2 * Copyright 2006-2024 The OpenSSL Project Authors. All Rights Reserved.
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
12 #include <openssl/objects.h>
13 #include <openssl/evp.h>
14 #include "internal/numbers.h" /* includes SIZE_MAX */
15 #include "internal/cryptlib.h"
16 #include "internal/provider.h"
17 #include "internal/core.h"
18 #include "crypto/evp.h"
19 #include "evp_local.h"
21 static EVP_SIGNATURE *evp_signature_new(OSSL_PROVIDER *prov)
23 EVP_SIGNATURE *signature = OPENSSL_zalloc(sizeof(EVP_SIGNATURE));
25 if (signature == NULL)
28 if (!CRYPTO_NEW_REF(&signature->refcnt, 1)) {
29 OPENSSL_free(signature);
33 signature->prov = prov;
34 ossl_provider_up_ref(prov);
39 static void *evp_signature_from_algorithm(int name_id,
40 const OSSL_ALGORITHM *algodef,
43 const OSSL_DISPATCH *fns = algodef->implementation;
44 EVP_SIGNATURE *signature = NULL;
45 int ctxfncnt = 0, signfncnt = 0, verifyfncnt = 0, verifyrecfncnt = 0;
46 int digsignfncnt = 0, digverifyfncnt = 0;
47 int gparamfncnt = 0, sparamfncnt = 0, gmdparamfncnt = 0, smdparamfncnt = 0;
49 if ((signature = evp_signature_new(prov)) == NULL) {
50 ERR_raise(ERR_LIB_EVP, ERR_R_EVP_LIB);
54 signature->name_id = name_id;
55 if ((signature->type_name = ossl_algorithm_get1_first_name(algodef)) == NULL)
57 signature->description = algodef->algorithm_description;
59 for (; fns->function_id != 0; fns++) {
60 switch (fns->function_id) {
61 case OSSL_FUNC_SIGNATURE_NEWCTX:
62 if (signature->newctx != NULL)
64 signature->newctx = OSSL_FUNC_signature_newctx(fns);
67 case OSSL_FUNC_SIGNATURE_SIGN_INIT:
68 if (signature->sign_init != NULL)
70 signature->sign_init = OSSL_FUNC_signature_sign_init(fns);
73 case OSSL_FUNC_SIGNATURE_SIGN:
74 if (signature->sign != NULL)
76 signature->sign = OSSL_FUNC_signature_sign(fns);
79 case OSSL_FUNC_SIGNATURE_VERIFY_INIT:
80 if (signature->verify_init != NULL)
82 signature->verify_init = OSSL_FUNC_signature_verify_init(fns);
85 case OSSL_FUNC_SIGNATURE_VERIFY:
86 if (signature->verify != NULL)
88 signature->verify = OSSL_FUNC_signature_verify(fns);
91 case OSSL_FUNC_SIGNATURE_VERIFY_RECOVER_INIT:
92 if (signature->verify_recover_init != NULL)
94 signature->verify_recover_init
95 = OSSL_FUNC_signature_verify_recover_init(fns);
98 case OSSL_FUNC_SIGNATURE_VERIFY_RECOVER:
99 if (signature->verify_recover != NULL)
101 signature->verify_recover
102 = OSSL_FUNC_signature_verify_recover(fns);
105 case OSSL_FUNC_SIGNATURE_DIGEST_SIGN_INIT:
106 if (signature->digest_sign_init != NULL)
108 signature->digest_sign_init
109 = OSSL_FUNC_signature_digest_sign_init(fns);
111 case OSSL_FUNC_SIGNATURE_DIGEST_SIGN_UPDATE:
112 if (signature->digest_sign_update != NULL)
114 signature->digest_sign_update
115 = OSSL_FUNC_signature_digest_sign_update(fns);
118 case OSSL_FUNC_SIGNATURE_DIGEST_SIGN_FINAL:
119 if (signature->digest_sign_final != NULL)
121 signature->digest_sign_final
122 = OSSL_FUNC_signature_digest_sign_final(fns);
125 case OSSL_FUNC_SIGNATURE_DIGEST_SIGN:
126 if (signature->digest_sign != NULL)
128 signature->digest_sign
129 = OSSL_FUNC_signature_digest_sign(fns);
131 case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_INIT:
132 if (signature->digest_verify_init != NULL)
134 signature->digest_verify_init
135 = OSSL_FUNC_signature_digest_verify_init(fns);
137 case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_UPDATE:
138 if (signature->digest_verify_update != NULL)
140 signature->digest_verify_update
141 = OSSL_FUNC_signature_digest_verify_update(fns);
144 case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_FINAL:
145 if (signature->digest_verify_final != NULL)
147 signature->digest_verify_final
148 = OSSL_FUNC_signature_digest_verify_final(fns);
151 case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY:
152 if (signature->digest_verify != NULL)
154 signature->digest_verify
155 = OSSL_FUNC_signature_digest_verify(fns);
157 case OSSL_FUNC_SIGNATURE_FREECTX:
158 if (signature->freectx != NULL)
160 signature->freectx = OSSL_FUNC_signature_freectx(fns);
163 case OSSL_FUNC_SIGNATURE_DUPCTX:
164 if (signature->dupctx != NULL)
166 signature->dupctx = OSSL_FUNC_signature_dupctx(fns);
168 case OSSL_FUNC_SIGNATURE_GET_CTX_PARAMS:
169 if (signature->get_ctx_params != NULL)
171 signature->get_ctx_params
172 = OSSL_FUNC_signature_get_ctx_params(fns);
175 case OSSL_FUNC_SIGNATURE_GETTABLE_CTX_PARAMS:
176 if (signature->gettable_ctx_params != NULL)
178 signature->gettable_ctx_params
179 = OSSL_FUNC_signature_gettable_ctx_params(fns);
182 case OSSL_FUNC_SIGNATURE_SET_CTX_PARAMS:
183 if (signature->set_ctx_params != NULL)
185 signature->set_ctx_params
186 = OSSL_FUNC_signature_set_ctx_params(fns);
189 case OSSL_FUNC_SIGNATURE_SETTABLE_CTX_PARAMS:
190 if (signature->settable_ctx_params != NULL)
192 signature->settable_ctx_params
193 = OSSL_FUNC_signature_settable_ctx_params(fns);
196 case OSSL_FUNC_SIGNATURE_GET_CTX_MD_PARAMS:
197 if (signature->get_ctx_md_params != NULL)
199 signature->get_ctx_md_params
200 = OSSL_FUNC_signature_get_ctx_md_params(fns);
203 case OSSL_FUNC_SIGNATURE_GETTABLE_CTX_MD_PARAMS:
204 if (signature->gettable_ctx_md_params != NULL)
206 signature->gettable_ctx_md_params
207 = OSSL_FUNC_signature_gettable_ctx_md_params(fns);
210 case OSSL_FUNC_SIGNATURE_SET_CTX_MD_PARAMS:
211 if (signature->set_ctx_md_params != NULL)
213 signature->set_ctx_md_params
214 = OSSL_FUNC_signature_set_ctx_md_params(fns);
217 case OSSL_FUNC_SIGNATURE_SETTABLE_CTX_MD_PARAMS:
218 if (signature->settable_ctx_md_params != NULL)
220 signature->settable_ctx_md_params
221 = OSSL_FUNC_signature_settable_ctx_md_params(fns);
229 && verifyrecfncnt == 0
231 && digverifyfncnt == 0
232 && signature->digest_sign == NULL
233 && signature->digest_verify == NULL)
234 || (signfncnt != 0 && signfncnt != 2)
235 || (verifyfncnt != 0 && verifyfncnt != 2)
236 || (verifyrecfncnt != 0 && verifyrecfncnt != 2)
237 || (digsignfncnt != 0 && digsignfncnt != 2)
238 || (digsignfncnt == 2 && signature->digest_sign_init == NULL)
239 || (digverifyfncnt != 0 && digverifyfncnt != 2)
240 || (digverifyfncnt == 2 && signature->digest_verify_init == NULL)
241 || (signature->digest_sign != NULL
242 && signature->digest_sign_init == NULL)
243 || (signature->digest_verify != NULL
244 && signature->digest_verify_init == NULL)
245 || (gparamfncnt != 0 && gparamfncnt != 2)
246 || (sparamfncnt != 0 && sparamfncnt != 2)
247 || (gmdparamfncnt != 0 && gmdparamfncnt != 2)
248 || (smdparamfncnt != 0 && smdparamfncnt != 2)) {
250 * In order to be a consistent set of functions we must have at least
251 * a set of context functions (newctx and freectx) as well as a set of
252 * "signature" functions:
253 * (sign_init, sign) or
254 * (verify_init verify) or
255 * (verify_recover_init, verify_recover) or
256 * (digest_sign_init, digest_sign_update, digest_sign_final) or
257 * (digest_verify_init, digest_verify_update, digest_verify_final) or
258 * (digest_sign_init, digest_sign) or
259 * (digest_verify_init, digest_verify).
261 * set_ctx_params and settable_ctx_params are optional, but if one of
262 * them is present then the other one must also be present. The same
263 * applies to get_ctx_params and gettable_ctx_params. The same rules
264 * apply to the "md_params" functions. The dupctx function is optional.
266 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS);
272 EVP_SIGNATURE_free(signature);
276 void EVP_SIGNATURE_free(EVP_SIGNATURE *signature)
280 if (signature == NULL)
282 CRYPTO_DOWN_REF(&signature->refcnt, &i);
285 OPENSSL_free(signature->type_name);
286 ossl_provider_free(signature->prov);
287 CRYPTO_FREE_REF(&signature->refcnt);
288 OPENSSL_free(signature);
291 int EVP_SIGNATURE_up_ref(EVP_SIGNATURE *signature)
295 CRYPTO_UP_REF(&signature->refcnt, &ref);
299 OSSL_PROVIDER *EVP_SIGNATURE_get0_provider(const EVP_SIGNATURE *signature)
301 return signature->prov;
304 EVP_SIGNATURE *EVP_SIGNATURE_fetch(OSSL_LIB_CTX *ctx, const char *algorithm,
305 const char *properties)
307 return evp_generic_fetch(ctx, OSSL_OP_SIGNATURE, algorithm, properties,
308 evp_signature_from_algorithm,
309 (int (*)(void *))EVP_SIGNATURE_up_ref,
310 (void (*)(void *))EVP_SIGNATURE_free);
313 EVP_SIGNATURE *evp_signature_fetch_from_prov(OSSL_PROVIDER *prov,
314 const char *algorithm,
315 const char *properties)
317 return evp_generic_fetch_from_prov(prov, OSSL_OP_SIGNATURE,
318 algorithm, properties,
319 evp_signature_from_algorithm,
320 (int (*)(void *))EVP_SIGNATURE_up_ref,
321 (void (*)(void *))EVP_SIGNATURE_free);
324 int EVP_SIGNATURE_is_a(const EVP_SIGNATURE *signature, const char *name)
326 return signature != NULL
327 && evp_is_a(signature->prov, signature->name_id, NULL, name);
330 int evp_signature_get_number(const EVP_SIGNATURE *signature)
332 return signature->name_id;
335 const char *EVP_SIGNATURE_get0_name(const EVP_SIGNATURE *signature)
337 return signature->type_name;
340 const char *EVP_SIGNATURE_get0_description(const EVP_SIGNATURE *signature)
342 return signature->description;
345 void EVP_SIGNATURE_do_all_provided(OSSL_LIB_CTX *libctx,
346 void (*fn)(EVP_SIGNATURE *signature,
350 evp_generic_do_all(libctx, OSSL_OP_SIGNATURE,
351 (void (*)(void *, void *))fn, arg,
352 evp_signature_from_algorithm,
353 (int (*)(void *))EVP_SIGNATURE_up_ref,
354 (void (*)(void *))EVP_SIGNATURE_free);
358 int EVP_SIGNATURE_names_do_all(const EVP_SIGNATURE *signature,
359 void (*fn)(const char *name, void *data),
362 if (signature->prov != NULL)
363 return evp_names_do_all(signature->prov, signature->name_id, fn, data);
368 const OSSL_PARAM *EVP_SIGNATURE_gettable_ctx_params(const EVP_SIGNATURE *sig)
372 if (sig == NULL || sig->gettable_ctx_params == NULL)
375 provctx = ossl_provider_ctx(EVP_SIGNATURE_get0_provider(sig));
376 return sig->gettable_ctx_params(NULL, provctx);
379 const OSSL_PARAM *EVP_SIGNATURE_settable_ctx_params(const EVP_SIGNATURE *sig)
383 if (sig == NULL || sig->settable_ctx_params == NULL)
386 provctx = ossl_provider_ctx(EVP_SIGNATURE_get0_provider(sig));
387 return sig->settable_ctx_params(NULL, provctx);
390 static int evp_pkey_signature_init(EVP_PKEY_CTX *ctx, int operation,
391 const OSSL_PARAM params[])
394 void *provkey = NULL;
395 EVP_SIGNATURE *signature = NULL;
396 EVP_KEYMGMT *tmp_keymgmt = NULL;
397 const OSSL_PROVIDER *tmp_prov = NULL;
398 const char *supported_sig = NULL;
402 ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_NULL_PARAMETER);
406 evp_pkey_ctx_free_old_ops(ctx);
407 ctx->operation = operation;
411 if (evp_pkey_ctx_is_legacy(ctx))
414 if (ctx->pkey == NULL) {
415 ERR_clear_last_mark();
416 ERR_raise(ERR_LIB_EVP, EVP_R_NO_KEY_SET);
421 * Try to derive the supported signature from |ctx->keymgmt|.
423 if (!ossl_assert(ctx->pkey->keymgmt == NULL
424 || ctx->pkey->keymgmt == ctx->keymgmt)) {
425 ERR_clear_last_mark();
426 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
429 supported_sig = evp_keymgmt_util_query_operation_name(ctx->keymgmt,
431 if (supported_sig == NULL) {
432 ERR_clear_last_mark();
433 ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
438 * We perform two iterations:
440 * 1. Do the normal signature fetch, using the fetching data given by
442 * 2. Do the provider specific signature fetch, from the same provider
445 * We then try to fetch the keymgmt from the same provider as the
446 * signature, and try to export |ctx->pkey| to that keymgmt (when
447 * this keymgmt happens to be the same as |ctx->keymgmt|, the export
448 * is a no-op, but we call it anyway to not complicate the code even
450 * If the export call succeeds (returns a non-NULL provider key pointer),
451 * we're done and can perform the operation itself. If not, we perform
452 * the second iteration, or jump to legacy.
454 for (iter = 1; iter < 3 && provkey == NULL; iter++) {
455 EVP_KEYMGMT *tmp_keymgmt_tofree = NULL;
458 * If we're on the second iteration, free the results from the first.
459 * They are NULL on the first iteration, so no need to check what
460 * iteration we're on.
462 EVP_SIGNATURE_free(signature);
463 EVP_KEYMGMT_free(tmp_keymgmt);
468 EVP_SIGNATURE_fetch(ctx->libctx, supported_sig, ctx->propquery);
469 if (signature != NULL)
470 tmp_prov = EVP_SIGNATURE_get0_provider(signature);
473 tmp_prov = EVP_KEYMGMT_get0_provider(ctx->keymgmt);
475 evp_signature_fetch_from_prov((OSSL_PROVIDER *)tmp_prov,
476 supported_sig, ctx->propquery);
477 if (signature == NULL)
481 if (signature == NULL)
485 * Ensure that the key is provided, either natively, or as a cached
486 * export. We start by fetching the keymgmt with the same name as
487 * |ctx->pkey|, but from the provider of the signature method, using
488 * the same property query as when fetching the signature method.
489 * With the keymgmt we found (if we did), we try to export |ctx->pkey|
490 * to it (evp_pkey_export_to_provider() is smart enough to only actually
492 * export it if |tmp_keymgmt| is different from |ctx->pkey|'s keymgmt)
494 tmp_keymgmt_tofree = tmp_keymgmt =
495 evp_keymgmt_fetch_from_prov((OSSL_PROVIDER *)tmp_prov,
496 EVP_KEYMGMT_get0_name(ctx->keymgmt),
498 if (tmp_keymgmt != NULL)
499 provkey = evp_pkey_export_to_provider(ctx->pkey, ctx->libctx,
500 &tmp_keymgmt, ctx->propquery);
501 if (tmp_keymgmt == NULL)
502 EVP_KEYMGMT_free(tmp_keymgmt_tofree);
505 if (provkey == NULL) {
506 EVP_SIGNATURE_free(signature);
512 /* No more legacy from here down to legacy: */
514 ctx->op.sig.signature = signature;
516 signature->newctx(ossl_provider_ctx(signature->prov), ctx->propquery);
517 if (ctx->op.sig.algctx == NULL) {
518 /* The provider key can stay in the cache */
519 ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
524 case EVP_PKEY_OP_SIGN:
525 if (signature->sign_init == NULL) {
526 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
530 ret = signature->sign_init(ctx->op.sig.algctx, provkey, params);
532 case EVP_PKEY_OP_VERIFY:
533 if (signature->verify_init == NULL) {
534 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
538 ret = signature->verify_init(ctx->op.sig.algctx, provkey, params);
540 case EVP_PKEY_OP_VERIFYRECOVER:
541 if (signature->verify_recover_init == NULL) {
542 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
546 ret = signature->verify_recover_init(ctx->op.sig.algctx, provkey,
550 ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
555 signature->freectx(ctx->op.sig.algctx);
556 ctx->op.sig.algctx = NULL;
563 * If we don't have the full support we need with provided methods,
564 * let's go see if legacy does.
567 EVP_KEYMGMT_free(tmp_keymgmt);
570 if (ctx->pmeth == NULL
571 || (operation == EVP_PKEY_OP_SIGN && ctx->pmeth->sign == NULL)
572 || (operation == EVP_PKEY_OP_VERIFY && ctx->pmeth->verify == NULL)
573 || (operation == EVP_PKEY_OP_VERIFYRECOVER
574 && ctx->pmeth->verify_recover == NULL)) {
575 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
580 case EVP_PKEY_OP_SIGN:
581 if (ctx->pmeth->sign_init == NULL)
583 ret = ctx->pmeth->sign_init(ctx);
585 case EVP_PKEY_OP_VERIFY:
586 if (ctx->pmeth->verify_init == NULL)
588 ret = ctx->pmeth->verify_init(ctx);
590 case EVP_PKEY_OP_VERIFYRECOVER:
591 if (ctx->pmeth->verify_recover_init == NULL)
593 ret = ctx->pmeth->verify_recover_init(ctx);
596 ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
604 ret = evp_pkey_ctx_use_cached_data(ctx);
607 EVP_KEYMGMT_free(tmp_keymgmt);
610 evp_pkey_ctx_free_old_ops(ctx);
611 ctx->operation = EVP_PKEY_OP_UNDEFINED;
612 EVP_KEYMGMT_free(tmp_keymgmt);
616 int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx)
618 return evp_pkey_signature_init(ctx, EVP_PKEY_OP_SIGN, NULL);
621 int EVP_PKEY_sign_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[])
623 return evp_pkey_signature_init(ctx, EVP_PKEY_OP_SIGN, params);
626 int EVP_PKEY_sign(EVP_PKEY_CTX *ctx,
627 unsigned char *sig, size_t *siglen,
628 const unsigned char *tbs, size_t tbslen)
633 ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_NULL_PARAMETER);
637 if (ctx->operation != EVP_PKEY_OP_SIGN) {
638 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_INITIALIZED);
642 if (ctx->op.sig.algctx == NULL)
645 if (ctx->op.sig.signature->sign == NULL) {
646 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
650 ret = ctx->op.sig.signature->sign(ctx->op.sig.algctx, sig, siglen,
651 (sig == NULL) ? 0 : *siglen, tbs, tbslen);
656 if (ctx->pmeth == NULL || ctx->pmeth->sign == NULL) {
657 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
661 M_check_autoarg(ctx, sig, siglen, EVP_F_EVP_PKEY_SIGN)
662 return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen);
665 int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx)
667 return evp_pkey_signature_init(ctx, EVP_PKEY_OP_VERIFY, NULL);
670 int EVP_PKEY_verify_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[])
672 return evp_pkey_signature_init(ctx, EVP_PKEY_OP_VERIFY, params);
675 int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
676 const unsigned char *sig, size_t siglen,
677 const unsigned char *tbs, size_t tbslen)
682 ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_NULL_PARAMETER);
686 if (ctx->operation != EVP_PKEY_OP_VERIFY) {
687 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_INITIALIZED);
691 if (ctx->op.sig.algctx == NULL)
694 if (ctx->op.sig.signature->verify == NULL) {
695 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
699 ret = ctx->op.sig.signature->verify(ctx->op.sig.algctx, sig, siglen,
704 if (ctx->pmeth == NULL || ctx->pmeth->verify == NULL) {
705 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
709 return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen);
712 int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx)
714 return evp_pkey_signature_init(ctx, EVP_PKEY_OP_VERIFYRECOVER, NULL);
717 int EVP_PKEY_verify_recover_init_ex(EVP_PKEY_CTX *ctx,
718 const OSSL_PARAM params[])
720 return evp_pkey_signature_init(ctx, EVP_PKEY_OP_VERIFYRECOVER, params);
723 int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
724 unsigned char *rout, size_t *routlen,
725 const unsigned char *sig, size_t siglen)
730 ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_NULL_PARAMETER);
734 if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) {
735 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_INITIALIZED);
739 if (ctx->op.sig.algctx == NULL)
742 if (ctx->op.sig.signature->verify_recover == NULL) {
743 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
747 ret = ctx->op.sig.signature->verify_recover(ctx->op.sig.algctx, rout,
749 (rout == NULL ? 0 : *routlen),
753 if (ctx->pmeth == NULL || ctx->pmeth->verify_recover == NULL) {
754 ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
757 M_check_autoarg(ctx, rout, routlen, EVP_F_EVP_PKEY_VERIFY_RECOVER)
758 return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);