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Use sanity check timestamps as entropy

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Pieter Wuille 2017-05-05 11:45:37 -07:00
parent 33f853d8d8
commit 2c0a6f157d
1 changed files with 4 additions and 0 deletions
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4
src/random.cpp
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@ -298,6 +298,10 @@ bool Random_SanityCheck()
uint64_t stop = GetPerformanceCounter(); uint64_t stop = GetPerformanceCounter();
if (stop == start) return false; if (stop == start) return false;
// We called GetPerformanceCounter. Use it as entropy.
RAND_add((const unsigned char*)&start, sizeof(start), 1);
RAND_add((const unsigned char*)&stop, sizeof(stop), 1);
return true; return true;
} }