private NetMQCertificate(byte[] key, bool isSecret)
{
if (key.Length != 32)
{
throw new ArgumentException("key must be 32 bytes length");
}
if (isSecret)
{
SecretKey = key;
PublicKey = Curve25519.ScalarMultiplicationBase(key);
}
else
{
PublicKey = key;
}
}
public void Curve25519Test1()
{
byte[] alicesk = new byte[]
{
0x77, 0x07, 0x6d, 0x0a, 0x73, 0x18, 0xa5, 0x7d, 0x3c, 0x16, 0xc1,
0x72, 0x51, 0xb2, 0x66, 0x45, 0xdf, 0x4c, 0x2f, 0x87, 0xeb, 0xc0,
0x99, 0x2a, 0xb1, 0x77, 0xfb, 0xa5, 0x1d, 0xb9, 0x2c, 0x2a
};
byte[] bobsk = new byte[]
{
0x5d, 0xab, 0x08, 0x7e, 0x62, 0x4a, 0x8a, 0x4b, 0x79, 0xe1, 0x7f,
0x8b, 0x83, 0x80, 0x0e, 0xe6, 0x6f, 0x3b, 0xb1, 0x29, 0x26, 0x18,
0xb6, 0xfd, 0x1c, 0x2f, 0x8b, 0x27, 0xff, 0x88, 0xe0, 0xeb
};
var alicepk = new byte[32];
var bobpk = new byte[32];
Curve25519.ScalarMultiplicationBase(alicepk, alicesk);
Assert.AreEqual(
FromHex("8520f0098930a754748b7ddcb43ef75a0dbf3a0d26381af4eba4a98eaa9b4e6a"),
alicepk);
Curve25519.ScalarMultiplicationBase(bobpk, bobsk);
Assert.AreEqual(
FromHex("de9edb7d7b7dc1b4d35b61c2ece435373f8343c85b78674dadfc7e146f882b4f"),
bobpk);
var key1 = new byte[32];
Curve25519.ScalarMultiplication(key1, alicesk, bobpk);
var key2 = new byte[32];
Curve25519.ScalarMultiplication(key2, bobsk, alicepk);
Assert.AreEqual(key1, key2);
Assert.AreEqual(
FromHex("4a5d9d5ba4ce2de1728e3bf480350f25e07e21c947d19e3376f09b3c1e161742"),
key1
);
}
protected override async ValueTask InitializeAsync()
{
IPEndPoint = IPEndPoint.Parse(Options.CurrentValue.DNSCryptStamp.Address);
SecretKey = Random.Generate(32);
PublicKey = Curve25519.ScalarMultiplicationBase(SecretKey);
var Query = new Message()
{
ID = BitConverter.ToUInt16(Random.Generate(2)),
MessageType = MessageType.Query,
Truncated = false,
CheckingDisabled = true,
RecursionDesired = true,
Questions = new List <IQuestion>()
{
new Question()
{
Type = RecordType.TXT,
Class = RecordClass.Internet,
Domain = Domain.FromString(Options.CurrentValue.DNSCryptStamp.ProviderName)
}
}
};
var RawQuery = DnSerializer.Serialize(Query);
using var Socket = new Socket(SocketType.Dgram, ProtocolType.Udp)
{
ReceiveTimeout = (int)Options.CurrentValue.Timeout.TotalMilliseconds,
SendTimeout = (int)Options.CurrentValue.Timeout.TotalMilliseconds
};
await Socket.ConnectAsync(IPEndPoint);
await Socket.SendAsync(RawQuery, SocketFlags.None);
var RawAnswer = new byte[1024];
var Size = await Socket.ReceiveAsync(RawAnswer, SocketFlags.None);
RawAnswer = RawAnswer[..Size];
private NetMQCertificate(string keystr, bool isSecret)
{
if (keystr.Length != 40)
{
throw new ArgumentException("key must be 40 bytes length");
}
var key = Z85Decode(keystr);
if (isSecret)
{
SecretKey = key;
PublicKey = Curve25519.ScalarMultiplicationBase(key);
}
else
{
PublicKey = key;
}
}