public async void ConfigureSignalR()
{
// Client keys pair
var client_x25519key = _dataEncryptor.CreateX25519EncryptorKey().Key;
// Client public key bytes array
var clientPublicKeyBytes = _dataEncryptor.GetX25519EncryptorPublicKeyBytes(client_x25519key);
var token = GetToken(url);
// SignalR hub url
var stringUri = $"{url}/userNotification";
var options = new HttpConnectionOptions()
{
AccessTokenProvider = () => Task.FromResult(token),
Url = new System.Uri(stringUri),
};
var factory = new HttpConnectionFactory(Options.Create(options), new LoggerFactory());
hubConnection = new HubConnection(factory, new JsonHubProtocol(), null);
hubConnection.On <string>("PublicKeyExchange", keyDTOstring =>
{
// Server public key and nonce bytes
var keyDto = JsonConvert.DeserializeObject <ServerPublicKeyDto>(keyDTOstring);
ReadOnlySpan <byte> nonce = System.Convert.FromBase64String(keyDto.Nonce);
// Create nonce from server nonce bytes
clientEncryptorKey.Nonce = new NSec.Cryptography.Nonce(nonce.Slice(0, 4), nonce.Slice(4));
clientEncryptorKey.Key = _dataEncryptor.CreateAes256GcmSymmetricKey(System.Convert.FromBase64String(keyDto.PublicKey), client_x25519key);
});
await hubConnection.StartAsync();
await hubConnection.InvokeAsync("PublicKeyExchange", System.Convert.ToBase64String(clientPublicKeyBytes));
}
public async void ConfigureSignalR()
{
// Client keys pair
var client_x25519key = _dataEncryptor.CreateX25519EncryptorKey().Key;
// Client public key bytes array
var clientPublicKeyBytes = _dataEncryptor.GetX25519EncryptorPublicKeyBytes(client_x25519key);
// SignalR hub url
var stringUri = $"{url}/userRegistration";
var options = new HttpConnectionOptions()
{
Url = new System.Uri(stringUri),
};
var factory = new HttpConnectionFactory(Options.Create(options), new LoggerFactory());
hubConnection = new HubConnection(factory, new JsonHubProtocol(), null);
await hubConnection.StartAsync();
}