rand-esdm 0.3.1

provides interface to ESDM RNG server
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46

# rand-esdm

[![crates.io](https://img.shields.io/crates/v/rand-esdm.svg)](https://crates.io/crates/rand-esdm)

## About
A small library for interfacing Rust with the [ESDM](https://github.com/smuellerDD/esdm) user-space random server.

It currently provides the minimal amount of bindings necessary to use ESDM together with the [rand crate](https://github.com/rust-random/rand).

## Usage Example

### Add rand-esdm to your Cargo.toml

```toml
rand-esdm = "0.3.0"
```

### Generate Random Numbers with rand crate

Choose type of rng:

- Only usable when fully seeded: ```let mut rng = EsdmRng::new(EsdmRngType::FullySeeded);```
- Only usable with fresh entropy: ```let mut rng = EsdmRng::new(EsdmRngType::PredictionResistant);```

Include RngExt utility trait from rand:
```rust
use rand::RngExt;
```

Draw random numbers as needed, e.g.:
```rust  
let rnd: u64 = rng.random();
```

Complete toy example can be found in `examples/readme.rs`:
```rust
use rand::RngExt;
use rand::rand_core::UnwrapErr;
use rand_esdm::{EsdmRng, EsdmRngType};

fn main() {
    let mut rng = UnwrapErr(EsdmRng::new(EsdmRngType::FullySeeded));
    let rnd: u32 = rng.random();
    println!("{rnd:X}");
}
```