Use sanity check timestamps as entropy

Cherry-picked from: 2c0a6f1
SirJosh1987 · Jun 18, 2024 · 23bc7a0 · 23bc7a0
1 parent 4a3c6dd
commit 23bc7a0
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/random.cpp b/src/random.cpp
@@ -330,6 +330,10 @@ 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;
 }