Struct scuttlebutt::AesRng

pub struct AesRng(/* private fields */);

Implementation of a random number generator based on fixed-key AES.

This uses AES in a counter-mode-esque way, but with the counter always starting at zero. When used as a PRNG this is okay [TODO: citation?].

Implementations

impl AesRng

pub fn new() -> Self

Create a new random number generator using a random seed from rand::random.

pub fn fork(&mut self) -> Self

Create a new RNG using a random seed from this one.

pub fn random_bits(&mut self) -> [U8x16; 8]

Generate random bits.

pub fn random_bits_custom_size<const N: usize>(&mut self) -> [U8x16; N]

where ArrayUnrolledOps: UnrollableArraySize<N>,

Generate N * 128 random bits.

Alternatives

Consider using Self::random_bits instead.

Trait Implementations

impl Clone for AesRng

fn clone(&self) -> AesRng

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AesRng

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for AesRng

fn default() -> Self

Returns the “default value” for a type.

impl RngCore for AesRng

fn next_u32(&mut self) -> u32

Return the next random u32.

fn next_u64(&mut self) -> u64

Return the next random u64.

fn fill_bytes(&mut self, dest: &mut [u8])

Fill dest with random data.

fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>

Fill dest entirely with random data.

impl SeedableRng for AesRng

type Seed = <AesRngCore as SeedableRng>::Seed

Seed type, which is restricted to types mutably-dereferenceable as u8 arrays (we recommend [u8; N] for some N).

fn from_seed(seed: Self::Seed) -> Self

Create a new PRNG using the given seed.

fn from_rng<R: RngCore>(rng: R) -> Result<Self, Error>

Create a new PRNG seeded from another Rng.

fn seed_from_u64(state: u64) -> Self

Create a new PRNG using a u64 seed.

fn from_entropy() -> Self

Creates a new instance of the RNG seeded via getrandom.

impl CryptoRng for AesRng