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
|
/*
* Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_CRYPTO_EVP_H
# define OSSL_CRYPTO_EVP_H
# pragma once
# include <openssl/evp.h>
# include <openssl/core_dispatch.h>
# include "internal/refcount.h"
# include "crypto/ecx.h"
/*
* Don't free up md_ctx->pctx in EVP_MD_CTX_reset, use the reserved flag
* values in evp.h
*/
#define EVP_MD_CTX_FLAG_KEEP_PKEY_CTX 0x0400
/*
* An EVP_PKEY_CTX can have the following support states:
*
* Supports legacy implementations only:
*
* engine != NULL || keytype == NULL
*
* Supports provided implementations:
*
* engine == NULL && keytype != NULL
*/
#define evp_pkey_ctx_is_legacy(ctx) \
((ctx)->engine != NULL || (ctx)->keytype == NULL)
#define evp_pkey_ctx_is_provided(ctx) \
(!evp_pkey_ctx_is_legacy(ctx))
struct evp_pkey_ctx_st {
/* Actual operation */
int operation;
/*
* Library context, property query, keytype and keymgmt associated with
* this context
*/
OSSL_LIB_CTX *libctx;
char *propquery;
const char *keytype;
EVP_KEYMGMT *keymgmt;
union {
struct {
void *genctx;
} keymgmt;
struct {
EVP_KEYEXCH *exchange;
void *exchprovctx;
} kex;
struct {
EVP_SIGNATURE *signature;
void *sigprovctx;
} sig;
struct {
EVP_ASYM_CIPHER *cipher;
void *ciphprovctx;
} ciph;
struct {
EVP_KEM *kem;
void *kemprovctx;
} encap;
} op;
/*
* Cached parameters. Inits of operations that depend on these should
* call evp_pkey_ctx_use_delayed_data() when the operation has been set
* up properly.
*/
struct {
/* Distinguishing Identifier, ISO/IEC 15946-3, FIPS 196 */
char *dist_id_name; /* The name used with EVP_PKEY_CTX_ctrl_str() */
void *dist_id; /* The distinguishing ID itself */
size_t dist_id_len; /* The length of the distinguishing ID */
/* Indicators of what has been set. Keep them together! */
unsigned int dist_id_set : 1;
} cached_parameters;
/* Application specific data, usually used by the callback */
void *app_data;
/* Keygen callback */
EVP_PKEY_gen_cb *pkey_gencb;
/* implementation specific keygen data */
int *keygen_info;
int keygen_info_count;
/* Legacy fields below */
/* EVP_PKEY identity */
int legacy_keytype;
/* Method associated with this operation */
const EVP_PKEY_METHOD *pmeth;
/* Engine that implements this method or NULL if builtin */
ENGINE *engine;
/* Key: may be NULL */
EVP_PKEY *pkey;
/* Peer key for key agreement, may be NULL */
EVP_PKEY *peerkey;
/* Algorithm specific data */
void *data;
/* Indicator if digest_custom needs to be called */
unsigned int flag_call_digest_custom:1;
/*
* Used to support taking custody of memory in the case of a provider being
* used with the deprecated EVP_PKEY_CTX_set_rsa_keygen_pubexp() API. This
* member should NOT be used for any other purpose and should be removed
* when said deprecated API is excised completely.
*/
BIGNUM *rsa_pubexp;
} /* EVP_PKEY_CTX */ ;
#define EVP_PKEY_FLAG_DYNAMIC 1
struct evp_pkey_method_st {
int pkey_id;
int flags;
int (*init) (EVP_PKEY_CTX *ctx);
int (*copy) (EVP_PKEY_CTX *dst, const EVP_PKEY_CTX *src);
void (*cleanup) (EVP_PKEY_CTX *ctx);
int (*paramgen_init) (EVP_PKEY_CTX *ctx);
int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
int (*keygen_init) (EVP_PKEY_CTX *ctx);
int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
int (*sign_init) (EVP_PKEY_CTX *ctx);
int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
const unsigned char *tbs, size_t tbslen);
int (*verify_init) (EVP_PKEY_CTX *ctx);
int (*verify) (EVP_PKEY_CTX *ctx,
const unsigned char *sig, size_t siglen,
const unsigned char *tbs, size_t tbslen);
int (*verify_recover_init) (EVP_PKEY_CTX *ctx);
int (*verify_recover) (EVP_PKEY_CTX *ctx,
unsigned char *rout, size_t *routlen,
const unsigned char *sig, size_t siglen);
int (*signctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
EVP_MD_CTX *mctx);
int (*verifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
EVP_MD_CTX *mctx);
int (*encrypt_init) (EVP_PKEY_CTX *ctx);
int (*encrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen);
int (*decrypt_init) (EVP_PKEY_CTX *ctx);
int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen);
int (*derive_init) (EVP_PKEY_CTX *ctx);
int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
const unsigned char *tbs, size_t tbslen);
int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
size_t siglen, const unsigned char *tbs,
size_t tbslen);
int (*check) (EVP_PKEY *pkey);
int (*public_check) (EVP_PKEY *pkey);
int (*param_check) (EVP_PKEY *pkey);
int (*digest_custom) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
} /* EVP_PKEY_METHOD */ ;
DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);
const EVP_PKEY_METHOD *ossl_dh_pkey_method(void);
const EVP_PKEY_METHOD *ossl_dhx_pkey_method(void);
const EVP_PKEY_METHOD *ossl_dsa_pkey_method(void);
const EVP_PKEY_METHOD *ossl_ec_pkey_method(void);
const EVP_PKEY_METHOD *ossl_ecx25519_pkey_method(void);
const EVP_PKEY_METHOD *ossl_ecx448_pkey_method(void);
const EVP_PKEY_METHOD *ossl_ed25519_pkey_method(void);
const EVP_PKEY_METHOD *ossl_ed448_pkey_method(void);
const EVP_PKEY_METHOD *ossl_rsa_pkey_method(void);
const EVP_PKEY_METHOD *ossl_rsa_pss_pkey_method(void);
struct evp_mac_st {
OSSL_PROVIDER *prov;
int name_id;
const char *description;
CRYPTO_REF_COUNT refcnt;
CRYPTO_RWLOCK *lock;
OSSL_FUNC_mac_newctx_fn *newctx;
OSSL_FUNC_mac_dupctx_fn *dupctx;
OSSL_FUNC_mac_freectx_fn *freectx;
OSSL_FUNC_mac_init_fn *init;
OSSL_FUNC_mac_update_fn *update;
OSSL_FUNC_mac_final_fn *final;
OSSL_FUNC_mac_gettable_params_fn *gettable_params;
OSSL_FUNC_mac_gettable_ctx_params_fn *gettable_ctx_params;
OSSL_FUNC_mac_settable_ctx_params_fn *settable_ctx_params;
OSSL_FUNC_mac_get_params_fn *get_params;
OSSL_FUNC_mac_get_ctx_params_fn *get_ctx_params;
OSSL_FUNC_mac_set_ctx_params_fn *set_ctx_params;
};
struct evp_kdf_st {
OSSL_PROVIDER *prov;
int name_id;
const char *description;
CRYPTO_REF_COUNT refcnt;
CRYPTO_RWLOCK *lock;
OSSL_FUNC_kdf_newctx_fn *newctx;
OSSL_FUNC_kdf_dupctx_fn *dupctx;
OSSL_FUNC_kdf_freectx_fn *freectx;
OSSL_FUNC_kdf_reset_fn *reset;
OSSL_FUNC_kdf_derive_fn *derive;
OSSL_FUNC_kdf_gettable_params_fn *gettable_params;
OSSL_FUNC_kdf_gettable_ctx_params_fn *gettable_ctx_params;
OSSL_FUNC_kdf_settable_ctx_params_fn *settable_ctx_params;
OSSL_FUNC_kdf_get_params_fn *get_params;
OSSL_FUNC_kdf_get_ctx_params_fn *get_ctx_params;
OSSL_FUNC_kdf_set_ctx_params_fn *set_ctx_params;
};
struct evp_md_st {
/* nid */
int type;
/* Legacy structure members */
int pkey_type;
int md_size;
unsigned long flags;
int (*init) (EVP_MD_CTX *ctx);
int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
int (*cleanup) (EVP_MD_CTX *ctx);
int block_size;
int ctx_size; /* how big does the ctx->md_data need to be */
/* control function */
int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
/* New structure members */
/* Above comment to be removed when legacy has gone */
int name_id;
const char *description;
OSSL_PROVIDER *prov;
CRYPTO_REF_COUNT refcnt;
CRYPTO_RWLOCK *lock;
OSSL_FUNC_digest_newctx_fn *newctx;
OSSL_FUNC_digest_init_fn *dinit;
OSSL_FUNC_digest_update_fn *dupdate;
OSSL_FUNC_digest_final_fn *dfinal;
OSSL_FUNC_digest_digest_fn *digest;
OSSL_FUNC_digest_freectx_fn *freectx;
OSSL_FUNC_digest_dupctx_fn *dupctx;
OSSL_FUNC_digest_get_params_fn *get_params;
OSSL_FUNC_digest_set_ctx_params_fn *set_ctx_params;
OSSL_FUNC_digest_get_ctx_params_fn *get_ctx_params;
OSSL_FUNC_digest_gettable_params_fn *gettable_params;
OSSL_FUNC_digest_settable_ctx_params_fn *settable_ctx_params;
OSSL_FUNC_digest_gettable_ctx_params_fn *gettable_ctx_params;
} /* EVP_MD */ ;
struct evp_cipher_st {
int nid;
int block_size;
/* Default value for variable length ciphers */
int key_len;
int iv_len;
/* Legacy structure members */
/* Various flags */
unsigned long flags;
/* init key */
int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
/* encrypt/decrypt data */
int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
/* cleanup ctx */
int (*cleanup) (EVP_CIPHER_CTX *);
/* how big ctx->cipher_data needs to be */
int ctx_size;
/* Populate a ASN1_TYPE with parameters */
int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
/* Get parameters from a ASN1_TYPE */
int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
/* Miscellaneous operations */
int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr);
/* Application data */
void *app_data;
/* New structure members */
/* Above comment to be removed when legacy has gone */
int name_id;
const char *description;
OSSL_PROVIDER *prov;
CRYPTO_REF_COUNT refcnt;
CRYPTO_RWLOCK *lock;
OSSL_FUNC_cipher_newctx_fn *newctx;
OSSL_FUNC_cipher_encrypt_init_fn *einit;
OSSL_FUNC_cipher_decrypt_init_fn *dinit;
OSSL_FUNC_cipher_update_fn *cupdate;
OSSL_FUNC_cipher_final_fn *cfinal;
OSSL_FUNC_cipher_cipher_fn *ccipher;
OSSL_FUNC_cipher_freectx_fn *freectx;
OSSL_FUNC_cipher_dupctx_fn *dupctx;
OSSL_FUNC_cipher_get_params_fn *get_params;
OSSL_FUNC_cipher_get_ctx_params_fn *get_ctx_params;
OSSL_FUNC_cipher_set_ctx_params_fn *set_ctx_params;
OSSL_FUNC_cipher_gettable_params_fn *gettable_params;
OSSL_FUNC_cipher_gettable_ctx_params_fn *gettable_ctx_params;
OSSL_FUNC_cipher_settable_ctx_params_fn *settable_ctx_params;
} /* EVP_CIPHER */ ;
/* Macros to code block cipher wrappers */
/* Wrapper functions for each cipher mode */
#define EVP_C_DATA(kstruct, ctx) \
((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
#define BLOCK_CIPHER_ecb_loop() \
size_t i, bl; \
bl = EVP_CIPHER_CTX_cipher(ctx)->block_size; \
if (inl < bl) return 1;\
inl -= bl; \
for (i=0; i <= inl; i+=bl)
#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
BLOCK_CIPHER_ecb_loop() \
cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
return 1;\
}
#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
while(inl>=EVP_MAXCHUNK) {\
int num = EVP_CIPHER_CTX_num(ctx);\
cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, ctx->iv, &num); \
EVP_CIPHER_CTX_set_num(ctx, num);\
inl-=EVP_MAXCHUNK;\
in +=EVP_MAXCHUNK;\
out+=EVP_MAXCHUNK;\
}\
if (inl) {\
int num = EVP_CIPHER_CTX_num(ctx);\
cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, ctx->iv, &num); \
EVP_CIPHER_CTX_set_num(ctx, num);\
}\
return 1;\
}
#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
while(inl>=EVP_MAXCHUNK) \
{\
cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, ctx->iv, EVP_CIPHER_CTX_encrypting(ctx));\
inl-=EVP_MAXCHUNK;\
in +=EVP_MAXCHUNK;\
out+=EVP_MAXCHUNK;\
}\
if (inl)\
cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, ctx->iv, EVP_CIPHER_CTX_encrypting(ctx));\
return 1;\
}
#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
size_t chunk = EVP_MAXCHUNK;\
if (cbits == 1) chunk >>= 3;\
if (inl < chunk) chunk = inl;\
while (inl && inl >= chunk)\
{\
int num = EVP_CIPHER_CTX_num(ctx);\
cprefix##_cfb##cbits##_encrypt(in, out, (long) \
((cbits == 1) \
&& !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
? chunk*8 : chunk), \
&EVP_C_DATA(kstruct, ctx)->ksched, ctx->iv,\
&num, EVP_CIPHER_CTX_encrypting(ctx));\
EVP_CIPHER_CTX_set_num(ctx, num);\
inl -= chunk;\
in += chunk;\
out += chunk;\
if (inl < chunk) chunk = inl;\
}\
return 1;\
}
#define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
#define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
key_len, iv_len, flags, init_key, cleanup, \
set_asn1, get_asn1, ctrl) \
static const EVP_CIPHER cname##_##mode = { \
nid##_##nmode, block_size, key_len, iv_len, \
flags | EVP_CIPH_##MODE##_MODE, \
init_key, \
cname##_##mode##_cipher, \
cleanup, \
sizeof(kstruct), \
set_asn1, get_asn1,\
ctrl, \
NULL \
}; \
const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
iv_len, flags, init_key, cleanup, set_asn1, \
get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
#define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
iv_len, cbits, flags, init_key, cleanup, \
set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
key_len, iv_len, flags, init_key, cleanup, set_asn1, \
get_asn1, ctrl)
#define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
iv_len, cbits, flags, init_key, cleanup, \
set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
key_len, iv_len, flags, init_key, cleanup, set_asn1, \
get_asn1, ctrl)
#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
flags, init_key, cleanup, set_asn1, \
get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
#define BLOCK_CIPHER_defs(cname, kstruct, \
nid, block_size, key_len, iv_len, cbits, flags, \
init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
init_key, cleanup, set_asn1, get_asn1, ctrl)
/*-
#define BLOCK_CIPHER_defs(cname, kstruct, \
nid, block_size, key_len, iv_len, flags,\
init_key, cleanup, set_asn1, get_asn1, ctrl)\
static const EVP_CIPHER cname##_cbc = {\
nid##_cbc, block_size, key_len, iv_len, \
flags | EVP_CIPH_CBC_MODE,\
init_key,\
cname##_cbc_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl, \
NULL \
};\
const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
static const EVP_CIPHER cname##_cfb = {\
nid##_cfb64, 1, key_len, iv_len, \
flags | EVP_CIPH_CFB_MODE,\
init_key,\
cname##_cfb_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl,\
NULL \
};\
const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
static const EVP_CIPHER cname##_ofb = {\
nid##_ofb64, 1, key_len, iv_len, \
flags | EVP_CIPH_OFB_MODE,\
init_key,\
cname##_ofb_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl,\
NULL \
};\
const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
static const EVP_CIPHER cname##_ecb = {\
nid##_ecb, block_size, key_len, iv_len, \
flags | EVP_CIPH_ECB_MODE,\
init_key,\
cname##_ecb_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl,\
NULL \
};\
const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
*/
#define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
block_size, key_len, iv_len, cbits, \
flags, init_key, \
cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
cbits, flags, init_key, cleanup, set_asn1, \
get_asn1, ctrl)
#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
(fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \
cipher##_init_key, NULL, NULL, NULL, NULL)
typedef struct {
unsigned char iv[EVP_MAX_IV_LENGTH];
unsigned int iv_len;
unsigned int tag_len;
} evp_cipher_aead_asn1_params;
int evp_cipher_param_to_asn1_ex(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
evp_cipher_aead_asn1_params *params);
int evp_cipher_asn1_to_param_ex(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
evp_cipher_aead_asn1_params *params);
/*
* To support transparent execution of operation in backends other
* than the "origin" key, we support transparent export/import to
* those providers, and maintain a cache of the imported keydata,
* so we don't need to redo the export/import every time we perform
* the same operation in that same provider.
* This requires that the "origin" backend (whether it's a legacy or a
* provider "origin") implements exports, and that the target provider
* has an EVP_KEYMGMT that implements import.
*/
typedef struct {
EVP_KEYMGMT *keymgmt;
void *keydata;
} OP_CACHE_ELEM;
DEFINE_STACK_OF(OP_CACHE_ELEM)
/*
* An EVP_PKEY can have the following states:
*
* untyped & empty:
*
* type == EVP_PKEY_NONE && keymgmt == NULL
*
* typed & empty:
*
* (type != EVP_PKEY_NONE && pkey.ptr == NULL) ## legacy (libcrypto only)
* || (keymgmt != NULL && keydata == NULL) ## provider side
*
* fully assigned:
*
* (type != EVP_PKEY_NONE && pkey.ptr != NULL) ## legacy (libcrypto only)
* || (keymgmt != NULL && keydata != NULL) ## provider side
*
* The easiest way to detect a legacy key is:
*
* keymgmt == NULL && type != EVP_PKEY_NONE
*
* The easiest way to detect a provider side key is:
*
* keymgmt != NULL
*/
#define evp_pkey_is_blank(pk) \
((pk)->type == EVP_PKEY_NONE && (pk)->keymgmt == NULL)
#define evp_pkey_is_typed(pk) \
((pk)->type != EVP_PKEY_NONE || (pk)->keymgmt != NULL)
#ifndef FIPS_MODULE
# define evp_pkey_is_assigned(pk) \
((pk)->pkey.ptr != NULL || (pk)->keydata != NULL)
#else
# define evp_pkey_is_assigned(pk) \
((pk)->keydata != NULL)
#endif
#define evp_pkey_is_legacy(pk) \
((pk)->type != EVP_PKEY_NONE && (pk)->keymgmt == NULL)
#define evp_pkey_is_provided(pk) \
((pk)->keymgmt != NULL)
union legacy_pkey_st {
void *ptr;
struct rsa_st *rsa; /* RSA */
# ifndef OPENSSL_NO_DSA
struct dsa_st *dsa; /* DSA */
# endif
# ifndef OPENSSL_NO_DH
struct dh_st *dh; /* DH */
# endif
# ifndef OPENSSL_NO_EC
struct ec_key_st *ec; /* ECC */
ECX_KEY *ecx; /* X25519, X448, Ed25519, Ed448 */
# endif
};
struct evp_pkey_st {
/* == Legacy attributes == */
int type;
int save_type;
# ifndef FIPS_MODULE
/*
* Legacy key "origin" is composed of a pointer to an EVP_PKEY_ASN1_METHOD,
* a pointer to a low level key and possibly a pointer to an engine.
*/
const EVP_PKEY_ASN1_METHOD *ameth;
ENGINE *engine;
ENGINE *pmeth_engine; /* If not NULL public key ENGINE to use */
/* Union to store the reference to an origin legacy key */
union legacy_pkey_st pkey;
/* Union to store the reference to a non-origin legacy key */
union legacy_pkey_st legacy_cache_pkey;
# endif
/* == Common attributes == */
CRYPTO_REF_COUNT references;
CRYPTO_RWLOCK *lock;
STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
int save_parameters;
#ifndef FIPS_MODULE
CRYPTO_EX_DATA ex_data;
#endif
/* == Provider attributes == */
/*
* Provider keydata "origin" is composed of a pointer to an EVP_KEYMGMT
* and a pointer to the provider side key data. This is never used at
* the same time as the legacy key data above.
*/
EVP_KEYMGMT *keymgmt;
void *keydata;
/*
* If any libcrypto code does anything that may modify the keydata
* contents, this dirty counter must be incremented.
*/
size_t dirty_cnt;
/*
* To support transparent execution of operation in backends other
* than the "origin" key, we support transparent export/import to
* those providers, and maintain a cache of the imported keydata,
* so we don't need to redo the export/import every time we perform
* the same operation in that same provider.
*/
STACK_OF(OP_CACHE_ELEM) *operation_cache;
/*
* We keep a copy of that "origin"'s dirty count, so we know if the
* operation cache needs flushing.
*/
size_t dirty_cnt_copy;
/* Cache of key object information */
struct {
int bits;
int security_bits;
int size;
} cache;
} /* EVP_PKEY */ ;
#define EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) \
((ctx)->operation == EVP_PKEY_OP_SIGN \
|| (ctx)->operation == EVP_PKEY_OP_SIGNCTX \
|| (ctx)->operation == EVP_PKEY_OP_VERIFY \
|| (ctx)->operation == EVP_PKEY_OP_VERIFYCTX \
|| (ctx)->operation == EVP_PKEY_OP_VERIFYRECOVER)
#define EVP_PKEY_CTX_IS_DERIVE_OP(ctx) \
((ctx)->operation == EVP_PKEY_OP_DERIVE)
#define EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) \
((ctx)->operation == EVP_PKEY_OP_ENCRYPT \
|| (ctx)->operation == EVP_PKEY_OP_DECRYPT)
#define EVP_PKEY_CTX_IS_GEN_OP(ctx) \
((ctx)->operation == EVP_PKEY_OP_PARAMGEN \
|| (ctx)->operation == EVP_PKEY_OP_KEYGEN)
#define EVP_PKEY_CTX_IS_FROMDATA_OP(ctx) \
((ctx)->operation == EVP_PKEY_OP_FROMDATA)
#define EVP_PKEY_CTX_IS_KEM_OP(ctx) \
((ctx)->operation == EVP_PKEY_OP_ENCAPSULATE \
|| (ctx)->operation == EVP_PKEY_OP_DECAPSULATE)
void openssl_add_all_ciphers_int(void);
void openssl_add_all_digests_int(void);
void evp_cleanup_int(void);
void evp_app_cleanup_int(void);
void *evp_pkey_export_to_provider(EVP_PKEY *pk, OSSL_LIB_CTX *libctx,
EVP_KEYMGMT **keymgmt,
const char *propquery);
#ifndef FIPS_MODULE
int evp_pkey_copy_downgraded(EVP_PKEY **dest, const EVP_PKEY *src);
void *evp_pkey_get_legacy(EVP_PKEY *pk);
void evp_pkey_free_legacy(EVP_PKEY *x);
EVP_PKEY *evp_pkcs82pkey_legacy(const PKCS8_PRIV_KEY_INFO *p8inf,
OSSL_LIB_CTX *libctx, const char *propq);
#endif
/*
* KEYMGMT utility functions
*/
/*
* Key import structure and helper function, to be used as an export callback
*/
struct evp_keymgmt_util_try_import_data_st {
EVP_KEYMGMT *keymgmt;
void *keydata;
int selection;
};
int evp_keymgmt_util_try_import(const OSSL_PARAM params[], void *arg);
int evp_keymgmt_util_assign_pkey(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt,
void *keydata);
EVP_PKEY *evp_keymgmt_util_make_pkey(EVP_KEYMGMT *keymgmt, void *keydata);
int evp_keymgmt_util_export(const EVP_PKEY *pk, int selection,
OSSL_CALLBACK *export_cb, void *export_cbarg);
void *evp_keymgmt_util_export_to_provider(EVP_PKEY *pk, EVP_KEYMGMT *keymgmt);
OP_CACHE_ELEM *evp_keymgmt_util_find_operation_cache(EVP_PKEY *pk,
EVP_KEYMGMT *keymgmt);
int evp_keymgmt_util_clear_operation_cache(EVP_PKEY *pk, int locking);
int evp_keymgmt_util_cache_keydata(EVP_PKEY *pk,
EVP_KEYMGMT *keymgmt, void *keydata);
void evp_keymgmt_util_cache_keyinfo(EVP_PKEY *pk);
void *evp_keymgmt_util_fromdata(EVP_PKEY *target, EVP_KEYMGMT *keymgmt,
int selection, const OSSL_PARAM params[]);
int evp_keymgmt_util_has(EVP_PKEY *pk, int selection);
int evp_keymgmt_util_match(EVP_PKEY *pk1, EVP_PKEY *pk2, int selection);
int evp_keymgmt_util_copy(EVP_PKEY *to, EVP_PKEY *from, int selection);
void *evp_keymgmt_util_gen(EVP_PKEY *target, EVP_KEYMGMT *keymgmt,
void *genctx, OSSL_CALLBACK *cb, void *cbarg);
int evp_keymgmt_util_get_deflt_digest_name(EVP_KEYMGMT *keymgmt,
void *keydata,
char *mdname, size_t mdname_sz);
/*
* KEYMGMT provider interface functions
*/
void *evp_keymgmt_newdata(const EVP_KEYMGMT *keymgmt);
void evp_keymgmt_freedata(const EVP_KEYMGMT *keymgmt, void *keyddata);
int evp_keymgmt_get_params(const EVP_KEYMGMT *keymgmt,
void *keydata, OSSL_PARAM params[]);
int evp_keymgmt_set_params(const EVP_KEYMGMT *keymgmt,
void *keydata, const OSSL_PARAM params[]);
void *evp_keymgmt_gen_init(const EVP_KEYMGMT *keymgmt, int selection,
const OSSL_PARAM params[]);
int evp_keymgmt_gen_set_template(const EVP_KEYMGMT *keymgmt, void *genctx,
void *template);
int evp_keymgmt_gen_set_params(const EVP_KEYMGMT *keymgmt, void *genctx,
const OSSL_PARAM params[]);
void *evp_keymgmt_gen(const EVP_KEYMGMT *keymgmt, void *genctx,
OSSL_CALLBACK *cb, void *cbarg);
void evp_keymgmt_gen_cleanup(const EVP_KEYMGMT *keymgmt, void *genctx);
void *evp_keymgmt_load(const EVP_KEYMGMT *keymgmt,
const void *objref, size_t objref_sz);
int evp_keymgmt_has(const EVP_KEYMGMT *keymgmt, void *keyddata, int selection);
int evp_keymgmt_validate(const EVP_KEYMGMT *keymgmt, void *keydata,
int selection, int checktype);
int evp_keymgmt_match(const EVP_KEYMGMT *keymgmt,
const void *keydata1, const void *keydata2,
int selection);
int evp_keymgmt_import(const EVP_KEYMGMT *keymgmt, void *keydata,
int selection, const OSSL_PARAM params[]);
const OSSL_PARAM *evp_keymgmt_import_types(const EVP_KEYMGMT *keymgmt,
int selection);
int evp_keymgmt_export(const EVP_KEYMGMT *keymgmt, void *keydata,
int selection, OSSL_CALLBACK *param_cb, void *cbarg);
const OSSL_PARAM *evp_keymgmt_export_types(const EVP_KEYMGMT *keymgmt,
int selection);
void *evp_keymgmt_dup(const EVP_KEYMGMT *keymgmt,
const void *keydata_from, int selection);
/* Pulling defines out of C source files */
# define EVP_RC4_KEY_SIZE 16
# ifndef TLS1_1_VERSION
# define TLS1_1_VERSION 0x0302
# endif
void evp_encode_ctx_set_flags(EVP_ENCODE_CTX *ctx, unsigned int flags);
/* EVP_ENCODE_CTX flags */
/* Don't generate new lines when encoding */
#define EVP_ENCODE_CTX_NO_NEWLINES 1
/* Use the SRP base64 alphabet instead of the standard one */
#define EVP_ENCODE_CTX_USE_SRP_ALPHABET 2
const EVP_CIPHER *evp_get_cipherbyname_ex(OSSL_LIB_CTX *libctx,
const char *name);
const EVP_MD *evp_get_digestbyname_ex(OSSL_LIB_CTX *libctx,
const char *name);
int ossl_pkcs5_pbkdf2_hmac_ex(const char *pass, int passlen,
const unsigned char *salt, int saltlen, int iter,
const EVP_MD *digest, int keylen,
unsigned char *out,
OSSL_LIB_CTX *libctx, const char *propq);
# ifndef FIPS_MODULE
/*
* Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
*
* Return 1 on success, 0 or negative for errors.
*
* In particular they return -2 if any of the params is not supported.
*
* They are not available in FIPS_MODULE as they depend on
* - EVP_PKEY_CTX_{get,set}_params()
* - EVP_PKEY_CTX_{gettable,settable}_params()
*
*/
int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params);
int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params);
EVP_MD_CTX *evp_md_ctx_new_ex(EVP_PKEY *pkey, const ASN1_OCTET_STRING *id,
OSSL_LIB_CTX *libctx, const char *propq);
int evp_pkey_name2type(const char *name);
const char *evp_pkey_type2name(int type);
int evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX *ctx, const void *id, int len);
int evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX *ctx, void *id);
int evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX *ctx, size_t *id_len);
int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx);
# endif /* !defined(FIPS_MODULE) */
int evp_method_store_flush(OSSL_LIB_CTX *libctx);
int evp_set_default_properties_int(OSSL_LIB_CTX *libctx, const char *propq,
int loadconfig);
void evp_md_ctx_clear_digest(EVP_MD_CTX *ctx, int force);
/* Three possible states: */
# define EVP_PKEY_STATE_UNKNOWN 0
# define EVP_PKEY_STATE_LEGACY 1
# define EVP_PKEY_STATE_PROVIDER 2
int evp_pkey_ctx_state(const EVP_PKEY_CTX *ctx);
/* These two must ONLY be called for provider side operations */
int evp_pkey_ctx_ctrl_to_param(EVP_PKEY_CTX *ctx,
int keytype, int optype,
int cmd, int p1, void *p2);
int evp_pkey_ctx_ctrl_str_to_param(EVP_PKEY_CTX *ctx,
const char *name, const char *value);
/* These two must ONLY be called for legacy operations */
int evp_pkey_ctx_set_params_to_ctrl(EVP_PKEY_CTX *ctx, OSSL_PARAM *params);
int evp_pkey_ctx_get_params_to_ctrl(EVP_PKEY_CTX *ctx, OSSL_PARAM *params);
/* This must ONLY be called for legacy EVP_PKEYs */
int evp_pkey_get_params_to_ctrl(const EVP_PKEY *pkey, OSSL_PARAM *params);
/* Same as the public get0 functions but are not const */
# ifndef OPENSSL_NO_DEPRECATED_3_0
DH *evp_pkey_get0_DH_int(const EVP_PKEY *pkey);
EC_KEY *evp_pkey_get0_EC_KEY_int(const EVP_PKEY *pkey);
RSA *evp_pkey_get0_RSA_int(const EVP_PKEY *pkey);
# endif
#endif /* OSSL_CRYPTO_EVP_H */
|