(12) (10) Patent No.: US 7,971,241 B2 Guyot et al. (45) Date of Patent: Jun. 28, 2011 (54) TECHNIQUES FOR PROVIDING Ziiéifié E: lggggg E/F1“? it al ~1 ~~~~~~~~~~~~~~~~~~ "5 VERIFIABLE SECURITY IN STORAGE i i mm S et a ' 2002/0099950 A1* 7/2002 Smith ......................... .. 713/200 DEVICES 2002/0184527 Al 12/2002 Chun et al. 2004/0025027 A1* 2/2004 Balard et al. ................ .. 713/183 (75) Inventors: Cyril Guyot, San Jose, CA (US); Jorge 2004/0123163 A1 7/2004 Goodman er a1, Campello de Souza, Cupertino, CA 2005/0157880 A1* 7/2005 Kurn et al. 380/279 (US); Anand Krishnamurthi Kulkarni, 2005;0223154 A1: 10;2005 Uelinma 7/11/4 cA<Us>;M-H- §222.2:§;§s? 21* 2.2222 mist, 3&3/ii? NGW, S2111 JOSE, CA (US) 2007/0118768 A1* 5/2007 Wolford _________ 713/193 2008/0052777 A1* 2/2008 Kawano et al. ............... .. 726/18 (73) Assignee: Hitachi Global Storage Technologies Netherlands, B.V., Amsterdam (NL) FOREIGN PATENT DOCUMENTS CN 1527208 A 9/2004 ( * ) Notice: Subject to any disclaimer, the term of this OTHER PUBLICATIONS patent is extended or adjusted under 35 U_S_C_ l54(b) by 853 days, State Intellectual Property Office of the Peoples’ Republic of China, “First Office Action Notification,” for patent application (21) Appl. No.: 11/615,843 2007101936184, pp. 1-7, Jan. 8, 2010 (original and English translation). (22) Filed: Dec. 22, 2006 “Software That Drives e-Commerce, Alliance AES/400,” Patrick Townsend & Associates, Aug. 11, 2006, pp. 1-3. (65) Prior Publication Data (C t_ d) on inue US 2008/0155680 A1 Jun. 26, 2008 Primary Examiner — Kambiz Zand (51) IIIt- CI- Assistant Examiner — Yonas Bayou G06F 7/04 (200601) (74) Attorney, Agent, 0r Firm — Steven J. Cahill (52) U.S. Cl. .................. .. 726/17; 726/2; 726/4; 726/18; 726/26; 713/164; 713/193; 713/182; 380/28; (57) ABSTRACT 380/279 . . . . . _ _ _ A verifiable security mode is provided for securing data on a (58) Field of Classification Search ................ .. 713/164; Storage device Such as a hard disk drive when the verifiable 726/17 - ’- - ' S 1. t. fil f 1 t h h. t security mode is enabled, only authenticated accesses to data ee app lea Ion e or Comp e e Seam ls OW‘ stored on the storage device are pemiitted after entering a (56) References Cited password. An end user is prevented from disabling the ven
fiable security mode. The verifiable security mode can be set to allow or disallow an administrator from disabling the verifiable security mode. The verifiable security mode can be implemented, for example, in finnware on a hard disk drive (HDD).
5,704,039 A * 12/1997 Yishay et al. ................. .. 726/28
6,268,789 B1 * 7/2001 Diamant et al. . 340/5.74
6,272,221 B1* 8/2001 Tsunoo .... .. 380/28
6,738,879 B2 * 5/2004 Chan et al. 711/164
7,107,455 B1* 9/2006 Merkin ....................... .. 713/182
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