Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
What's the story with these ads on Slashdot? Check out our new blog post to find out. ×

Comment Re:Blast from the past (Score 1) 87

the main thing is that the virtual memory statistics are relatively clean. it seems only memmapping, shared libraries and graphics buffers for compositing produce obvious changes in virtual memory statistics, with compositing taking up almost all of the obvious changes. introducing randomized noise into the virtual memory usage at the kernel level would drastically cut down on this attach vector. it would tie the security of the kernel's randomization to the virtual memory usage.

Comment Re:Blast from the past (Score 2) 87

yeah that is private memory. the article is about an attack vector based on changes in shared memory usage ("signatures") for when the OS does its UI compositing. shared memory is used to avoid copying graphical data when a client-based window manager does its compositing.

you still can't read the shared data of another process but the "signatures" can provide you with some idea of what the top-most activity is on the screen, something you cannot know otherwise unless you are the top-most activity or the system-level ActivityManager. if you know the top-most activity, you may have a better idea of what type of attack to launch.

Comment Not really much here (Score 5, Informative) 258

Old Argument (Younger Dryas): We found iridium (rare on earth but abundant in meteorites), nanodiamonds and magnetic particles covering ancient tools and mammoth remains at sites which we believe are around 12,000 years old. Therefore, we believe a cosmic collision caused the 1,300 year deep-freeze.

New Argument: We performed radiocarbon dating on tools found at the 29 sites described in the Old Argument and found that only 3 of the 29 sites were around 12,000 years old. The tools at other sites were much older or younger. Therefore, the deep-freeze was probably not caused by a cosmic collision.

Comment Quite simple (Score 2) 182

Steven Elop works for microsoft. Steven Elop goes to Nokia. Steven Elop restructures and retools Nokia to be a Microsoft shop. Steven Elop cuts Nokia's market cap in half. Microsoft buys Nokia. Steven Elop becomes CEO of Microsoft in a few years (after Ballmer's successor resigns after 2 years). You guys connect the dots yet? I'm sure Nokia has a lot of patents Microsoft wants.

Comment From the summary (Score 1) 356

"Dixon crossed the line between free speech protected under the First Amendment and criminal conduct when he told some clients to conceal what he taught them while undergoing government polygraphs."
Assuming the summary is accurate, he crossed the line when he instructed them to lie. There is a big difference between teaching people how to circumvent a polygraph test and overtly instructing them to lie.

You are false data.

Working...