funsec mailing list archives

Re: Skype reportedly reverse-engineered


From: Jeffrey Walton <noloader () gmail com>
Date: Tue, 7 Jun 2011 20:17:35 -0400

On Tue, Jun 7, 2011 at 4:10 PM, Rob, grandpa of Ryan, Trevor, Devon &
Hannah <rMslade () shaw ca> wrote:
http://j.mp/kt72Ke+

"Yesterday we reported on a freelance researcher reverse-engineering the
Skype protocol and beginning to write open-source code that would work with
this popular VoIP network. A representative of Skype has now contacted
Phoronix to inform us they will be taking "all necessary steps" to stop this
effort."
"...the courts are willing to allow a limited amount of reverse
engineering of copyrighted materials for the purpose of achieving
interoperability between computer products as long as the final
product does not contain any infringing code. When it does contain
such code, it may at times also be excused under the doctrines of
merger and scenes a faire if it is necessary to achieve
interoperability or functions as a lockout code."
- Jason Schultz, Senior Staff Attorney at the Electronic Frontier Foundation

Hopefully the EFF will take up the cause on Skypes judicial bullying
(am I reading too much into "all necessary steps"?).

[SNIP]

This new wrinkle in the situation reminds me of the battle royal, many years ago,
between Microsoft and AOL over instant messaging functions.  (Little good can
come out of the fight, I suspect, other than the high probability that someone will
come up with some form of realistic alternative to Skype.)  In the instant
messaging scrap, both sides worked furiously on developing new versions of their
client software that would be incompatible with the other.  This activity
culminated in one vendor creating one with a buffer overflow situation.  Not by
accident: this was done deliberately so that some instant messaging functions could
*only* be accessed by a buffer overflow, thus reducing the (comparative)
functionality of the other client.
Ooh! More AARD code!
(http://www.theregister.co.uk/1999/11/05/how_ms_played_the_incompatibility/).
Funny how it morphs and then spotted in the wild - a lot like a
virus....

Jeff

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