| // Copyright 2021 The Pigweed 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. |
| #define PW_LOG_MODULE_NAME "SHA256-BSSL" |
| #define PW_LOG_LEVEL PW_LOG_LEVEL_WARN |
| |
| #include "pw_crypto/sha256.h" |
| #include "pw_status/status.h" |
| |
| namespace pw::crypto::sha256::backend { |
| |
| Status DoInit(NativeSha256Context& ctx) { |
| if (!SHA256_Init(&ctx)) { |
| return Status::Internal(); |
| } |
| return OkStatus(); |
| } |
| |
| Status DoUpdate(NativeSha256Context& ctx, ConstByteSpan data) { |
| if (!SHA256_Update(&ctx, |
| reinterpret_cast<const unsigned char*>(data.data()), |
| data.size())) { |
| return Status::Internal(); |
| } |
| |
| return OkStatus(); |
| } |
| |
| Status DoFinal(NativeSha256Context& ctx, ByteSpan out_digest) { |
| if (!SHA256_Final(reinterpret_cast<unsigned char*>(out_digest.data()), |
| &ctx)) { |
| return Status::Internal(); |
| } |
| |
| return OkStatus(); |
| } |
| |
| } // namespace pw::crypto::sha256::backend |