1 /* crypto/engine/hw_aep.c */
4 /* ====================================================================
5 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * licensing@OpenSSL.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
52 * This product includes cryptographic software written by Eric Young
53 * (eay@cryptsoft.com). This product includes software written by Tim
54 * Hudson (tjh@cryptsoft.com).
59 #include <openssl/bn.h>
62 #include <openssl/e_os2.h>
63 #if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__)
64 #include <sys/types.h>
71 #include <openssl/crypto.h>
72 #include <openssl/dso.h>
73 #include <openssl/engine.h>
74 #include <openssl/buffer.h>
77 #ifndef OPENSSL_NO_HW_AEP
81 #include "vendor_defns/aep.h"
84 #define AEP_LIB_NAME "aep engine"
85 #define FAIL_TO_SW 0x10101010
87 #include "e_aep_err.c"
89 static int aep_init(ENGINE
*e
);
90 static int aep_finish(ENGINE
*e
);
91 static int aep_ctrl(ENGINE
*e
, int cmd
, long i
, void *p
, void (*f
)(void));
92 static int aep_destroy(ENGINE
*e
);
94 static AEP_RV
aep_get_connection(AEP_CONNECTION_HNDL_PTR hConnection
);
95 static AEP_RV
aep_return_connection(AEP_CONNECTION_HNDL hConnection
);
96 static AEP_RV
aep_close_connection(AEP_CONNECTION_HNDL hConnection
);
97 static AEP_RV
aep_close_all_connections(int use_engine_lock
, int *in_use
);
100 static int aep_mod_exp(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
101 const BIGNUM
*m
, BN_CTX
*ctx
);
103 static AEP_RV
aep_mod_exp_crt(BIGNUM
*r
,const BIGNUM
*a
, const BIGNUM
*p
,
104 const BIGNUM
*q
, const BIGNUM
*dmp1
,const BIGNUM
*dmq1
,
105 const BIGNUM
*iqmp
, BN_CTX
*ctx
);
108 #ifndef OPENSSL_NO_RSA
109 static int aep_rsa_mod_exp(BIGNUM
*r0
, const BIGNUM
*I
, RSA
*rsa
);
112 /* This function is aliased to mod_exp (with the mont stuff dropped). */
113 static int aep_mod_exp_mont(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
114 const BIGNUM
*m
, BN_CTX
*ctx
, BN_MONT_CTX
*m_ctx
);
117 #ifndef OPENSSL_NO_DSA
118 static int aep_dsa_mod_exp(DSA
*dsa
, BIGNUM
*rr
, BIGNUM
*a1
,
119 BIGNUM
*p1
, BIGNUM
*a2
, BIGNUM
*p2
, BIGNUM
*m
,
120 BN_CTX
*ctx
, BN_MONT_CTX
*in_mont
);
122 static int aep_mod_exp_dsa(DSA
*dsa
, BIGNUM
*r
, BIGNUM
*a
,
123 const BIGNUM
*p
, const BIGNUM
*m
, BN_CTX
*ctx
,
128 /* This function is aliased to mod_exp (with the DH and mont dropped). */
129 #ifndef OPENSSL_NO_DH
130 static int aep_mod_exp_dh(const DH
*dh
, BIGNUM
*r
, const BIGNUM
*a
,
131 const BIGNUM
*p
, const BIGNUM
*m
, BN_CTX
*ctx
, BN_MONT_CTX
*m_ctx
);
136 static int aep_rand(unsigned char *buf
, int num
);
137 static int aep_rand_status(void);
140 /* Bignum conversion stuff */
141 static AEP_RV
GetBigNumSize(AEP_VOID_PTR ArbBigNum
, AEP_U32
* BigNumSize
);
142 static AEP_RV
MakeAEPBigNum(AEP_VOID_PTR ArbBigNum
, AEP_U32 BigNumSize
,
143 unsigned char* AEP_BigNum
);
144 static AEP_RV
ConvertAEPBigNum(void* ArbBigNum
, AEP_U32 BigNumSize
,
145 unsigned char* AEP_BigNum
);
147 /* The definitions for control commands specific to this engine */
148 #define AEP_CMD_SO_PATH ENGINE_CMD_BASE
149 static const ENGINE_CMD_DEFN aep_cmd_defns
[] =
153 "Specifies the path to the 'aep' shared library",
154 ENGINE_CMD_FLAG_STRING
159 #ifndef OPENSSL_NO_RSA
160 /* Our internal RSA_METHOD that we provide pointers to */
161 static RSA_METHOD aep_rsa
=
164 NULL
, /*rsa_pub_encrypt*/
165 NULL
, /*rsa_pub_decrypt*/
166 NULL
, /*rsa_priv_encrypt*/
167 NULL
, /*rsa_priv_encrypt*/
168 aep_rsa_mod_exp
, /*rsa_mod_exp*/
169 aep_mod_exp_mont
, /*bn_mod_exp*/
180 #ifndef OPENSSL_NO_DSA
181 /* Our internal DSA_METHOD that we provide pointers to */
182 static DSA_METHOD aep_dsa
=
185 NULL
, /* dsa_do_sign */
186 NULL
, /* dsa_sign_setup */
187 NULL
, /* dsa_do_verify */
188 aep_dsa_mod_exp
, /* dsa_mod_exp */
189 aep_mod_exp_dsa
, /* bn_mod_exp */
194 NULL
, /* dsa_paramgen */
195 NULL
/* dsa_keygen */
199 #ifndef OPENSSL_NO_DH
200 /* Our internal DH_METHOD that we provide pointers to */
201 static DH_METHOD aep_dh
=
216 /* our internal RAND_method that we provide pointers to */
217 static RAND_METHOD aep_random
=
219 /*"AEP RAND method", */
229 /*Define an array of structures to hold connections*/
230 static AEP_CONNECTION_ENTRY aep_app_conn_table
[MAX_PROCESS_CONNECTIONS
];
232 /*Used to determine if this is a new process*/
233 static pid_t recorded_pid
= 0;
236 static AEP_U8 rand_block
[RAND_BLK_SIZE
];
237 static AEP_U32 rand_block_bytes
= 0;
240 /* Constants used when creating the ENGINE */
241 static const char *engine_aep_id
= "aep";
242 static const char *engine_aep_name
= "Aep hardware engine support";
244 static int max_key_len
= 2176;
247 /* This internal function is used by ENGINE_aep() and possibly by the
248 * "dynamic" ENGINE support too */
249 static int bind_aep(ENGINE
*e
)
251 #ifndef OPENSSL_NO_RSA
252 const RSA_METHOD
*meth1
;
254 #ifndef OPENSSL_NO_DSA
255 const DSA_METHOD
*meth2
;
257 #ifndef OPENSSL_NO_DH
258 const DH_METHOD
*meth3
;
261 if(!ENGINE_set_id(e
, engine_aep_id
) ||
262 !ENGINE_set_name(e
, engine_aep_name
) ||
263 #ifndef OPENSSL_NO_RSA
264 !ENGINE_set_RSA(e
, &aep_rsa
) ||
266 #ifndef OPENSSL_NO_DSA
267 !ENGINE_set_DSA(e
, &aep_dsa
) ||
269 #ifndef OPENSSL_NO_DH
270 !ENGINE_set_DH(e
, &aep_dh
) ||
273 !ENGINE_set_RAND(e
, &aep_random
) ||
275 !ENGINE_set_init_function(e
, aep_init
) ||
276 !ENGINE_set_destroy_function(e
, aep_destroy
) ||
277 !ENGINE_set_finish_function(e
, aep_finish
) ||
278 !ENGINE_set_ctrl_function(e
, aep_ctrl
) ||
279 !ENGINE_set_cmd_defns(e
, aep_cmd_defns
))
282 #ifndef OPENSSL_NO_RSA
283 /* We know that the "PKCS1_SSLeay()" functions hook properly
284 * to the aep-specific mod_exp and mod_exp_crt so we use
285 * those functions. NB: We don't use ENGINE_openssl() or
286 * anything "more generic" because something like the RSAref
287 * code may not hook properly, and if you own one of these
288 * cards then you have the right to do RSA operations on it
290 meth1
= RSA_PKCS1_SSLeay();
291 aep_rsa
.rsa_pub_enc
= meth1
->rsa_pub_enc
;
292 aep_rsa
.rsa_pub_dec
= meth1
->rsa_pub_dec
;
293 aep_rsa
.rsa_priv_enc
= meth1
->rsa_priv_enc
;
294 aep_rsa
.rsa_priv_dec
= meth1
->rsa_priv_dec
;
298 #ifndef OPENSSL_NO_DSA
299 /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
301 meth2
= DSA_OpenSSL();
302 aep_dsa
.dsa_do_sign
= meth2
->dsa_do_sign
;
303 aep_dsa
.dsa_sign_setup
= meth2
->dsa_sign_setup
;
304 aep_dsa
.dsa_do_verify
= meth2
->dsa_do_verify
;
306 aep_dsa
= *DSA_get_default_method();
307 aep_dsa
.dsa_mod_exp
= aep_dsa_mod_exp
;
308 aep_dsa
.bn_mod_exp
= aep_mod_exp_dsa
;
311 #ifndef OPENSSL_NO_DH
312 /* Much the same for Diffie-Hellman */
313 meth3
= DH_OpenSSL();
314 aep_dh
.generate_key
= meth3
->generate_key
;
315 aep_dh
.compute_key
= meth3
->compute_key
;
316 aep_dh
.bn_mod_exp
= meth3
->bn_mod_exp
;
319 /* Ensure the aep error handling is set up */
320 ERR_load_AEPHK_strings();
325 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
326 static int bind_helper(ENGINE
*e
, const char *id
)
328 if(id
&& (strcmp(id
, engine_aep_id
) != 0))
334 IMPLEMENT_DYNAMIC_CHECK_FN()
335 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper
)
337 static ENGINE
*engine_aep(void)
339 ENGINE
*ret
= ENGINE_new();
350 void ENGINE_load_aep(void)
352 /* Copied from eng_[openssl|dyn].c */
353 ENGINE
*toadd
= engine_aep();
361 /* This is a process-global DSO handle used for loading and unloading
362 * the Aep library. NB: This is only set (or unset) during an
363 * init() or finish() call (reference counts permitting) and they're
364 * operating with global locks, so this should be thread-safe
366 static DSO
*aep_dso
= NULL
;
368 /* These are the static string constants for the DSO file name and the function
369 * symbol names to bind to.
371 static const char *AEP_LIBNAME
= NULL
;
372 static const char *get_AEP_LIBNAME(void)
378 static void free_AEP_LIBNAME(void)
381 OPENSSL_free((void*)AEP_LIBNAME
);
384 static long set_AEP_LIBNAME(const char *name
)
387 return ((AEP_LIBNAME
= BUF_strdup(name
)) != NULL
? 1 : 0);
390 static const char *AEP_F1
= "AEP_ModExp";
391 static const char *AEP_F2
= "AEP_ModExpCrt";
393 static const char *AEP_F3
= "AEP_GenRandom";
395 static const char *AEP_F4
= "AEP_Finalize";
396 static const char *AEP_F5
= "AEP_Initialize";
397 static const char *AEP_F6
= "AEP_OpenConnection";
398 static const char *AEP_F7
= "AEP_SetBNCallBacks";
399 static const char *AEP_F8
= "AEP_CloseConnection";
401 /* These are the function pointers that are (un)set when the library has
402 * successfully (un)loaded. */
403 static t_AEP_OpenConnection
*p_AEP_OpenConnection
= NULL
;
404 static t_AEP_CloseConnection
*p_AEP_CloseConnection
= NULL
;
405 static t_AEP_ModExp
*p_AEP_ModExp
= NULL
;
406 static t_AEP_ModExpCrt
*p_AEP_ModExpCrt
= NULL
;
408 static t_AEP_GenRandom
*p_AEP_GenRandom
= NULL
;
410 static t_AEP_Initialize
*p_AEP_Initialize
= NULL
;
411 static t_AEP_Finalize
*p_AEP_Finalize
= NULL
;
412 static t_AEP_SetBNCallBacks
*p_AEP_SetBNCallBacks
= NULL
;
414 /* (de)initialisation functions. */
415 static int aep_init(ENGINE
*e
)
423 t_AEP_Initialize
*p5
;
424 t_AEP_OpenConnection
*p6
;
425 t_AEP_SetBNCallBacks
*p7
;
426 t_AEP_CloseConnection
*p8
;
432 AEPHKerr(AEPHK_F_AEP_INIT
,AEPHK_R_ALREADY_LOADED
);
435 /* Attempt to load libaep.so. */
437 aep_dso
= DSO_load(NULL
, get_AEP_LIBNAME(), NULL
, 0);
441 AEPHKerr(AEPHK_F_AEP_INIT
,AEPHK_R_NOT_LOADED
);
445 if( !(p1
= (t_AEP_ModExp
*) DSO_bind_func( aep_dso
,AEP_F1
)) ||
446 !(p2
= (t_AEP_ModExpCrt
*) DSO_bind_func( aep_dso
,AEP_F2
)) ||
448 !(p3
= (t_AEP_GenRandom
*) DSO_bind_func( aep_dso
,AEP_F3
)) ||
450 !(p4
= (t_AEP_Finalize
*) DSO_bind_func( aep_dso
,AEP_F4
)) ||
451 !(p5
= (t_AEP_Initialize
*) DSO_bind_func( aep_dso
,AEP_F5
)) ||
452 !(p6
= (t_AEP_OpenConnection
*) DSO_bind_func( aep_dso
,AEP_F6
)) ||
453 !(p7
= (t_AEP_SetBNCallBacks
*) DSO_bind_func( aep_dso
,AEP_F7
)) ||
454 !(p8
= (t_AEP_CloseConnection
*) DSO_bind_func( aep_dso
,AEP_F8
)))
456 AEPHKerr(AEPHK_F_AEP_INIT
,AEPHK_R_NOT_LOADED
);
460 /* Copy the pointers */
463 p_AEP_ModExpCrt
= p2
;
465 p_AEP_GenRandom
= p3
;
468 p_AEP_Initialize
= p5
;
469 p_AEP_OpenConnection
= p6
;
470 p_AEP_SetBNCallBacks
= p7
;
471 p_AEP_CloseConnection
= p8
;
482 p_AEP_OpenConnection
= NULL
;
484 p_AEP_ModExpCrt
= NULL
;
486 p_AEP_GenRandom
= NULL
;
488 p_AEP_Initialize
= NULL
;
489 p_AEP_Finalize
= NULL
;
490 p_AEP_SetBNCallBacks
= NULL
;
491 p_AEP_CloseConnection
= NULL
;
496 /* Destructor (complements the "ENGINE_aep()" constructor) */
497 static int aep_destroy(ENGINE
*e
)
500 ERR_unload_AEPHK_strings();
504 static int aep_finish(ENGINE
*e
)
506 int to_return
= 0, in_use
;
511 AEPHKerr(AEPHK_F_AEP_FINISH
,AEPHK_R_NOT_LOADED
);
515 rv
= aep_close_all_connections(0, &in_use
);
518 AEPHKerr(AEPHK_F_AEP_FINISH
,AEPHK_R_CLOSE_HANDLES_FAILED
);
523 AEPHKerr(AEPHK_F_AEP_FINISH
,AEPHK_R_CONNECTIONS_IN_USE
);
527 rv
= p_AEP_Finalize();
530 AEPHKerr(AEPHK_F_AEP_FINISH
,AEPHK_R_FINALIZE_FAILED
);
534 if(!DSO_free(aep_dso
))
536 AEPHKerr(AEPHK_F_AEP_FINISH
,AEPHK_R_UNIT_FAILURE
);
541 p_AEP_CloseConnection
= NULL
;
542 p_AEP_OpenConnection
= NULL
;
544 p_AEP_ModExpCrt
= NULL
;
546 p_AEP_GenRandom
= NULL
;
548 p_AEP_Initialize
= NULL
;
549 p_AEP_Finalize
= NULL
;
550 p_AEP_SetBNCallBacks
= NULL
;
557 static int aep_ctrl(ENGINE
*e
, int cmd
, long i
, void *p
, void (*f
)(void))
559 int initialised
= ((aep_dso
== NULL
) ? 0 : 1);
562 case AEP_CMD_SO_PATH
:
565 AEPHKerr(AEPHK_F_AEP_CTRL
,
566 ERR_R_PASSED_NULL_PARAMETER
);
571 AEPHKerr(AEPHK_F_AEP_CTRL
,
572 AEPHK_R_ALREADY_LOADED
);
575 return set_AEP_LIBNAME((const char*)p
);
579 AEPHKerr(AEPHK_F_AEP_CTRL
,AEPHK_R_CTRL_COMMAND_NOT_IMPLEMENTED
);
583 static int aep_mod_exp(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
584 const BIGNUM
*m
, BN_CTX
*ctx
)
588 AEP_CONNECTION_HNDL hConnection
;
591 r_len
= BN_num_bits(m
);
593 /* Perform in software if modulus is too large for hardware. */
595 if (r_len
> max_key_len
){
596 AEPHKerr(AEPHK_F_AEP_MOD_EXP
, AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL
);
597 return BN_mod_exp(r
, a
, p
, m
, ctx
);
600 /*Grab a connection from the pool*/
601 rv
= aep_get_connection(&hConnection
);
604 AEPHKerr(AEPHK_F_AEP_MOD_EXP
,AEPHK_R_GET_HANDLE_FAILED
);
605 return BN_mod_exp(r
, a
, p
, m
, ctx
);
608 /*To the card with the mod exp*/
609 rv
= p_AEP_ModExp(hConnection
,(void*)a
, (void*)p
,(void*)m
, (void*)r
,NULL
);
613 AEPHKerr(AEPHK_F_AEP_MOD_EXP
,AEPHK_R_MOD_EXP_FAILED
);
614 rv
= aep_close_connection(hConnection
);
615 return BN_mod_exp(r
, a
, p
, m
, ctx
);
618 /*Return the connection to the pool*/
619 rv
= aep_return_connection(hConnection
);
622 AEPHKerr(AEPHK_F_AEP_RAND
,AEPHK_R_RETURN_CONNECTION_FAILED
);
631 static AEP_RV
aep_mod_exp_crt(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
632 const BIGNUM
*q
, const BIGNUM
*dmp1
,
633 const BIGNUM
*dmq1
,const BIGNUM
*iqmp
, BN_CTX
*ctx
)
635 AEP_RV rv
= AEP_R_OK
;
636 AEP_CONNECTION_HNDL hConnection
;
638 /*Grab a connection from the pool*/
639 rv
= aep_get_connection(&hConnection
);
642 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT
,AEPHK_R_GET_HANDLE_FAILED
);
646 /*To the card with the mod exp*/
647 rv
= p_AEP_ModExpCrt(hConnection
,(void*)a
, (void*)p
, (void*)q
, (void*)dmp1
,(void*)dmq1
,
648 (void*)iqmp
,(void*)r
,NULL
);
651 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT
,AEPHK_R_MOD_EXP_CRT_FAILED
);
652 rv
= aep_close_connection(hConnection
);
656 /*Return the connection to the pool*/
657 rv
= aep_return_connection(hConnection
);
660 AEPHKerr(AEPHK_F_AEP_RAND
,AEPHK_R_RETURN_CONNECTION_FAILED
);
670 static int aep_rand(unsigned char *buf
,int len
)
672 AEP_RV rv
= AEP_R_OK
;
673 AEP_CONNECTION_HNDL hConnection
;
675 CRYPTO_w_lock(CRYPTO_LOCK_RAND
);
677 /*Can the request be serviced with what's already in the buffer?*/
678 if (len
<= rand_block_bytes
)
680 memcpy(buf
, &rand_block
[RAND_BLK_SIZE
- rand_block_bytes
], len
);
681 rand_block_bytes
-= len
;
682 CRYPTO_w_unlock(CRYPTO_LOCK_RAND
);
685 /*If not the get another block of random bytes*/
687 CRYPTO_w_unlock(CRYPTO_LOCK_RAND
);
689 rv
= aep_get_connection(&hConnection
);
692 AEPHKerr(AEPHK_F_AEP_RAND
,AEPHK_R_GET_HANDLE_FAILED
);
696 if (len
> RAND_BLK_SIZE
)
698 rv
= p_AEP_GenRandom(hConnection
, len
, 2, buf
, NULL
);
701 AEPHKerr(AEPHK_F_AEP_RAND
,AEPHK_R_GET_RANDOM_FAILED
);
707 CRYPTO_w_lock(CRYPTO_LOCK_RAND
);
709 rv
= p_AEP_GenRandom(hConnection
, RAND_BLK_SIZE
, 2, &rand_block
[0], NULL
);
712 AEPHKerr(AEPHK_F_AEP_RAND
,AEPHK_R_GET_RANDOM_FAILED
);
717 rand_block_bytes
= RAND_BLK_SIZE
;
719 memcpy(buf
, &rand_block
[RAND_BLK_SIZE
- rand_block_bytes
], len
);
720 rand_block_bytes
-= len
;
722 CRYPTO_w_unlock(CRYPTO_LOCK_RAND
);
725 rv
= aep_return_connection(hConnection
);
728 AEPHKerr(AEPHK_F_AEP_RAND
,AEPHK_R_RETURN_CONNECTION_FAILED
);
736 CRYPTO_w_unlock(CRYPTO_LOCK_RAND
);
741 static int aep_rand_status(void)
747 #ifndef OPENSSL_NO_RSA
748 static int aep_rsa_mod_exp(BIGNUM
*r0
, const BIGNUM
*I
, RSA
*rsa
)
752 AEP_RV rv
= AEP_R_OK
;
754 if ((ctx
= BN_CTX_new()) == NULL
)
759 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP
,AEPHK_R_NOT_LOADED
);
763 /*See if we have all the necessary bits for a crt*/
764 if (rsa
->q
&& rsa
->dmp1
&& rsa
->dmq1
&& rsa
->iqmp
)
766 rv
= aep_mod_exp_crt(r0
,I
,rsa
->p
,rsa
->q
, rsa
->dmp1
,rsa
->dmq1
,rsa
->iqmp
,ctx
);
768 if (rv
== FAIL_TO_SW
){
769 const RSA_METHOD
*meth
= RSA_PKCS1_SSLeay();
770 to_return
= (*meth
->rsa_mod_exp
)(r0
, I
, rsa
);
773 else if (rv
!= AEP_R_OK
)
778 if (!rsa
->d
|| !rsa
->n
)
780 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP
,AEPHK_R_MISSING_KEY_COMPONENTS
);
784 rv
= aep_mod_exp(r0
,I
,rsa
->d
,rsa
->n
,ctx
);
799 #ifndef OPENSSL_NO_DSA
800 static int aep_dsa_mod_exp(DSA
*dsa
, BIGNUM
*rr
, BIGNUM
*a1
,
801 BIGNUM
*p1
, BIGNUM
*a2
, BIGNUM
*p2
, BIGNUM
*m
,
802 BN_CTX
*ctx
, BN_MONT_CTX
*in_mont
)
808 /* let rr = a1 ^ p1 mod m */
809 if (!aep_mod_exp(rr
,a1
,p1
,m
,ctx
)) goto end
;
810 /* let t = a2 ^ p2 mod m */
811 if (!aep_mod_exp(&t
,a2
,p2
,m
,ctx
)) goto end
;
812 /* let rr = rr * t mod m */
813 if (!BN_mod_mul(rr
,rr
,&t
,m
,ctx
)) goto end
;
820 static int aep_mod_exp_dsa(DSA
*dsa
, BIGNUM
*r
, BIGNUM
*a
,
821 const BIGNUM
*p
, const BIGNUM
*m
, BN_CTX
*ctx
,
824 return aep_mod_exp(r
, a
, p
, m
, ctx
);
828 /* This function is aliased to mod_exp (with the mont stuff dropped). */
829 static int aep_mod_exp_mont(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
830 const BIGNUM
*m
, BN_CTX
*ctx
, BN_MONT_CTX
*m_ctx
)
832 return aep_mod_exp(r
, a
, p
, m
, ctx
);
835 #ifndef OPENSSL_NO_DH
836 /* This function is aliased to mod_exp (with the dh and mont dropped). */
837 static int aep_mod_exp_dh(const DH
*dh
, BIGNUM
*r
, const BIGNUM
*a
,
838 const BIGNUM
*p
, const BIGNUM
*m
, BN_CTX
*ctx
,
841 return aep_mod_exp(r
, a
, p
, m
, ctx
);
845 static AEP_RV
aep_get_connection(AEP_CONNECTION_HNDL_PTR phConnection
)
848 AEP_RV rv
= AEP_R_OK
;
850 /*Get the current process id*/
853 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE
);
857 /*Check if this is the first time this is being called from the current
859 if (recorded_pid
!= curr_pid
)
861 /*Remember our pid so we can check if we're in a new process*/
862 recorded_pid
= curr_pid
;
864 /*Call Finalize to make sure we have not inherited some data
865 from a parent process*/
868 /*Initialise the AEP API*/
869 rv
= p_AEP_Initialize(NULL
);
873 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION
,AEPHK_R_INIT_FAILURE
);
878 /*Set the AEP big num call back functions*/
879 rv
= p_AEP_SetBNCallBacks(&GetBigNumSize
, &MakeAEPBigNum
,
884 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION
,AEPHK_R_SETBNCALLBACK_FAILURE
);
890 /*Reset the rand byte count*/
891 rand_block_bytes
= 0;
894 /*Init the structures*/
895 for (count
= 0;count
< MAX_PROCESS_CONNECTIONS
;count
++)
897 aep_app_conn_table
[count
].conn_state
= NotConnected
;
898 aep_app_conn_table
[count
].conn_hndl
= 0;
901 /*Open a connection*/
902 rv
= p_AEP_OpenConnection(phConnection
);
906 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION
,AEPHK_R_UNIT_FAILURE
);
911 aep_app_conn_table
[0].conn_state
= InUse
;
912 aep_app_conn_table
[0].conn_hndl
= *phConnection
;
915 /*Check the existing connections to see if we can find a free one*/
916 for (count
= 0;count
< MAX_PROCESS_CONNECTIONS
;count
++)
918 if (aep_app_conn_table
[count
].conn_state
== Connected
)
920 aep_app_conn_table
[count
].conn_state
= InUse
;
921 *phConnection
= aep_app_conn_table
[count
].conn_hndl
;
925 /*If no connections available, we're going to have to try
927 for (count
= 0;count
< MAX_PROCESS_CONNECTIONS
;count
++)
929 if (aep_app_conn_table
[count
].conn_state
== NotConnected
)
931 /*Open a connection*/
932 rv
= p_AEP_OpenConnection(phConnection
);
936 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION
,AEPHK_R_UNIT_FAILURE
);
940 aep_app_conn_table
[count
].conn_state
= InUse
;
941 aep_app_conn_table
[count
].conn_hndl
= *phConnection
;
945 rv
= AEP_R_GENERAL_ERROR
;
947 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE
);
952 static AEP_RV
aep_return_connection(AEP_CONNECTION_HNDL hConnection
)
956 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE
);
958 /*Find the connection item that matches this connection handle*/
959 for(count
= 0;count
< MAX_PROCESS_CONNECTIONS
;count
++)
961 if (aep_app_conn_table
[count
].conn_hndl
== hConnection
)
963 aep_app_conn_table
[count
].conn_state
= Connected
;
968 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE
);
973 static AEP_RV
aep_close_connection(AEP_CONNECTION_HNDL hConnection
)
976 AEP_RV rv
= AEP_R_OK
;
978 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE
);
980 /*Find the connection item that matches this connection handle*/
981 for(count
= 0;count
< MAX_PROCESS_CONNECTIONS
;count
++)
983 if (aep_app_conn_table
[count
].conn_hndl
== hConnection
)
985 rv
= p_AEP_CloseConnection(aep_app_conn_table
[count
].conn_hndl
);
988 aep_app_conn_table
[count
].conn_state
= NotConnected
;
989 aep_app_conn_table
[count
].conn_hndl
= 0;
995 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE
);
999 static AEP_RV
aep_close_all_connections(int use_engine_lock
, int *in_use
)
1002 AEP_RV rv
= AEP_R_OK
;
1005 if (use_engine_lock
) CRYPTO_w_lock(CRYPTO_LOCK_ENGINE
);
1006 for (count
= 0;count
< MAX_PROCESS_CONNECTIONS
;count
++)
1008 switch (aep_app_conn_table
[count
].conn_state
)
1011 rv
= p_AEP_CloseConnection(aep_app_conn_table
[count
].conn_hndl
);
1014 aep_app_conn_table
[count
].conn_state
= NotConnected
;
1015 aep_app_conn_table
[count
].conn_hndl
= 0;
1025 if (use_engine_lock
) CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE
);
1029 /*BigNum call back functions, used to convert OpenSSL bignums into AEP bignums.
1030 Note only 32bit Openssl build support*/
1032 static AEP_RV
GetBigNumSize(AEP_VOID_PTR ArbBigNum
, AEP_U32
* BigNumSize
)
1036 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1037 bn
= (BIGNUM
*) ArbBigNum
;
1039 #ifdef SIXTY_FOUR_BIT_LONG
1040 *BigNumSize
= bn
->top
<< 3;
1042 /*Size of the bignum in bytes is equal to the bn->top (no of 32 bit
1043 words) multiplies by 4*/
1044 *BigNumSize
= bn
->top
<< 2;
1050 static AEP_RV
MakeAEPBigNum(AEP_VOID_PTR ArbBigNum
, AEP_U32 BigNumSize
,
1051 unsigned char* AEP_BigNum
)
1055 #ifndef SIXTY_FOUR_BIT_LONG
1060 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1061 bn
= (BIGNUM
*) ArbBigNum
;
1063 #ifdef SIXTY_FOUR_BIT_LONG
1064 memcpy(AEP_BigNum
, bn
->d
, BigNumSize
);
1066 /*Must copy data into a (monotone) least significant byte first format
1067 performing endian conversion if necessary*/
1068 for(i
=0;i
<bn
->top
;i
++)
1070 buf
= (unsigned char*)&bn
->d
[i
];
1072 *((AEP_U32
*)AEP_BigNum
) = (AEP_U32
)
1073 ((unsigned) buf
[1] << 8 | buf
[0]) |
1074 ((unsigned) buf
[3] << 8 | buf
[2]) << 16;
1083 /*Turn an AEP Big Num back to a user big num*/
1084 static AEP_RV
ConvertAEPBigNum(void* ArbBigNum
, AEP_U32 BigNumSize
,
1085 unsigned char* AEP_BigNum
)
1088 #ifndef SIXTY_FOUR_BIT_LONG
1092 bn
= (BIGNUM
*)ArbBigNum
;
1094 /*Expand the result bn so that it can hold our big num.
1096 bn_expand(bn
, (int)(BigNumSize
<< 3));
1098 #ifdef SIXTY_FOUR_BIT_LONG
1099 bn
->top
= BigNumSize
>> 3;
1101 if((BigNumSize
& 7) != 0)
1104 memset(bn
->d
, 0, bn
->top
<< 3);
1106 memcpy(bn
->d
, AEP_BigNum
, BigNumSize
);
1108 bn
->top
= BigNumSize
>> 2;
1110 for(i
=0;i
<bn
->top
;i
++)
1112 bn
->d
[i
] = (AEP_U32
)
1113 ((unsigned) AEP_BigNum
[3] << 8 | AEP_BigNum
[2]) << 16 |
1114 ((unsigned) AEP_BigNum
[1] << 8 | AEP_BigNum
[0]);
1122 #endif /* !OPENSSL_NO_HW_AEP */
1123 #endif /* !OPENSSL_NO_HW */