Crate rand_core

Random number generation traits

This crate is mainly of interest to crates publishing implementations of RngCore. Other users are encouraged to use the rand crate instead which re-exports the main traits and error types.

RngCore is the core trait implemented by algorithmic pseudo-random number generators and external random-number sources.

SeedableRng is an extension trait for construction from fixed seeds and other random number generators.

The impls and le sub-modules include a few small functions to assist implementation of RngCore.

Modules

block

The BlockRngCore trait and implementation helpers

impls

Helper functions for implementing RngCore functions.

le

Little-Endian utilities

Structs

OsError

Error type of OsRng

OsRng

An interface over the operating-system’s random data source

RngReadAdapter

Adapter that enables reading through a io::Read from a RngCore.

UnwrapErr

Wrapper around TryRngCore implementation which implements RngCore by panicking on potential errors.

UnwrapMut

Wrapper around TryRngCore implementation which implements RngCore by panicking on potential errors.

Traits

CryptoRng

A marker trait over RngCore for securely unpredictable RNGs

RngCore

Implementation-level interface for RNGs

SeedableRng

A random number generator that can be explicitly seeded.

TryCryptoRng

A marker trait over TryRngCore for securely unpredictable RNGs

TryRngCore

A potentially fallible variant of RngCore