public void Generate_DefaultsToHmacSha1Algorithm()
{
byte[] secretKey = new byte[] { 0 };
DateTime dt = DateTime.Now;
string result1 = TimeBasedOneTimePassword.Generate(secretKey, new HMACSHA1());
string result2 = TimeBasedOneTimePassword.Generate(secretKey);
Assert.AreEqual(result1, result2);
}
public void Generate_YieldsExpectedResults()
{
//Values taken from RFC specification
byte[] secret = Encoding.ASCII.GetBytes("12345678901234567890");
//Item1 is the datetime to generate password for
//Item2 is the expected result
//item3 is the hmac algorithm to use.
List <Tuple <DateTime, string, HMAC> > testValues = new List <Tuple <DateTime, string, HMAC> >()
{
new Tuple <DateTime, string, HMAC>(new DateTime(1970, 1, 1, 0, 0, 59), "94287082", new HMACSHA1()),
new Tuple <DateTime, string, HMAC>(new DateTime(1970, 1, 1, 0, 0, 59), "32247374", new HMACSHA256()),
new Tuple <DateTime, string, HMAC>(new DateTime(1970, 1, 1, 0, 0, 59), "69342147", new HMACSHA512()),
new Tuple <DateTime, string, HMAC>(new DateTime(2005, 3, 18, 1, 58, 29), "07081804", new HMACSHA1()),
new Tuple <DateTime, string, HMAC>(new DateTime(2005, 3, 18, 1, 58, 29), "34756375", new HMACSHA256()),
new Tuple <DateTime, string, HMAC>(new DateTime(2005, 3, 18, 1, 58, 29), "63049338", new HMACSHA512()),
new Tuple <DateTime, string, HMAC>(new DateTime(2005, 3, 18, 1, 58, 31), "14050471", new HMACSHA1()),
new Tuple <DateTime, string, HMAC>(new DateTime(2005, 3, 18, 1, 58, 31), "74584430", new HMACSHA256()),
new Tuple <DateTime, string, HMAC>(new DateTime(2005, 3, 18, 1, 58, 31), "54380122", new HMACSHA512()),
new Tuple <DateTime, string, HMAC>(new DateTime(2009, 2, 13, 23, 31, 30), "89005924", new HMACSHA1()),
new Tuple <DateTime, string, HMAC>(new DateTime(2009, 2, 13, 23, 31, 30), "42829826", new HMACSHA256()),
new Tuple <DateTime, string, HMAC>(new DateTime(2009, 2, 13, 23, 31, 30), "76671578", new HMACSHA512()),
new Tuple <DateTime, string, HMAC>(new DateTime(2033, 5, 18, 3, 33, 20), "69279037", new HMACSHA1()),
new Tuple <DateTime, string, HMAC>(new DateTime(2033, 5, 18, 3, 33, 20), "78428693", new HMACSHA256()),
new Tuple <DateTime, string, HMAC>(new DateTime(2033, 5, 18, 3, 33, 20), "56464532", new HMACSHA512())
};
foreach (var testValue in testValues)
{
string result = TimeBasedOneTimePassword.Generate(secret, testValue.Item3, testValue.Item1, TimeSpan.Zero, TimeBasedOneTimePassword.DEFAULT_TIME_STEP, OneTimePasswordLength.EightDigits);
Assert.AreEqual(result, testValue.Item2.ToString());
}
}
public void Generate_NegativeTimeStepThrowsException()
{
TimeBasedOneTimePassword.Generate(new byte[] { 0 }, new HMACSHA1(), TimeSpan.FromSeconds(0), OneTimePasswordLength.SixDigits);
}
public void Generate_UndefinedHOTPLengthThrowsException()
{
TimeBasedOneTimePassword.Generate(new byte[] { 0 }, new HMACSHA1(), 0);
}
public void Generate_EmptySecretKeyThrowsException()
{
TimeBasedOneTimePassword.Generate(new byte[0], new HMACSHA1());
}
public void Generate_NullSecretKeyThrowsException()
{
TimeBasedOneTimePassword.Generate(null, new HMACSHA1());
}
public void Generate_NullHmacThrowsException()
{
TimeBasedOneTimePassword.Generate(new byte[] { 0 }, null);
}
public void Generate_CanGenerateEightDigitCodes()
{
string result = TimeBasedOneTimePassword.Generate(new byte[] { 0 }, new HMACSHA1(), OneTimePasswordLength.EightDigits);
Assert.IsTrue(result.Length == 8);
}
public void Generate_DefaultsToSixDigitCode()
{
string result = TimeBasedOneTimePassword.Generate(new byte[] { 0 });
Assert.IsTrue(result.Length == 6);
}
