// https://csharp.hotexamples.com/examples/Org.BouncyCastle.Crypto.Macs/Poly1305/BlockUpdate/php-poly1305-blockupdate-method-examples.html
public static void Poly1305AES()
{
Org.BouncyCastle.Crypto.IMac mac = new Org.BouncyCastle.Crypto.Macs.Poly1305(new Org.BouncyCastle.Crypto.Engines.AesEngine());
byte[] key = null;
byte[] n = new byte[16];
byte[] input = System.Text.Encoding.UTF8.GetBytes("Hello World!");
byte[] output = new byte[mac.GetMacSize()];
for (int loop = 0; loop < 13; loop++)
{
mac.Init(new Org.BouncyCastle.Crypto.Parameters.ParametersWithIV(new Org.BouncyCastle.Crypto.Parameters.KeyParameter(key), n));
mac.BlockUpdate(input, 0, input.Length);
mac.DoFinal(output, 0);
}
}
private void Poly1305CheckHash(byte[] keyMaterial, byte[] input, byte[] tag)
{
Org.BouncyCastle.Crypto.Macs.Poly1305 poly1305 = new Org.BouncyCastle.Crypto.Macs.Poly1305();
poly1305.Init(new Org.BouncyCastle.Crypto.Parameters.KeyParameter(keyMaterial));
poly1305.BlockUpdate(input, 0, input.Length);
byte[] mac = new byte[poly1305.GetMacSize()];
poly1305.DoFinal(mac, 0);
if (!Org.BouncyCastle.Utilities.Arrays.AreEqual(tag, mac))
{
System.Console.WriteLine("fail");
// Fail("rfc7539", Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(tag), Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(mac));
}
}
} // End Function Sha3
// https://www.programcreek.com/java-api-examples/index.php?api=org.bouncycastle.crypto.engines.SerpentEngine
// https://stackoverflow.com/questions/9806012/multiple-encryption-with-bouncycastle
public static void Poly1305Tests()
{
// https://www.programcreek.com/java-api-examples/index.php?api=org.bouncycastle.crypto.engines.TwofishEngine
var poly = new Org.BouncyCastle.Crypto.Macs.Poly1305(new Org.BouncyCastle.Crypto.Engines.SerpentEngine());
poly.Init(null);
var se = new Org.BouncyCastle.Crypto.Engines.Salsa20Engine();
var pwiv = new Org.BouncyCastle.Crypto.Parameters.ParametersWithIV(
new Org.BouncyCastle.Crypto.Parameters.KeyParameter(new byte[16])
, new byte[8]
);
// https://en.wikipedia.org/wiki/Salsa20
var xse = new Org.BouncyCastle.Crypto.Engines.XSalsa20Engine();
var xsekp = new Org.BouncyCastle.Crypto.Parameters.ParametersWithIV(
new Org.BouncyCastle.Crypto.Parameters.KeyParameter(new byte[32])
, new byte[24]
);
var engine = new Org.BouncyCastle.Crypto.Engines.RC4Engine();
byte[] key = System.Text.Encoding.UTF8.GetBytes("foobar");
engine.Init(true, new Org.BouncyCastle.Crypto.Parameters.KeyParameter(key));
Org.BouncyCastle.Crypto.Engines.TwofishEngine twofish = new Org.BouncyCastle.Crypto.Engines.TwofishEngine();
twofish.Init(true, new Org.BouncyCastle.Crypto.Parameters.KeyParameter(key));
new Org.BouncyCastle.Crypto.Engines.ThreefishEngine(1024);
Org.BouncyCastle.Crypto.BufferedBlockCipher cipher =
new Org.BouncyCastle.Crypto.BufferedBlockCipher(new Org.BouncyCastle.Crypto.Engines.TwofishEngine());
}
