/* * Copyright 2018-2021 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 */ /* Internal EC functions for other submodules: not for application use */ #ifndef OSSL_CRYPTO_EC_H # define OSSL_CRYPTO_EC_H # pragma once # include <openssl/opensslconf.h> # include <openssl/evp.h> int ossl_ec_curve_name2nid(const char *name); const char *ossl_ec_curve_nid2nist_int(int nid); int ossl_ec_curve_nist2nid_int(const char *name); int evp_pkey_ctx_set_ec_param_enc_prov(EVP_PKEY_CTX *ctx, int param_enc); # ifndef OPENSSL_NO_EC # include <openssl/core.h> # include <openssl/ec.h> # include "crypto/types.h" /*- * Computes the multiplicative inverse of x in the range * [1,EC_GROUP::order), where EC_GROUP::order is the cardinality of the * subgroup generated by the generator G: * * res := x^(-1) (mod EC_GROUP::order). * * This function expects the following two conditions to hold: * - the EC_GROUP order is prime, and * - x is included in the range [1, EC_GROUP::order). * * This function returns 1 on success, 0 on error. * * If the EC_GROUP order is even, this function explicitly returns 0 as * an error. * In case any of the two conditions stated above is not satisfied, * the correctness of its output is not guaranteed, even if the return * value could still be 1 (as primality testing and a conditional modular * reduction round on the input can be omitted by the underlying * implementations for better SCA properties on regular input values). */ __owur int ossl_ec_group_do_inverse_ord(const EC_GROUP *group, BIGNUM *res, const BIGNUM *x, BN_CTX *ctx); /*- * ECDH Key Derivation Function as defined in ANSI X9.63 */ int ossl_ecdh_kdf_X9_63(unsigned char *out, size_t outlen, const unsigned char *Z, size_t Zlen, const unsigned char *sinfo, size_t sinfolen, const EVP_MD *md, OSSL_LIB_CTX *libctx, const char *propq); int ossl_ec_key_public_check(const EC_KEY *eckey, BN_CTX *ctx); int ossl_ec_key_public_check_quick(const EC_KEY *eckey, BN_CTX *ctx); int ossl_ec_key_private_check(const EC_KEY *eckey); int ossl_ec_key_pairwise_check(const EC_KEY *eckey, BN_CTX *ctx); OSSL_LIB_CTX *ossl_ec_key_get_libctx(const EC_KEY *eckey); const char *ossl_ec_key_get0_propq(const EC_KEY *eckey); void ossl_ec_key_set0_libctx(EC_KEY *key, OSSL_LIB_CTX *libctx); /* Backend support */ int ossl_ec_group_todata(const EC_GROUP *group, OSSL_PARAM_BLD *tmpl, OSSL_PARAM params[], OSSL_LIB_CTX *libctx, const char *propq, BN_CTX *bnctx, unsigned char **genbuf); int ossl_ec_group_fromdata(EC_KEY *ec, const OSSL_PARAM params[]); int ossl_ec_group_set_params(EC_GROUP *group, const OSSL_PARAM params[]); int ossl_ec_key_fromdata(EC_KEY *ecx, const OSSL_PARAM params[], int include_private); int ossl_ec_key_otherparams_fromdata(EC_KEY *ec, const OSSL_PARAM params[]); int ossl_ec_key_is_foreign(const EC_KEY *ec); EC_KEY *ossl_ec_key_dup(const EC_KEY *key, int selection); int ossl_x509_algor_is_sm2(const X509_ALGOR *palg); EC_KEY *ossl_ec_key_param_from_x509_algor(const X509_ALGOR *palg, OSSL_LIB_CTX *libctx, const char *propq); EC_KEY *ossl_ec_key_from_pkcs8(const PKCS8_PRIV_KEY_INFO *p8inf, OSSL_LIB_CTX *libctx, const char *propq); int ossl_ec_set_ecdh_cofactor_mode(EC_KEY *ec, int mode); int ossl_ec_encoding_name2id(const char *name); int ossl_ec_encoding_param2id(const OSSL_PARAM *p, int *id); int ossl_ec_pt_format_name2id(const char *name); int ossl_ec_pt_format_param2id(const OSSL_PARAM *p, int *id); char *ossl_ec_pt_format_id2name(int id); char *ossl_ec_check_group_type_id2name(int flags); int ossl_ec_set_check_group_type_from_name(EC_KEY *ec, const char *name); # endif /* OPENSSL_NO_EC */ #endif