Need some network programming info

gauge73 · 05-04-2004, 10:46 AM

I was wondering if anyone could point me to some information on network programming on the packet level and perhaps some information on encryption? I assume there are encryption libraries or something of the sort.

infamous41md · 05-04-2004, 01:16 PM

hit up google. 'raw sockets', here are some links to get started:
http://www.whitefang.com/rin/
http://www.linuxjournal.com/article.php?sid=4659

and if u want tons of code examples, look on the bottom of my site:
www.1nfamus.netfirms.com

aluser · 05-04-2004, 01:41 PM

for encryption, things to google for might be gpgme or gcrypt. A lot of apps which use public key encryption just use the gnupg program over pipes. Try "man 3 encrypt" -- that looks like pretty simple to use symmetric encryption. If you don't know what symmetric or public key means, you need a high level encryption tutorial/introduction -- I don't know a good one off the top of my head but I'd be happy to parse a couple pages of google results if you want a suggestion.

gauge73 · 05-05-2004, 11:31 AM

I assume that symmetric is the same as shared key encryption?

Thanks so much for the good suggestions. I've got a lot of research to do.

aluser · 05-05-2004, 12:00 PM

Quote:

I assume that symmetric is the same as shared key encryption?

I don't hear "shared key" very often but yes, I'd imagine it means the same as symmetric. The encryptor and decryptor have to know a common secret.