Is a StreamSocket client compatible to openssl-enabled server?

Question

Hi,

I'm wondering if a client using StreamSocket class could connect to a server running openssl via TCP? Does a call of ConnectAsyc() take care of ssl stuffs like handshake etc.? I have no experience on StreamSocket, but I assume it follows the standard SSL protocol. Could anybody confirm my assumption? Also about DatagramSocket, I assume it's fully compatible to BSD UDP socket or winsock, i.e., a client using DatagramSocket could talk to a server running BSD socket or winsock.  Am I right?

Thanks!

Answer 1

Hi,

I think this thread can help you.
http://social.msdn.microsoft.com/Forums/en-US/winappswithnativecode/thread/2662cac1-fbb6-4ac4-8553-06375d798720

To get SSL/TLS connection you can use SocketProtectionLevel enum class under streamsocket->connectAsync() instead of Openssl. This give you almost similar cryptographic encryption of Openssl.

Best regards,
Jesse

---

Jesse Jiang [MSFT]
MSDN Community Support | Feedback to us

Answer 2

Thanks, Jesse!

Yes, I knew the level enum per my search previously, that's why I was mentioning class StreamSocket and method connectAsync() in my original post. 

Actually my question is whether the class StreamSocket in metro could be compatible to a legacy server running openssl+winsock where 'compatible' means StreamSocket client could setup a secure connection and talk to openssl server. The similar situation goes to DatagramSocket client vs. winsock(UDP) server. Could you confirm please?

Answer 3

Hi ofox.cn,

I used ssl connection of StreamSocket to connect MS lync server and it able to initiate for SSL/TLS connection request.

There is no option in case of DatagramSocket for enabling SSL/TLS connection. SSL/TLS connection only used in TCP communication.

Answer 4

Mokarrom, Thank you! Great  to know that. Based on your info, I would believe StreamSocket follows the standard SSL protocol and could talk to an openssl-enabled server.

Regarding DatagramSocket vs. UDP, I didn't mean SSL in this context. I just meant the compatibility of DatagramSocket client vs. legacy UDP(e.g., winsock) server. Now I would likely believe they are good to talk each other in a standard UDP way.

If these assumptions are not true, plz drop a msg to let me know. Thanks a lot!