A cryptographically secure random number generator that uses the ChaCha algorithm.
ChaCha is a stream cipher designed by Daniel J. Bernstein[^1], that we use as an RNG. It is an improved variant of the Salsa20 cipher family, which was selected as one of the “stream ciphers suitable for widespread adoption” by eSTREAM[^2].
Links:
[^1]: D. J. Bernstein, ChaCha, a variant of Salsa20
[^2]: eSTREAM: the ECRYPT Stream Cipher Project
rand_chacha is no_std compatible. It does not require any functionality outside of the core lib, thus there are no features to configure.
rand_chacha is distributed under the terms of both the MIT license and the Apache License (Version 2.0).
See LICENSE-APACHE and LICENSE-MIT, and COPYRIGHT for details.