Coverage Report

Created: 2023-09-24 16:04

/src/openssl/crypto/evp/signature.c
Line
Count
Source (jump to first uncovered line)
1
/*
2
 * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
3
 *
4
 * Licensed under the Apache License 2.0 (the "License").  You may not use
5
 * this file except in compliance with the License.  You can obtain a copy
6
 * in the file LICENSE in the source distribution or at
7
 * https://www.openssl.org/source/license.html
8
 */
9
10
#include <stdio.h>
11
#include <stdlib.h>
12
#include <openssl/objects.h>
13
#include <openssl/evp.h>
14
#include "internal/cryptlib.h"
15
#include "crypto/evp.h"
16
#include "internal/provider.h"
17
#include "evp_local.h"
18
19
static EVP_SIGNATURE *evp_signature_new(OSSL_PROVIDER *prov)
20
0
{
21
0
    EVP_SIGNATURE *signature = OPENSSL_zalloc(sizeof(EVP_SIGNATURE));
22
23
0
    if (signature == NULL) {
24
0
        ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
25
0
        return NULL;
26
0
    }
27
28
0
    signature->lock = CRYPTO_THREAD_lock_new();
29
0
    if (signature->lock == NULL) {
30
0
        ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
31
0
        OPENSSL_free(signature);
32
0
        return NULL;
33
0
    }
34
0
    signature->prov = prov;
35
0
    ossl_provider_up_ref(prov);
36
0
    signature->refcnt = 1;
37
38
0
    return signature;
39
0
}
40
41
static void *evp_signature_from_dispatch(int name_id,
42
                                         const OSSL_DISPATCH *fns,
43
                                         OSSL_PROVIDER *prov)
44
0
{
45
0
    EVP_SIGNATURE *signature = NULL;
46
0
    int ctxfncnt = 0, signfncnt = 0, verifyfncnt = 0, verifyrecfncnt = 0;
47
0
    int digsignfncnt = 0, digverifyfncnt = 0;
48
0
    int gparamfncnt = 0, sparamfncnt = 0, gmdparamfncnt = 0, smdparamfncnt = 0;
49
50
0
    if ((signature = evp_signature_new(prov)) == NULL) {
51
0
        ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
52
0
        goto err;
53
0
    }
54
55
0
    signature->name_id = name_id;
56
57
0
    for (; fns->function_id != 0; fns++) {
58
0
        switch (fns->function_id) {
59
0
        case OSSL_FUNC_SIGNATURE_NEWCTX:
60
0
            if (signature->newctx != NULL)
61
0
                break;
62
0
            signature->newctx = OSSL_get_OP_signature_newctx(fns);
63
0
            ctxfncnt++;
64
0
            break;
65
0
        case OSSL_FUNC_SIGNATURE_SIGN_INIT:
66
0
            if (signature->sign_init != NULL)
67
0
                break;
68
0
            signature->sign_init = OSSL_get_OP_signature_sign_init(fns);
69
0
            signfncnt++;
70
0
            break;
71
0
        case OSSL_FUNC_SIGNATURE_SIGN:
72
0
            if (signature->sign != NULL)
73
0
                break;
74
0
            signature->sign = OSSL_get_OP_signature_sign(fns);
75
0
            signfncnt++;
76
0
            break;
77
0
        case OSSL_FUNC_SIGNATURE_VERIFY_INIT:
78
0
            if (signature->verify_init != NULL)
79
0
                break;
80
0
            signature->verify_init = OSSL_get_OP_signature_verify_init(fns);
81
0
            verifyfncnt++;
82
0
            break;
83
0
        case OSSL_FUNC_SIGNATURE_VERIFY:
84
0
            if (signature->verify != NULL)
85
0
                break;
86
0
            signature->verify = OSSL_get_OP_signature_verify(fns);
87
0
            verifyfncnt++;
88
0
            break;
89
0
        case OSSL_FUNC_SIGNATURE_VERIFY_RECOVER_INIT:
90
0
            if (signature->verify_recover_init != NULL)
91
0
                break;
92
0
            signature->verify_recover_init
93
0
                = OSSL_get_OP_signature_verify_recover_init(fns);
94
0
            verifyrecfncnt++;
95
0
            break;
96
0
        case OSSL_FUNC_SIGNATURE_VERIFY_RECOVER:
97
0
            if (signature->verify_recover != NULL)
98
0
                break;
99
0
            signature->verify_recover
100
0
                = OSSL_get_OP_signature_verify_recover(fns);
101
0
            verifyrecfncnt++;
102
0
            break;
103
0
        case OSSL_FUNC_SIGNATURE_DIGEST_SIGN_INIT:
104
0
            if (signature->digest_sign_init != NULL)
105
0
                break;
106
0
            signature->digest_sign_init
107
0
                = OSSL_get_OP_signature_digest_sign_init(fns);
108
0
            digsignfncnt++;
109
0
            break;
110
0
        case OSSL_FUNC_SIGNATURE_DIGEST_SIGN_UPDATE:
111
0
            if (signature->digest_sign_update != NULL)
112
0
                break;
113
0
            signature->digest_sign_update
114
0
                = OSSL_get_OP_signature_digest_sign_update(fns);
115
0
            digsignfncnt++;
116
0
            break;
117
0
        case OSSL_FUNC_SIGNATURE_DIGEST_SIGN_FINAL:
118
0
            if (signature->digest_sign_final != NULL)
119
0
                break;
120
0
            signature->digest_sign_final
121
0
                = OSSL_get_OP_signature_digest_sign_final(fns);
122
0
            digsignfncnt++;
123
0
            break;
124
0
        case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_INIT:
125
0
            if (signature->digest_verify_init != NULL)
126
0
                break;
127
0
            signature->digest_verify_init
128
0
                = OSSL_get_OP_signature_digest_verify_init(fns);
129
0
            digverifyfncnt++;
130
0
            break;
131
0
        case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_UPDATE:
132
0
            if (signature->digest_verify_update != NULL)
133
0
                break;
134
0
            signature->digest_verify_update
135
0
                = OSSL_get_OP_signature_digest_verify_update(fns);
136
0
            digverifyfncnt++;
137
0
            break;
138
0
        case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_FINAL:
139
0
            if (signature->digest_verify_final != NULL)
140
0
                break;
141
0
            signature->digest_verify_final
142
0
                = OSSL_get_OP_signature_digest_verify_final(fns);
143
0
            digverifyfncnt++;
144
0
            break;
145
0
        case OSSL_FUNC_SIGNATURE_FREECTX:
146
0
            if (signature->freectx != NULL)
147
0
                break;
148
0
            signature->freectx = OSSL_get_OP_signature_freectx(fns);
149
0
            ctxfncnt++;
150
0
            break;
151
0
        case OSSL_FUNC_SIGNATURE_DUPCTX:
152
0
            if (signature->dupctx != NULL)
153
0
                break;
154
0
            signature->dupctx = OSSL_get_OP_signature_dupctx(fns);
155
0
            break;
156
0
        case OSSL_FUNC_SIGNATURE_GET_CTX_PARAMS:
157
0
            if (signature->get_ctx_params != NULL)
158
0
                break;
159
0
            signature->get_ctx_params
160
0
                = OSSL_get_OP_signature_get_ctx_params(fns);
161
0
            gparamfncnt++;
162
0
            break;
163
0
        case OSSL_FUNC_SIGNATURE_GETTABLE_CTX_PARAMS:
164
0
            if (signature->gettable_ctx_params != NULL)
165
0
                break;
166
0
            signature->gettable_ctx_params
167
0
                = OSSL_get_OP_signature_gettable_ctx_params(fns);
168
0
            gparamfncnt++;
169
0
            break;
170
0
        case OSSL_FUNC_SIGNATURE_SET_CTX_PARAMS:
171
0
            if (signature->set_ctx_params != NULL)
172
0
                break;
173
0
            signature->set_ctx_params
174
0
                = OSSL_get_OP_signature_set_ctx_params(fns);
175
0
            sparamfncnt++;
176
0
            break;
177
0
        case OSSL_FUNC_SIGNATURE_SETTABLE_CTX_PARAMS:
178
0
            if (signature->settable_ctx_params != NULL)
179
0
                break;
180
0
            signature->settable_ctx_params
181
0
                = OSSL_get_OP_signature_settable_ctx_params(fns);
182
0
            sparamfncnt++;
183
0
            break;
184
0
        case OSSL_FUNC_SIGNATURE_GET_CTX_MD_PARAMS:
185
0
            if (signature->get_ctx_md_params != NULL)
186
0
                break;
187
0
            signature->get_ctx_md_params
188
0
                = OSSL_get_OP_signature_get_ctx_md_params(fns);
189
0
            gmdparamfncnt++;
190
0
            break;
191
0
        case OSSL_FUNC_SIGNATURE_GETTABLE_CTX_MD_PARAMS:
192
0
            if (signature->gettable_ctx_md_params != NULL)
193
0
                break;
194
0
            signature->gettable_ctx_md_params
195
0
                = OSSL_get_OP_signature_gettable_ctx_md_params(fns);
196
0
            gmdparamfncnt++;
197
0
            break;
198
0
        case OSSL_FUNC_SIGNATURE_SET_CTX_MD_PARAMS:
199
0
            if (signature->set_ctx_md_params != NULL)
200
0
                break;
201
0
            signature->set_ctx_md_params
202
0
                = OSSL_get_OP_signature_set_ctx_md_params(fns);
203
0
            smdparamfncnt++;
204
0
            break;
205
0
        case OSSL_FUNC_SIGNATURE_SETTABLE_CTX_MD_PARAMS:
206
0
            if (signature->settable_ctx_md_params != NULL)
207
0
                break;
208
0
            signature->settable_ctx_md_params
209
0
                = OSSL_get_OP_signature_settable_ctx_md_params(fns);
210
0
            smdparamfncnt++;
211
0
            break;
212
0
        }
213
0
    }
214
0
    if (ctxfncnt != 2
215
0
        || (signfncnt == 0
216
0
            && verifyfncnt == 0
217
0
            && verifyrecfncnt == 0
218
0
            && digsignfncnt == 0
219
0
            && digverifyfncnt == 0)
220
0
        || (signfncnt != 0 && signfncnt != 2)
221
0
        || (verifyfncnt != 0 && verifyfncnt != 2)
222
0
        || (verifyrecfncnt != 0 && verifyrecfncnt != 2)
223
0
        || (digsignfncnt != 0 && digsignfncnt != 3)
224
0
        || (digverifyfncnt != 0 && digverifyfncnt != 3)
225
0
        || (gparamfncnt != 0 && gparamfncnt != 2)
226
0
        || (sparamfncnt != 0 && sparamfncnt != 2)
227
0
        || (gmdparamfncnt != 0 && gmdparamfncnt != 2)
228
0
        || (smdparamfncnt != 0 && smdparamfncnt != 2)) {
229
        /*
230
         * In order to be a consistent set of functions we must have at least
231
         * a set of context functions (newctx and freectx) as well as a set of
232
         * "signature" functions:
233
         *  (sign_init, sign) or
234
         *  (verify_init verify) or
235
         *  (verify_recover_init, verify_recover) or
236
         *  (digest_sign_init, digest_sign_update, digest_sign_final) or
237
         *  (digest_verify_init, digest_verify_update, digest_verify_final).
238
         *
239
         * set_ctx_params and settable_ctx_params are optional, but if one of
240
         * them is present then the other one must also be present. The same
241
         * applies to get_ctx_params and gettable_ctx_params. The same rules
242
         * apply to the "md_params" functions. The dupctx function is optional.
243
         */
244
0
        ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS);
245
0
        goto err;
246
0
    }
247
248
0
    return signature;
249
0
 err:
250
0
    EVP_SIGNATURE_free(signature);
251
0
    return NULL;
252
0
}
253
254
void EVP_SIGNATURE_free(EVP_SIGNATURE *signature)
255
0
{
256
0
    if (signature != NULL) {
257
0
        int i;
258
259
0
        CRYPTO_DOWN_REF(&signature->refcnt, &i, signature->lock);
260
0
        if (i > 0)
261
0
            return;
262
0
        ossl_provider_free(signature->prov);
263
0
        CRYPTO_THREAD_lock_free(signature->lock);
264
0
        OPENSSL_free(signature);
265
0
    }
266
0
}
267
268
int EVP_SIGNATURE_up_ref(EVP_SIGNATURE *signature)
269
0
{
270
0
    int ref = 0;
271
272
0
    CRYPTO_UP_REF(&signature->refcnt, &ref, signature->lock);
273
0
    return 1;
274
0
}
275
276
OSSL_PROVIDER *EVP_SIGNATURE_provider(const EVP_SIGNATURE *signature)
277
0
{
278
0
    return signature->prov;
279
0
}
280
281
EVP_SIGNATURE *EVP_SIGNATURE_fetch(OPENSSL_CTX *ctx, const char *algorithm,
282
                                   const char *properties)
283
0
{
284
0
    return evp_generic_fetch(ctx, OSSL_OP_SIGNATURE, algorithm, properties,
285
0
                             evp_signature_from_dispatch,
286
0
                             (int (*)(void *))EVP_SIGNATURE_up_ref,
287
0
                             (void (*)(void *))EVP_SIGNATURE_free);
288
0
}
289
290
int EVP_SIGNATURE_is_a(const EVP_SIGNATURE *signature, const char *name)
291
0
{
292
0
    return evp_is_a(signature->prov, signature->name_id, NULL, name);
293
0
}
294
295
int EVP_SIGNATURE_number(const EVP_SIGNATURE *signature)
296
0
{
297
0
    return signature->name_id;
298
0
}
299
300
void EVP_SIGNATURE_do_all_provided(OPENSSL_CTX *libctx,
301
                                   void (*fn)(EVP_SIGNATURE *signature,
302
                                              void *arg),
303
                                   void *arg)
304
0
{
305
0
    evp_generic_do_all(libctx, OSSL_OP_SIGNATURE,
306
0
                       (void (*)(void *, void *))fn, arg,
307
0
                       evp_signature_from_dispatch,
308
0
                       (void (*)(void *))EVP_SIGNATURE_free);
309
0
}
310
311
312
void EVP_SIGNATURE_names_do_all(const EVP_SIGNATURE *signature,
313
                                void (*fn)(const char *name, void *data),
314
                                void *data)
315
0
{
316
0
    if (signature->prov != NULL)
317
0
        evp_names_do_all(signature->prov, signature->name_id, fn, data);
318
0
}
319
320
static int evp_pkey_signature_init(EVP_PKEY_CTX *ctx, int operation)
321
0
{
322
0
    int ret = 0;
323
0
    void *provkey = NULL;
324
0
    EVP_SIGNATURE *signature = NULL;
325
0
    EVP_KEYMGMT *tmp_keymgmt = NULL;
326
0
    const char *supported_sig = NULL;
327
328
0
    if (ctx == NULL) {
329
0
        EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
330
0
        return -2;
331
0
    }
332
333
0
    evp_pkey_ctx_free_old_ops(ctx);
334
0
    ctx->operation = operation;
335
336
    /*
337
     * TODO when we stop falling back to legacy, this and the ERR_pop_to_mark()
338
     * calls can be removed.
339
     */
340
0
    ERR_set_mark();
341
342
0
    if (ctx->keytype == NULL)
343
0
        goto legacy;
344
345
    /* Ensure that the key is provided.  If not, go legacy */
346
0
    tmp_keymgmt = ctx->keymgmt;
347
0
    provkey = evp_pkey_make_provided(ctx->pkey, ctx->libctx,
348
0
                                     &tmp_keymgmt, ctx->propquery);
349
0
    if (provkey == NULL)
350
0
        goto legacy;
351
0
    if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) {
352
0
        ERR_clear_last_mark();
353
0
        ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
354
0
        goto err;
355
0
    }
356
0
    EVP_KEYMGMT_free(ctx->keymgmt);
357
0
    ctx->keymgmt = tmp_keymgmt;
358
359
0
    if (ctx->keymgmt->query_operation_name != NULL)
360
0
        supported_sig = ctx->keymgmt->query_operation_name(OSSL_OP_SIGNATURE);
361
362
    /*
363
     * If we didn't get a supported sig, assume there is one with the
364
     * same name as the key type.
365
     */
366
0
    if (supported_sig == NULL)
367
0
        supported_sig = ctx->keytype;
368
369
    /*
370
     * Because we cleared out old ops, we shouldn't need to worry about
371
     * checking if signature is already there.
372
     */
373
0
    signature =
374
0
        EVP_SIGNATURE_fetch(ctx->libctx, supported_sig, ctx->propquery);
375
376
0
    if (signature == NULL
377
0
        || (EVP_KEYMGMT_provider(ctx->keymgmt)
378
0
            != EVP_SIGNATURE_provider(signature))) {
379
        /*
380
         * We don't need to free ctx->keymgmt here, as it's not necessarily
381
         * tied to this operation.  It will be freed by EVP_PKEY_CTX_free().
382
         */
383
0
        EVP_SIGNATURE_free(signature);
384
0
        goto legacy;
385
0
    }
386
387
    /*
388
     * TODO remove this when legacy is gone
389
     * If we don't have the full support we need with provided methods,
390
     * let's go see if legacy does.
391
     */
392
0
    ERR_pop_to_mark();
393
394
    /* No more legacy from here down to legacy: */
395
396
0
    ctx->op.sig.signature = signature;
397
0
    ctx->op.sig.sigprovctx = signature->newctx(ossl_provider_ctx(signature->prov));
398
0
    if (ctx->op.sig.sigprovctx == NULL) {
399
        /* The provider key can stay in the cache */
400
0
        EVPerr(0, EVP_R_INITIALIZATION_ERROR);
401
0
        goto err;
402
0
    }
403
404
0
    switch (operation) {
405
0
    case EVP_PKEY_OP_SIGN:
406
0
        if (signature->sign_init == NULL) {
407
0
            EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
408
0
            ret = -2;
409
0
            goto err;
410
0
        }
411
0
        ret = signature->sign_init(ctx->op.sig.sigprovctx, provkey);
412
0
        break;
413
0
    case EVP_PKEY_OP_VERIFY:
414
0
        if (signature->verify_init == NULL) {
415
0
            EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
416
0
            ret = -2;
417
0
            goto err;
418
0
        }
419
0
        ret = signature->verify_init(ctx->op.sig.sigprovctx, provkey);
420
0
        break;
421
0
    case EVP_PKEY_OP_VERIFYRECOVER:
422
0
        if (signature->verify_recover_init == NULL) {
423
0
            EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
424
0
            ret = -2;
425
0
            goto err;
426
0
        }
427
0
        ret = signature->verify_recover_init(ctx->op.sig.sigprovctx, provkey);
428
0
        break;
429
0
    default:
430
0
        EVPerr(0, EVP_R_INITIALIZATION_ERROR);
431
0
        goto err;
432
0
    }
433
434
0
    if (ret <= 0) {
435
0
        signature->freectx(ctx->op.sig.sigprovctx);
436
0
        ctx->op.sig.sigprovctx = NULL;
437
0
        goto err;
438
0
    }
439
0
    return 1;
440
441
0
 legacy:
442
    /*
443
     * TODO remove this when legacy is gone
444
     * If we don't have the full support we need with provided methods,
445
     * let's go see if legacy does.
446
     */
447
0
    ERR_pop_to_mark();
448
449
0
    if (ctx->pmeth == NULL
450
0
            || (operation == EVP_PKEY_OP_SIGN && ctx->pmeth->sign == NULL)
451
0
            || (operation == EVP_PKEY_OP_VERIFY && ctx->pmeth->verify == NULL)
452
0
            || (operation == EVP_PKEY_OP_VERIFYRECOVER
453
0
                && ctx->pmeth->verify_recover == NULL)) {
454
0
        EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
455
0
        return -2;
456
0
    }
457
458
0
    switch (operation) {
459
0
    case EVP_PKEY_OP_SIGN:
460
0
        if (ctx->pmeth->sign_init == NULL)
461
0
            return 1;
462
0
        ret = ctx->pmeth->sign_init(ctx);
463
0
        break;
464
0
    case EVP_PKEY_OP_VERIFY:
465
0
        if (ctx->pmeth->verify_init == NULL)
466
0
            return 1;
467
0
        ret = ctx->pmeth->verify_init(ctx);
468
0
        break;
469
0
    case EVP_PKEY_OP_VERIFYRECOVER:
470
0
        if (ctx->pmeth->verify_recover_init == NULL)
471
0
            return 1;
472
0
        ret = ctx->pmeth->verify_recover_init(ctx);
473
0
        break;
474
0
    default:
475
0
        EVPerr(0, EVP_R_INITIALIZATION_ERROR);
476
0
        goto err;
477
0
    }
478
0
    if (ret <= 0)
479
0
        goto err;
480
0
    return ret;
481
482
0
 err:
483
0
    ctx->operation = EVP_PKEY_OP_UNDEFINED;
484
0
    return ret;
485
0
}
486
487
int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx)
488
0
{
489
0
    return evp_pkey_signature_init(ctx, EVP_PKEY_OP_SIGN);
490
0
}
491
492
int EVP_PKEY_sign(EVP_PKEY_CTX *ctx,
493
                  unsigned char *sig, size_t *siglen,
494
                  const unsigned char *tbs, size_t tbslen)
495
0
{
496
0
    int ret;
497
498
0
    if (ctx == NULL) {
499
0
        EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
500
0
        return -2;
501
0
    }
502
503
0
    if (ctx->operation != EVP_PKEY_OP_SIGN) {
504
0
        EVPerr(0, EVP_R_OPERATON_NOT_INITIALIZED);
505
0
        return -1;
506
0
    }
507
508
0
    if (ctx->op.sig.sigprovctx == NULL)
509
0
        goto legacy;
510
511
0
    ret = ctx->op.sig.signature->sign(ctx->op.sig.sigprovctx, sig, siglen,
512
0
                                      SIZE_MAX, tbs, tbslen);
513
514
0
    return ret;
515
0
 legacy:
516
517
0
    if (ctx->pmeth == NULL || ctx->pmeth->sign == NULL) {
518
0
        EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
519
0
        return -2;
520
0
    }
521
522
0
    M_check_autoarg(ctx, sig, siglen, EVP_F_EVP_PKEY_SIGN)
523
0
        return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen);
524
0
}
525
526
int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx)
527
0
{
528
0
    return evp_pkey_signature_init(ctx, EVP_PKEY_OP_VERIFY);
529
0
}
530
531
int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
532
                    const unsigned char *sig, size_t siglen,
533
                    const unsigned char *tbs, size_t tbslen)
534
0
{
535
0
    int ret;
536
537
0
    if (ctx == NULL) {
538
0
        EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
539
0
        return -2;
540
0
    }
541
542
0
    if (ctx->operation != EVP_PKEY_OP_VERIFY) {
543
0
        EVPerr(0, EVP_R_OPERATON_NOT_INITIALIZED);
544
0
        return -1;
545
0
    }
546
547
0
    if (ctx->op.sig.sigprovctx == NULL)
548
0
        goto legacy;
549
550
0
    ret = ctx->op.sig.signature->verify(ctx->op.sig.sigprovctx, sig, siglen,
551
0
                                        tbs, tbslen);
552
553
0
    return ret;
554
0
 legacy:
555
0
    if (ctx->pmeth == NULL || ctx->pmeth->verify == NULL) {
556
0
        EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
557
0
        return -2;
558
0
    }
559
560
0
    return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen);
561
0
}
562
563
int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx)
564
0
{
565
0
    return evp_pkey_signature_init(ctx, EVP_PKEY_OP_VERIFYRECOVER);
566
0
}
567
568
int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
569
                            unsigned char *rout, size_t *routlen,
570
                            const unsigned char *sig, size_t siglen)
571
0
{
572
0
    int ret;
573
574
0
    if (ctx == NULL) {
575
0
        EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
576
0
        return -2;
577
0
    }
578
579
0
    if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) {
580
0
        EVPerr(0, EVP_R_OPERATON_NOT_INITIALIZED);
581
0
        return -1;
582
0
    }
583
584
0
    if (ctx->op.sig.sigprovctx == NULL)
585
0
        goto legacy;
586
587
0
    ret = ctx->op.sig.signature->verify_recover(ctx->op.sig.sigprovctx, rout,
588
0
                                                routlen,
589
0
                                                (rout == NULL ? 0 : *routlen),
590
0
                                                sig, siglen);
591
0
    return ret;
592
0
 legacy:
593
0
    if (ctx->pmeth == NULL || ctx->pmeth->verify_recover == NULL) {
594
0
        EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
595
0
        return -2;
596
0
    }
597
0
    M_check_autoarg(ctx, rout, routlen, EVP_F_EVP_PKEY_VERIFY_RECOVER)
598
0
        return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);
599
0
}