Title:
記憶装置、アクセスパターンの秘匿方法およびプログラム
Document Type and Number:
Japanese Patent JP5801273
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method of concealing an access pattern for concealing history information against an attacker, capable of implementing on an embedded system or the like, without using dedicated hardware.SOLUTION: A method includes the step for: selecting data on a non-access region and moving the data to an access region, according to memory size of the access region, in a storage device having a memory, divided into an access region and a non-access region for data, and a history data storage region; and exchanging data between the access region and the non-access region, and accessing to other data within the access region, when data access occurs. If data to access in not present on the access region and is present on the non-access region, and stored data are available on the history region, then the data to be accessed and arbitrary data stored on the history region are moved to the access region, and the arbitrary data on the access region are moved to the history region. Then, necessary data on the access region are written.
Inventors:
Nakano Arito
Shinsaku Kiyomoto
Yu Miyake
Shinsaku Kiyomoto
Yu Miyake
Application Number:
JP2012213514A
Publication Date:
October 28, 2015
Filing Date:
September 27, 2012
Export Citation:
Assignee:
KDDI CORPORATION
International Classes:
H04L9/10; G06F5/00; G06F21/14; G09C1/00
Domestic Patent References:
| JP2007251483A | ||||
| JP2013156798A | ||||
| JP2013246678A | ||||
| JP2014067331A |
Foreign References:
| WO2012145916A1 |
Other References:
Yuto Nakano, Carlos Cid, Shinsaku Kiyomoto, and Yutaka Miyake,“Memory Access Pattern Protection for Resource-constrained Devices”,CARDIS 2012,[online],2012年11月29日,Implementations for Constrainted Devices,[検索日 平成27年 7月16日],インターネット,URL,
仲野 有登、清本 晋作、三宅 優,“メモリに対するアクセスパターン秘匿手法の実装評価”,2014年 暗号と情報セキュリティシンポジウム SCIS2014 [CD-ROM],日本,電子情報通信学会情報セキュリティ研究専門委員会,2014年 1月21日,3C1-2,p.1-7
仲野 有登、清本 晋作、三宅 優,“メモリに対するアクセスパターン秘匿手法の実装評価”,2014年 暗号と情報セキュリティシンポジウム SCIS2014 [CD-ROM],日本,電子情報通信学会情報セキュリティ研究専門委員会,2014年 1月21日,3C1-2,p.1-7
Attorney, Agent or Firm:
Kiyoshi Kato