| /* |
| * Copyright 2006-2021 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 |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <openssl/objects.h> |
| #include <openssl/evp.h> |
| #include "internal/numbers.h" /* includes SIZE_MAX */ |
| #include "internal/cryptlib.h" |
| #include "internal/provider.h" |
| #include "internal/core.h" |
| #include "crypto/evp.h" |
| #include "evp_local.h" |
| |
| static EVP_SIGNATURE *evp_signature_new(OSSL_PROVIDER *prov) |
| { |
| EVP_SIGNATURE *signature = OPENSSL_zalloc(sizeof(EVP_SIGNATURE)); |
| |
| if (signature == NULL) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| |
| signature->lock = CRYPTO_THREAD_lock_new(); |
| if (signature->lock == NULL) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
| OPENSSL_free(signature); |
| return NULL; |
| } |
| signature->prov = prov; |
| ossl_provider_up_ref(prov); |
| signature->refcnt = 1; |
| |
| return signature; |
| } |
| |
| static void *evp_signature_from_algorithm(int name_id, |
| const OSSL_ALGORITHM *algodef, |
| OSSL_PROVIDER *prov) |
| { |
| const OSSL_DISPATCH *fns = algodef->implementation; |
| EVP_SIGNATURE *signature = NULL; |
| int ctxfncnt = 0, signfncnt = 0, verifyfncnt = 0, verifyrecfncnt = 0; |
| int digsignfncnt = 0, digverifyfncnt = 0; |
| int gparamfncnt = 0, sparamfncnt = 0, gmdparamfncnt = 0, smdparamfncnt = 0; |
| |
| if ((signature = evp_signature_new(prov)) == NULL) { |
| ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
| goto err; |
| } |
| |
| signature->name_id = name_id; |
| if ((signature->type_name = ossl_algorithm_get1_first_name(algodef)) == NULL) |
| goto err; |
| signature->description = algodef->algorithm_description; |
| |
| for (; fns->function_id != 0; fns++) { |
| switch (fns->function_id) { |
| case OSSL_FUNC_SIGNATURE_NEWCTX: |
| if (signature->newctx != NULL) |
| break; |
| signature->newctx = OSSL_FUNC_signature_newctx(fns); |
| ctxfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_SIGN_INIT: |
| if (signature->sign_init != NULL) |
| break; |
| signature->sign_init = OSSL_FUNC_signature_sign_init(fns); |
| signfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_SIGN: |
| if (signature->sign != NULL) |
| break; |
| signature->sign = OSSL_FUNC_signature_sign(fns); |
| signfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_VERIFY_INIT: |
| if (signature->verify_init != NULL) |
| break; |
| signature->verify_init = OSSL_FUNC_signature_verify_init(fns); |
| verifyfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_VERIFY: |
| if (signature->verify != NULL) |
| break; |
| signature->verify = OSSL_FUNC_signature_verify(fns); |
| verifyfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_VERIFY_RECOVER_INIT: |
| if (signature->verify_recover_init != NULL) |
| break; |
| signature->verify_recover_init |
| = OSSL_FUNC_signature_verify_recover_init(fns); |
| verifyrecfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_VERIFY_RECOVER: |
| if (signature->verify_recover != NULL) |
| break; |
| signature->verify_recover |
| = OSSL_FUNC_signature_verify_recover(fns); |
| verifyrecfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_DIGEST_SIGN_INIT: |
| if (signature->digest_sign_init != NULL) |
| break; |
| signature->digest_sign_init |
| = OSSL_FUNC_signature_digest_sign_init(fns); |
| break; |
| case OSSL_FUNC_SIGNATURE_DIGEST_SIGN_UPDATE: |
| if (signature->digest_sign_update != NULL) |
| break; |
| signature->digest_sign_update |
| = OSSL_FUNC_signature_digest_sign_update(fns); |
| digsignfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_DIGEST_SIGN_FINAL: |
| if (signature->digest_sign_final != NULL) |
| break; |
| signature->digest_sign_final |
| = OSSL_FUNC_signature_digest_sign_final(fns); |
| digsignfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_DIGEST_SIGN: |
| if (signature->digest_sign != NULL) |
| break; |
| signature->digest_sign |
| = OSSL_FUNC_signature_digest_sign(fns); |
| break; |
| case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_INIT: |
| if (signature->digest_verify_init != NULL) |
| break; |
| signature->digest_verify_init |
| = OSSL_FUNC_signature_digest_verify_init(fns); |
| break; |
| case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_UPDATE: |
| if (signature->digest_verify_update != NULL) |
| break; |
| signature->digest_verify_update |
| = OSSL_FUNC_signature_digest_verify_update(fns); |
| digverifyfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_FINAL: |
| if (signature->digest_verify_final != NULL) |
| break; |
| signature->digest_verify_final |
| = OSSL_FUNC_signature_digest_verify_final(fns); |
| digverifyfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_DIGEST_VERIFY: |
| if (signature->digest_verify != NULL) |
| break; |
| signature->digest_verify |
| = OSSL_FUNC_signature_digest_verify(fns); |
| break; |
| case OSSL_FUNC_SIGNATURE_FREECTX: |
| if (signature->freectx != NULL) |
| break; |
| signature->freectx = OSSL_FUNC_signature_freectx(fns); |
| ctxfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_DUPCTX: |
| if (signature->dupctx != NULL) |
| break; |
| signature->dupctx = OSSL_FUNC_signature_dupctx(fns); |
| break; |
| case OSSL_FUNC_SIGNATURE_GET_CTX_PARAMS: |
| if (signature->get_ctx_params != NULL) |
| break; |
| signature->get_ctx_params |
| = OSSL_FUNC_signature_get_ctx_params(fns); |
| gparamfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_GETTABLE_CTX_PARAMS: |
| if (signature->gettable_ctx_params != NULL) |
| break; |
| signature->gettable_ctx_params |
| = OSSL_FUNC_signature_gettable_ctx_params(fns); |
| gparamfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_SET_CTX_PARAMS: |
| if (signature->set_ctx_params != NULL) |
| break; |
| signature->set_ctx_params |
| = OSSL_FUNC_signature_set_ctx_params(fns); |
| sparamfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_SETTABLE_CTX_PARAMS: |
| if (signature->settable_ctx_params != NULL) |
| break; |
| signature->settable_ctx_params |
| = OSSL_FUNC_signature_settable_ctx_params(fns); |
| sparamfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_GET_CTX_MD_PARAMS: |
| if (signature->get_ctx_md_params != NULL) |
| break; |
| signature->get_ctx_md_params |
| = OSSL_FUNC_signature_get_ctx_md_params(fns); |
| gmdparamfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_GETTABLE_CTX_MD_PARAMS: |
| if (signature->gettable_ctx_md_params != NULL) |
| break; |
| signature->gettable_ctx_md_params |
| = OSSL_FUNC_signature_gettable_ctx_md_params(fns); |
| gmdparamfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_SET_CTX_MD_PARAMS: |
| if (signature->set_ctx_md_params != NULL) |
| break; |
| signature->set_ctx_md_params |
| = OSSL_FUNC_signature_set_ctx_md_params(fns); |
| smdparamfncnt++; |
| break; |
| case OSSL_FUNC_SIGNATURE_SETTABLE_CTX_MD_PARAMS: |
| if (signature->settable_ctx_md_params != NULL) |
| break; |
| signature->settable_ctx_md_params |
| = OSSL_FUNC_signature_settable_ctx_md_params(fns); |
| smdparamfncnt++; |
| break; |
| } |
| } |
| if (ctxfncnt != 2 |
| || (signfncnt == 0 |
| && verifyfncnt == 0 |
| && verifyrecfncnt == 0 |
| && digsignfncnt == 0 |
| && digverifyfncnt == 0 |
| && signature->digest_sign == NULL |
| && signature->digest_verify == NULL) |
| || (signfncnt != 0 && signfncnt != 2) |
| || (verifyfncnt != 0 && verifyfncnt != 2) |
| || (verifyrecfncnt != 0 && verifyrecfncnt != 2) |
| || (digsignfncnt != 0 && digsignfncnt != 2) |
| || (digsignfncnt == 2 && signature->digest_sign_init == NULL) |
| || (digverifyfncnt != 0 && digverifyfncnt != 2) |
| || (digverifyfncnt == 2 && signature->digest_verify_init == NULL) |
| || (signature->digest_sign != NULL |
| && signature->digest_sign_init == NULL) |
| || (signature->digest_verify != NULL |
| && signature->digest_verify_init == NULL) |
| || (gparamfncnt != 0 && gparamfncnt != 2) |
| || (sparamfncnt != 0 && sparamfncnt != 2) |
| || (gmdparamfncnt != 0 && gmdparamfncnt != 2) |
| || (smdparamfncnt != 0 && smdparamfncnt != 2)) { |
| /* |
| * In order to be a consistent set of functions we must have at least |
| * a set of context functions (newctx and freectx) as well as a set of |
| * "signature" functions: |
| * (sign_init, sign) or |
| * (verify_init verify) or |
| * (verify_recover_init, verify_recover) or |
| * (digest_sign_init, digest_sign_update, digest_sign_final) or |
| * (digest_verify_init, digest_verify_update, digest_verify_final) or |
| * (digest_sign_init, digest_sign) or |
| * (digest_verify_init, digest_verify). |
| * |
| * set_ctx_params and settable_ctx_params are optional, but if one of |
| * them is present then the other one must also be present. The same |
| * applies to get_ctx_params and gettable_ctx_params. The same rules |
| * apply to the "md_params" functions. The dupctx function is optional. |
| */ |
| ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS); |
| goto err; |
| } |
| |
| return signature; |
| err: |
| EVP_SIGNATURE_free(signature); |
| return NULL; |
| } |
| |
| void EVP_SIGNATURE_free(EVP_SIGNATURE *signature) |
| { |
| int i; |
| |
| if (signature == NULL) |
| return; |
| CRYPTO_DOWN_REF(&signature->refcnt, &i, signature->lock); |
| if (i > 0) |
| return; |
| OPENSSL_free(signature->type_name); |
| ossl_provider_free(signature->prov); |
| CRYPTO_THREAD_lock_free(signature->lock); |
| OPENSSL_free(signature); |
| } |
| |
| int EVP_SIGNATURE_up_ref(EVP_SIGNATURE *signature) |
| { |
| int ref = 0; |
| |
| CRYPTO_UP_REF(&signature->refcnt, &ref, signature->lock); |
| return 1; |
| } |
| |
| OSSL_PROVIDER *EVP_SIGNATURE_get0_provider(const EVP_SIGNATURE *signature) |
| { |
| return signature->prov; |
| } |
| |
| EVP_SIGNATURE *EVP_SIGNATURE_fetch(OSSL_LIB_CTX *ctx, const char *algorithm, |
| const char *properties) |
| { |
| return evp_generic_fetch(ctx, OSSL_OP_SIGNATURE, algorithm, properties, |
| evp_signature_from_algorithm, |
| (int (*)(void *))EVP_SIGNATURE_up_ref, |
| (void (*)(void *))EVP_SIGNATURE_free); |
| } |
| |
| EVP_SIGNATURE *evp_signature_fetch_from_prov(OSSL_PROVIDER *prov, |
| const char *algorithm, |
| const char *properties) |
| { |
| return evp_generic_fetch_from_prov(prov, OSSL_OP_SIGNATURE, |
| algorithm, properties, |
| evp_signature_from_algorithm, |
| (int (*)(void *))EVP_SIGNATURE_up_ref, |
| (void (*)(void *))EVP_SIGNATURE_free); |
| } |
| |
| int EVP_SIGNATURE_is_a(const EVP_SIGNATURE *signature, const char *name) |
| { |
| return evp_is_a(signature->prov, signature->name_id, NULL, name); |
| } |
| |
| int evp_signature_get_number(const EVP_SIGNATURE *signature) |
| { |
| return signature->name_id; |
| } |
| |
| const char *EVP_SIGNATURE_get0_name(const EVP_SIGNATURE *signature) |
| { |
| return signature->type_name; |
| } |
| |
| const char *EVP_SIGNATURE_get0_description(const EVP_SIGNATURE *signature) |
| { |
| return signature->description; |
| } |
| |
| void EVP_SIGNATURE_do_all_provided(OSSL_LIB_CTX *libctx, |
| void (*fn)(EVP_SIGNATURE *signature, |
| void *arg), |
| void *arg) |
| { |
| evp_generic_do_all(libctx, OSSL_OP_SIGNATURE, |
| (void (*)(void *, void *))fn, arg, |
| evp_signature_from_algorithm, |
| (int (*)(void *))EVP_SIGNATURE_up_ref, |
| (void (*)(void *))EVP_SIGNATURE_free); |
| } |
| |
| |
| int EVP_SIGNATURE_names_do_all(const EVP_SIGNATURE *signature, |
| void (*fn)(const char *name, void *data), |
| void *data) |
| { |
| if (signature->prov != NULL) |
| return evp_names_do_all(signature->prov, signature->name_id, fn, data); |
| |
| return 1; |
| } |
| |
| const OSSL_PARAM *EVP_SIGNATURE_gettable_ctx_params(const EVP_SIGNATURE *sig) |
| { |
| void *provctx; |
| |
| if (sig == NULL || sig->gettable_ctx_params == NULL) |
| return NULL; |
| |
| provctx = ossl_provider_ctx(EVP_SIGNATURE_get0_provider(sig)); |
| return sig->gettable_ctx_params(NULL, provctx); |
| } |
| |
| const OSSL_PARAM *EVP_SIGNATURE_settable_ctx_params(const EVP_SIGNATURE *sig) |
| { |
| void *provctx; |
| |
| if (sig == NULL || sig->settable_ctx_params == NULL) |
| return NULL; |
| |
| provctx = ossl_provider_ctx(EVP_SIGNATURE_get0_provider(sig)); |
| return sig->settable_ctx_params(NULL, provctx); |
| } |
| |
| static int evp_pkey_signature_init(EVP_PKEY_CTX *ctx, int operation, |
| const OSSL_PARAM params[]) |
| { |
| int ret = 0; |
| void *provkey = NULL; |
| EVP_SIGNATURE *signature = NULL; |
| EVP_KEYMGMT *tmp_keymgmt = NULL; |
| const OSSL_PROVIDER *tmp_prov = NULL; |
| const char *supported_sig = NULL; |
| int iter; |
| |
| if (ctx == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| return -2; |
| } |
| |
| evp_pkey_ctx_free_old_ops(ctx); |
| ctx->operation = operation; |
| |
| ERR_set_mark(); |
| |
| if (evp_pkey_ctx_is_legacy(ctx)) |
| goto legacy; |
| |
| if (ctx->pkey == NULL) { |
| ERR_clear_last_mark(); |
| ERR_raise(ERR_LIB_EVP, EVP_R_NO_KEY_SET); |
| goto err; |
| } |
| |
| /* |
| * Try to derive the supported signature from |ctx->keymgmt|. |
| */ |
| if (!ossl_assert(ctx->pkey->keymgmt == NULL |
| || ctx->pkey->keymgmt == ctx->keymgmt)) { |
| ERR_clear_last_mark(); |
| ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); |
| goto err; |
| } |
| supported_sig = evp_keymgmt_util_query_operation_name(ctx->keymgmt, |
| OSSL_OP_SIGNATURE); |
| if (supported_sig == NULL) { |
| ERR_clear_last_mark(); |
| ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR); |
| goto err; |
| } |
| |
| /* |
| * We perform two iterations: |
| * |
| * 1. Do the normal signature fetch, using the fetching data given by |
| * the EVP_PKEY_CTX. |
| * 2. Do the provider specific signature fetch, from the same provider |
| * as |ctx->keymgmt| |
| * |
| * We then try to fetch the keymgmt from the same provider as the |
| * signature, and try to export |ctx->pkey| to that keymgmt (when |
| * this keymgmt happens to be the same as |ctx->keymgmt|, the export |
| * is a no-op, but we call it anyway to not complicate the code even |
| * more). |
| * If the export call succeeds (returns a non-NULL provider key pointer), |
| * we're done and can perform the operation itself. If not, we perform |
| * the second iteration, or jump to legacy. |
| */ |
| for (iter = 1; iter < 3 && provkey == NULL; iter++) { |
| EVP_KEYMGMT *tmp_keymgmt_tofree = NULL; |
| |
| /* |
| * If we're on the second iteration, free the results from the first. |
| * They are NULL on the first iteration, so no need to check what |
| * iteration we're on. |
| */ |
| EVP_SIGNATURE_free(signature); |
| EVP_KEYMGMT_free(tmp_keymgmt); |
| |
| switch (iter) { |
| case 1: |
| signature = |
| EVP_SIGNATURE_fetch(ctx->libctx, supported_sig, ctx->propquery); |
| if (signature != NULL) |
| tmp_prov = EVP_SIGNATURE_get0_provider(signature); |
| break; |
| case 2: |
| tmp_prov = EVP_KEYMGMT_get0_provider(ctx->keymgmt); |
| signature = |
| evp_signature_fetch_from_prov((OSSL_PROVIDER *)tmp_prov, |
| supported_sig, ctx->propquery); |
| if (signature == NULL) |
| goto legacy; |
| break; |
| } |
| if (signature == NULL) |
| continue; |
| |
| /* |
| * Ensure that the key is provided, either natively, or as a cached |
| * export. We start by fetching the keymgmt with the same name as |
| * |ctx->pkey|, but from the provider of the signature method, using |
| * the same property query as when fetching the signature method. |
| * With the keymgmt we found (if we did), we try to export |ctx->pkey| |
| * to it (evp_pkey_export_to_provider() is smart enough to only actually |
| |
| * export it if |tmp_keymgmt| is different from |ctx->pkey|'s keymgmt) |
| */ |
| tmp_keymgmt_tofree = tmp_keymgmt = |
| evp_keymgmt_fetch_from_prov((OSSL_PROVIDER *)tmp_prov, |
| EVP_KEYMGMT_get0_name(ctx->keymgmt), |
| ctx->propquery); |
| if (tmp_keymgmt != NULL) |
| provkey = evp_pkey_export_to_provider(ctx->pkey, ctx->libctx, |
| &tmp_keymgmt, ctx->propquery); |
| if (tmp_keymgmt == NULL) |
| EVP_KEYMGMT_free(tmp_keymgmt_tofree); |
| } |
| |
| if (provkey == NULL) { |
| EVP_SIGNATURE_free(signature); |
| goto legacy; |
| } |
| |
| ERR_pop_to_mark(); |
| |
| /* No more legacy from here down to legacy: */ |
| |
| ctx->op.sig.signature = signature; |
| ctx->op.sig.algctx = |
| signature->newctx(ossl_provider_ctx(signature->prov), ctx->propquery); |
| if (ctx->op.sig.algctx == NULL) { |
| /* The provider key can stay in the cache */ |
| ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR); |
| goto err; |
| } |
| |
| switch (operation) { |
| case EVP_PKEY_OP_SIGN: |
| if (signature->sign_init == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| ret = -2; |
| goto err; |
| } |
| ret = signature->sign_init(ctx->op.sig.algctx, provkey, params); |
| break; |
| case EVP_PKEY_OP_VERIFY: |
| if (signature->verify_init == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| ret = -2; |
| goto err; |
| } |
| ret = signature->verify_init(ctx->op.sig.algctx, provkey, params); |
| break; |
| case EVP_PKEY_OP_VERIFYRECOVER: |
| if (signature->verify_recover_init == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| ret = -2; |
| goto err; |
| } |
| ret = signature->verify_recover_init(ctx->op.sig.algctx, provkey, |
| params); |
| break; |
| default: |
| ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR); |
| goto err; |
| } |
| |
| if (ret <= 0) { |
| signature->freectx(ctx->op.sig.algctx); |
| ctx->op.sig.algctx = NULL; |
| goto err; |
| } |
| goto end; |
| |
| legacy: |
| /* |
| * If we don't have the full support we need with provided methods, |
| * let's go see if legacy does. |
| */ |
| ERR_pop_to_mark(); |
| EVP_KEYMGMT_free(tmp_keymgmt); |
| tmp_keymgmt = NULL; |
| |
| if (ctx->pmeth == NULL |
| || (operation == EVP_PKEY_OP_SIGN && ctx->pmeth->sign == NULL) |
| || (operation == EVP_PKEY_OP_VERIFY && ctx->pmeth->verify == NULL) |
| || (operation == EVP_PKEY_OP_VERIFYRECOVER |
| && ctx->pmeth->verify_recover == NULL)) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| return -2; |
| } |
| |
| switch (operation) { |
| case EVP_PKEY_OP_SIGN: |
| if (ctx->pmeth->sign_init == NULL) |
| return 1; |
| ret = ctx->pmeth->sign_init(ctx); |
| break; |
| case EVP_PKEY_OP_VERIFY: |
| if (ctx->pmeth->verify_init == NULL) |
| return 1; |
| ret = ctx->pmeth->verify_init(ctx); |
| break; |
| case EVP_PKEY_OP_VERIFYRECOVER: |
| if (ctx->pmeth->verify_recover_init == NULL) |
| return 1; |
| ret = ctx->pmeth->verify_recover_init(ctx); |
| break; |
| default: |
| ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR); |
| goto err; |
| } |
| if (ret <= 0) |
| goto err; |
| end: |
| #ifndef FIPS_MODULE |
| if (ret > 0) |
| ret = evp_pkey_ctx_use_cached_data(ctx); |
| #endif |
| |
| EVP_KEYMGMT_free(tmp_keymgmt); |
| return ret; |
| err: |
| evp_pkey_ctx_free_old_ops(ctx); |
| ctx->operation = EVP_PKEY_OP_UNDEFINED; |
| EVP_KEYMGMT_free(tmp_keymgmt); |
| return ret; |
| } |
| |
| int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx) |
| { |
| return evp_pkey_signature_init(ctx, EVP_PKEY_OP_SIGN, NULL); |
| } |
| |
| int EVP_PKEY_sign_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]) |
| { |
| return evp_pkey_signature_init(ctx, EVP_PKEY_OP_SIGN, params); |
| } |
| |
| int EVP_PKEY_sign(EVP_PKEY_CTX *ctx, |
| unsigned char *sig, size_t *siglen, |
| const unsigned char *tbs, size_t tbslen) |
| { |
| int ret; |
| |
| if (ctx == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| return -2; |
| } |
| |
| if (ctx->operation != EVP_PKEY_OP_SIGN) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_INITIALIZED); |
| return -1; |
| } |
| |
| if (ctx->op.sig.algctx == NULL) |
| goto legacy; |
| |
| ret = ctx->op.sig.signature->sign(ctx->op.sig.algctx, sig, siglen, |
| (sig == NULL) ? 0 : *siglen, tbs, tbslen); |
| |
| return ret; |
| legacy: |
| |
| if (ctx->pmeth == NULL || ctx->pmeth->sign == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| return -2; |
| } |
| |
| M_check_autoarg(ctx, sig, siglen, EVP_F_EVP_PKEY_SIGN) |
| return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen); |
| } |
| |
| int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx) |
| { |
| return evp_pkey_signature_init(ctx, EVP_PKEY_OP_VERIFY, NULL); |
| } |
| |
| int EVP_PKEY_verify_init_ex(EVP_PKEY_CTX *ctx, const OSSL_PARAM params[]) |
| { |
| return evp_pkey_signature_init(ctx, EVP_PKEY_OP_VERIFY, params); |
| } |
| |
| int EVP_PKEY_verify(EVP_PKEY_CTX *ctx, |
| const unsigned char *sig, size_t siglen, |
| const unsigned char *tbs, size_t tbslen) |
| { |
| int ret; |
| |
| if (ctx == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| return -2; |
| } |
| |
| if (ctx->operation != EVP_PKEY_OP_VERIFY) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_INITIALIZED); |
| return -1; |
| } |
| |
| if (ctx->op.sig.algctx == NULL) |
| goto legacy; |
| |
| ret = ctx->op.sig.signature->verify(ctx->op.sig.algctx, sig, siglen, |
| tbs, tbslen); |
| |
| return ret; |
| legacy: |
| if (ctx->pmeth == NULL || ctx->pmeth->verify == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| return -2; |
| } |
| |
| return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen); |
| } |
| |
| int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx) |
| { |
| return evp_pkey_signature_init(ctx, EVP_PKEY_OP_VERIFYRECOVER, NULL); |
| } |
| |
| int EVP_PKEY_verify_recover_init_ex(EVP_PKEY_CTX *ctx, |
| const OSSL_PARAM params[]) |
| { |
| return evp_pkey_signature_init(ctx, EVP_PKEY_OP_VERIFYRECOVER, params); |
| } |
| |
| int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx, |
| unsigned char *rout, size_t *routlen, |
| const unsigned char *sig, size_t siglen) |
| { |
| int ret; |
| |
| if (ctx == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| return -2; |
| } |
| |
| if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_INITIALIZED); |
| return -1; |
| } |
| |
| if (ctx->op.sig.algctx == NULL) |
| goto legacy; |
| |
| ret = ctx->op.sig.signature->verify_recover(ctx->op.sig.algctx, rout, |
| routlen, |
| (rout == NULL ? 0 : *routlen), |
| sig, siglen); |
| return ret; |
| legacy: |
| if (ctx->pmeth == NULL || ctx->pmeth->verify_recover == NULL) { |
| ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
| return -2; |
| } |
| M_check_autoarg(ctx, rout, routlen, EVP_F_EVP_PKEY_VERIFY_RECOVER) |
| return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen); |
| } |
