Trait crypto_bigint::RandomMod[−][src]

pub trait RandomMod: Sized + Zero {
    fn random_mod(
        rng: impl CryptoRng + RngCore, 
        modulus: &NonZero<Self>
    ) -> Self;
}
This is supported on crate feature rand_core only.
Expand description

Modular random number generation support.

Required methods

Generate a cryptographically secure random number which is less than a given modulus.

This function uses rejection sampling, a method which produces an unbiased distribution of in-range values provided the underlying CryptoRng is unbiased, but runs in variable-time.

The variable-time nature of the algorithm should not pose a security issue so long as the underlying random number generator is truly a CryptoRng, where previous outputs are unrelated to subsequent outputs and do not reveal information about the RNG’s internal state.

Implementors