| /** @file |
| * |
| * HKDF utility (BoringSSL version) |
| * |
| * @section license License |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 |
| * |
| * http://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. |
| */ |
| #include "tscore/HKDF.h" |
| #include <openssl/hkdf.h> |
| |
| HKDF::HKDF(const EVP_MD *digest) : _digest(digest) {} |
| HKDF::~HKDF() {} |
| |
| int |
| HKDF::extract(uint8_t *dst, size_t *dst_len, const uint8_t *salt, size_t salt_len, const uint8_t *ikm, size_t ikm_len) |
| { |
| return HKDF_extract(dst, dst_len, this->_digest, ikm, ikm_len, salt, salt_len); |
| } |
| |
| int |
| HKDF::expand(uint8_t *dst, size_t *dst_len, const uint8_t *prk, size_t prk_len, const uint8_t *info, size_t info_len, |
| uint16_t length) |
| { |
| *dst_len = length; |
| return HKDF_expand(dst, length, this->_digest, prk, prk_len, info, info_len); |
| } |