| commit | 739b3a5468cc35b3565757a02a943a8376bc0cae | [log] [tgz] |
|---|---|---|
| author | Xin Li <delphij@google.com> | Fri Oct 09 03:23:04 2020 +0000 |
| committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Fri Oct 09 03:23:04 2020 +0000 |
| tree | 90d0993f8d87f9162ce6fac703f26eb306d1e5e0 | |
| parent | a38780f5056eec4e443640545530c4ae9f2479a8 [diff] | |
| parent | ce19fabea7826a3e9f7553ba16ab6d78cc42f666 [diff] |
[automerger skipped] Skip ab/6749736 in stage. am: e85eee3cf2 -s ours am: ce19fabea7 -s ours am skip reason: Change-Id I18f6bca6bd5e92d2d74a7c2993fefaca2bce14dd with SHA-1 8437dd85ad is in history Original change: https://googleplex-android-review.googlesource.com/c/platform/external/rust/crates/rand_chacha/+/12797366 Change-Id: I584dbb497afe7c9bfa860cd4e6e9c4fad763318e
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].
The RNGs provided by this crate are implemented via the fast stream ciphers of the c2-chacha crate.
Links:
[^1]: D. J. Bernstein, ChaCha, a variant of Salsa20
[^2]: eSTREAM: the ECRYPT Stream Cipher Project
rand_chacha is no_std compatible when disabling default features; the std feature can be explicitly required to re-enable std support. Using std allows detection of CPU features and thus better optimisation.
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.