c2-chacha
| Crates.io | c2-chacha |
| lib.rs | c2-chacha |
| version | 0.3.3 |
| created_at | 2019-02-03 05:15:58.65764+00 |
| updated_at | 2021-10-24 18:02:16.649893+00 |
| description | The ChaCha family of stream ciphers |
| homepage | |
| repository | https://github.com/cryptocorrosion/cryptocorrosion |
| max_upload_size | |
| id | 112315 |
| size | 48,911 |
Kaz Wesley (kazcw)
documentation
https://docs.rs/c2-chacha
README
The ChaCha family of stream ciphers
Features
- pure Rust implementation
- supports the RustCrypto API
- builds on stable Rust
- portable
- fast: within 15% of throughput of a hand-optimized ASM SIMD implementation (floodberry/chacha-opt) on my machine (a Xeon X5650, using ppv-lite86)
- no-std compatible (std required only for runtime algorithm selection)
Supported Variants
ChaCha20: used in chacha20-poly1305 in TLS, OpenSSH; arc4random in the BSDs, Linux /dev/urandom since 4.8.
Ietf: IETF RFC 7539. Longer nonce, short block counter.
XChaCha20: constructed analogously to XSalsa20; a mixing step during initialization allows using a long nonce and along with a full-sized block counter.
ChaCha12, ChaCha8: faster; lower security margin of safety.