InsecureRandomContext

Synopsis

Declared in <random.h>

class InsecureRandomContext
    : public RandomMixin<InsecureRandomContext>

Memory footprint is very small, period is 2^128 - 1. This class is not thread-safe.

Reference implementation available at https://prng.di.unimi.it/xoroshiro128plusplus.c See https://prng.di.unimi.it/

Name	Description
`RandomMixin<InsecureRandomContext>`	Mixin class that provides helper randomness functions.

Name	Description
`result_type`	Result type of the generator, for the UniformRandomBitGenerator concept.

Name	Description
`InsecureRandomContext` [constructor]	Construct the context, deriving the initial state from a seed value.
`operator=`	Assignment operators
`Reseed`	Reset the context to a new state derived from a seed value.
`fillrand`	Fill a span with random bytes.
`operator()`	Generate the next random value, for the UniformRandomBitGenerator concept.
`rand`	Generate a random integer in its entire (non-negative) range.
`rand256`	generate a random uint256.
`rand32`	Generate a random 32-bit integer.
`rand64`	Generate a random 64-bit integer.
`rand_exp_duration`	Return a duration sampled from an exponential distribution (https://en.wikipedia.org/wiki/Exponential_distribution). Successive events whose intervals are distributed according to this form a memoryless Poisson process. This should be used for repeated network events (e.g. sending a certain type of message) to minimize leaking information to observers.
`rand_uniform_delay`	Return the time point advanced by a uniform random duration.
`rand_uniform_duration`	Generate a uniform random duration in the range from 0 (inclusive) to range (exclusive).
`randbits`	`randbits` overloads
`randbool`	Generate a random boolean.
`randbytes`	`randbytes` overloads
`randrange`	`randrange` overloads

Name	Description
`max`	Largest value the generator can produce.
`min`	Smallest value the generator can produce.

Name	Description
`FlushCache`	Discard any random bits buffered from a previous rand64() call.