Posted by Alex Toone on 2000-08-12
> Date: Sat, 12 Aug 2000 16:11:35 +0200 > From: "Reto F. Bachmann" <bachmann@xxxxxxxx.xx> > Subject: crypted chat > > hi! > > i'd like to implement something like chat / video conference > but would like to crypt it so that a company / user group > can be quite shure that only authorized members of the > company / group can decode it. > question 1: should i use normal tcp/udp and crypt only the > data or should i use something like SSL to transfer data? > question2: is there any source available which addresses this > idea (i dont like to re-invent the wheel...) > > any pointers apprechiated > thanks and have a nice day > > reti Reti, I don't know much about the implmentation of the encription part, but for a live video stream you should use UDP as its faster than TCP, and its not important for all the data to reach the target. Mebey you could add a chat window below the video that runs TCP/IP so if the video gets slow, you can still get a message through. I'd go with something like DES or blowfish (DES has been cracked, as far as I know), to encript the data actually transported. Well, there are my thoughts, but as I said I don't know how you would implemnet the encripted stuff, but you sound like you know what your doing... keep us posted on progess Alex
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