From a858e5b440902ec25dbb97c555eef35e12fbf69c Mon Sep 17 00:00:00 2001
From: Marcel Keller <mks.keller@gmail.com>
Date: Thu, 21 Apr 2022 18:29:27 +0200
Subject: [PATCH] Security bug in homomorphic encryption parameter generation.

---
 FHE/NoiseBounds.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/FHE/NoiseBounds.cpp b/FHE/NoiseBounds.cpp
index a1fe3e033..e2df9583f 100644
--- a/FHE/NoiseBounds.cpp
+++ b/FHE/NoiseBounds.cpp
@@ -105,7 +105,7 @@ void SemiHomomorphicNoiseBounds::produce_epsilon_constants()
         {
             tp *= t;
             double lgtp = log(tp) / log(2.0);
-            if (C[i] < 0 && lgtp < FHE_epsilon)
+            if (C[i] < 0 && lgtp < -FHE_epsilon)
             {
                 C[i] = pow(x, i);
             }