private async Task SetKeys(string seedString)
{
if (Keys.Init)
{
return;
}
if (string.IsNullOrEmpty(seedString))
{
throw new WebSocketError("Missing seed", Session.Username);
}
if (Keys.Salts == null)
{
throw new WebSocketError("Missing salts", Session.Username);
}
if (string.IsNullOrEmpty(_seedString))
{
_seedString = seedString;
}
var seed = Convert.FromBase64String(seedString);
Keys.EncryptionKey = AesGcmUtils.ImportKeyFromMaster(seed, Convert.FromBase64String(Keys.Salts.EncryptionKeySalt));
Keys.DhPrivateKey = DiffieHellmanUtils.ImportKeyFromMaster(seed, Convert.FromBase64String(Keys.Salts.DhKeySalt));
Keys.HmacKey = HmacUtils.ImportKeyFromMaster(seed, Convert.FromBase64String(Keys.Salts.HmacKeySalt));
await ValidateKey();
Keys.Init = true;
_resolveConnection?.Invoke();
_connectionResolved = true;
}
