Tuesday, September 16, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Nvidia SHIELD Tablet Gets 32GB Storage and 4G LTE
Micron M600 SSD Released With Dynamic SLC Cache
Orange to Buy Spanish Operator Jazztel
US Government Data Requests Increased: Google
Wi-Fi Alliance Enhances Wi-Fi CERTIFIED Wi-Fi Direct
Canon Develops New Wireless Device For Storing Photos
Google Adds A Steering Wheel To Its Self-Driving Cars
MediaTek Launches Low -power MT7628 SoC for Routers And IoT Gateways
Active Discussions
help questions structure DVDR
Made video, won't play back easily
Questions durability monitor LCD
Questions fungus CD/DVD Media, Some expert engineer in optical media can help me?
CD, DVD and Blu-ray burning for Android in development
IBM supercharges Power servers with graphics chips
Werner Vogels: four cloud computing trends for 2014
Video editing software.
 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
Micron M600 SSD Released With Dynamic SLC Cache
HGST Introduces NVMe PCIe SSDs, 10TB HDD
SanDisk Releases The TLC-based Ultra II SSD
Toshiba Responds To Samsung, Introduces 3-Bit SSD
Samsung Introduces SAS-interface SSD
Phison To Release Quad-Core PS3110 SSD Controller
Samsung Introduces SAS-interface Solid State Drive For Enterprises
Marvell Introduces New PCIe 3.0 NVM Express SSD Controller
AMD Readies Radeon R7 SSDs
ADATA Launches New SSD for Industrial and Enterprise Upgrades
HGST Releases New PCIe SSD and Flash Caching Software, Showcases Ultra-fast PCM-based SSD
Lite-On To Showcase New Enterprise Storage Solutions

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .