diff options
| -rw-r--r-- | src/random.cpp | 2 | ||||
| -rw-r--r-- | src/random.h | 14 |
2 files changed, 8 insertions, 8 deletions
diff --git a/src/random.cpp b/src/random.cpp index 3e6398f7b4..c78a34ea45 100644 --- a/src/random.cpp +++ b/src/random.cpp @@ -182,7 +182,7 @@ static uint64_t GetRdSeed() noexcept /* Access to other hardware random number generators could be added here later, * assuming it is sufficiently fast (in the order of a few hundred CPU cycles). * Slower sources should probably be invoked separately, and/or only from - * RandAddSeedSleep (which is called during idle background operation). + * RandAddPeriodic (which is called once a minute). */ static void InitHardwareRand() {} static void ReportHardwareRand() {} diff --git a/src/random.h b/src/random.h index 7768f9d3c5..76b3493c5d 100644 --- a/src/random.h +++ b/src/random.h @@ -41,17 +41,17 @@ * These entropy sources are slower, but designed to make sure the RNG state contains * fresh data that is unpredictable to attackers. * - * - RandAddSeedSleep() seeds everything that fast seeding includes, but additionally: - * - A high-precision timestamp before and after sleeping 1ms. - * - (On Windows) Once every 10 minutes, performance monitoring data from the OS. - - - Once every minute, strengthen the entropy for 10 ms using repeated SHA512. - * These just exploit the fact the system is idle to improve the quality of the RNG - * slightly. + * - RandAddPeriodic() seeds everything that fast seeding includes, but additionally: + * - A high-precision timestamp + * - Dynamic environment data (performance monitoring, ...) + * - Strengthen the entropy for 10 ms using repeated SHA512. + * This is run once every minute. * * On first use of the RNG (regardless of what function is called first), all entropy * sources used in the 'slow' seeder are included, but also: * - 256 bits from the hardware RNG (rdseed or rdrand) when available. - * - (On Windows) Performance monitoring data from the OS. + * - Dynamic environment data (performance monitoring, ...) + * - Static environment data * - Strengthen the entropy for 100 ms using repeated SHA512. * * When mixing in new entropy, H = SHA512(entropy || old_rng_state) is computed, and |