// IMPORTANT! key and nonce SHOULD generate by random
let mut key = [0u8; 32];
let mut nonce = [0; 12];
let mut encryptor = Aes256GcmStreamEncryptor::new(key.clone(), &nonce);
let mut ciphertext = vec![];
ciphertext.extend_from_slice(&encryptor.update(b"Hello "));
ciphertext.extend_from_slice(&encryptor.update(b" World"));
ciphertext.extend_from_slice(&encryptor.update(b"!"));
let (last_block, tag) = encryptor.finalize();
ciphertext.extend_from_slice(&last_block);
ciphertext.extend_from_slice(&tag);
println!("Ciphertext: {}", hex::encode(&ciphertext));Open example: encrypt_and_decrypt.rs
$ cargo run --example encrypt_and_decrypt
Finished dev [unoptimized + debuginfo] target(s) in 0.10s
Running `target/debug/examples/encrypt_and_decrypt`
Ciphertext: 86c22c5122404b39683ca9b79b889fd00a6212d1be2ebc3f4f8f22f90b
Plaintext: Hello World!Benchmark @MacBook Pro (Retina, 15-inch, Late 2013/2 GHz Quad-Core Intel Core i7)
$ cargo run --release --example bench
AES128 encrypt : 483.04 M/s
AES192 encrypt : 466.22 M/s
AES256 encrypt : 451.38 M/s
AES256 en/decrypt : 222.66 M/s
AES256 encrypt aes-gcm : 547.63 M/s
Thanks: