private void DoComputeBlake2BMAC(string a_Key, string a_Personalisation, string a_Salt, string a_Data,
string a_ExpectedResult, Int32 a_OutputSizeInBits)
{
IHash LHash, LClone;
Int32 LIdx;
byte[] ActualResult, ActualResultClone, Key, Salt, Personalisation, Data;
Key = Converters.ConvertHexStringToBytes(a_Key);
Personalisation = Converters.ConvertStringToBytes(a_Personalisation, Encoding.UTF8);
// if personalisation length != 16, resize to 16, padding with zeros if necessary
if (Personalisation.Length != 16)
{
Array.Resize(ref Personalisation, 16);
}
Salt = Converters.ConvertHexStringToBytes(a_Salt);
Data = Converters.ConvertStringToBytes(a_Data, Encoding.UTF8);
LHash = HashFactory.Blake2BMAC.CreateBlake2BMAC(Key, Salt, Personalisation, a_OutputSizeInBits);
LHash.Initialize();
for (LIdx = 0; LIdx < Data.Length; LIdx++)
{
LHash.TransformBytes(new byte[] { Data[LIdx] }); // do incremental hashing
}
LClone = LHash.Clone();
ActualResult = LHash.TransformFinal().GetBytes();
ActualResultClone = LClone.TransformFinal().GetBytes();
Assert.AreEqual(a_ExpectedResult,
Converters.ConvertBytesToHexString(ActualResult, false),
String.Format("Expected {0} But got {1}", a_ExpectedResult,
Converters.ConvertBytesToHexString(ActualResult, false)));
if (!ActualResult.SequenceEqual(ActualResultClone))
{
Assert.Fail(String.Format(
"Blake2BMAC mismatch on test vector against a clone, Expected \"{0}\" but got \"{1}\"",
a_ExpectedResult, Converters.ConvertBytesToHexString(ActualResultClone, false)));
}
} // end function DoComputeKMAC128
