diff --git a/src/bignum/bignum.cpp b/src/bignum/bignum.cpp
index bc9bc87..a4de056 100644
--- a/src/bignum/bignum.cpp
+++ b/src/bignum/bignum.cpp
@@ -34,4 +34,9 @@ Bignum& Bignum::operator=(const Bignum& bignum)
 {
     _u256 = uint256_t(bignum.ToString(NumericBase::Base16).c_str(), 16);
     return *this;
+}
+
+bool Bignum::operator==(const Bignum& c) const
+{
+    return _u256 == c._u256;
 }
\ No newline at end of file
diff --git a/src/bignum/bignum.h b/src/bignum/bignum.h
index c57b19a..603abc8 100644
--- a/src/bignum/bignum.h
+++ b/src/bignum/bignum.h
@@ -42,6 +42,8 @@ class Bignum
 
 	Bignum& operator=(const Bignum& bignum);
 
+	bool operator==(const Bignum& c) const;
+
   private:
 	uint256_t _u256;
 };