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].
[^1]: D. J. Bernstein, ChaCha, a variant of Salsa20
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).