internal override void Evaluate(EngineProvider provider)
{
byte[] K = Hex.Decode("404142434445464748494a4b4c4d4e4f");
byte[] N = Hex.Decode("10111213141516");
byte[] A = Hex.Decode("0001020304050607");
byte[] P = Hex.Decode("20212223");
byte[] C = Hex.Decode("7162015b4dac255d");
byte[] T = Hex.Decode("6084341b");
CcmBlockCipher encCipher = new CcmBlockCipher(provider.CreateEngine(EngineUsage.GENERAL));
CcmBlockCipher decCipher = new CcmBlockCipher(provider.CreateEngine(EngineUsage.GENERAL));
int macSize = T.Length * 8;
KeyParameter keyParam = new KeyParameter(K);
encCipher.Init(true, new AeadParameters(keyParam, macSize, N, A));
byte[] enc = new byte[C.Length];
int len = encCipher.ProcessBytes(P, 0, P.Length, enc, 0);
encCipher.DoFinal(enc, len);
if (!Arrays.AreEqual(FipsKats.Values[FipsKats.Vec.AesCcmEnc], enc))
{
Fail("encrypted stream fails to match in self test");
}
if (!Arrays.AreEqual(FipsKats.Values[FipsKats.Vec.AesCcmEncTag], encCipher.GetMac()))
{
Fail("MAC fails to match in self test encrypt");
}
decCipher.Init(false, new AeadParameters(keyParam, macSize, N, A));
byte[] tmp = new byte[enc.Length];
len = decCipher.ProcessBytes(enc, 0, enc.Length, tmp, 0);
len += decCipher.DoFinal(tmp, len);
byte[] dec = new byte[len];
Array.Copy(tmp, 0, dec, 0, len);
if (!Arrays.AreEqual(FipsKats.Values[FipsKats.Vec.AesCcmDec], dec))
{
Fail("decrypted stream fails to match in self test");
}
if (!Arrays.AreEqual(FipsKats.Values[FipsKats.Vec.AesCcmDecTag], decCipher.GetMac()))
{
Fail("MAC fails to match in self test");
}
}
private void checkVectors(
int count,
CcmBlockCipher ccm,
byte[] k,
int macSize,
byte[] n,
byte[] a,
byte[] p,
byte[] t,
byte[] c)
{
ccm.Init(true, new AeadParameters(new KeyParameter(k), macSize, n, a));
byte[] enc = new byte[c.Length];
int len = ccm.ProcessBytes(p, 0, p.Length, enc, 0);
len += ccm.DoFinal(enc, len);
// ccm.Init(true, new CcmParameters(new KeyParameter(k), macSize, n, a));
//
// byte[] enc = ccm.ProcessPacket(p, 0, p.Length);
if (!AreEqual(c, enc))
{
Fail("encrypted stream fails to match in test " + count);
}
// ccm.Init(false, new CcmParameters(new KeyParameter(k), macSize, n, a));
//
// byte[] dec = ccm.ProcessPacket(enc, 0, enc.Length);
ccm.Init(false, new AeadParameters(new KeyParameter(k), macSize, n, a));
byte[] tmp = new byte[enc.Length];
len = ccm.ProcessBytes(enc, 0, enc.Length, tmp, 0);
len += ccm.DoFinal(tmp, len);
byte[] dec = new byte[len];
Array.Copy(tmp, 0, dec, 0, len);
if (!AreEqual(p, dec))
{
Fail("decrypted stream fails to match in test " + count);
}
if (!AreEqual(t, ccm.GetMac()))
{
Fail("MAC fails to match in test " + count);
}
}
private void checkVectors(
int count,
CcmBlockCipher ccm,
string additionalDataType,
byte[] k,
int macSize,
byte[] n,
byte[] a,
byte[] sa,
byte[] p,
byte[] t,
byte[] c)
{
KeyParameter keyParam = (k == null) ? null : new KeyParameter(k);
ccm.Init(true, new AeadParameters(keyParam, macSize, n, a));
byte[] enc = new byte[c.Length];
if (sa != null)
{
ccm.ProcessAadBytes(sa, 0, sa.Length);
}
int len = ccm.ProcessBytes(p, 0, p.Length, enc, 0);
len += ccm.DoFinal(enc, len);
// ccm.Init(true, new AeadParameters(new KeyParameter(k), macSize, n, a));
//
// byte[] enc = ccm.ProcessPacket(p, 0, p.Length);
if (!AreEqual(c, enc))
{
Fail("encrypted stream fails to match in test " + count + " with " + additionalDataType);
}
// ccm.Init(false, new AeadParameters(new KeyParameter(k), macSize, n, a));
//
// byte[] dec = ccm.ProcessPacket(enc, 0, enc.Length);
ccm.Init(false, new AeadParameters(new KeyParameter(k), macSize, n, a));
byte[] tmp = new byte[enc.Length];
if (sa != null)
{
ccm.ProcessAadBytes(sa, 0, sa.Length);
}
len = ccm.ProcessBytes(enc, 0, enc.Length, tmp, 0);
len += ccm.DoFinal(tmp, len);
byte[] dec = new byte[len];
Array.Copy(tmp, 0, dec, 0, len);
if (!AreEqual(p, dec))
{
Fail("decrypted stream fails to match in test " + count + " with " + additionalDataType,
Hex.ToHexString(p), Hex.ToHexString(dec));
}
if (!AreEqual(t, ccm.GetMac()))
{
Fail("MAC fails to match in test " + count + " with " + additionalDataType);
}
}
