Can anybody tell me the list of socket families available on the Linux - Red Hat 7.0 or some other version? and some desription about each family (in context of C language). Basically, I want to know how can I use a socket to decrypt and then read bytes from the socket? So, I dont know which family should I use and also which structure for socket address should I use, where I can specify my secret key used in the decryption?

Thanks in advacne,
Ankit.