| // Copyright 2018 The BoringSSL Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef OPENSSL_HEADER_CRYPTO_FIPSMODULE_TLS_INTERNAL_H |
| #define OPENSSL_HEADER_CRYPTO_FIPSMODULE_TLS_INTERNAL_H |
| |
| #include <openssl/base.h> |
| |
| |
| BSSL_NAMESPACE_BEGIN |
| |
| // CRYPTO_tls13_hkdf_expand_label computes the TLS 1.3 KDF function of the same |
| // name. See https://www.rfc-editor.org/rfc/rfc8446#section-7.1. |
| OPENSSL_EXPORT int CRYPTO_tls13_hkdf_expand_label( |
| uint8_t *out, size_t out_len, const EVP_MD *digest, // |
| const uint8_t *secret, size_t secret_len, // |
| const uint8_t *label, size_t label_len, // |
| const uint8_t *hash, size_t hash_len); |
| |
| BSSL_NAMESPACE_END |
| |
| #endif // OPENSSL_HEADER_CRYPTO_FIPSMODULE_TLS_INTERNAL_H |
