Monday, August 31, 2015
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
NVIDIA GRID 2.0 Launches
New LG Luxurious Urbane Smartwatch To Appear at IFA
Alienware Brings Liquid Cooling and Dynamic Overclocking to Holiday Lineup
Razer Launches Wildcat Xbox One Controller And Upgraded Nabu Smartband
Workstation Market Shippments Rebound In Q2
Google Will Help You Find Your Plumber
IFA 2015: What We Know So Far
Acer Liquid Z410 And Liquid Jade Z Phones Released
Active Discussions
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
How to burn a backup copy of The Frozen Throne
Help make DVDInfoPro better with dvdinfomantis!!!
Copied dvd's say blank in computer only
menu making
Optiarc AD-7260S review
 Home > News > PC Parts > Study F...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, March 07, 2011
Study Finds Erasing SSD Data Can Be Tricky


The complexity of flash-based, solid-state disks raise security concerns because "deleted" data can easily be retreived, according to a university study.

According to findings of researchers at the University of California, San Diego, when it comes to permanently erase the data stored on an SSD or "sanitize" it as the researchers named this unrecoverable procedure, applying built-in sanitize commands are essential, as long as they are implemented correctly (in firmware). All the other available software techniques for sanitizing individual files were not 100% effective, according to the study.

"Built-in (sanitizing) commands are effective, but manufacturers sometimes implement them incorrectly," the study found. "Overwriting the entire visible address space of an SSD twice is usually, but not always, sufficient to sanitize the drive. Finally, "none of the existing hard drive-oriented techniques for individual file sanitization are effective on SSDs," the study added.

Sanitizing data from storage media is a critical component of data management, especially for governments and the enterprise. The process is well-understood for traditional magnetic storage, such as hard drives and tapes. Newer Solid State Disks (SSDs), however, have a much different internal architecture, so it is unclear whether what has worked on magnetic media will work on SSDs as well.

The researchers designed a procedure to bypass the flash translation layer (FTL) on SSDs and directly access the raw NAND flash chips to audit the success of any given sanitization technique.

"By applying techniques designed for sanitizing hard drives on SSDs, such as overwriting and using built-in secure erase commands is unreliable and sometimes results in all the data remaining intact," the researchers said. The researchers added that sanitizing single files on an SSD is generally much more difficult than on a traditional hard drive.

Overall, the researchers concluded that the increased complexity of SSDs relative to hard drives requires that SSDs provide verifiable sanitization operations.

The researchers also described and evaluated three simple extensions to an existing flash translation layer (FTL) that make file sanitization fast and effective.


Previous
Next
AMD Radeon HD 6990 Dual GPU Is Official        All News        Sony to Get The IPs Of PS3-Jailbreaking Site's Visitors
Intel Refreshes Core vPro Processors Family     PC Parts News      Sony Brings Thin VAIO S Laptom Series In U.S.

Get RSS feed Easy Print E-Mail this Message

Related News
Toshiba Exec Sees 128TB SSDs in 2018
SanDisk Releases New SATA SSD CloudSpeed Ultra Gen II SSD
Samsung Rolls Out Line-up of V-NAND SSDs For Data Centers
Seagate Expands Flash Portfolio With New Nytro Flash Products
Toshiba Unveils Three NVME Solid State Drive Families
Lite-On Debuts New NVMe M.2 PCIe SSD
Toshiba Announces Third Generation of Enterprise SAS SSDs, Starts Production Of 3D NAND
Samsung Unveils New Data Center Solid State Drives
ADATA Launches XPG SX930 Series SATA SSD
Plextor Releases New PlexTurbo and V series SSDs
Samsung's s 2TB 850 PRO SSDs Are Rolling Out Globally
Lite-On Introduces New M.2 PCIe SSDs

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2015 - All rights reserved -
Privacy policy - Contact Us .