything "more generic" because something like the RSAref
305 * code may not hook properly, and if you own one of these
306 * cards then you have the right to do RSA operations on it
308 meth1 = RSA_PKCS1_SSLeay();
309 aep_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
310 aep_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
311 aep_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
312 aep_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
316 #ifndef OPENSSL_NO_DSA
317 /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
319 meth2 = DSA_OpenSSL();
320 aep_dsa.dsa_do_sign = meth2->dsa_do_sign;
321 aep_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
322 aep_dsa.dsa_do_verify = meth2->dsa_do_verify;
324 aep_dsa = *DSA_get_default_method();
325 aep_dsa.dsa_mod_exp = aep_dsa_mod_exp;
326 aep_dsa.bn_mod_exp = aep_mod_exp_dsa;
329 #ifndef OPENSSL_NO_DH
330 /* Much the same for Diffie-Hellman */
331 meth3 = DH_OpenSSL();
332 aep_dh.generate_key = meth3->generate_key;
333 aep_dh.compute_key = meth3->compute_key;
334 aep_dh.bn_mod_exp = meth3->bn_mod_exp;
337 /* Ensure the aep error handling is set up */
338 ERR_load_AEPHK_strings();
343 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
344 static int bind_helper(ENGINE *e, const char *id)
346 if(id && (strcmp(id, engine_aep_id) != 0))
352 IMPLEMENT_DYNAMIC_CHECK_FN()
353 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
355 static ENGINE *engine_aep(void)
357 ENGINE *ret = ENGINE_new();
368 void ENGINE_load_aep(void)
370 /* Copied from eng_[openssl|dyn].c */
371 ENGINE *toadd = engine_aep();
379 /* This is a process-global DSO handle used for loading and unloading
380 * the Aep library. NB: This is only set (or unset) during an
381 * init() or finish() call (reference counts permitting) and they're
382 * operating with global locks, so this should be thread-safe
384 static DSO *aep_dso = NULL;
386 /* These are the static string constants for the DSO file name and the function
387 * symbol names to bind to.
389 static const char *AEP_LIBNAME = NULL;
390 static const char *get_AEP_LIBNAME(void)
396 static void free_AEP_LIBNAME(void)
399 OPENSSL_free((void*)AEP_LIBNAME);
402 static long set_AEP_LIBNAME(const char *name)
405 return ((AEP_LIBNAME = BUF_strdup(name)) != NULL ? 1 : 0);
408 static const char *AEP_F1 = "AEP_ModExp";
409 static const char *AEP_F2 = "AEP_ModExpCrt";
411 static const char *AEP_F3 = "AEP_GenRandom";
413 static const char *AEP_F4 = "AEP_Finalize";
414 static const char *AEP_F5 = "AEP_Initialize";
415 static const char *AEP_F6 = "AEP_OpenConnection";
416 static const char *AEP_F7 = "AEP_SetBNCallBacks";
417 static const char *AEP_F8 = "AEP_CloseConnection";
419 /* These are the function pointers that are (un)set when the library has
420 * successfully (un)loaded. */
421 static t_AEP_OpenConnection *p_AEP_OpenConnection = NULL;
422 static t_AEP_CloseConnection *p_AEP_CloseConnection = NULL;
423 static t_AEP_ModExp *p_AEP_ModExp = NULL;
424 static t_AEP_ModExpCrt *p_AEP_ModExpCrt = NULL;
426 static t_AEP_GenRandom *p_AEP_GenRandom = NULL;
428 static t_AEP_Initialize *p_AEP_Initialize = NULL;
429 static t_AEP_Finalize *p_AEP_Finalize = NULL;
430 static t_AEP_SetBNCallBacks *p_AEP_SetBNCallBacks = NULL;
432 /* (de)initialisation functions. */
433 static int aep_init(ENGINE *e)
441 t_AEP_Initialize *p5;
442 t_AEP_OpenConnection *p6;
443 t_AEP_SetBNCallBacks *p7;
444 t_AEP_CloseConnection *p8;
450 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_ALREADY_LOADED);
453 /* Attempt to load libaep.so. */
455 aep_dso = DSO_load(NULL, get_AEP_LIBNAME(), NULL, 0);
459 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
463 if( !(p1 = (t_AEP_ModExp *) DSO_bind_func( aep_dso,AEP_F1)) ||
464 !(p2 = (t_AEP_ModExpCrt*) DSO_bind_func( aep_dso,AEP_F2)) ||
466 !(p3 = (t_AEP_GenRandom*) DSO_bind_func( aep_dso,AEP_F3)) ||
468 !(p4 = (t_AEP_Finalize*) DSO_bind_func( aep_dso,AEP_F4)) ||
469 !(p5 = (t_AEP_Initialize*) DSO_bind_func( aep_dso,AEP_F5)) ||
470 !(p6 = (t_AEP_OpenConnection*) DSO_bind_func( aep_dso,AEP_F6)) ||
471 !(p7 = (t_AEP_SetBNCallBacks*) DSO_bind_func( aep_dso,AEP_F7)) ||
472 !(p8 = (t_AEP_CloseConnection*) DSO_bind_func( aep_dso,AEP_F8)))
474 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
478 /* Copy the pointers */
481 p_AEP_ModExpCrt = p2;
483 p_AEP_GenRandom = p3;
486 p_AEP_Initialize = p5;
487 p_AEP_OpenConnection = p6;
488 p_AEP_SetBNCallBacks = p7;
489 p_AEP_CloseConnection = p8;
501 p_AEP_OpenConnection = NULL;
503 p_AEP_ModExpCrt = NULL;
505 p_AEP_GenRandom = NULL;
507 p_AEP_Initialize = NULL;
508 p_AEP_Finalize = NULL;
509 p_AEP_SetBNCallBacks = NULL;
510 p_AEP_CloseConnection = NULL;
515 /* Destructor (complements the "ENGINE_aep()" constructor) */
516 static int aep_destroy(ENGINE *e)
519 ERR_unload_AEPHK_strings();
523 static int aep_finish(ENGINE *e)
525 int to_return = 0, in_use;
530 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_NOT_LOADED);
534 rv = aep_close_all_connections(0, &in_use);
537 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CLOSE_HANDLES_FAILED);
542 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CONNECTIONS_IN_USE);
546 rv = p_AEP_Finalize();
549 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_FINALIZE_FAILED);
553 if(!DSO_free(aep_dso))
555 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_UNIT_FAILURE);
560 p_AEP_CloseConnection = NULL;
561 p_AEP_OpenConnection = NULL;
563 p_AEP_ModExpCrt = NULL;
565 p_AEP_GenRandom = NULL;
567 p_AEP_Initialize = NULL;
568 p_AEP_Finalize = NULL;
569 p_AEP_SetBNCallBacks = NULL;
576 static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
578 int initialised = ((aep_dso == NULL) ? 0 : 1);
581 case AEP_CMD_SO_PATH:
584 AEPHKerr(AEPHK_F_AEP_CTRL,
585 ERR_R_PASSED_NULL_PARAMETER);
590 AEPHKerr(AEPHK_F_AEP_CTRL,
591 AEPHK_R_ALREADY_LOADED);
594 return set_AEP_LIBNAME((const char*)p);
598 AEPHKerr(AEPHK_F_AEP_CTRL,AEPHK_R_CTRL_COMMAND_NOT_IMPLEMENTED);
602 static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
603 const BIGNUM *m, BN_CTX *ctx)
607 AEP_CONNECTION_HNDL hConnection;
610 r_len = BN_num_bits(m);
612 /* Perform in software if modulus is too large for hardware. */
614 if (r_len > max_key_len){
615 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
616 return BN_mod_exp(r, a, p, m, ctx);
619 /*Grab a connection from the pool*/
620 rv = aep_get_connection(&hConnection);
623 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_GET_HANDLE_FAILED);
624 return BN_mod_exp(r, a, p, m, ctx);
627 /*To the card with the mod exp*/
628 rv = p_AEP_ModExp(hConnection,(void*)a, (void*)p,(void*)m, (void*)r,NULL);
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);
637 /*Return the connection to the pool*/
638 rv = aep_return_connection(hConnection);
641 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_RETURN_CONNECTION_FAILED);
650 #ifndef OPENSSL_NO_RSA
651 static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
652 const BIGNUM *q, const BIGNUM *dmp1,
653 const BIGNUM *dmq1,const BIGNUM *iqmp, BN_CTX *ctx)
655 AEP_RV rv = AEP_R_OK;
656 AEP_CONNECTION_HNDL hConnection;
658 /*Grab a connection from the pool*/
659 rv = aep_get_connection(&hConnection);
662 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_GET_HANDLE_FAILED);
666 /*To the card with the mod exp*/
667 rv = p_AEP_ModExpCrt(hConnection,(void*)a, (void*)p, (void*)q, (void*)dmp1,(void*)dmq1,
668 (void*)iqmp,(void*)r,NULL);
671 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_MOD_EXP_CRT_FAILED);
672 rv = aep_close_connection(hConnection);
676 /*Return the connection to the pool*/
677 rv = aep_return_connection(hConnection);
680 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_RETURN_CONNECTION_FAILED);
691 static int aep_rand(unsigned char *buf,int len )
693 AEP_RV rv = AEP_R_OK;
694 AEP_CONNECTION_HNDL hConnection;
696 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
698 /*Can the request be serviced with what's already in the buffer?*/
699 if (len <= rand_block_bytes)
701 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
702 rand_block_bytes -= len;
703 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
706 /*If not the get another block of random bytes*/
708 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
710 rv = aep_get_connection(&hConnection);
713 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_HANDLE_FAILED);
717 if (len > RAND_BLK_SIZE)
719 rv = p_AEP_GenRandom(hConnection, len, 2, buf, NULL);
722 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
728 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
730 rv = p_AEP_GenRandom(hConnection, RAND_BLK_SIZE, 2, &rand_block[0], NULL);
733 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
738 rand_block_bytes = RAND_BLK_SIZE;
740 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
741 rand_block_bytes -= len;
743 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
746 rv = aep_return_connection(hConnection);
749 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_RETURN_CONNECTION_FAILED);
757 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
762 static int aep_rand_status(void)
768 #ifndef OPENSSL_NO_RSA
769 static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
772 AEP_RV rv = AEP_R_OK;
776 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP,AEPHK_R_NOT_LOADED);
780 /*See if we have all the necessary bits for a crt*/
781 if (rsa->q && rsa->dmp1 && rsa->dmq1 && rsa->iqmp)
783 rv = aep_mod_exp_crt(r0,I,rsa->p,rsa->q, rsa->dmp1,rsa->dmq1,rsa->iqmp,ctx);
785 if (rv == FAIL_TO_SW){
786 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
787 to_return = (*meth->rsa_mod_exp)(r0, I, rsa, ctx);
790 else if (rv != AEP_R_OK)
795 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)) goto end;
825 /* let t = a2 ^ p2 mod m */
826 if (!aep_mod_exp(&t,a2,p2,m,ctx)) goto end;
827 /* let rr = rr * t mod m */
828 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
835 static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
836 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
839 return aep_mod_exp(r, a, p, m, ctx);
843 #ifndef OPENSSL_NO_RSA
844 /* This function is aliased to mod_exp (with the mont stuff dropped). */
845 static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
846 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
848 return aep_mod_exp(r, a, p, m, ctx);
852 #ifndef OPENSSL_NO_DH
853 /* This function is aliased to mod_exp (with the dh and mont dropped). */
854 static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
855 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
858 return aep_mod_exp(r, a, p, m, ctx);
862 static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR phConnection)
865 AEP_RV rv = AEP_R_OK;
867 /*Get the current process id*/
870 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
874 /*Check if this is the first time this is being called from the current
876 if (recorded_pid != curr_pid)
878 /*Remember our pid so we can check if we're in a new process*/
879 recorded_pid = curr_pid;
881 /*Call Finalize to make sure we have not inherited some data
882 from a parent process*/
885 /*Initialise the AEP API*/
886 rv = p_AEP_Initialize(NULL);
890 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_INIT_FAILURE);
895 /*Set the AEP big num call back functions*/
896 rv = p_AEP_SetBNCallBacks(&GetBigNumSize, &MakeAEPBigNum,
901 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_SETBNCALLBACK_FAILURE);
907 /*Reset the rand byte count*/
908 rand_block_bytes = 0;
911 /*Init the structures*/
912 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
914 aep_app_conn_table[count].conn_state = NotConnected;
915 aep_app_conn_table[count].conn_hndl = 0;
918 /*Open a connection*/
919 rv = p_AEP_OpenConnection(phConnection);
923 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
928 aep_app_conn_table[0].conn_state = InUse;
929 aep_app_conn_table[0].conn_hndl = *phConnection;
932 /*Check the existing connections to see if we can find a free one*/
933 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
935 if (aep_app_conn_table[count].conn_state == Connected)
937 aep_app_conn_table[count].conn_state = InUse;
938 *phConnection = aep_app_conn_table[count].conn_hndl;
942 /*If no connections available, we're going to have to try
944 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
946 if (aep_app_conn_table[count].conn_state == NotConnected)
948 /*Open a connection*/
949 rv = p_AEP_OpenConnection(phConnection);
953 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
957 aep_app_conn_table[count].conn_state = InUse;
958 aep_app_conn_table[count].conn_hndl = *phConnection;
962 rv = AEP_R_GENERAL_ERROR;
964 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
969 static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection)
973 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
975 /*Find the connection item that matches this connection handle*/
976 for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
978 if (aep_app_conn_table[count].conn_hndl == hConnection)
980 aep_app_conn_table[count].conn_state = Connected;
985 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
990 static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection)
993 AEP_RV rv = AEP_R_OK;
995 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
997 /*Find the connection item that matches this connection handle*/
998 for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
1000 if (aep_app_conn_table[count].conn_hndl == hConnection)
1002 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1005 aep_app_conn_table[count].conn_state = NotConnected;
1006 aep_app_conn_table[count].conn_hndl = 0;
1012 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1016 static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use)
1019 AEP_RV rv = AEP_R_OK;
1022 if (use_engine_lock) CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1023 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
1025 switch (aep_app_conn_table[count].conn_state)
1028 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1031 aep_app_conn_table[count].conn_state = NotConnected;
1032 aep_app_conn_table[count].conn_hndl = 0;
1042 if (use_engine_lock) CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1046 /*BigNum call back functions, used to convert OpenSSL bignums into AEP bignums.
1047 Note only 32bit Openssl build support*/
1049 static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize)
1053 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1054 bn = (BIGNUM*) ArbBigNum;
1056 #ifdef SIXTY_FOUR_BIT_LONG
1057 *BigNumSize = bn->top << 3;
1059 /*Size of the bignum in bytes is equal to the bn->top (no of 32 bit
1060 words) multiplies by 4*/
1061 *BigNumSize = bn->top << 2;
1067 static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
1068 unsigned char* AEP_BigNum)
1072 #ifndef SIXTY_FOUR_BIT_LONG
1077 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1078 bn = (BIGNUM*) ArbBigNum;
1080 #ifdef SIXTY_FOUR_BIT_LONG
1081 memcpy(AEP_BigNum, bn->d, BigNumSize);
1083 /*Must copy data into a (monotone) least significant byte first format
1084 performing endian conversion if necessary*/
1085 for(i=0;i<bn->top;i++)
1087 buf = (unsigned char*)&bn->d[i];
1089 *((AEP_U32*)AEP_BigNum) = (AEP_U32)
1090 ((unsigned) buf[1] << 8 | buf[0]) |
1091 ((unsigned) buf[3] << 8 | buf[2]) << 16;
1100 /*Turn an AEP Big Num back to a user big num*/
1101 static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
1102 unsigned char* AEP_BigNum)
1105 #ifndef SIXTY_FOUR_BIT_LONG
1109 bn = (BIGNUM*)ArbBigNum;
1111 /*Expand the result bn so that it can hold our big num.
1113 bn_expand(bn, (int)(BigNumSize << 3));
1115 #ifdef SIXTY_FOUR_BIT_LONG
1116 bn->top = BigNumSize >> 3;
1118 if((BigNumSize & 7) != 0)
1121 memset(bn->d, 0, bn->top << 3);
1123 memcpy(bn->d, AEP_BigNum, BigNumSize);
1125 bn->top = BigNumSize >> 2;
1127 for(i=0;i<bn->top;i++)
1129 bn->d[i] = (AEP_U32)
1130 ((unsigned) AEP_BigNum[3] << 8 | AEP_BigNum[2]) << 16 |
1131 ((unsigned) AEP_BigNum[1] << 8 | AEP_BigNum[0]);
1139 #endif /* !OPENSSL_NO_HW_AEP */
1140 #endif /* !OPENSSL_NO_HW */