public byte[] Generate(byte[] agreed)
{
IMac prfMac;
if (prfAlgorithm == FipsPrfAlgorithm.AesCMac)
{
Internal.IBlockCipher aesEng = FipsAes.ENGINE_PROVIDER.CreateEngine(EngineUsage.GENERAL);
aesEng.Init(true, new KeyParameter(salt ?? new byte[16]));
prfMac = new CMac(aesEng);
prfMac.Init(null);
}
else
{
prfMac = FipsShs.CreateHmac((DigestAlgorithm)prfAlgorithm.BaseAlgorithm);
prfMac.Init(new KeyParameter(salt ?? new byte[((HMac)prfMac).GetUnderlyingDigest().GetByteLength()]));
}
byte[] mac = Macs.DoFinal(prfMac, agreed, 0, agreed.Length);
// ZEROIZE
Arrays.Fill(agreed, (byte)0);
return(mac);
}
public bool HasTestPassed(EngineProvider provider)
{
byte[] input16 = Hex.Decode("6bc1bee22e409f96e93d7e117393172a");
byte[] output_k128_m16 = Hex.Decode("c0b9bbee139722ab");
IMac mac = new CMac(provider.CreateEngine(EngineUsage.GENERAL), 64);
//128 bytes key
KeyParameter key = new KeyParameter(Hex.Decode("0102020404070708080b0b0d0d0e0e101013131515161619"));
byte[] output = Macs.DoFinal(mac, key, input16, 0, input16.Length);
return(Arrays.AreEqual(FipsKats.Values[FipsKats.Vec.TripleDesCMacTag], output));
}
public bool HasTestPassed(EngineProvider provider)
{
byte[] keyBytes128 = Hex.Decode("2b7e151628aed2a6abf7158809cf4f3c");
byte[] input16 = Hex.Decode("6bc1bee22e409f96e93d7e117393172a");
byte[] output_k128_m16 = Hex.Decode("070a16b46b4d4144f79bdd9dd04a287c");
IMac mac = new CMac(provider.CreateEngine(EngineUsage.GENERAL), 128);
//128 bits key
KeyParameter key = new KeyParameter(keyBytes128);
byte[] output = Macs.DoFinal(mac, key, input16, 0, input16.Length);
return(Arrays.AreEqual(FipsKats.Values[FipsKats.Vec.AesCMacTag], output));
}
private static byte[] CalculateAssemblyHMac()
{
Assembly assembly = Assembly.GetExecutingAssembly();
Check(assembly.GetModules().Length == 1);
string path = assembly.ManifestModule.FullyQualifiedName;
byte[] data = File.ReadAllBytes(path);
IMac mac = new HMac(new Sha512Digest());
mac.Init(new KeyParameter(MacKey));
int macPos;
var ranges = AnalyzePEData(data, out macPos);
Check(macPos >= 0);
int pos = 0;
foreach (var range in ranges)
{
if (pos < range.Start)
{
mac.BlockUpdate(data, pos, range.Start - pos);
}
if (range.Data != null)
{
mac.BlockUpdate(range.Data, 0, range.Data.Length);
}
int rangeEnd = range.Start + range.Length;
if (pos < rangeEnd)
{
pos = rangeEnd;
}
}
if (pos < data.Length)
{
mac.BlockUpdate(data, pos, data.Length - pos);
}
return(Macs.DoFinal(mac));
}
public byte[] Collect()
{
return(Macs.DoFinal(mac));
}
public bool HasTestPassed(IMac hMac)
{
byte[] result = Macs.DoFinal(hMac, new KeyParameter(key), stdHMacVector, 0, stdHMacVector.Length);
return(Arrays.AreEqual(result, kat));
}