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authorPieter Wuille <pieter.wuille@gmail.com>2017-05-05 11:45:37 -0700
committerPieter Wuille <pieter.wuille@gmail.com>2017-05-05 11:56:24 -0700
commit2c0a6f157da3c6bb3b0a1e77f003caf0d9cb9d6c (patch)
treed07d700e05c3f9d5ddc889128eea024275af5370 /src/random.cpp
parent33f853d8d88917b145e2793bf8eb1b4e3790e7e7 (diff)
Use sanity check timestamps as entropy
Diffstat (limited to 'src/random.cpp')
-rw-r--r--src/random.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/random.cpp b/src/random.cpp
index 8107cb3105..805d7d3872 100644
--- a/src/random.cpp
+++ b/src/random.cpp
@@ -298,6 +298,10 @@ bool Random_SanityCheck()
uint64_t stop = GetPerformanceCounter();
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;
}