Module symmetric 

Unauthenticated symmetric encryption and decryption.

This module provides a uniform streaming interface to unauthenticated symmetric encryption and decryption using different block ciphers and padding modes.

Note: this is a very low-level interface. It is not about OpenPGP encryption or decryption. If you are looking for that, see crate::serialize::stream::Encryptor and crate::parse::stream::Decryptor instead.

Examples

let text = b"Hello World :)";
let algo = SymmetricAlgorithm::AES128;
let key = SessionKey::new(algo.key_size()?)?;

// Encrypt the `text`.
let mut ciphertext = Vec::new();
let mut encryptor = Encryptor::new(
    algo, BlockCipherMode::CFB, PaddingMode::None,
    &key, None, &mut ciphertext)?;
encryptor.write_all(text)?;
encryptor.finalize()?;

// Decrypt the `ciphertext`.
let mut plaintext = Vec::new();
let reader = buffered_reader::Memory::with_cookie(
    &ciphertext, Default::default());

let mut decryptor = Decryptor::new(
    algo, BlockCipherMode::CFB, UnpaddingMode::None,
    &key, None, reader)?;

decryptor.read_to_end(&mut plaintext)?;

// Check that we recovered it.
assert_eq!(&plaintext[..], text);

Structs

Decryptor

A BufferedReader that decrypts symmetrically-encrypted data as it is read.

Encryptor

A Writer that symmetrically encrypts data as it is written.

Enums

BlockCipherMode

Block cipher mode of operation.

PaddingMode

Padding mode for encryption.

UnpaddingMode

Padding mode for decryption.