private async void nfcService_MessageReceivedCompleted(ProximityMessage message)
{
switch (message.MessageType)
{
case NFC_IBCS:
{
PeerFinder.TriggeredConnectionStateChanged += TriggeredConnectionStateChanged;
PeerFinder.Start();
nfcService.UnsubscribeForMessage(NFC_IBCS);
break;
}
case NFC_IBCS_ACK:
{
nfcService.UnsubscribeForMessage(NFC_IBCS_ACK);
identity = message.DataAsString;
nfcService.PublishTextMessage(NFC_IBCS_ACK, (string)settingsService.Get("email"));
aes.GenerateKey();
ct = await bfService.CipherMessage(aes.Key, message.DataAsString, (SerializedPrivateKey)settingsService.Get("private"));
nfcService.PublishTextMessage(NFC_IBCS_KEY, ct);
break;
}
case NFC_IBCS_KEY:
{
byte[] pt = await bfService.DecipherMessage(message.DataAsString, (SerializedPrivateKey)settingsService.Get("private"));
byte[] newKey = BFUtil.Xor(aes.Key, pt);
aes.Key = newKey;
nfcService.UnsubscribeForMessage(NFC_IBCS_KEY);
if (NfcPairingCompleted != null)
{
NfcPairingCompleted();
}
break;
}
}
}
