From 152146e782d401aa1ce7d989d62306aabc85f22e Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Fri, 4 Jan 2019 02:00:44 -0800
Subject: DRY: Implement GetRand using FastRandomContext::randrange

---
 src/random.cpp | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

(limited to 'src')

diff --git a/src/random.cpp b/src/random.cpp
index e4c23ceac6..f52b5837aa 100644
--- a/src/random.cpp
+++ b/src/random.cpp
@@ -503,17 +503,7 @@ void RandAddSeedSleep() { ProcRand(nullptr, 0, RNGLevel::SLEEP); }
 
 uint64_t GetRand(uint64_t nMax) noexcept
 {
-    if (nMax == 0)
-        return 0;
-
-    // The range of the random source must be a multiple of the modulus
-    // to give every possible output value an equal possibility
-    uint64_t nRange = (std::numeric_limits<uint64_t>::max() / nMax) * nMax;
-    uint64_t nRand = 0;
-    do {
-        GetRandBytes((unsigned char*)&nRand, sizeof(nRand));
-    } while (nRand >= nRange);
-    return (nRand % nMax);
+    return FastRandomContext().randrange(nMax);
 }
 
 int GetRandInt(int nMax) noexcept
-- 
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