A .NET implementation of ChaCha8, ChaCha12, and ChaCha20.
Warning
- You'd be better off using ChaCha20 from libsodium.
- The nonce MUST NOT be repeated or reused with the same key.
- Do NOT touch the counter unless you know how ChaCha works internally.
- I do NOT recommend ChaCha8; ChaCha20 offers a much safer security margin.