libzeropool_rs/
random.rs

1use getrandom::getrandom;
2use libzeropool::fawkes_crypto::rand::{Error as RandError, RngCore};
3
4#[derive(Debug)]
5struct ErrorWrapper(getrandom::Error);
6
7impl std::error::Error for ErrorWrapper {}
8
9impl std::fmt::Display for ErrorWrapper {
10    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
11        self.0.fmt(f)
12    }
13}
14#[derive(Default)]
15pub struct CustomRng;
16
17impl RngCore for CustomRng {
18    fn next_u32(&mut self) -> u32 {
19        let mut buf = [0; std::mem::size_of::<u32>()];
20        getrandom(&mut buf).expect("getrandom failed");
21
22        u32::from_ne_bytes(buf)
23    }
24
25    fn next_u64(&mut self) -> u64 {
26        let mut buf = [0; std::mem::size_of::<u64>()];
27        getrandom(&mut buf).expect("getrandom failed");
28
29        u64::from_ne_bytes(buf)
30    }
31
32    fn fill_bytes(&mut self, dest: &mut [u8]) {
33        getrandom(dest).expect("getrandom failed");
34    }
35
36    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), RandError> {
37        getrandom(dest).map_err(|err| RandError::new(ErrorWrapper(err)))
38    }
39}
libzeropool_rs/random.rs

libzeropool_rs/
random.rs
