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Hey,
I’m sending messages via TCP and UDP from clients to the server while the server written in C++. I’m wondering what would be the best, must secure way to send, for example, if I want to send login data: email, password and IP. What would be the best way to send it in a message ang read the data in the server, while this data is stored in char *.
Thanks.
As another poster stated, don’t worry about C++; use SSL or TLS. This means you will need to acquire a certificate for the server, and that will cost you between $50 and $1500 dollars if you get a commercial one, or you can make your own from a intranet certificate authority that you establish yourself.
This measure will encrypt the communication, and ensure that your client is actually “talking” to the authentic server, not an imposter. However, if you need the client to also be authenticated, then you will need a second certificate (possibly one per client machine, to be precise). If that is too heavy-weight for your client needs, then consider using HMAC to help determine an authorized client from an imposter.