-
Notifications
You must be signed in to change notification settings - Fork 129
/
Copy pathqat_hw_sm2.c
1458 lines (1307 loc) · 48.3 KB
/
qat_hw_sm2.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* ====================================================================
*
*
* BSD LICENSE
*
* Copyright(c) 2023-2025 Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* ====================================================================
*/
/*****************************************************************************
* @file qat_hw_sm2.c
*
* This file provides SM2 implementaion for QAT_HW
*
*****************************************************************************/
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#define __USE_GNU
#include "qat_hw_sm2.h"
#if defined(ENABLE_QAT_HW_SM2) && !defined(QAT_HW_FBSD_INTREE)
typedef struct {
/* Key and paramgen group */
EC_GROUP *gen_group;
/* message digest */
const EVP_MD *md;
/* Distinguishing Identifier, ISO/IEC 15946-3 */
uint8_t *id;
size_t id_len;
/* id_set indicates if the 'id' field is set (1) or not (0) */
int id_set;
} QAT_SM2_PKEY_CTX;
# ifdef QAT_OPENSSL_3
typedef struct evp_signature_st {
int name_id;
char *type_name;
const char *description;
OSSL_PROVIDER *prov;
CRYPTO_REF_COUNT references;
#if OPENSSL_VERSION_NUMBER < 0x30200000
CRYPTO_RWLOCK *lock;
#endif
OSSL_FUNC_signature_newctx_fn *newctx;
OSSL_FUNC_signature_sign_init_fn *sign_init;
OSSL_FUNC_signature_sign_fn *sign;
OSSL_FUNC_signature_verify_init_fn *verify_init;
OSSL_FUNC_signature_verify_fn *verify;
OSSL_FUNC_signature_verify_recover_init_fn *verify_recover_init;
OSSL_FUNC_signature_verify_recover_fn *verify_recover;
OSSL_FUNC_signature_digest_sign_init_fn *digest_sign_init;
OSSL_FUNC_signature_digest_sign_update_fn *digest_sign_update;
OSSL_FUNC_signature_digest_sign_final_fn *digest_sign_final;
OSSL_FUNC_signature_digest_sign_fn *digest_sign;
OSSL_FUNC_signature_digest_verify_init_fn *digest_verify_init;
OSSL_FUNC_signature_digest_verify_update_fn *digest_verify_update;
OSSL_FUNC_signature_digest_verify_final_fn *digest_verify_final;
OSSL_FUNC_signature_digest_verify_fn *digest_verify;
OSSL_FUNC_signature_freectx_fn *freectx;
OSSL_FUNC_signature_dupctx_fn *dupctx;
OSSL_FUNC_signature_get_ctx_params_fn *get_ctx_params;
OSSL_FUNC_signature_gettable_ctx_params_fn *gettable_ctx_params;
OSSL_FUNC_signature_set_ctx_params_fn *set_ctx_params;
OSSL_FUNC_signature_settable_ctx_params_fn *settable_ctx_params;
OSSL_FUNC_signature_get_ctx_md_params_fn *get_ctx_md_params;
OSSL_FUNC_signature_gettable_ctx_md_params_fn *gettable_ctx_md_params;
OSSL_FUNC_signature_set_ctx_md_params_fn *set_ctx_md_params;
OSSL_FUNC_signature_settable_ctx_md_params_fn *settable_ctx_md_params;
} QAT_EVP_SIGNATURE /* EVP_SIGNATURE for QAT Provider sm2 */ ;
struct bignum_st {
BN_ULONG *d; /* Pointer to an array of 'BN_BITS2' bit
* chunks. */
int top; /* Index of last used d +1. */
/* The next are internal book keeping for bn_expand. */
int dmax; /* Size of the d array. */
int neg; /* one if the number is negative */
int flags;
};
static QAT_EVP_SIGNATURE get_def_signature_sm2()
{
static QAT_EVP_SIGNATURE s_signature;
static int initilazed = 0;
if (!initilazed) {
QAT_EVP_SIGNATURE *signature =
(QAT_EVP_SIGNATURE *) EVP_SIGNATURE_fetch(NULL, "SM2",
"provider=default");
if (signature) {
s_signature = *signature;
EVP_SIGNATURE_free((QAT_EVP_SIGNATURE *) signature);
initilazed = 1;
} else {
WARN("EVP_SIGNATURE_fetch from default provider failed");
}
}
return s_signature;
}
# endif
/* Callback to indicate QAT completion of SM2 Sign */
static void qat_sm2SignCallbackFn(void *pCallbackTag, CpaStatus status,
void *pOpData, CpaBoolean signStatus,
CpaFlatBuffer *pR, CpaFlatBuffer *pS)
{
if (enable_heuristic_polling) {
QAT_ATOMIC_DEC(num_asym_requests_in_flight);
}
qat_crypto_callbackFn(pCallbackTag, status, 0, pOpData, NULL, signStatus);
}
/* Callback to indicate QAT completion of SM2 Verify */
static void qat_sm2VerifyCallbackFn(void *pCallbackTag, CpaStatus status,
void *pOpData, CpaBoolean verifyStatus)
{
if (enable_heuristic_polling) {
QAT_ATOMIC_DEC(num_asym_requests_in_flight);
}
qat_crypto_callbackFn(pCallbackTag, status, 0, pOpData, NULL, verifyStatus);
}
int qat_hw_sm2_compute_z_digest(uint8_t *out,
const EVP_MD *digest,
const uint8_t *id,
const size_t id_len, const EC_KEY *key)
{
int rc = 0;
const EC_GROUP *group = EC_KEY_get0_group(key);
BN_CTX *ctx = NULL;
EVP_MD_CTX *hash = NULL;
BIGNUM *p = NULL;
BIGNUM *a = NULL;
BIGNUM *b = NULL;
BIGNUM *xG = NULL;
BIGNUM *yG = NULL;
BIGNUM *xA = NULL;
BIGNUM *yA = NULL;
int p_bytes = 0;
uint8_t *buf = NULL;
uint16_t entl = 0;
uint8_t e_byte = 0;
hash = EVP_MD_CTX_new();
ctx = BN_CTX_new();
if (hash == NULL || ctx == NULL) {
QATerr(QAT_F_QAT_HW_SM2_COMPUTE_Z_DIGEST, QAT_R_MALLOC_FAILURE);
goto done;
}
p = BN_CTX_get(ctx);
a = BN_CTX_get(ctx);
b = BN_CTX_get(ctx);
xG = BN_CTX_get(ctx);
yG = BN_CTX_get(ctx);
xA = BN_CTX_get(ctx);
yA = BN_CTX_get(ctx);
if (yA == NULL) {
QATerr(QAT_F_QAT_HW_SM2_COMPUTE_Z_DIGEST, QAT_R_MALLOC_FAILURE);
goto done;
}
if (!EVP_DigestInit(hash, digest)) {
QATerr(QAT_F_QAT_HW_SM2_COMPUTE_Z_DIGEST, QAT_R_EVP_LIB);
goto done;
}
/* Z = h(ENTL || ID || a || b || xG || yG || xA || yA) */
if (id_len >= (UINT16_MAX / 8)) {
/* too large */
QATerr(QAT_F_QAT_HW_SM2_COMPUTE_Z_DIGEST, QAT_R_SM2_ID_TOO_LARGE);
goto done;
}
entl = (uint16_t)(8 * id_len);
e_byte = entl >> 8;
if (!EVP_DigestUpdate(hash, &e_byte, 1)) {
QATerr(QAT_F_QAT_HW_SM2_COMPUTE_Z_DIGEST, QAT_R_EVP_LIB);
goto done;
}
e_byte = entl & 0xFF;
if (!EVP_DigestUpdate(hash, &e_byte, 1)) {
QATerr(QAT_F_QAT_HW_SM2_COMPUTE_Z_DIGEST, QAT_R_EVP_LIB);
goto done;
}
if (id_len > 0 && !EVP_DigestUpdate(hash, id, id_len)) {
QATerr(QAT_F_QAT_HW_SM2_COMPUTE_Z_DIGEST, QAT_R_EVP_LIB);
goto done;
}
if (!EC_GROUP_get_curve(group, p, a, b, ctx)) {
QATerr(QAT_F_QAT_HW_SM2_COMPUTE_Z_DIGEST, QAT_R_EC_LIB);
goto done;
}
p_bytes = BN_num_bytes(p);
buf = OPENSSL_zalloc(p_bytes);
if (buf == NULL) {
QATerr(QAT_F_QAT_HW_SM2_COMPUTE_Z_DIGEST, QAT_R_MALLOC_FAILURE);
goto done;
}
if (BN_bn2binpad(a, buf, p_bytes) < 0
|| !EVP_DigestUpdate(hash, buf, p_bytes)
|| BN_bn2binpad(b, buf, p_bytes) < 0
|| !EVP_DigestUpdate(hash, buf, p_bytes)
|| !EC_POINT_get_affine_coordinates(group,
EC_GROUP_get0_generator(group),
xG, yG, ctx)
|| BN_bn2binpad(xG, buf, p_bytes) < 0
|| !EVP_DigestUpdate(hash, buf, p_bytes)
|| BN_bn2binpad(yG, buf, p_bytes) < 0
|| !EVP_DigestUpdate(hash, buf, p_bytes)
|| !EC_POINT_get_affine_coordinates(group,
EC_KEY_get0_public_key(key),
xA, yA, ctx)
|| BN_bn2binpad(xA, buf, p_bytes) < 0
|| !EVP_DigestUpdate(hash, buf, p_bytes)
|| BN_bn2binpad(yA, buf, p_bytes) < 0
|| !EVP_DigestUpdate(hash, buf, p_bytes)
|| !EVP_DigestFinal(hash, out, NULL)) {
QATerr(QAT_F_QAT_HW_SM2_COMPUTE_Z_DIGEST, QAT_R_INTERNAL_ERROR);
goto done;
}
rc = 1;
done:
OPENSSL_free(buf);
BN_CTX_free(ctx);
EVP_MD_CTX_free(hash);
return rc;
}
# ifndef QAT_OPENSSL_PROVIDER
int qat_sm2_init(EVP_PKEY_CTX *ctx)
{
QAT_SM2_PKEY_CTX *smctx = NULL;
if (unlikely(ctx == NULL)) {
WARN("ctx (type EVP_PKEY_CTX) is NULL \n");
return 0;
}
if ((smctx = OPENSSL_zalloc(sizeof(*smctx))) == NULL) {
WARN("smctx alloc Failure\n");
QATerr(QAT_F_QAT_SM2_INIT, QAT_R_MALLOC_FAILURE);
return 0;
}
EVP_PKEY_CTX_set_data(ctx, smctx);
return 1;
}
void qat_sm2_cleanup(EVP_PKEY_CTX *ctx)
{
QAT_SM2_PKEY_CTX *smctx = NULL;
if (unlikely(ctx == NULL)) {
WARN("ctx (type EVP_PKEY_CTX) is NULL \n");
return;
}
smctx = (QAT_SM2_PKEY_CTX *) EVP_PKEY_CTX_get_data(ctx);
if (smctx == NULL) {
WARN("smctx is NULL\n");
return;
}
EC_GROUP_free(smctx->gen_group);
OPENSSL_free(smctx->id);
OPENSSL_free(smctx);
}
# ifdef QAT_OPENSSL_3
int qat_sm2_copy(EVP_PKEY_CTX *dst, const EVP_PKEY_CTX *src)
# else
int qat_sm2_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
# endif
{
QAT_SM2_PKEY_CTX *smdctx, *smsctx;
if (unlikely(src == NULL)) {
WARN("src (type EVP_PKEY_CTX) is NULL \n");
return 0;
}
if (unlikely(dst == NULL)) {
WARN("dst (type EVP_PKEY_CTX) is NULL \n");
return 0;
}
if (!qat_sm2_init(dst))
return 0;
smsctx = EVP_PKEY_CTX_get_data(src);
smdctx = EVP_PKEY_CTX_get_data(dst);
if (smsctx->gen_group != NULL) {
smdctx->gen_group = EC_GROUP_dup(smsctx->gen_group);
if (smdctx->gen_group == NULL) {
qat_sm2_cleanup(dst);
return 0;
}
}
if (smsctx->id != NULL) {
smdctx->id = OPENSSL_malloc(smsctx->id_len);
if (smdctx->id == NULL) {
QATerr(QAT_F_QAT_SM2_COPY, QAT_R_MALLOC_FAILURE);
qat_sm2_cleanup(dst);
return 0;
}
memcpy(smdctx->id, smsctx->id, smsctx->id_len);
}
smdctx->id_len = smsctx->id_len;
smdctx->id_set = smsctx->id_set;
smdctx->md = smsctx->md;
return 1;
}
int qat_sm2_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
{
QAT_SM2_PKEY_CTX *smctx = (QAT_SM2_PKEY_CTX *) EVP_PKEY_CTX_get_data(ctx);
EC_GROUP *group;
uint8_t *tmp_id;
if (unlikely(smctx == NULL)) {
WARN("smctx cannot be NULL\n");
QATerr(QAT_F_QAT_SM2_CTRL, QAT_R_CTX_NULL);
return 0;
}
switch (type) {
case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID:
group = EC_GROUP_new_by_curve_name(p1);
if (group == NULL) {
WARN("Invalid curve\n");
QATerr(QAT_F_QAT_SM2_CTRL, QAT_R_INVALID_CURVE);
return 0;
}
EC_GROUP_free(smctx->gen_group);
smctx->gen_group = group;
return 1;
case EVP_PKEY_CTRL_EC_PARAM_ENC:
if (smctx->gen_group == NULL) {
WARN("gen group NULL\n");
QATerr(QAT_F_QAT_SM2_CTRL, QAT_R_NO_PARAMETERS_SET);
return 0;
}
EC_GROUP_set_asn1_flag(smctx->gen_group, p1);
return 1;
case EVP_PKEY_CTRL_MD:
smctx->md = p2;
return 1;
case EVP_PKEY_CTRL_GET_MD:
*(const EVP_MD **)p2 = smctx->md;
return 1;
case EVP_PKEY_CTRL_SET1_ID:
if (p1 > 0) {
tmp_id = OPENSSL_malloc(p1);
if (tmp_id == NULL) {
WARN("Malloc Failure\n");
QATerr(QAT_F_QAT_SM2_CTRL, QAT_R_MALLOC_FAILURE);
return 0;
}
memcpy(tmp_id, p2, p1);
OPENSSL_free(smctx->id);
smctx->id = tmp_id;
} else {
/* set null-ID */
OPENSSL_free(smctx->id);
smctx->id = NULL;
}
smctx->id_len = (size_t)p1;
smctx->id_set = 1;
return 1;
case EVP_PKEY_CTRL_GET1_ID:
memcpy(p2, smctx->id, smctx->id_len);
return 1;
case EVP_PKEY_CTRL_GET1_ID_LEN:
*(size_t *)p2 = smctx->id_len;
return 1;
/* Default behaviour is OK */
case EVP_PKEY_CTRL_PEER_KEY:
case EVP_PKEY_CTRL_PKCS7_SIGN:
case EVP_PKEY_CTRL_CMS_SIGN:
case EVP_PKEY_CTRL_DIGESTINIT:
/* nothing to be inited, this is to suppress the error... */
return 1;
default:
return -2;
}
}
# ifdef QAT_OPENSSL_3
static BIGNUM *sm2_compute_msg_hash(const EVP_MD *digest,
const EC_KEY *key,
const uint8_t *id,
const size_t id_len,
const uint8_t *msg, size_t msg_len)
{
EVP_MD_CTX *hash = EVP_MD_CTX_new();
const int md_size = EVP_MD_size(digest);
uint8_t *z = NULL;
BIGNUM *e = NULL;
if (md_size < 0) {
QATerr(QAT_F_SM2_COMPUTE_MSG_HASH, QAT_R_SM2_INVALID_DIGEST);
goto done;
}
z = OPENSSL_zalloc(md_size);
if (hash == NULL || z == NULL) {
QATerr(QAT_F_SM2_COMPUTE_MSG_HASH, ERR_R_MALLOC_FAILURE);
goto done;
}
if (!qat_hw_sm2_compute_z_digest(z, digest, id, id_len, key)) {
/* SM2err already called */
goto done;
}
if (!EVP_DigestInit(hash, digest)
|| !EVP_DigestUpdate(hash, z, md_size)
|| !EVP_DigestUpdate(hash, msg, msg_len)
/* reuse z buffer to hold H(Z || M) */
|| !EVP_DigestFinal(hash, z, NULL)) {
QATerr(QAT_F_SM2_COMPUTE_MSG_HASH, ERR_R_EVP_LIB);
goto done;
}
e = BN_bin2bn(z, md_size, NULL);
if (e == NULL)
QATerr(QAT_F_SM2_COMPUTE_MSG_HASH, ERR_R_INTERNAL_ERROR);
done:
OPENSSL_free(z);
EVP_MD_CTX_free(hash);
return e;
}
# endif
int qat_sm2_digest_custom(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx)
{
uint8_t z[EVP_MAX_MD_SIZE];
QAT_SM2_PKEY_CTX *smctx = (QAT_SM2_PKEY_CTX *) EVP_PKEY_CTX_get_data(ctx);
EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
const EC_KEY *eckey = EVP_PKEY_get0_EC_KEY(pkey);
const EVP_MD *md = EVP_MD_CTX_md(mctx);
int mdlen = EVP_MD_size(md);
if (!smctx->id_set) {
/*
* Actually, there is no standard doc which illustrate how to set sm2-id
* correctly, only GM/T 0009-2012 gives a fuzzy definition that sm2-id
* would be "1234567812345678", and there is no way to get sm2-id from
* certificate. In tls handshake, client/server would get a long
* certificate chain from peer, we can't find any effective way to
* recognize or set sm2-id for each cert, so we choose to set a default
* sm2 id for each sm2 sign process.
*/
smctx->id_set = 1;
smctx->id =
(uint8_t *)OPENSSL_memdup(SM2_DEFAULT_USERID,
SM2_DEFAULT_USERID_LEN);
smctx->id_len = SM2_DEFAULT_USERID_LEN;
}
if (mdlen < 0) {
QATerr(QAT_F_QAT_SM2_DIGEST_CUSTOM, QAT_R_SM2_INVALID_DIGEST);
return 0;
}
/* get hashed prefix 'z' of tbs message */
if (!qat_hw_sm2_compute_z_digest(z, md, smctx->id, smctx->id_len, eckey))
return 0;
return EVP_DigestUpdate(mctx, z, (size_t)mdlen);
}
# endif
# ifdef QAT_OPENSSL_PROVIDER
int qat_sm2_sign(QAT_PROV_SM2_CTX *smctx,
unsigned char *sig, size_t *siglen,
size_t sigsize, const unsigned char *tbs, size_t tbslen)
# else
int qat_sm2_sign(EVP_PKEY_CTX *ctx,
unsigned char *sig, size_t *siglen,
const unsigned char *tbs, size_t tbslen)
# endif
{
int ret = 0, i, sigleni, job_ret = 0, fallback = 0;
ECDSA_SIG *s = NULL;
size_t buflen = 0;
const EC_GROUP *group;
const BIGNUM *priv_key, *order;
const EC_POINT *pub_key = NULL;
BIGNUM *sig_r = NULL, *sig_s = NULL;
CpaFlatBuffer *pResultR = NULL;
CpaFlatBuffer *pResultS = NULL;
int inst_num = QAT_INVALID_INSTANCE;
BIGNUM *k = NULL, *e = NULL;
CpaCyEcsm2SignOpData *opData = NULL;
CpaStatus status = CPA_STATUS_FAIL;
CpaBoolean bSM2SignStatus = 0;
op_done_t op_done;
int qatPerformOpRetries = 0;
useconds_t ulPollInterval = getQatPollInterval();
int iMsgRetry = getQatMsgRetryCount();
thread_local_variables_t *tlv = NULL;
BN_CTX *bctx = NULL;
int qat_svm = QAT_INSTANCE_ANY;
# if defined(QAT_OPENSSL_3) && !defined(QAT_OPENSSL_PROVIDER)
int sig_sz;
unsigned char *dgst = NULL;
BIGNUM *bg = NULL;
EVP_MD *md = NULL;
int dlen = 0;
QAT_PROV_SM2_CTX *sw_ctx;
# endif
# if defined(QAT_OPENSSL_3) || defined(QAT_OPENSSL_PROVIDER)
QAT_EVP_SIGNATURE sw_sm2_signature;
# else
int (*psign)(EVP_PKEY_CTX *ctx,
unsigned char *sig, size_t *siglen,
const unsigned char *tbs, size_t tbslen) = NULL;
# endif
# ifdef QAT_OPENSSL_PROVIDER
const EC_KEY *eckey = smctx->ec;
# else
EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx);
const EC_KEY *eckey = EVP_PKEY_get0_EC_KEY(pkey);
# endif
DEBUG("Entering \n");
if (unlikely(eckey == NULL) || unlikely(siglen == NULL)) {
WARN("Invalid Input params\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_INPUT_PARAM_INVALID);
return ret;
}
# if defined(QAT_OPENSSL_3) && !defined(QAT_OPENSSL_PROVIDER)
sig_sz = ECDSA_size(eckey);
if (sig_sz <= 0)
return ret;
/* To know how much memory is needed to store the sig */
if (sig == NULL) {
*siglen = (size_t)sig_sz;
return 1;
}
if (*siglen < (size_t)sig_sz) {
WARN("Invalid Input param\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_INPUT_PARAM_INVALID);
return ret;
}
# endif
group = EC_KEY_get0_group(eckey);
priv_key = EC_KEY_get0_private_key(eckey);
pub_key = EC_KEY_get0_public_key(eckey);
order = EC_GROUP_get0_order(group);
if (group == NULL || priv_key == NULL || pub_key == NULL) {
WARN("Either group, priv_key or pub_key are NULL\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_GROUP_PRIV_KEY_PUB_KEY_NULL);
return ret;
}
# ifndef QAT_OPENSSL_PROVIDER
QAT_SM2_PKEY_CTX *smctx = (QAT_SM2_PKEY_CTX *) EVP_PKEY_CTX_get_data(ctx);
if (!smctx->id_set) {
smctx->id_set = 1;
smctx->id =
(uint8_t *)OPENSSL_memdup(SM2_DEFAULT_USERID,
SM2_DEFAULT_USERID_LEN);
smctx->id_len = SM2_DEFAULT_USERID_LEN;
}
# endif
DEBUG("QAT HW SM2 Sign Started \n");
if ((bctx = BN_CTX_new()) == NULL) {
WARN("Failure to allocate ctx\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_CTX_MALLOC_FAILURE);
goto err;
}
BN_CTX_start(bctx);
k = BN_CTX_get(bctx);
e = BN_CTX_get(bctx);
if (e == NULL) {
WARN("Failure to allocate k, e or order\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_K_E_ORDER_MALLOC_FAILURE);
goto err;
}
i = BN_num_bits(order);
/*
* Need to truncate digest if it is too long: first truncate whole bytes.
*/
if (8 * tbslen > i)
tbslen = (i + 7) / 8;
if (!BN_bin2bn(tbs, tbslen, e)) {
WARN("Failure to convert dgst to e\n");
QATerr(QAT_F_QAT_SM2_SIGN, ERR_R_BN_LIB);
goto err;
}
/* If still too long truncate remaining bits with a shift */
if ((8 * tbslen > i) && !BN_rshift(e, e, 8 - (i & 0x7))) {
WARN("Failure to truncate e\n");
QATerr(QAT_F_QAT_SM2_SIGN, ERR_R_BN_LIB);
goto err;
}
do
if (!BN_rand_range(k, order)) {
WARN("Failure to get random number k\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_K_RAND_GENERATE_FAILURE);
goto err;
}
while (BN_is_zero(k)) ;
/* SM2 BabaSSL implementaion uses ECDSA hence following
* the same */
if ((s = ECDSA_SIG_new()) == NULL) {
WARN("Failure to allocate SM2_SIG\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_SM2_SIG_MALLOC_FAILURE);
goto err;
}
sig_r = BN_new();
sig_s = BN_new();
if (ECDSA_SIG_set0(s, sig_r, sig_s) == 0) {
WARN("Failure to allocate r and s values to assign to the ECDSA_SIG\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_SM2_SIG_SET_R_S_FAILURE);
goto err;
}
if ((inst_num = get_instance(QAT_INSTANCE_ASYM, QAT_INSTANCE_ANY))
== QAT_INVALID_INSTANCE) {
WARN("Failure to get another instance\n");
if (qat_get_sw_fallback_enabled()) {
WARN("Failed to get an instance - fallback to SW - %s\n", __func__);
fallback = 1;
goto err;
} else {
QATerr(QAT_F_QAT_SM2_SIGN, ERR_R_INTERNAL_ERROR);
goto err;
}
}
qat_svm = !qat_instance_details[inst_num].qat_instance_info.requiresPhysicallyContiguousMemory;
opData = (CpaCyEcsm2SignOpData *)
OPENSSL_zalloc(sizeof(CpaCyEcsm2SignOpData));
if (opData == NULL) {
WARN("Failed to allocate memory for opData\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_OPDATA_MALLOC_FAILURE);
goto err;
}
/* may be made dynamic */
buflen = QAT_GFP_SM2_SIZE_IN_BITS;
/* Only this field type for the operation is supported */
opData->fieldType = CPA_CY_EC_FIELD_TYPE_PRIME;
/*
* k - scalar multiplier (k > 0 and k < n)
* e - digest of the message
* d - private key (d > 0 and d < n)
*/
# ifdef QAT_OPENSSL_PROVIDER
if ((qat_BN_to_FB_for_sm2(&(opData->k), k, qat_svm) != 1) ||
(qat_BN_to_FB(&(opData->e), e, qat_svm) != 1) ||
(qat_BN_to_FB(&(opData->d), (BIGNUM *)priv_key, qat_svm) != 1)) {
WARN("Failure to convert e, tbs and priv_key to flatbuffer\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_PRIV_KEY_K_E_D_CONVERT_TO_FB_FAILURE);
goto err;
}
# else
if ((qat_BN_to_FB(&(opData->k), k, qat_svm) != 1) ||
(qat_BN_to_FB(&(opData->e), e, qat_svm) != 1) ||
(qat_BN_to_FB(&(opData->d), (BIGNUM *)priv_key, qat_svm) != 1)) {
WARN("Failure to convert e, tbs and priv_key to flatbuffer\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_PRIV_KEY_K_E_D_CONVERT_TO_FB_FAILURE);
goto err;
}
# endif
pResultR = (CpaFlatBuffer *) OPENSSL_malloc(sizeof(CpaFlatBuffer));
if (!pResultR) {
WARN("Failed to allocate memory for pResultR\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_PRESULTR_MALLOC_FAILURE);
goto err;
}
pResultR->pData =
(Cpa8U *) qat_mem_alloc(buflen, qat_svm, __FILE__, __LINE__);
if (!pResultR->pData) {
WARN("Failed to allocate memory for pResultR data\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_PRESULTR_PDATA_MALLOC_FAILURE);
goto err;
}
pResultR->dataLenInBytes = (Cpa32U) buflen;
pResultS = (CpaFlatBuffer *) OPENSSL_malloc(sizeof(CpaFlatBuffer));
if (!pResultS) {
WARN("Failed to allocate memory for pResultS\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_PRESULTS_MALLOC_FAILURE);
goto err;
}
pResultS->pData =
(Cpa8U *) qat_mem_alloc(buflen, qat_svm, __FILE__, __LINE__);
if (!pResultS->pData) {
WARN("Failed to allocate memory for pResultS data\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_PRESULTS_PDATA_MALLOC_FAILURE);
goto err;
}
pResultS->dataLenInBytes = (Cpa32U) buflen;
tlv = qat_check_create_local_variables();
if (NULL == tlv) {
WARN("could not create local variables\n");
QATerr(QAT_F_QAT_SM2_SIGN, ERR_R_INTERNAL_ERROR);
goto err;
}
qat_init_op_done(&op_done);
if (op_done.job != NULL) {
if (qat_setup_async_event_notification(op_done.job) == 0) {
WARN("Failed to setup async event notification\n");
QATerr(QAT_F_QAT_SM2_SIGN, ERR_R_INTERNAL_ERROR);
qat_cleanup_op_done(&op_done);
goto err;
}
}
CRYPTO_QAT_LOG("KX - %s\n", __func__);
do {
if (status == CPA_STATUS_RETRY && (inst_num = get_instance(QAT_INSTANCE_ASYM, qat_svm))
== QAT_INVALID_INSTANCE) {
WARN("Failure to get another instance\n");
if (qat_get_sw_fallback_enabled()) {
CRYPTO_QAT_LOG
("Failed to get an instance - fallback to SW - %s\n",
__func__);
fallback = 1;
} else {
QATerr(QAT_F_QAT_SM2_SIGN, ERR_R_INTERNAL_ERROR);
}
if (op_done.job != NULL) {
qat_clear_async_event_notification(op_done.job);
}
qat_cleanup_op_done(&op_done);
goto err;
}
CRYPTO_QAT_LOG("AU - %s\n", __func__);
DUMP_SM2_SIGN(qat_instance_handles[inst_num], opData, pResultR,
pResultS);
status = cpaCyEcsm2Sign(qat_instance_handles[inst_num],
qat_sm2SignCallbackFn,
&op_done,
opData, &bSM2SignStatus, pResultR, pResultS);
if (status == CPA_STATUS_RETRY) {
if (op_done.job == NULL) {
usleep(ulPollInterval +
(qatPerformOpRetries %
QAT_RETRY_BACKOFF_MODULO_DIVISOR));
qatPerformOpRetries++;
if (iMsgRetry != QAT_INFINITE_MAX_NUM_RETRIES) {
if (qatPerformOpRetries >= iMsgRetry) {
WARN("No. of retries exceeded max retry : %d\n",
iMsgRetry);
break;
}
}
} else {
if ((qat_wake_job(op_done.job, ASYNC_STATUS_EAGAIN) == 0) ||
(qat_pause_job(op_done.job, ASYNC_STATUS_EAGAIN) == 0)) {
WARN("qat_wake_job or qat_pause_job failed\n");
break;
}
}
}
}
while (status == CPA_STATUS_RETRY);
if (status != CPA_STATUS_SUCCESS) {
WARN("Failed to submit request to qat - status = %d\n", status);
if (qat_get_sw_fallback_enabled() &&
(status == CPA_STATUS_RESTARTING || status == CPA_STATUS_FAIL)) {
CRYPTO_QAT_LOG
("Failed to submit request to qat inst_num %d device_id %d - fallback to SW - %s\n",
inst_num,
qat_instance_details[inst_num].qat_instance_info.
physInstId.packageId, __func__);
fallback = 1;
} else {
QATerr(QAT_F_QAT_SM2_SIGN, ERR_R_INTERNAL_ERROR);
}
if (op_done.job != NULL) {
qat_clear_async_event_notification(op_done.job);
}
qat_cleanup_op_done(&op_done);
goto err;
}
QAT_INC_IN_FLIGHT_REQS(num_requests_in_flight, tlv);
if (qat_use_signals()) {
if (tlv->localOpsInFlight == 1) {
if (sem_post(&hw_polling_thread_sem) != 0) {
WARN("hw sem_post failed!, hw_polling_thread_sem address: %p.\n", &hw_polling_thread_sem);
QATerr(QAT_F_QAT_SM2_SIGN, ERR_R_INTERNAL_ERROR);
QAT_DEC_IN_FLIGHT_REQS(num_requests_in_flight, tlv);
goto err;
}
}
}
if (qat_get_sw_fallback_enabled()) {
CRYPTO_QAT_LOG("Submit success qat inst_num %d device_id %d - %s\n",
inst_num,
qat_instance_details[inst_num].
qat_instance_info.physInstId.packageId, __func__);
}
if (enable_heuristic_polling) {
QAT_ATOMIC_INC(num_asym_requests_in_flight);
}
do {
if (op_done.job != NULL) {
/* If we get a failure on qat_pause_job then we will
not flag an error here and quit because we have
an asynchronous request in flight.
We don't want to start cleaning up data
structures that are still being used. If
qat_pause_job fails we will just yield and
loop around and try again until the request
completes and we can continue. */
if ((job_ret = qat_pause_job(op_done.job, ASYNC_STATUS_OK)) == 0)
sched_yield();
} else {
sched_yield();
}
}
while (!op_done.flag || QAT_CHK_JOB_RESUMED_UNEXPECTEDLY(job_ret));
DUMP_SM2_SIGN_OUTPUT(bSM2SignStatus, pResultR, pResultS);
QAT_DEC_IN_FLIGHT_REQS(num_requests_in_flight, tlv);
if (op_done.verifyResult != CPA_TRUE) {
WARN("Verification of result failed\n");
if (qat_get_sw_fallback_enabled() && op_done.status == CPA_STATUS_FAIL) {
CRYPTO_QAT_LOG
("Verification of result failed for qat inst_num %d device_id %d - fallback to SW - %s\n",
inst_num,
qat_instance_details[inst_num].qat_instance_info.
physInstId.packageId, __func__);
fallback = 1;
} else {
QATerr(QAT_F_QAT_SM2_SIGN, ERR_R_INTERNAL_ERROR);
}
qat_cleanup_op_done(&op_done);
goto err;
}
qat_cleanup_op_done(&op_done);
/* Convert the flatbuffer results back to a BN */
BN_bin2bn(pResultR->pData, pResultR->dataLenInBytes, sig_r);
BN_bin2bn(pResultS->pData, pResultS->dataLenInBytes, sig_s);
sigleni = i2d_ECDSA_SIG(s, &sig);
if (sigleni < 0) {
QATerr(QAT_F_QAT_SM2_SIGN, ERR_R_INTERNAL_ERROR);
goto err;
}
*siglen = (unsigned int)sigleni;
ret = 1;
DEBUG("Sign operation successful\n");
err:
if (!ret) {
if (s != NULL) {
ECDSA_SIG_free(s);
s = NULL;
}
if (siglen != NULL)
*siglen = 0;
}
if (pResultR) {
QAT_MEM_FREE_FLATBUFF(*pResultR, qat_svm);
OPENSSL_free(pResultR);
}
if (pResultS) {
QAT_MEM_FREE_FLATBUFF(*pResultS, qat_svm);
OPENSSL_free(pResultS);
}
if (opData) {
QAT_CLEANSE_MEMFREE_NONZERO_FLATBUFF(opData->k, qat_svm);
QAT_CLEANSE_MEMFREE_NONZERO_FLATBUFF(opData->d, qat_svm);
QAT_CLEANSE_MEMFREE_NONZERO_FLATBUFF(opData->e, qat_svm);
OPENSSL_free(opData);
}
if (bctx) {
BN_CTX_end(bctx);
BN_CTX_free(bctx);
}
if (fallback) {
WARN("- Fallback to software mode.\n");
CRYPTO_QAT_LOG("Resubmitting request to SW - %s\n", __func__);
# ifdef QAT_OPENSSL_PROVIDER
/* When using OpenSSL 3 provider API */
sw_sm2_signature = get_def_signature_sm2();
if (sw_sm2_signature.digest_sign) {
return sw_sm2_signature.digest_sign((void *)smctx, sig, siglen,
sigsize, tbs, tbslen);
} else {
if (sw_sm2_signature.digest_sign_update == NULL ||
sw_sm2_signature.digest_sign_final == NULL) {
WARN("SM2 digest_sign_update is NULL or digest_sign_final is NULL\n");
QATerr(QAT_F_QAT_SM2_SIGN, QAT_R_SM2_SIGN_NULL);
return 0;
}
if (sw_sm2_signature.
digest_sign_update((void *)smctx, tbs, tbslen) <= 0) {
return 0;
}
return sw_sm2_signature.digest_sign_final((void *)smctx, sig,
siglen, sigsize);
}
# else
# ifdef QAT_OPENSSL_3
/* When using OpenSSL 3 legacy engine API */
sw_ctx = OPENSSL_malloc(sizeof(QAT_PROV_SM2_CTX));
sw_ctx->mdsize = 0;
sw_ctx->ec = (EC_KEY *)eckey;
md = (EVP_MD *)EVP_sm3();
bg = sm2_compute_msg_hash(md, eckey, smctx->id, smctx->id_len, tbs,
tbslen);
dgst = OPENSSL_zalloc(SM3_DIGEST_LENGTH);
dlen = BN_bn2bin(bg, dgst);
sw_sm2_signature = get_def_signature_sm2();
if (sw_sm2_signature.sign) {
ret = sw_sm2_signature.sign(sw_ctx, sig, siglen, sig_sz, dgst, dlen);