Crypt::Random::TESHA2 generate random numbers using entropy gathered from
timer/scheduler jitter. This can be used to generate non-pseudorandom data
to seed a PRNG (e.g. srand/rand, Math::Random::MT, etc.) or CSPRNG (e.g. AES-CTR
or Math::Random::ISAAC). You may use it directly or as part of a random source
module that first checks for O/S randomness sources.