golang-github-aead-chacha20-dev - 0.0~git20180709.8b13a72-1 main

The ChaCha20 stream cipher ChaCha is a stream cipher family
created by Daniel J. Bernstein. The most common ChaCha cipher
is ChaCha20 (20 rounds). ChaCha20 is standardized in RFC 7539
(https://tools.ietf.org/html/rfc7539).
.
This package provides implementations of three ChaCha versions: -
ChaCha20 with a 64 bit nonce (can en/decrypt up to 2^64 * 64 bytes
for one key-nonce combination) - ChaCha20 with a 96 bit nonce (can
en/decrypt up to 2^32 * 64 bytes ~ 256 GB for one key-nonce combination)
- XChaCha20 with a 192 bit nonce (can en/decrypt up to 2^64 * 64 bytes
for one key-nonce combination)
.
Furthermore the chacha subpackage implements ChaCha20/12 and ChaCha20/8.
These versions use 12 or 8 rounds instead of 20. But it's recommended
to use ChaCha20 (with 20 rounds) - it will be fast enough for
almost all purposes.