KeyStream is used at run time in 105 crates (of which 8 optionally). It is a direct run-time dependency in 4 crates. It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) KeyStream version
155K 9 chacha ^1
155K 2 lioness ^1.0.0
2 sphinxcrypto ^1.0.0
rust-lioness ^1.0.0