private void testSequential()
{
// Sequential test, adapted from test-poly1305aes
int len;
byte[] kr = new byte[32];
byte[] m = new byte[MAXLEN];
byte[] n = new byte[16];
byte[] output = new byte[16];
int c = 0;
IMac mac = new Poly1305(new AesFastEngine());
for (int loop = 0; loop < 13; loop++)
{
len = 0;
for (;;)
{
c++;
mac.Init(new ParametersWithIV(new KeyParameter(kr), n));
mac.BlockUpdate(m, 0, len);
mac.DoFinal(output, 0);
// if (c == 678)
// {
// TestCase tc = CASES[0];
//
// if (!Arrays.AreEqual(tc.key, kr))
// {
// System.err.println("Key bad");
// System.err.println(Hex.ToHexString(tc.key)));
// System.err.println(Hex.ToHexString(kr)));
// System.exit(1);
// }
// if (!Arrays.AreEqual(tc.nonce, n))
// {
// System.err.println("Nonce bad");
// System.exit(1);
// }
// System.out.printf("[%d] m: %s\n", c, Hex.ToHexString(m, 0, len)));
// System.out.printf("[%d] K: %s\n", c, new string(Hex.encodje(kr)));
// System.out.printf("[%d] N: %s\n", c, Hex.ToHexString(n)));
// System.out.printf("[%d] M: ", c);
// }
// System.out.printf("%d/%s\n", c, Hex.ToHexString(out)));
if (len >= MAXLEN)
{
break;
}
n[0] = (byte)(n[0] ^ loop);
for (int i = 0; i < 16; ++i)
{
n[i] ^= output[i];
}
if (len % 2 != 0)
{
for (int i = 0; i < 16; ++i)
{
kr[i] ^= output[i];
}
}
if (len % 3 != 0)
{
for (int i = 0; i < 16; ++i)
{
kr[i + 16] ^= output[i];
}
}
Poly1305KeyGenerator.Clamp(kr);
m[len++] ^= output[0];
}
}
// Output after 13 loops as generated by poly1305 ref
if (c != 13013 || !Arrays.AreEqual(output, Hex.Decode("c96f60a23701a5b0fd2016f58cbe4f7e")))
{
Fail("Sequential Poly1305 " + c, "c96f60a23701a5b0fd2016f58cbe4f7e", Hex.ToHexString(output));
}
}
public void VerifyMacWhenKeyLengthIsLessThan32Fails()
{
// Arrange, Act & Assert
Assert.Throws <CryptographicException>(() => Poly1305.VerifyMac(new byte[Poly1305.MAC_KEY_SIZE_IN_BYTES - 1], new byte[0], new byte[0]));
}
public static int CryptoOnetimeauth(byte[] Outv, int Outvoffset, byte[] Inv, int Invoffset, long Inlen, byte[] K)
{
int j;
int[] r = new int[17];
int[] h = new int[17];
int[] c = new int[17];
r[0] = K[0] & 0xFF;
r[1] = K[1] & 0xFF;
r[2] = K[2] & 0xFF;
r[3] = K[3] & 15;
r[4] = K[4] & 252;
r[5] = K[5] & 0xFF;
r[6] = K[6] & 0xFF;
r[7] = K[7] & 15;
r[8] = K[8] & 252;
r[9] = K[9] & 0xFF;
r[10] = K[10] & 0xFF;
r[11] = K[11] & 15;
r[12] = K[12] & 252;
r[13] = K[13] & 0xFF;
r[14] = K[14] & 0xFF;
r[15] = K[15] & 15;
r[16] = 0;
for (j = 0; j < 17; ++j)
{
h[j] = 0;
}
while (Inlen > 0)
{
for (j = 0; j < 17; ++j)
{
c[j] = 0;
}
for (j = 0; j < 16 && j < Inlen; ++j)
{
c[j] = Inv[Invoffset + j] & 0xff;
}
c[j] = 1;
Invoffset += j;
Inlen -= j;
Poly1305.Add(h, c);
Poly1305.Mulmod(h, r);
}
Poly1305.Freeze(h);
for (j = 0; j < 16; ++j)
{
c[j] = K[j + 16] & 0xFF;
}
c[16] = 0;
Poly1305.Add(h, c);
for (j = 0; j < 16; ++j)
{
Outv[j + Outvoffset] = (byte)h[j];
}
return(0);
}
public void Compute()
{
var mac = new byte[Poly1305.MAC_TAG_SIZE_IN_BYTES];
Poly1305.ComputeMac(key.Span, data.Span, mac);
}
public void ComputeMacWhenKeyLengthIsGreaterThan32Fails()
{
// Arrange, Act & Assert
Assert.Throws <CryptographicException>(() => Poly1305.ComputeMac(new byte[Poly1305.MAC_KEY_SIZE_IN_BYTES + 1], new byte[0]));
}
private void WriteLE(Poly1305 mac, int length)
{
var s = Utils.ToBytes((ulong)length, true);
mac.BlockUpdate(s, 0, 8);
}
protected /*virtual */ void UpdateRecordMacLength(Poly1305 mac, int len)
{
byte[] longLen = Pack.UInt64_To_LE((ulong)len);
mac.BlockUpdate(longLen, 0, longLen.Length);
}
public byte[] Compute() => Poly1305.ComputeMac(key, data);
public void VerifyFails()
{
var key = new Key(1, 0, 0, 0, 0, 0, 0, 0);
Assert.False(Poly1305.Verify(new byte[] { 1 }, 0, 1, in key, default));
}
public static void SelfTest()
{
byte[] key = new byte[] {
0x1c, 0x92, 0x40, 0xa5, 0xeb, 0x55, 0xd3, 0x8a, 0xf3, 0x33, 0x88, 0x86, 0x04, 0xf6, 0xb5, 0xf0,
0x47, 0x39, 0x17, 0xc1, 0x40, 0x2b, 0x80, 0x09, 0x9d, 0xca, 0x5c, 0xbc, 0x20, 0x70, 0x75, 0xc0
};
byte[] nonce = new byte[] {
0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
};
byte[] cipherText = new byte[] {
0x64, 0xa0, 0x86, 0x15, 0x75, 0x86, 0x1a, 0xf4, 0x60, 0xf0, 0x62, 0xc7, 0x9b, 0xe6, 0x43, 0xbd,
0x5e, 0x80, 0x5c, 0xfd, 0x34, 0x5c, 0xf3, 0x89, 0xf1, 0x08, 0x67, 0x0a, 0xc7, 0x6c, 0x8c, 0xb2,
0x4c, 0x6c, 0xfc, 0x18, 0x75, 0x5d, 0x43, 0xee, 0xa0, 0x9e, 0xe9, 0x4e, 0x38, 0x2d, 0x26, 0xb0,
0xbd, 0xb7, 0xb7, 0x3c, 0x32, 0x1b, 0x01, 0x00, 0xd4, 0xf0, 0x3b, 0x7f, 0x35, 0x58, 0x94, 0xcf,
0x33, 0x2f, 0x83, 0x0e, 0x71, 0x0b, 0x97, 0xce, 0x98, 0xc8, 0xa8, 0x4a, 0xbd, 0x0b, 0x94, 0x81,
0x14, 0xad, 0x17, 0x6e, 0x00, 0x8d, 0x33, 0xbd, 0x60, 0xf9, 0x82, 0xb1, 0xff, 0x37, 0xc8, 0x55,
0x97, 0x97, 0xa0, 0x6e, 0xf4, 0xf0, 0xef, 0x61, 0xc1, 0x86, 0x32, 0x4e, 0x2b, 0x35, 0x06, 0x38,
0x36, 0x06, 0x90, 0x7b, 0x6a, 0x7c, 0x02, 0xb0, 0xf9, 0xf6, 0x15, 0x7b, 0x53, 0xc8, 0x67, 0xe4,
0xb9, 0x16, 0x6c, 0x76, 0x7b, 0x80, 0x4d, 0x46, 0xa5, 0x9b, 0x52, 0x16, 0xcd, 0xe7, 0xa4, 0xe9,
0x90, 0x40, 0xc5, 0xa4, 0x04, 0x33, 0x22, 0x5e, 0xe2, 0x82, 0xa1, 0xb0, 0xa0, 0x6c, 0x52, 0x3e,
0xaf, 0x45, 0x34, 0xd7, 0xf8, 0x3f, 0xa1, 0x15, 0x5b, 0x00, 0x47, 0x71, 0x8c, 0xbc, 0x54, 0x6a,
0x0d, 0x07, 0x2b, 0x04, 0xb3, 0x56, 0x4e, 0xea, 0x1b, 0x42, 0x22, 0x73, 0xf5, 0x48, 0x27, 0x1a,
0x0b, 0xb2, 0x31, 0x60, 0x53, 0xfa, 0x76, 0x99, 0x19, 0x55, 0xeb, 0xd6, 0x31, 0x59, 0x43, 0x4e,
0xce, 0xbb, 0x4e, 0x46, 0x6d, 0xae, 0x5a, 0x10, 0x73, 0xa6, 0x72, 0x76, 0x27, 0x09, 0x7a, 0x10,
0x49, 0xe6, 0x17, 0xd9, 0x1d, 0x36, 0x10, 0x94, 0xfa, 0x68, 0xf0, 0xff, 0x77, 0x98, 0x71, 0x30,
0x30, 0x5b, 0xea, 0xba, 0x2e, 0xda, 0x04, 0xdf, 0x99, 0x7b, 0x71, 0x4d, 0x6c, 0x6f, 0x2c, 0x29,
0xa6, 0xad, 0x5c, 0xb4, 0x02, 0x2b, 0x02, 0x70, 0x9b,
0xee, 0xad, 0x9d, 0x67, 0x89, 0x0c, 0xbb, 0x22, 0x39, 0x23, 0x36, 0xfe, 0xa1, 0x85, 0x1f, 0x38
};
byte[] aad = new byte[] {
0xf3, 0x33, 0x88, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4e, 0x91
};
byte[] plainText = new byte[] {
0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2d, 0x44, 0x72, 0x61, 0x66, 0x74, 0x73, 0x20,
0x61, 0x72, 0x65, 0x20, 0x64, 0x72, 0x61, 0x66, 0x74, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65,
0x6e, 0x74, 0x73, 0x20, 0x76, 0x61, 0x6c, 0x69, 0x64, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x61, 0x20,
0x6d, 0x61, 0x78, 0x69, 0x6d, 0x75, 0x6d, 0x20, 0x6f, 0x66, 0x20, 0x73, 0x69, 0x78, 0x20, 0x6d,
0x6f, 0x6e, 0x74, 0x68, 0x73, 0x20, 0x61, 0x6e, 0x64, 0x20, 0x6d, 0x61, 0x79, 0x20, 0x62, 0x65,
0x20, 0x75, 0x70, 0x64, 0x61, 0x74, 0x65, 0x64, 0x2c, 0x20, 0x72, 0x65, 0x70, 0x6c, 0x61, 0x63,
0x65, 0x64, 0x2c, 0x20, 0x6f, 0x72, 0x20, 0x6f, 0x62, 0x73, 0x6f, 0x6c, 0x65, 0x74, 0x65, 0x64,
0x20, 0x62, 0x79, 0x20, 0x6f, 0x74, 0x68, 0x65, 0x72, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65,
0x6e, 0x74, 0x73, 0x20, 0x61, 0x74, 0x20, 0x61, 0x6e, 0x79, 0x20, 0x74, 0x69, 0x6d, 0x65, 0x2e,
0x20, 0x49, 0x74, 0x20, 0x69, 0x73, 0x20, 0x69, 0x6e, 0x61, 0x70, 0x70, 0x72, 0x6f, 0x70, 0x72,
0x69, 0x61, 0x74, 0x65, 0x20, 0x74, 0x6f, 0x20, 0x75, 0x73, 0x65, 0x20, 0x49, 0x6e, 0x74, 0x65,
0x72, 0x6e, 0x65, 0x74, 0x2d, 0x44, 0x72, 0x61, 0x66, 0x74, 0x73, 0x20, 0x61, 0x73, 0x20, 0x72,
0x65, 0x66, 0x65, 0x72, 0x65, 0x6e, 0x63, 0x65, 0x20, 0x6d, 0x61, 0x74, 0x65, 0x72, 0x69, 0x61,
0x6c, 0x20, 0x6f, 0x72, 0x20, 0x74, 0x6f, 0x20, 0x63, 0x69, 0x74, 0x65, 0x20, 0x74, 0x68, 0x65,
0x6d, 0x20, 0x6f, 0x74, 0x68, 0x65, 0x72, 0x20, 0x74, 0x68, 0x61, 0x6e, 0x20, 0x61, 0x73, 0x20,
0x2f, 0xe2, 0x80, 0x9c, 0x77, 0x6f, 0x72, 0x6b, 0x20, 0x69, 0x6e, 0x20, 0x70, 0x72, 0x6f, 0x67,
0x72, 0x65, 0x73, 0x73, 0x2e, 0x2f, 0xe2, 0x80, 0x9d
};
Poly1305 p = new Poly1305();
byte[] pKey = new byte[] { 0x85, 0xd6, 0xbe, 0x78, 0x57, 0x55, 0x6d, 0x33, 0x7f, 0x44, 0x52, 0xfe, 0x42, 0xd5, 0x06, 0xa8, 0x01, 0x03, 0x80, 0x8a, 0xfb, 0x0d, 0xb2, 0xfd, 0x4a, 0xbf, 0xf6, 0xaf, 0x41, 0x49, 0xf5, 0x1b };
KeyParameter paramsX = new KeyParameter(pKey);
p.Init(paramsX);
byte[] msg = Encoding.ASCII.GetBytes("Cryptographic Forum Research Group");
p.BlockUpdate(msg, 0, msg.Length);
byte[] output = new byte[30];
p.DoFinal(output, 0);
ChaCha20Poly1305 cipher = new ChaCha20Poly1305();
KeyParameter contentKey = new KeyParameter(key);
AeadParameters parameters = new AeadParameters(contentKey, 128, nonce, aad);
cipher.Init(true, parameters);
byte[] C = new byte[cipher.GetOutputSize(plainText.Length)];
int len = cipher.ProcessBytes(plainText, 0, plainText.Length, C, 0);
len += cipher.DoFinal(C, len);
}