public void VerificationOfExampleValues()
{
const string signingString = "10000GBP2007-10-20Internet Order 123454aD37dJATestMerchant2007-10-11T11:00:00Z";
const string sharedSecret = "Kah942*$7sdp0)";
const string expectedHmac = "x58ZcRVL1H6y+XSeBGrySJ9ACVo=";
var calculator = new HmacCalculator(sharedSecret);
var mac = calculator.Execute(signingString);
Assert.AreEqual(expectedHmac, mac);
// Recalculate
mac = calculator.Execute(signingString);
Assert.AreEqual(expectedHmac, mac);
// Recalculate with tampered data
mac = calculator.Execute(signingString + "EVIL!");
Assert.AreNotEqual(expectedHmac, mac);
}
public void VerificationOfExampleNumberTwo()
{
const string signingString = "AUTHORISED1211992213193029Internet Order 123454aD37dJA";
const string sharedSecret = "Kah942*$7sdp0)";
const string expectedHmac = "ytt3QxWoEhAskUzUne0P5VA9lPw=";
var calculator = new HmacCalculator(sharedSecret);
var mac = calculator.Execute(signingString);
Assert.AreEqual(expectedHmac, mac);
}
