chacha20poly1305 (cargo): Pure Rust implementation of the ChaCha20Poly1305 Authenticated Encryption with Additional Data Cipher (RFC 8439) with optional architecture-specific hardware acceleration. Also contains implementations of the XChaCha20Poly1305 extended nonce variant of ChaCha20Poly1305, and the reduced-round ChaCha8Poly1305 and ChaCha12Poly1305 lightweight variants. 
Keywords: chacha20|poly1305|aead|xchacha20|xchacha20poly1305