Anarchaia

Experimental, impressionistic sub-paragraph tumblin' (think obstsalat)

09aug2007

“The Way of Testivus”: Testing and Beautiful Code, by Alberto Savoia. Nice read.

Exploiting Concurrency Vulnerabilities in System Call Wrappers , by Robert N. M. Watson “System call interposition allows the kernel security model to be extended. However, when combined with current operating systems, it is open to concurrency vulnerabilities leading to privilege escalation and audit bypass. We discuss the theory and practice of system call wrapper concurrency vulnerabilities, and demonstrate exploit technques against GSWTK, Systrace, and CerbNG.” Hot stuff.

IMG_0211.JPG by mattdork

I’m amazed how the news does travel
Static like ghosts in gasoline
Faster than vision on a wire
Faster than voices overseas
— Thin White Rope, Wire Animals

Tiny PE, the object of the challenge was to write the smallest PE file that downloads a file from the Internet and executes it. Windows is crazy.

How to Make “Cold” From “Heat” – 20th Century Refrigeration, “Or more classically posed, “How can you make ice from fire?” The answer is a classic gas-absorption refrigerator!” I was really curious how that worked.

Passwords: just another bureaucratic annoyance, by Andy Oram. Full ack.

The Veteran’s Charge, Eric Meyer says: “‘This site is for iPhone users only.’ STOP IT. Stop it right now.” Full ack.

lenin by emmma peel

A tag system is a deterministic computational model published by Emil Leon Post in 1943 as a simple form of string rewriting system. For each m > 1, the set of m-tag systems is Turing-complete.

Hey, where’s Raquel? Isn’t she here?
No, I haven’t seen her for one million years.
Hey, what’s her problem? She dug that ground?
No, some of us just take a little more time to come around.
— Thin White Rope, Come Around

Portions Censored From Pearl Jam Webcast, “Reportedly absent from the webcast were segments of the band’s performance of “Daughter,” including the sung lines “George Bush, leave this world alone” and “George Bush find yourself another home.” WJW.

Unpredictability and Undecidability in Dynamical Systems, by Cris Moore. “We show that motion with as few as three degrees of freedom (for instance, a particle moving in a three-dimensional potential) can be equivalent to a Turing machine, and so be capable of universal computation.”