Mar 02 2011

Reliably Erasing Data from Flash-Based Solid State Drives

Tag: Informática Legal,SystemsJoaquim Anguas @ 9:53 am

Our results lead to three conclusions: First, built-in commands are effective, but manufacturers sometimes implement them incorrectly. Second, overwriting the entire visible address space of an SSD twice is usually, but not always, sufficient to sanitize the drive. Third, none of the existing hard drive-oriented techniques for individual file sanitization are effective on SSDs. This third conclusion leads us to develop flash translation layer extensions that exploit the details of flash memory’s behavior to efficiently support file sanitization. Overall, we find that reliable SSD sanitization requires built-in, verifiable sanitize operations.”

Abstract
Full paper
Video

From USENIX via The Register.


Mar 01 2011

Schneier on Anonymous vs HBGary

Tag: (i)realidad,Informática LegalJoaquim Anguas @ 9:27 am

Or was it ArsTechnica?
Anyway…