lazyxchacha-rs

基于 RustCrypto: ChaCha20Poly1305 的 Rust 实现 Lazy XChaCha20-Poly1305。

算法细节

• 密钥交换：X25519
• 加密：XChaCha20
• 认证：Poly1305

基准测试

Gnuplot not found, using plotters backend
encrypt                 time:   [1.4821 µs 1.4897 µs 1.5010 µs]
                        change: [-33.403% -32.895% -32.441%] (p = 0.00 < 0.05)
                        Performance has improved.
Found 4 outliers among 100 measurements (4.00%)
  1 (1.00%) high mild
  3 (3.00%) high severe

Benchmarking decrypt: Warming up for 3.0000 s
decrypt                 time:   [1.3529 µs 1.3560 µs 1.3594 µs]
                        change: [-27.218% -27.057% -26.897%] (p = 0.00 < 0.05)
                        Performance has improved.
Found 8 outliers among 100 measurements (8.00%)
  8 (8.00%) high mild

如何使用

• 生成密钥对

let keypair = KeyPair::new();

• 密钥交换 & 共享密钥

let client_kp = KeyPair::new();
let server_kp = KeyPair::new();
let server_pk = server_kp.pk_string();

let shared_key = SharedKey::new(server_pk, client_kp.sk);

• 加密

let lazyxchacha = LazyXChaCha::new();
let shared_key = SharedKey::new(server_pk, client_kp.sk);
let plaintext = r#"{"message": "hi"}"#;

let ciphertext = lazyxchacha.encrypt(plaintext, shared_key);

• 解密

let lazyxchacha = LazyXChaCha::new();
let shared_key = SharedKey::new(server_pk, client_kp.sk);
let ciphertext = "58b99ca4a7";

let plaintext = lazyxchacha.decrypt(ciphertext, shared_key);