Module nanorand::entropy

Sources for obtaining entropy.

Functions

backup

A backup entropy source, trying rdseed first, and if it fails or does not complete, combining it with or using system time-based entropy generation.

rdseed

An rdseed-based entropy source. Only works on x86/x86_64 platforms where the rdseed instructions are available. Returns None if rdseed is not available. Returns Some if it successfully managed to pull some bytes. VERY unreliable.

system

Pull in system entropy using the getrandom crate. Uses backup entropy (rdseed and system time) if it fails.