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Code Issues Activity

Report amount of data gathered from environment

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This commit is contained in:
Pieter Wuille 2019-11-05 10:54:20 -08:00
parent 64e1e022ce
commit d1c02775aa
2 changed files with 5 additions and 0 deletions
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1
src/crypto/sha512.h
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@ -23,6 +23,7 @@ public:
CSHA512& Write(const unsigned char* data, size_t len);
void Finalize(unsigned char hash[OUTPUT_SIZE]);
CSHA512& Reset();
uint64_t Size() const { return bytes; }
};
#endif // BITCOIN_CRYPTO_SHA512_H

4
src/random.cpp
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@ -525,7 +525,9 @@ static void SeedPeriodic(CSHA512& hasher, RNGState& rng)
SeedTimestamp(hasher);
// Dynamic environment data (performance monitoring, ...)
auto old_size = hasher.Size();
RandAddDynamicEnv(hasher);
LogPrintf("Feeding %i bytes of dynamic environment data into RNG\n", hasher.Size() - old_size);
// Strengthen for 10 ms
SeedStrengthen(hasher, rng, 10000);
@ -540,10 +542,12 @@ static void SeedStartup(CSHA512& hasher, RNGState& rng) noexcept
SeedSlow(hasher);
// Dynamic environment data (performance monitoring, ...)
auto old_size = hasher.Size();
RandAddDynamicEnv(hasher);
// Static environment data
RandAddStaticEnv(hasher);
LogPrintf("Feeding %i bytes of environment data into RNG\n", hasher.Size() - old_size);
// Strengthen for 100 ms
SeedStrengthen(hasher, rng, 100000);