https://github.com/prongbang/lazychacha-rs
Lazy ChaCha20-Poly1305 in Rust base on RustCrypto: ChaCha20Poly1305.
https://github.com/prongbang/lazychacha-rs
chacha20 chacha20-poly1305 lazychacha
Last synced: 6 months ago
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Lazy ChaCha20-Poly1305 in Rust base on RustCrypto: ChaCha20Poly1305.
- Host: GitHub
- URL: https://github.com/prongbang/lazychacha-rs
- Owner: prongbang
- License: mit
- Created: 2024-04-18T16:10:35.000Z (over 1 year ago)
- Default Branch: master
- Last Pushed: 2024-04-18T16:20:17.000Z (over 1 year ago)
- Last Synced: 2025-03-25T22:52:06.149Z (7 months ago)
- Topics: chacha20, chacha20-poly1305, lazychacha
- Language: Rust
- Homepage: https://crates.io/crates/lazychacha
- Size: 4.88 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# lazychacha-rs
Lazy ChaCha20-Poly1305 in Rust base on RustCrypto: ChaCha20Poly1305.
[](https://www.buymeacoffee.com/prongbang)
### Algorithm details
- Key exchange: X25519
- Encryption: ChaCha20
- Authentication: Poly1305
### Benchmark
```shell
Gnuplot not found, using plotters backend
encrypt time: [1.2343 µs 1.2372 µs 1.2407 µs]
change: [-1.9100% -1.5520% -1.2222%] (p = 0.00 < 0.05)
Performance has improved.
Found 7 outliers among 100 measurements (7.00%)
5 (5.00%) high mild
2 (2.00%) high severe
Benchmarking decrypt: Warming up for 3.0000 s
decrypt time: [1.0420 µs 1.0439 µs 1.0462 µs]
change: [-16.591% -14.215% -12.124%] (p = 0.00 < 0.05)
Performance has improved.
Found 4 outliers among 100 measurements (4.00%)
2 (2.00%) high mild
2 (2.00%) high severe
```
### How to use
- Generate KeyPair
```rust
let keypair = KeyPair::new();
```
- Key Exchange & Shared Key
```rust
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);
```
- Encrypt
```rust
let lazychacha = LazyChaCha::new();
let shared_key = SharedKey::new(server_pk, client_kp.sk);
let plaintext = r#"{"message": "hi"}"#;
let ciphertext = lazychacha.encrypt(plaintext, shared_key);
```
- Decrypt
```rust
let lazychacha = LazyChaCha::new();
let shared_key = SharedKey::new(server_pk, client_kp.sk);
let ciphertext = "58b99ca4a7";
let plaintext = lazychacha.decrypt(ciphertext, shared_key);
```