ChaCha20 Quick-n-dirty standalone Java implementation of ChaCha20 (256-bit key, 64- or 96-bit nonce) References: http://cr.yp.to/chacha/chacha-20080128.pdf https://tools.ietf.org/html/draft-irtf-cfrg-chacha20-poly1305-01 https://github.com/quartzjer/chacha20 https://github.com/jotcmd/chacha20