public void ToByteArrayAndBackToHex() { // Arrange var originalHex = "61D239E7D679F92B9DECC1F4095BC545"; // Act var byteArray = CryptographyService.CreateByteArrayFromHexString(originalHex); var resultingHex = CryptographyService.CreateHexStringFromByteArray(byteArray); // Assert Assert.AreEqual(originalHex, resultingHex); }