Friday, August 1, 2008

Deep Packet Inspection - Computer Santa Claws

Imagine a Santa who receives bags of mail every second, reads and sorts each request, knows everybody's naughty or nice quotient and dispenses the correct 'just deserts' as fast as each request arrives.
Creep'ed out yet?
If so, stop reading now.


"Anyone who uses the Internet needs to be aware of Deep Packet Inspection (DPI), its uses, and potential misuses... DPI is next-generation technology that’s capable of inspecting every byte of every packet that passes through the DPI device, that means packet headers, types of applications, and actual packet content... DPI allows people controlling the device to know everything, including the payload of each packet in the data stream. For example, if an unencrypted e-mail is scanned, the actual body of the e-mail can be reassembled and read.

What makes DPI all the more impressive is that the packet analysis happens in real time, with data stream throughput approaching 20-30 Gb. See where I’m going with this? With no loss of throughput, ISPs are able to insert these devices directly in their data streams, forcing all traffic to pass through the devices. Procera, Narus, and Ellacoya are front-runners in development of this technology, having placed equipment throughout the world.

DPI developers are adamant that the technology is benign and will create a better Internet. experience. However, privacy groups have two major concerns: little or no oversight and the potential for losing still more individual privacy.

An optimist would say that DPI will help enhance the experience, even producing ads that are relevant to each individual user. Whereas a pessimist would say it’s “big brother” technology that only benefits ISPs." (more)
A realist would say: "history tends to repeat" "mission creep" "if a technology can be abused..."