Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MEMORY DEVICE
Document Type and Number:
Japanese Patent JP2013118616
Kind Code:
A
Abstract:

To provide a memory device that is advantageous to prevent unauthorized use of confidential information.

A memory device comprises: a first area in which first key data and unique secret data are stored and reading from the first area is restricted; and a second area in which encrypted unique secret data generated by encrypting the unique secret data is stored and reading from the second area is possible. The first key data is read from the first area and AES encryption is performed using the first key data and first numerical data received from the outside to thereby generate second key data, AES encryption is performed using the second key data and second numerical data received from the outside to thereby generate session key data, and unidirectional conversion is performed using the session key data and the unique secret data read from the first area to thereby generate authentication information data.


Inventors:
NAGAI YUJI
KATO HIROSHI
MATSUSHITA TATSUYUKI
SUZUKI TOSHIHIRO
SHIBATA NOBORU
Application Number:
JP2012209681A
Publication Date:
June 13, 2013
Filing Date:
September 24, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOSHIBA CORP
International Classes:
H04L9/32; G06F21/62; H04L9/08
Domestic Patent References:
JPH08204702A1996-08-09
JP2012033000A2012-02-16
JP2012008756A2012-01-12
JP2011209802A2011-10-20
JP2011215983A2011-10-27
JP2010287005A2010-12-24
JP2010267240A2010-11-25
JP2009087497A2009-04-23
JP2008269088A2008-11-06
JP2007027896A2007-02-01
JP2006005557A2006-01-05
JP2005506589A2005-03-03
JP2013138491A2013-07-11
JP2012521155A2012-09-10
JP2009100394A2009-05-07
JP2000122931A2000-04-28
JP2005341156A2005-12-08
JP5275432B22013-08-28
JP5214782B22013-06-19
Foreign References:
US20080229015A12008-09-18
US4757468A1988-07-12
Attorney, Agent or Firm:
Fujiwara Yasutaka
Shinji Nogi
Takuya Takahashi
Kumiko Kuroda
Yasushi Kumagai
Kuniyuki Onishi
Takashi Ishikawa



 
Previous Patent: 反射結像光学系、露光装置、およびデバイス製造方法

Next Patent: MOBILE STATION DEVICE, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT