2 files changed, 8 insertions, 2 deletions
diff --git a/src/server/shared/Cryptography/BigNumber.cpp b/src/server/shared/Cryptography/BigNumber.cpp
index b68c91001ae..eae92a58ee3 100644
--- a/src/server/shared/Cryptography/BigNumber.cpp
+++ b/src/server/shared/Cryptography/BigNumber.cpp
@@ -164,11 +164,16 @@ uint32 BigNumber::AsDword()
     return (uint32)BN_get_word(_bn);
 }
 
-bool BigNumber::isZero() const
+bool BigNumber::IsZero() const
 {
     return BN_is_zero(_bn);
 }
 
+bool BigNumber::IsNegative() const
+{
+    return BN_is_negative(_bn);
+}
+
 std::unique_ptr<uint8[]> BigNumber::AsByteArray(int32 minSize, bool littleEndian)
 {
     int length = (minSize >= GetNumBytes()) ? minSize : GetNumBytes();
diff --git a/src/server/shared/Cryptography/BigNumber.h b/src/server/shared/Cryptography/BigNumber.h
index df19ba60b71..aebe16021d6 100644
--- a/src/server/shared/Cryptography/BigNumber.h
+++ b/src/server/shared/Cryptography/BigNumber.h
@@ -77,7 +77,8 @@ class BigNumber
             return t %= bn;
         }
 
-        bool isZero() const;
+        bool IsZero() const;
+        bool IsNegative() const;
 
         BigNumber ModExp(BigNumber const& bn1, BigNumber const& bn2);
         BigNumber Exp(BigNumber const&);