1 /* crypto/engine/hw_ubsec.c */
2 /* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
5 * Cloned shamelessly by Joe Tardo.
7 /* ====================================================================
8 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in
19 * the documentation and/or other materials provided with the
22 * 3. All advertising materials mentioning features or use of this
23 * software must display the following acknowledgment:
24 * "This product includes software developed by the OpenSSL Project
25 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
27 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
28 * endorse or promote products derived from this software without
29 * prior written permission. For written permission, please contact
30 * licensing@OpenSSL.org.
32 * 5. Products derived from this software may not be called "OpenSSL"
33 * nor may "OpenSSL" appear in their names without prior written
34 * permission of the OpenSSL Project.
36 * 6. Redistributions of any form whatsoever must retain the following
38 * "This product includes software developed by the OpenSSL Project
39 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
41 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
42 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
44 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
47 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
48 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
50 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
51 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
52 * OF THE POSSIBILITY OF SUCH DAMAGE.
53 * ====================================================================
55 * This product includes cryptographic software written by Eric Young
56 * (eay@cryptsoft.com). This product includes software written by Tim
57 * Hudson (tjh@cryptsoft.com).
63 #include <openssl/crypto.h>
64 #include <openssl/buffer.h>
65 #include <openssl/dso.h>
66 #include <openssl/engine.h>
67 #ifndef OPENSSL_NO_RSA
68 #include <openssl/rsa.h>
70 #ifndef OPENSSL_NO_DSA
71 #include <openssl/dsa.h>
74 #include <openssl/dh.h>
76 #include <openssl/bn.h>
79 #ifndef OPENSSL_NO_HW_UBSEC
84 #include "vendor_defns/hw_ubsec.h"
87 #define UBSEC_LIB_NAME "ubsec engine"
88 #include "e_ubsec_err.c"
90 #define FAIL_TO_SOFTWARE -15
92 static int ubsec_destroy(ENGINE
*e
);
93 static int ubsec_init(ENGINE
*e
);
94 static int ubsec_finish(ENGINE
*e
);
95 static int ubsec_ctrl(ENGINE
*e
, int cmd
, long i
, void *p
, void (*f
)(void));
96 static int ubsec_mod_exp(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
97 const BIGNUM
*m
, BN_CTX
*ctx
);
98 #ifndef OPENSSL_NO_RSA
99 static int ubsec_mod_exp_crt(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
100 const BIGNUM
*q
, const BIGNUM
*dp
,
101 const BIGNUM
*dq
, const BIGNUM
*qinv
, BN_CTX
*ctx
);
102 static int ubsec_rsa_mod_exp(BIGNUM
*r0
, const BIGNUM
*I
, RSA
*rsa
, BN_CTX
*ctx
);
103 static int ubsec_mod_exp_mont(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
104 const BIGNUM
*m
, BN_CTX
*ctx
, BN_MONT_CTX
*m_ctx
);
106 #ifndef OPENSSL_NO_DSA
108 static int ubsec_dsa_mod_exp(DSA
*dsa
, BIGNUM
*rr
, BIGNUM
*a1
,
109 BIGNUM
*p1
, BIGNUM
*a2
, BIGNUM
*p2
, BIGNUM
*m
,
110 BN_CTX
*ctx
, BN_MONT_CTX
*in_mont
);
111 static int ubsec_mod_exp_dsa(DSA
*dsa
, BIGNUM
*r
, BIGNUM
*a
,
112 const BIGNUM
*p
, const BIGNUM
*m
, BN_CTX
*ctx
,
115 static DSA_SIG
*ubsec_dsa_do_sign(const unsigned char *dgst
, int dlen
, DSA
*dsa
);
116 static int ubsec_dsa_verify(const unsigned char *dgst
, int dgst_len
,
117 DSA_SIG
*sig
, DSA
*dsa
);
119 #ifndef OPENSSL_NO_DH
120 static int ubsec_mod_exp_dh(const DH
*dh
, BIGNUM
*r
, const BIGNUM
*a
,
121 const BIGNUM
*p
, const BIGNUM
*m
, BN_CTX
*ctx
,
123 static int ubsec_dh_compute_key(unsigned char *key
,const BIGNUM
*pub_key
,DH
*dh
);
124 static int ubsec_dh_generate_key(DH
*dh
);
128 static int ubsec_rand_bytes(unsigned char *buf
, int num
);
129 static int ubsec_rand_status(void);
132 #define UBSEC_CMD_SO_PATH ENGINE_CMD_BASE
133 static const ENGINE_CMD_DEFN ubsec_cmd_defns
[] = {
136 "Specifies the path to the 'ubsec' shared library",
137 ENGINE_CMD_FLAG_STRING
},
141 #ifndef OPENSSL_NO_RSA
142 /* Our internal RSA_METHOD that we provide pointers to */
143 static RSA_METHOD ubsec_rsa
=
162 #ifndef OPENSSL_NO_DSA
163 /* Our internal DSA_METHOD that we provide pointers to */
164 static DSA_METHOD ubsec_dsa
=
167 ubsec_dsa_do_sign
, /* dsa_do_sign */
168 NULL
, /* dsa_sign_setup */
169 ubsec_dsa_verify
, /* dsa_do_verify */
170 NULL
, /* ubsec_dsa_mod_exp */ /* dsa_mod_exp */
171 NULL
, /* ubsec_mod_exp_dsa */ /* bn_mod_exp */
176 NULL
, /* dsa_paramgen */
177 NULL
/* dsa_keygen */
181 #ifndef OPENSSL_NO_DH
182 /* Our internal DH_METHOD that we provide pointers to */
183 static DH_METHOD ubsec_dh
=
186 ubsec_dh_generate_key
,
187 ubsec_dh_compute_key
,
197 /* Constants used when creating the ENGINE */
198 static const char *engine_ubsec_id
= "ubsec";
199 static const char *engine_ubsec_name
= "UBSEC hardware engine support";
201 /* This internal function is used by ENGINE_ubsec() and possibly by the
202 * "dynamic" ENGINE support too */
203 static int bind_helper(ENGINE
*e
)
205 #ifndef OPENSSL_NO_RSA
206 const RSA_METHOD
*meth1
;
208 #ifndef OPENSSL_NO_DH
209 #ifndef HAVE_UBSEC_DH
210 const DH_METHOD
*meth3
;
211 #endif /* HAVE_UBSEC_DH */
213 if(!ENGINE_set_id(e
, engine_ubsec_id
) ||
214 !ENGINE_set_name(e
, engine_ubsec_name
) ||
215 #ifndef OPENSSL_NO_RSA
216 !ENGINE_set_RSA(e
, &ubsec_rsa
) ||
218 #ifndef OPENSSL_NO_DSA
219 !ENGINE_set_DSA(e
, &ubsec_dsa
) ||
221 #ifndef OPENSSL_NO_DH
222 !ENGINE_set_DH(e
, &ubsec_dh
) ||
224 !ENGINE_set_destroy_function(e
, ubsec_destroy
) ||
225 !ENGINE_set_init_function(e
, ubsec_init
) ||
226 !ENGINE_set_finish_function(e
, ubsec_finish
) ||
227 !ENGINE_set_ctrl_function(e
, ubsec_ctrl
) ||
228 !ENGINE_set_cmd_defns(e
, ubsec_cmd_defns
))
231 #ifndef OPENSSL_NO_RSA
232 /* We know that the "PKCS1_SSLeay()" functions hook properly
233 * to the Broadcom-specific mod_exp and mod_exp_crt so we use
234 * those functions. NB: We don't use ENGINE_openssl() or
235 * anything "more generic" because something like the RSAref
236 * code may not hook properly, and if you own one of these
237 * cards then you have the right to do RSA operations on it
239 meth1
= RSA_PKCS1_SSLeay();
240 ubsec_rsa
.rsa_pub_enc
= meth1
->rsa_pub_enc
;
241 ubsec_rsa
.rsa_pub_dec
= meth1
->rsa_pub_dec
;
242 ubsec_rsa
.rsa_priv_enc
= meth1
->rsa_priv_enc
;
243 ubsec_rsa
.rsa_priv_dec
= meth1
->rsa_priv_dec
;
246 #ifndef OPENSSL_NO_DH
247 #ifndef HAVE_UBSEC_DH
248 /* Much the same for Diffie-Hellman */
249 meth3
= DH_OpenSSL();
250 ubsec_dh
.generate_key
= meth3
->generate_key
;
251 ubsec_dh
.compute_key
= meth3
->compute_key
;
252 #endif /* HAVE_UBSEC_DH */
255 /* Ensure the ubsec error handling is set up */
256 ERR_load_UBSEC_strings();
260 #ifdef OPENSSL_NO_DYNAMIC_ENGINE
261 static ENGINE
*engine_ubsec(void)
263 ENGINE
*ret
= ENGINE_new();
266 if(!bind_helper(ret
))
274 void ENGINE_load_ubsec(void)
276 /* Copied from eng_[openssl|dyn].c */
277 ENGINE
*toadd
= engine_ubsec();
285 /* This is a process-global DSO handle used for loading and unloading
286 * the UBSEC library. NB: This is only set (or unset) during an
287 * init() or finish() call (reference counts permitting) and they're
288 * operating with global locks, so this should be thread-safe
291 static DSO
*ubsec_dso
= NULL
;
293 /* These are the function pointers that are (un)set when the library has
294 * successfully (un)loaded. */
296 static t_UBSEC_ubsec_bytes_to_bits
*p_UBSEC_ubsec_bytes_to_bits
= NULL
;
297 static t_UBSEC_ubsec_bits_to_bytes
*p_UBSEC_ubsec_bits_to_bytes
= NULL
;
298 static t_UBSEC_ubsec_open
*p_UBSEC_ubsec_open
= NULL
;
299 static t_UBSEC_ubsec_close
*p_UBSEC_ubsec_close
= NULL
;
300 #ifndef OPENSSL_NO_DH
301 static t_UBSEC_diffie_hellman_generate_ioctl
302 *p_UBSEC_diffie_hellman_generate_ioctl
= NULL
;
303 static t_UBSEC_diffie_hellman_agree_ioctl
*p_UBSEC_diffie_hellman_agree_ioctl
= NULL
;
305 #ifndef OPENSSL_NO_RSA
306 static t_UBSEC_rsa_mod_exp_ioctl
*p_UBSEC_rsa_mod_exp_ioctl
= NULL
;
307 static t_UBSEC_rsa_mod_exp_crt_ioctl
*p_UBSEC_rsa_mod_exp_crt_ioctl
= NULL
;
309 #ifndef OPENSSL_NO_DSA
310 static t_UBSEC_dsa_sign_ioctl
*p_UBSEC_dsa_sign_ioctl
= NULL
;
311 static t_UBSEC_dsa_verify_ioctl
*p_UBSEC_dsa_verify_ioctl
= NULL
;
313 static t_UBSEC_math_accelerate_ioctl
*p_UBSEC_math_accelerate_ioctl
= NULL
;
314 static t_UBSEC_rng_ioctl
*p_UBSEC_rng_ioctl
= NULL
;
315 static t_UBSEC_max_key_len_ioctl
*p_UBSEC_max_key_len_ioctl
= NULL
;
317 static int max_key_len
= 1024; /* ??? */
320 * These are the static string constants for the DSO file name and the function
321 * symbol names to bind to.
324 static const char *UBSEC_LIBNAME
= NULL
;
325 static const char *get_UBSEC_LIBNAME(void)
328 return UBSEC_LIBNAME
;
331 static void free_UBSEC_LIBNAME(void)
334 OPENSSL_free((void*)UBSEC_LIBNAME
);
335 UBSEC_LIBNAME
= NULL
;
337 static long set_UBSEC_LIBNAME(const char *name
)
339 free_UBSEC_LIBNAME();
340 return (((UBSEC_LIBNAME
= BUF_strdup(name
)) != NULL
) ? 1 : 0);
342 static const char *UBSEC_F1
= "ubsec_bytes_to_bits";
343 static const char *UBSEC_F2
= "ubsec_bits_to_bytes";
344 static const char *UBSEC_F3
= "ubsec_open";
345 static const char *UBSEC_F4
= "ubsec_close";
346 #ifndef OPENSSL_NO_DH
347 static const char *UBSEC_F5
= "diffie_hellman_generate_ioctl";
348 static const char *UBSEC_F6
= "diffie_hellman_agree_ioctl";
350 /* #ifndef OPENSSL_NO_RSA */
351 static const char *UBSEC_F7
= "rsa_mod_exp_ioctl";
352 static const char *UBSEC_F8
= "rsa_mod_exp_crt_ioctl";
354 #ifndef OPENSSL_NO_DSA
355 static const char *UBSEC_F9
= "dsa_sign_ioctl";
356 static const char *UBSEC_F10
= "dsa_verify_ioctl";
358 static const char *UBSEC_F11
= "math_accelerate_ioctl";
359 static const char *UBSEC_F12
= "rng_ioctl";
360 static const char *UBSEC_F13
= "ubsec_max_key_len_ioctl";
362 /* Destructor (complements the "ENGINE_ubsec()" constructor) */
363 static int ubsec_destroy(ENGINE
*e
)
365 free_UBSEC_LIBNAME();
366 ERR_unload_UBSEC_strings();
370 /* (de)initialisation functions. */
371 static int ubsec_init(ENGINE
*e
)
373 t_UBSEC_ubsec_bytes_to_bits
*p1
;
374 t_UBSEC_ubsec_bits_to_bytes
*p2
;
375 t_UBSEC_ubsec_open
*p3
;
376 t_UBSEC_ubsec_close
*p4
;
377 #ifndef OPENSSL_NO_DH
378 t_UBSEC_diffie_hellman_generate_ioctl
*p5
;
379 t_UBSEC_diffie_hellman_agree_ioctl
*p6
;
381 /* #ifndef OPENSSL_NO_RSA */
382 t_UBSEC_rsa_mod_exp_ioctl
*p7
;
383 t_UBSEC_rsa_mod_exp_crt_ioctl
*p8
;
385 #ifndef OPENSSL_NO_DSA
386 t_UBSEC_dsa_sign_ioctl
*p9
;
387 t_UBSEC_dsa_verify_ioctl
*p10
;
389 t_UBSEC_math_accelerate_ioctl
*p11
;
390 t_UBSEC_rng_ioctl
*p12
;
391 t_UBSEC_max_key_len_ioctl
*p13
;
394 if(ubsec_dso
!= NULL
)
396 UBSECerr(UBSEC_F_UBSEC_INIT
, UBSEC_R_ALREADY_LOADED
);
400 * Attempt to load libubsec.so/ubsec.dll/whatever.
402 ubsec_dso
= DSO_load(NULL
, get_UBSEC_LIBNAME(), NULL
, 0);
403 if(ubsec_dso
== NULL
)
405 UBSECerr(UBSEC_F_UBSEC_INIT
, UBSEC_R_DSO_FAILURE
);
409 if (!(p1
= (t_UBSEC_ubsec_bytes_to_bits
*)
410 DSO_bind_func(ubsec_dso
, UBSEC_F1
))
411 || !(p2
= (t_UBSEC_ubsec_bits_to_bytes
*)
412 DSO_bind_func(ubsec_dso
, UBSEC_F2
))
413 || !(p3
= (t_UBSEC_ubsec_open
*)
414 DSO_bind_func(ubsec_dso
, UBSEC_F3
))
415 || !(p4
= (t_UBSEC_ubsec_close
*)
416 DSO_bind_func(ubsec_dso
, UBSEC_F4
))
417 #ifndef OPENSSL_NO_DH
418 || !(p5
= (t_UBSEC_diffie_hellman_generate_ioctl
*)
419 DSO_bind_func(ubsec_dso
, UBSEC_F5
))
420 || !(p6
= (t_UBSEC_diffie_hellman_agree_ioctl
*)
421 DSO_bind_func(ubsec_dso
, UBSEC_F6
))
423 /* #ifndef OPENSSL_NO_RSA */
424 || !(p7
= (t_UBSEC_rsa_mod_exp_ioctl
*)
425 DSO_bind_func(ubsec_dso
, UBSEC_F7
))
426 || !(p8
= (t_UBSEC_rsa_mod_exp_crt_ioctl
*)
427 DSO_bind_func(ubsec_dso
, UBSEC_F8
))
429 #ifndef OPENSSL_NO_DSA
430 || !(p9
= (t_UBSEC_dsa_sign_ioctl
*)
431 DSO_bind_func(ubsec_dso
, UBSEC_F9
))
432 || !(p10
= (t_UBSEC_dsa_verify_ioctl
*)
433 DSO_bind_func(ubsec_dso
, UBSEC_F10
))
435 || !(p11
= (t_UBSEC_math_accelerate_ioctl
*)
436 DSO_bind_func(ubsec_dso
, UBSEC_F11
))
437 || !(p12
= (t_UBSEC_rng_ioctl
*)
438 DSO_bind_func(ubsec_dso
, UBSEC_F12
))
439 || !(p13
= (t_UBSEC_max_key_len_ioctl
*)
440 DSO_bind_func(ubsec_dso
, UBSEC_F13
)))
442 UBSECerr(UBSEC_F_UBSEC_INIT
, UBSEC_R_DSO_FAILURE
);
446 /* Copy the pointers */
447 p_UBSEC_ubsec_bytes_to_bits
= p1
;
448 p_UBSEC_ubsec_bits_to_bytes
= p2
;
449 p_UBSEC_ubsec_open
= p3
;
450 p_UBSEC_ubsec_close
= p4
;
451 #ifndef OPENSSL_NO_DH
452 p_UBSEC_diffie_hellman_generate_ioctl
= p5
;
453 p_UBSEC_diffie_hellman_agree_ioctl
= p6
;
455 #ifndef OPENSSL_NO_RSA
456 p_UBSEC_rsa_mod_exp_ioctl
= p7
;
457 p_UBSEC_rsa_mod_exp_crt_ioctl
= p8
;
459 #ifndef OPENSSL_NO_DSA
460 p_UBSEC_dsa_sign_ioctl
= p9
;
461 p_UBSEC_dsa_verify_ioctl
= p10
;
463 p_UBSEC_math_accelerate_ioctl
= p11
;
464 p_UBSEC_rng_ioctl
= p12
;
465 p_UBSEC_max_key_len_ioctl
= p13
;
467 /* Perform an open to see if there's actually any unit running. */
468 if (((fd
= p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME
)) > 0) && (p_UBSEC_max_key_len_ioctl(fd
, &max_key_len
) == 0))
470 p_UBSEC_ubsec_close(fd
);
475 UBSECerr(UBSEC_F_UBSEC_INIT
, UBSEC_R_UNIT_FAILURE
);
482 p_UBSEC_ubsec_bytes_to_bits
= NULL
;
483 p_UBSEC_ubsec_bits_to_bytes
= NULL
;
484 p_UBSEC_ubsec_open
= NULL
;
485 p_UBSEC_ubsec_close
= NULL
;
486 #ifndef OPENSSL_NO_DH
487 p_UBSEC_diffie_hellman_generate_ioctl
= NULL
;
488 p_UBSEC_diffie_hellman_agree_ioctl
= NULL
;
490 #ifndef OPENSSL_NO_RSA
491 p_UBSEC_rsa_mod_exp_ioctl
= NULL
;
492 p_UBSEC_rsa_mod_exp_crt_ioctl
= NULL
;
494 #ifndef OPENSSL_NO_DSA
495 p_UBSEC_dsa_sign_ioctl
= NULL
;
496 p_UBSEC_dsa_verify_ioctl
= NULL
;
498 p_UBSEC_math_accelerate_ioctl
= NULL
;
499 p_UBSEC_rng_ioctl
= NULL
;
500 p_UBSEC_max_key_len_ioctl
= NULL
;
505 static int ubsec_finish(ENGINE
*e
)
507 free_UBSEC_LIBNAME();
508 if(ubsec_dso
== NULL
)
510 UBSECerr(UBSEC_F_UBSEC_FINISH
, UBSEC_R_NOT_LOADED
);
513 if(!DSO_free(ubsec_dso
))
515 UBSECerr(UBSEC_F_UBSEC_FINISH
, UBSEC_R_DSO_FAILURE
);
519 p_UBSEC_ubsec_bytes_to_bits
= NULL
;
520 p_UBSEC_ubsec_bits_to_bytes
= NULL
;
521 p_UBSEC_ubsec_open
= NULL
;
522 p_UBSEC_ubsec_close
= NULL
;
523 #ifndef OPENSSL_NO_DH
524 p_UBSEC_diffie_hellman_generate_ioctl
= NULL
;
525 p_UBSEC_diffie_hellman_agree_ioctl
= NULL
;
527 #ifndef OPENSSL_NO_RSA
528 p_UBSEC_rsa_mod_exp_ioctl
= NULL
;
529 p_UBSEC_rsa_mod_exp_crt_ioctl
= NULL
;
531 #ifndef OPENSSL_NO_DSA
532 p_UBSEC_dsa_sign_ioctl
= NULL
;
533 p_UBSEC_dsa_verify_ioctl
= NULL
;
535 p_UBSEC_math_accelerate_ioctl
= NULL
;
536 p_UBSEC_rng_ioctl
= NULL
;
537 p_UBSEC_max_key_len_ioctl
= NULL
;
541 static int ubsec_ctrl(ENGINE
*e
, int cmd
, long i
, void *p
, void (*f
)(void))
543 int initialised
= ((ubsec_dso
== NULL
) ? 0 : 1);
546 case UBSEC_CMD_SO_PATH
:
549 UBSECerr(UBSEC_F_UBSEC_CTRL
,ERR_R_PASSED_NULL_PARAMETER
);
554 UBSECerr(UBSEC_F_UBSEC_CTRL
,UBSEC_R_ALREADY_LOADED
);
557 return set_UBSEC_LIBNAME((const char *)p
);
561 UBSECerr(UBSEC_F_UBSEC_CTRL
,UBSEC_R_CTRL_COMMAND_NOT_IMPLEMENTED
);
565 static int ubsec_mod_exp(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
566 const BIGNUM
*m
, BN_CTX
*ctx
)
571 if(ubsec_dso
== NULL
)
573 UBSECerr(UBSEC_F_UBSEC_MOD_EXP
, UBSEC_R_NOT_LOADED
);
577 /* Check if hardware can't handle this argument. */
578 y_len
= BN_num_bits(m
);
579 if (y_len
> max_key_len
) {
580 UBSECerr(UBSEC_F_UBSEC_MOD_EXP
, UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL
);
581 return BN_mod_exp(r
, a
, p
, m
, ctx
);
584 if(!bn_wexpand(r
, m
->top
))
586 UBSECerr(UBSEC_F_UBSEC_MOD_EXP
, UBSEC_R_BN_EXPAND_FAIL
);
590 if ((fd
= p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME
)) <= 0) {
592 UBSECerr(UBSEC_F_UBSEC_MOD_EXP
, UBSEC_R_UNIT_FAILURE
);
593 return BN_mod_exp(r
, a
, p
, m
, ctx
);
596 if (p_UBSEC_rsa_mod_exp_ioctl(fd
, (unsigned char *)a
->d
, BN_num_bits(a
),
597 (unsigned char *)m
->d
, BN_num_bits(m
), (unsigned char *)p
->d
,
598 BN_num_bits(p
), (unsigned char *)r
->d
, &y_len
) != 0)
600 UBSECerr(UBSEC_F_UBSEC_MOD_EXP
, UBSEC_R_REQUEST_FAILED
);
601 p_UBSEC_ubsec_close(fd
);
603 return BN_mod_exp(r
, a
, p
, m
, ctx
);
606 p_UBSEC_ubsec_close(fd
);
608 r
->top
= (BN_num_bits(m
)+BN_BITS2
-1)/BN_BITS2
;
612 #ifndef OPENSSL_NO_RSA
613 static int ubsec_rsa_mod_exp(BIGNUM
*r0
, const BIGNUM
*I
, RSA
*rsa
, BN_CTX
*ctx
)
617 if(!rsa
->p
|| !rsa
->q
|| !rsa
->dmp1
|| !rsa
->dmq1
|| !rsa
->iqmp
)
619 UBSECerr(UBSEC_F_UBSEC_RSA_MOD_EXP
, UBSEC_R_MISSING_KEY_COMPONENTS
);
623 to_return
= ubsec_mod_exp_crt(r0
, I
, rsa
->p
, rsa
->q
, rsa
->dmp1
,
624 rsa
->dmq1
, rsa
->iqmp
, ctx
);
625 if (to_return
== FAIL_TO_SOFTWARE
)
628 * Do in software as hardware failed.
630 const RSA_METHOD
*meth
= RSA_PKCS1_SSLeay();
631 to_return
= (*meth
->rsa_mod_exp
)(r0
, I
, rsa
, ctx
);
637 static int ubsec_mod_exp_crt(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
638 const BIGNUM
*q
, const BIGNUM
*dp
,
639 const BIGNUM
*dq
, const BIGNUM
*qinv
, BN_CTX
*ctx
)
644 y_len
= BN_num_bits(p
) + BN_num_bits(q
);
646 /* Check if hardware can't handle this argument. */
647 if (y_len
> max_key_len
) {
648 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT
, UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL
);
649 return FAIL_TO_SOFTWARE
;
652 if (!bn_wexpand(r
, p
->top
+ q
->top
+ 1)) {
653 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT
, UBSEC_R_BN_EXPAND_FAIL
);
657 if ((fd
= p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME
)) <= 0) {
659 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT
, UBSEC_R_UNIT_FAILURE
);
660 return FAIL_TO_SOFTWARE
;
663 if (p_UBSEC_rsa_mod_exp_crt_ioctl(fd
,
664 (unsigned char *)a
->d
, BN_num_bits(a
),
665 (unsigned char *)qinv
->d
, BN_num_bits(qinv
),
666 (unsigned char *)dp
->d
, BN_num_bits(dp
),
667 (unsigned char *)p
->d
, BN_num_bits(p
),
668 (unsigned char *)dq
->d
, BN_num_bits(dq
),
669 (unsigned char *)q
->d
, BN_num_bits(q
),
670 (unsigned char *)r
->d
, &y_len
) != 0) {
671 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT
, UBSEC_R_REQUEST_FAILED
);
672 p_UBSEC_ubsec_close(fd
);
673 return FAIL_TO_SOFTWARE
;
676 p_UBSEC_ubsec_close(fd
);
678 r
->top
= (BN_num_bits(p
) + BN_num_bits(q
) + BN_BITS2
- 1)/BN_BITS2
;
683 #ifndef OPENSSL_NO_DSA
685 static int ubsec_dsa_mod_exp(DSA
*dsa
, BIGNUM
*rr
, BIGNUM
*a1
,
686 BIGNUM
*p1
, BIGNUM
*a2
, BIGNUM
*p2
, BIGNUM
*m
,
687 BN_CTX
*ctx
, BN_MONT_CTX
*in_mont
)
693 /* let rr = a1 ^ p1 mod m */
694 if (!ubsec_mod_exp(rr
,a1
,p1
,m
,ctx
)) goto end
;
695 /* let t = a2 ^ p2 mod m */
696 if (!ubsec_mod_exp(&t
,a2
,p2
,m
,ctx
)) goto end
;
697 /* let rr = rr * t mod m */
698 if (!BN_mod_mul(rr
,rr
,&t
,m
,ctx
)) goto end
;
705 static int ubsec_mod_exp_dsa(DSA
*dsa
, BIGNUM
*r
, BIGNUM
*a
,
706 const BIGNUM
*p
, const BIGNUM
*m
, BN_CTX
*ctx
,
709 return ubsec_mod_exp(r
, a
, p
, m
, ctx
);
714 #ifndef OPENSSL_NO_RSA
717 * This function is aliased to mod_exp (with the mont stuff dropped).
719 static int ubsec_mod_exp_mont(BIGNUM
*r
, const BIGNUM
*a
, const BIGNUM
*p
,
720 const BIGNUM
*m
, BN_CTX
*ctx
, BN_MONT_CTX
*m_ctx
)
724 /* Do in software if the key is too large for the hardware. */
725 if (BN_num_bits(m
) > max_key_len
)
727 const RSA_METHOD
*meth
= RSA_PKCS1_SSLeay();
728 ret
= (*meth
->bn_mod_exp
)(r
, a
, p
, m
, ctx
, m_ctx
);
732 ret
= ubsec_mod_exp(r
, a
, p
, m
, ctx
);
739 #ifndef OPENSSL_NO_DH
740 /* This function is aliased to mod_exp (with the dh and mont dropped). */
741 static int ubsec_mod_exp_dh(const DH
*dh
, BIGNUM
*r
, const BIGNUM
*a
,
742 const BIGNUM
*p
, const BIGNUM
*m
, BN_CTX
*ctx
,
745 return ubsec_mod_exp(r
, a
, p
, m
, ctx
);
749 #ifndef OPENSSL_NO_DSA
750 static DSA_SIG
*ubsec_dsa_do_sign(const unsigned char *dgst
, int dlen
, DSA
*dsa
)
752 DSA_SIG
*to_return
= NULL
;
753 int s_len
= 160, r_len
= 160, d_len
, fd
;
754 BIGNUM m
, *r
=NULL
, *s
=NULL
;
760 if ((s
== NULL
) || (r
==NULL
))
763 d_len
= p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst
, dlen
);
765 if(!bn_wexpand(r
, (160+BN_BITS2
-1)/BN_BITS2
) ||
766 (!bn_wexpand(s
, (160+BN_BITS2
-1)/BN_BITS2
))) {
767 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN
, UBSEC_R_BN_EXPAND_FAIL
);
771 if (BN_bin2bn(dgst
,dlen
,&m
) == NULL
) {
772 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN
, UBSEC_R_BN_EXPAND_FAIL
);
776 if ((fd
= p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME
)) <= 0) {
777 const DSA_METHOD
*meth
;
779 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN
, UBSEC_R_UNIT_FAILURE
);
780 meth
= DSA_OpenSSL();
781 to_return
= meth
->dsa_do_sign(dgst
, dlen
, dsa
);
785 if (p_UBSEC_dsa_sign_ioctl(fd
,
786 /* compute hash before signing */
788 (unsigned char *)dgst
, d_len
,
790 /* compute random value */
792 (unsigned char *)dsa
->p
->d
, BN_num_bits(dsa
->p
),
793 (unsigned char *)dsa
->q
->d
, BN_num_bits(dsa
->q
),
794 (unsigned char *)dsa
->g
->d
, BN_num_bits(dsa
->g
),
795 (unsigned char *)dsa
->priv_key
->d
, BN_num_bits(dsa
->priv_key
),
796 (unsigned char *)r
->d
, &r_len
,
797 (unsigned char *)s
->d
, &s_len
) != 0) {
798 const DSA_METHOD
*meth
;
800 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN
, UBSEC_R_REQUEST_FAILED
);
801 p_UBSEC_ubsec_close(fd
);
802 meth
= DSA_OpenSSL();
803 to_return
= meth
->dsa_do_sign(dgst
, dlen
, dsa
);
808 p_UBSEC_ubsec_close(fd
);
810 r
->top
= (160+BN_BITS2
-1)/BN_BITS2
;
811 s
->top
= (160+BN_BITS2
-1)/BN_BITS2
;
813 to_return
= DSA_SIG_new();
814 if(to_return
== NULL
) {
815 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN
, UBSEC_R_BN_EXPAND_FAIL
);
831 static int ubsec_dsa_verify(const unsigned char *dgst
, int dgst_len
,
832 DSA_SIG
*sig
, DSA
*dsa
)
841 if(!bn_wexpand(pv
, dsa
->p
->top
)) {
842 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY
, UBSEC_R_BN_EXPAND_FAIL
);
846 v_len
= BN_num_bits(dsa
->p
);
848 d_len
= p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst
, dgst_len
);
850 if ((fd
= p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME
)) <= 0) {
851 const DSA_METHOD
*meth
;
853 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY
, UBSEC_R_UNIT_FAILURE
);
854 meth
= DSA_OpenSSL();
855 to_return
= meth
->dsa_do_verify(dgst
, dgst_len
, sig
, dsa
);
859 if (p_UBSEC_dsa_verify_ioctl(fd
, 0, /* compute hash before signing */
860 (unsigned char *)dgst
, d_len
,
861 (unsigned char *)dsa
->p
->d
, BN_num_bits(dsa
->p
),
862 (unsigned char *)dsa
->q
->d
, BN_num_bits(dsa
->q
),
863 (unsigned char *)dsa
->g
->d
, BN_num_bits(dsa
->g
),
864 (unsigned char *)dsa
->pub_key
->d
, BN_num_bits(dsa
->pub_key
),
865 (unsigned char *)sig
->r
->d
, BN_num_bits(sig
->r
),
866 (unsigned char *)sig
->s
->d
, BN_num_bits(sig
->s
),
867 (unsigned char *)v
.d
, &v_len
) != 0) {
868 const DSA_METHOD
*meth
;
869 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY
, UBSEC_R_REQUEST_FAILED
);
870 p_UBSEC_ubsec_close(fd
);
872 meth
= DSA_OpenSSL();
873 to_return
= meth
->dsa_do_verify(dgst
, dgst_len
, sig
, dsa
);
878 p_UBSEC_ubsec_close(fd
);
887 #ifndef OPENSSL_NO_DH
888 static int ubsec_dh_compute_key(unsigned char *key
,const BIGNUM
*pub_key
,DH
*dh
)
894 k_len
= BN_num_bits(dh
->p
);
896 if ((fd
= p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME
)) <= 0)
898 const DH_METHOD
*meth
;
899 UBSECerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY
, UBSEC_R_UNIT_FAILURE
);
901 ret
= meth
->compute_key(key
, pub_key
, dh
);
905 if (p_UBSEC_diffie_hellman_agree_ioctl(fd
,
906 (unsigned char *)dh
->priv_key
->d
, BN_num_bits(dh
->priv_key
),
907 (unsigned char *)pub_key
->d
, BN_num_bits(pub_key
),
908 (unsigned char *)dh
->p
->d
, BN_num_bits(dh
->p
),
911 /* Hardware's a no go, failover to software */
912 const DH_METHOD
*meth
;
913 UBSECerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY
, UBSEC_R_REQUEST_FAILED
);
914 p_UBSEC_ubsec_close(fd
);
917 ret
= meth
->compute_key(key
, pub_key
, dh
);
922 p_UBSEC_ubsec_close(fd
);
924 ret
= p_UBSEC_ubsec_bits_to_bytes(k_len
);
929 static int ubsec_dh_generate_key(DH
*dh
)
936 BIGNUM
*pub_key
= NULL
;
937 BIGNUM
*priv_key
= NULL
;
940 * How many bits should Random x be? dh_key.c
941 * sets the range from 0 to num_bits(modulus) ???
944 if (dh
->priv_key
== NULL
)
947 if (priv_key
== NULL
) goto err
;
948 priv_key_len
= BN_num_bits(dh
->p
);
949 if(bn_wexpand(priv_key
, dh
->p
->top
) == NULL
) goto err
;
951 if (!BN_rand_range(priv_key
, dh
->p
)) goto err
;
952 while (BN_is_zero(priv_key
));
953 random_bits
= BN_num_bits(priv_key
);
957 priv_key
= dh
->priv_key
;
960 if (dh
->pub_key
== NULL
)
963 pub_key_len
= BN_num_bits(dh
->p
);
964 if(bn_wexpand(pub_key
, dh
->p
->top
) == NULL
) goto err
;
965 if(pub_key
== NULL
) goto err
;
969 pub_key
= dh
->pub_key
;
972 if ((fd
= p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME
)) <= 0)
974 const DH_METHOD
*meth
;
975 UBSECerr(UBSEC_F_UBSEC_DH_GENERATE_KEY
, UBSEC_R_UNIT_FAILURE
);
977 ret
= meth
->generate_key(dh
);
981 if (p_UBSEC_diffie_hellman_generate_ioctl(fd
,
982 (unsigned char *)priv_key
->d
, &priv_key_len
,
983 (unsigned char *)pub_key
->d
, &pub_key_len
,
984 (unsigned char *)dh
->g
->d
, BN_num_bits(dh
->g
),
985 (unsigned char *)dh
->p
->d
, BN_num_bits(dh
->p
),
986 0, 0, random_bits
) != 0)
988 /* Hardware's a no go, failover to software */
989 const DH_METHOD
*meth
;
991 UBSECerr(UBSEC_F_UBSEC_DH_GENERATE_KEY
, UBSEC_R_REQUEST_FAILED
);
992 p_UBSEC_ubsec_close(fd
);
995 ret
= meth
->generate_key(dh
);
1000 p_UBSEC_ubsec_close(fd
);
1002 dh
->pub_key
= pub_key
;
1003 dh
->pub_key
->top
= (pub_key_len
+ BN_BITS2
-1) / BN_BITS2
;
1004 dh
->priv_key
= priv_key
;
1005 dh
->priv_key
->top
= (priv_key_len
+ BN_BITS2
-1) / BN_BITS2
;
1014 static int ubsec_rand_bytes(unsigned char * buf
,
1020 if ((fd
= p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME
)) <= 0)
1022 const RAND_METHOD
*meth
;
1023 UBSECerr(UBSEC_F_UBSEC_RAND_BYTES
, UBSEC_R_UNIT_FAILURE
);
1024 num
= p_UBSEC_ubsec_bits_to_bytes(num
);
1025 meth
= RAND_SSLeay();
1026 meth
->seed(buf
, num
);
1027 ret
= meth
->bytes(buf
, num
);
1031 num
*= 8; /* bytes to bits */
1033 if (p_UBSEC_rng_ioctl(fd
,
1038 /* Hardware's a no go, failover to software */
1039 const RAND_METHOD
*meth
;
1041 UBSECerr(UBSEC_F_UBSEC_RAND_BYTES
, UBSEC_R_REQUEST_FAILED
);
1042 p_UBSEC_ubsec_close(fd
);
1044 num
= p_UBSEC_ubsec_bits_to_bytes(num
);
1045 meth
= RAND_SSLeay();
1046 meth
->seed(buf
, num
);
1047 ret
= meth
->bytes(buf
, num
);
1052 p_UBSEC_ubsec_close(fd
);
1060 static int ubsec_rand_status(void)
1066 /* This stuff is needed if this ENGINE is being compiled into a self-contained
1067 * shared-library. */
1068 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
1069 static int bind_fn(ENGINE
*e
, const char *id
)
1071 if(id
&& (strcmp(id
, engine_ubsec_id
) != 0))
1077 IMPLEMENT_DYNAMIC_CHECK_FN()
1078 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn
)
1079 #endif /* OPENSSL_NO_DYNAMIC_ENGINE */
1081 #endif /* !OPENSSL_NO_HW_UBSEC */
1082 #endif /* !OPENSSL_NO_HW */