| // 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 |
| // |
| // 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. |
| // |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| package subtle |
| |
| // INDCPACipher provides an interface for symmetric key ciphers that are |
| // indistinguishable against chosen-plaintext attacks. Said primitives do not |
| // provide authentication, thus should not be used directly, but only to |
| // construct safer primitives such as AEAD. |
| type INDCPACipher interface { |
| // Encrypt encrypts plaintext. The resulting ciphertext is indistinguishable under |
| // chosen-plaintext attack. However, it does not have integrity protection. |
| Encrypt(plaintext []byte) ([]byte, error) |
| |
| // Decrypt decrypts ciphertext and returns the resulting plaintext. |
| Decrypt(ciphertext []byte) ([]byte, error) |
| } |