Function SeedStrengthen

src/random.cpp:506–514

Extract entropy from rng, strengthen it, and feed it into hasher. */

/** Extract entropy from rng, strengthen it, and feed it into hasher. */
void SeedStrengthen(CSHA512& hasher, RNGState& rng, SteadyClock::duration dur) noexcept
{
    // Generate 32 bytes of entropy from the RNG, and a copy of the entropy already in hasher.
    // Never use the deterministic PRNG for this, as the result is only used internally.
    unsigned char strengthen_seed[32];
    rng.MixExtract(strengthen_seed, sizeof(strengthen_seed), CSHA512(hasher), false, /*always_use_real_rng=*/true);
    // Strengthen the seed, and feed it into hasher.
    Strengthen(strengthen_seed, dur, hasher);
}

void SeedPeriodic(CSHA512& hasher, RNGState& rng) noexcept
{