public void ToByteArrayAndBackToHex()
        {
            // Arrange
            var originalHex = "61D239E7D679F92B9DECC1F4095BC545";

            // Act
            var byteArray    = CryptographyService.CreateByteArrayFromHexString(originalHex);
            var resultingHex = CryptographyService.CreateHexStringFromByteArray(byteArray);

            // Assert
            Assert.AreEqual(originalHex, resultingHex);
        }