| // Copyright 2026 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. |
| |
| #include <openssl/chacha.h> |
| |
| #include "pw_bytes/span.h" |
| #include "pw_crypto/chacha20_backend.h" |
| #include "pw_status/status.h" |
| |
| namespace pw::crypto::chacha20 { |
| namespace backend { |
| |
| Status DoChaCha20Crypt(span<const std::byte> key, |
| span<const std::byte> nonce, |
| span<const std::byte> input, |
| span<std::byte> output) { |
| CRYPTO_chacha_20(reinterpret_cast<uint8_t*>(output.data()), |
| reinterpret_cast<const uint8_t*>(input.data()), |
| input.size(), |
| reinterpret_cast<const uint8_t*>(key.data()), |
| reinterpret_cast<const uint8_t*>(nonce.data()), |
| 0); |
| |
| return OkStatus(); |
| } |
| |
| } // namespace backend |
| } // namespace pw::crypto::chacha20 |
