Fabio Alessandrelli 6b5634b96a [OS/Crypto] Add get_entropy to OS.
Implemented via `BCryptGenRandom` on Windows.
Implemented via `getentropy` syscall when available.
Implemented via `/dev/urandom` device as a fallback.

The `/dev/urandom` fallback can be disabled via the `NO_URANDOM` build
flag.

Note: The HTML5 version relies on emscripten file system urandom
device which itself uses the Crypto API when available or the plain
old not crypto-safe `Math.random()` otherwise.

Restore get_entropy.
2022-02-14 10:45:50 +01:00
..
2022-01-06 14:35:22 +02:00
2022-01-03 21:27:34 +01:00
2022-02-14 10:45:50 +01:00