private bool ValidateAsServer()
{
byte[] Data = new byte[16];
using (RNGCryptoServiceProvider provider = new RNGCryptoServiceProvider())
provider.GetBytes(Data);
string q = string.Join("", Data);
MemoryStream Output;
MemoryStream Input = new MemoryStream(Encoding.UTF8.GetBytes(q));
string SaltString = CryptographicProvider.GetCryptographicallySecureString(32);
byte[] SaltBytes = Encoding.UTF8.GetBytes(SaltString);
byte[] BKey = new byte[32];
byte[] IV = new byte[16];
using (RNGCryptoServiceProvider Provider = new RNGCryptoServiceProvider())
{
Provider.GetBytes(IV);
}
string IVStr = Convert.ToBase64String(IV);
using (SHA256CryptoServiceProvider SHA = new SHA256CryptoServiceProvider())
{
byte[] tmp = SHA.ComputeHash(KeyBytes.Concat(SaltBytes).ToArray());
Array.Copy(tmp, 0, BKey, 0, 16);
Array.Copy(tmp, 0, BKey, 15, 16);
}
using (AesCryptoServiceProvider AES = new AesCryptoServiceProvider())
{
AES.Mode = CipherMode.ECB;
AES.KeySize = 128;
using (ICryptoTransform Encryptor = AES.CreateEncryptor(BKey, IV))
{
Output = new MemoryStream();
CryptoStream Crypto = new CryptoStream(Output, Encryptor, CryptoStreamMode.Write);
Input.Position = 0;
Input.CopyTo(Crypto);
Crypto.FlushFinalBlock();
}
}
string MyToken = Convert.ToBase64String(Output.ToArray());
MutualKeyProtocalValidationRequest MSG = new MutualKeyProtocalValidationRequest()
{
IV = IVStr,
Salt = SaltString,
RawToken = q
};
MutualKeyProtocalValidationResponse resp = Channels["$SnooperSec.MutualKeyProtocal.SignToken"].Query <MutualKeyProtocalValidationResponse>(MSG);
return(resp.Token == MyToken);
}
private Task <object> Validate_Message(Models.SnooperMessage Request)
{
if (IsServer)
{
return(null);
}
MutualKeyProtocalValidationRequest RQ = Request.ReadObject <MutualKeyProtocalValidationRequest>();
MemoryStream Output;
MemoryStream Input = new MemoryStream(Encoding.UTF8.GetBytes(RQ.RawToken));
string SaltString = RQ.Salt;
byte[] SaltBytes = Encoding.UTF8.GetBytes(SaltString);
byte[] BKey = new byte[32];
byte[] IV = Convert.FromBase64String(RQ.IV);
using (SHA256CryptoServiceProvider SHA = new SHA256CryptoServiceProvider())
{
byte[] tmp = SHA.ComputeHash(KeyBytes.Concat(SaltBytes).ToArray());
Array.Copy(tmp, 0, BKey, 0, 16);
Array.Copy(tmp, 0, BKey, 15, 16);
}
using (AesCryptoServiceProvider AES = new AesCryptoServiceProvider())
{
AES.Mode = CipherMode.ECB;
AES.KeySize = 128;
using (ICryptoTransform Encryptor = AES.CreateEncryptor(BKey, IV))
{
Output = new MemoryStream();
CryptoStream Crypto = new CryptoStream(Output, Encryptor, CryptoStreamMode.Write);
Input.Position = 0;
Input.CopyTo(Crypto);
Crypto.FlushFinalBlock();
}
}
string Token = Convert.ToBase64String(Output.ToArray());
return(Task.FromResult((object)new MutualKeyProtocalValidationResponse()
{
Token = Token
}));
}
