SafeMedia is an anti-P2P company that wants a law requiring ""every public and private institution receiving Federal funds" to buy its products. EFF has shredded its ludicrous product-claims in an excellent blog-post:
To illustrate this, suppose that SafeMedia attempts to block a program like Allpeers. They might succeed in doing so briefly, because the program tries to make its encrypted SSL conections over TCP port 36000 at first and only later switches to port 443 (the HTTPS port). On a TCP/IP network like the Internet, eavesdroppers can see the port numbers even if they can't decrypt the traffic. So if Clouseau was clever enough, it would remember the initial 36000 connection and stop that machine from using port 443 later (blocking https websites as a side-effect).
But if Clouseau started doing this, Allpeers could change their software to use port 443 from the beginning. If the SafeMedia engineers were really good, there might be another round of cat-and-mouse as Clouseau tried to perform traffic analysis on the sizes and timings of the encrypted packets, and Allpeers started changing their sizes and timings to look like a more typical https website.
