Faculty Profiles - YAMAUCHI Toshihiro

MISC - YAMAUCHI Toshihiro

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AnTオペレーティングシステムの設計

谷口秀夫, 乃村能成, 田端利宏

第68回全国大会講演論文集 2006 ( 1 ) 41 - 42 2006.3

AnTオペレーティングシステムのメモリ領域管理

田端利宏, 梅本昌典, 安達俊光, 谷口秀夫

第68回全国大会講演論文集 2006 ( 1 ) 45 - 46 2006.3

SPAM mail filtering : commentary of Bayesian filter(<Special feature>Information filtering)

TABATA Toshihiro

The Journal of Information Science and Technology Association 56 ( 10 ) 464 - 468 2006

Language：Japanese Publisher：Information Science and Technology Association, Japan

SPAM mail has being increased with the spread of e-mail. The increase of SPAM mails becomes a serious problem for email users. Email filtering that can filter out SPAM mail, has been received much attention. Bayesian filter is one application of Bayes' Theorem. The filter program creates a database from received emails and calculates the SPAM probability of an email based on the database. This article explains the method of learning and calculation of SPAM probability of Bayesian filtering.

DOI： 10.18919/jkg.56.10_464

Information Leak Detection by Tracing Classified Information Diffusion

田端利宏, 箱守聰, 箱守聰, 横山和俊, 乃村能成, 谷口秀夫

情報処理学会シンポジウム論文集 2006

Proposal of Fast Cryptographic File System with Cache System

松田直人, 田端利宏

情報処理学会シンポジウム論文集 2006

アクセスベクタパーミッションと脅威の関係に関する調査

山口拓人, 田端利宏

電気・情報関連学会中国支部連合大会講演論文集(CD-ROM) 57th 2006

ファイルの格納ディレクトリを考慮したバッファキャッシュ制御法の評価

小峠みゆき, 田端利宏, 谷口秀夫

電気・情報関連学会中国支部連合大会講演論文集(CD-ROM) 57th 2006

Tenderにおける動作継続制御切り替え機能の実現

大本拓実, 田端利宏, 谷口秀夫

電気・情報関連学会中国支部連合大会講演論文集(CD-ROM) 57th 2006

AnTにおけるプラグアンドプレイ機能の実現方式

安達俊光, 田端利宏, 乃村能成, 谷口秀夫

電気・情報関連学会中国支部連合大会講演論文集(CD-ROM) 57th 2006

Information Leak Detection by Tracing Classified Information Diffusion

田端利宏, 箱守聰, 箱守聰, 横山和俊, 乃村能成, 谷口秀夫

情報処理学会シンポジウム論文集 2006 ( 11 ) 2006

Proposal of Fast Cryptographic File System with Cache System

松田直人, 田端利宏

情報処理学会シンポジウム論文集 2006 ( 11 ) 2006

B-019 Proposal of Advance Creation Mechanism of Process Resources

Tabata Toshihiro, Taniguchi Hideo

4 ( 1 ) 135 - 136 2005.8

A Note on Application of the Program Obfuscation Scheme using Random Numbers to Complicate Control Flow

TOYOFUKU Tatsuya, TABATA Toshihiro, SAKURAI Kouichi

IPSJ SIG Notes 30 ( 70 ) 213 - 220 2005.7

Language：Japanese Publisher：Information Processing Society of Japan (IPSJ)

For the security technology that has been achieved with software in the computer system and the protection of the intellectual property right of software, software protection technology is necessary. One of that technique is called obfuscation, which converts program to make analysis difficult while preserving its function. In this thesis, we examine the applicablity of our program obfuscation scheme to complicate control flow and study the torelance against program analysis.

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CiNii Books

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A Note of Intrusion Detection using Alteration of Data

NAGANO Fumiaki, TATARA Kohei, TABATA Toshihiro, SAKURAI Kouichi

IPSJ SIG Notes 30 ( 70 ) 37 - 44 2005.7

Language：Japanese Publisher：Information Processing Society of Japan (IPSJ)

These days, Attacks which alter data in memory illegally are one of the most serious security threats. Although a lot of detection systems have been proposed so far, most of the systems have the problem that only a part of the alteration of data in memory can be detected. And, some detection systems use secret data. But, if an execution code has a bug like format string bug which enable attackers to read data in memory, data in memory might be altered illegally because the secrete data might be guessed by the attackers. Then, we propose a system which detects the alteration of arbitrary data in memory by attackers. Moreover, this system doesn't have the vulnerability that exist the systems which use secret data.

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A Note of Intrusion Detection using Alteration of Data

NAGANO Fumiaki, TATARA Kohei, TABATA Toshihiro, SAKURAI Kouichi

IEICE technical report. Social Implications of Technology and Information Ethics 105 ( 192 ) 37 - 44 2005.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

A Note on Application of the Program Obfuscation Scheme using Random Numbers to Complicate Control Flow

TOYOFUKU Tatsuya, TABATA Toshihiro, SAKURAI Kouichi

IEICE technical report. Social Implications of Technology and Information Ethics 105 ( 192 ) 213 - 220 2005.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

Active Modifier of Control Flow for Detecting Anomalous Program Behavior

Tatara Kohei, Tabata Toshihiro, Sakurai Kouichi

IPSJ SIG Notes 2005 ( 33 ) 75 - 80 2005.3

Language：Japanese Publisher：Information Processing Society of Japan (IPSJ)

In order to prevent malicious use of the computer using buffer overflow vulnerabilities, a corrective action by not only calling a programmer's attention but expansion of compiler or OS is important. On the other hand, introduction and employment of an intrusion detection system must be easy for the user by whom the knowledge about a computer is restricted. In this paper, we can detect an anomly program behavior by actively modifying some control flows of a program. Our method satisfies these requirements and gives no false positives.

A Proposal of a System for Detecting Buffer Overflow with Detecting Alteration of Data

NAGANO Fumiaki, TATARA Kohei, TABATA Toshihiro, SAKURAI Kouichi

IPSJ SIG Notes 2005 ( 33 ) 81 - 86 2005.3

Language：Japanese Publisher：Information Processing Society of Japan (IPSJ)

Numerous security technologies which detect buffer overflow have already proposed. Almost these technologies detect if buffer overflows happen or not, but don't detect alteration of variable integrity. But there are attacks which are not be able to be defenced unless the technology detect alteration of variable integrity. So in this paper, we propose a system which detect alteration of variable integrity. Some exinting technologies could be bypassed if the attacker can see the user memory, but our proposed system can't be bypassed even if the attacker can see the user memory. And our proposed system can restore data which is altered by attackers using buffer overflow.

Tenderにおける資源「プレート」のサイズ変更機能

大本拓実, 田端利宏, 乃村能成, 谷口秀夫

第67回全国大会講演論文集 2005 ( 1 ) 43 - 44 2005.3

スタックの改ざん検知による侵入検知システムの一考察

長野文昭, 鑪講平, 田端利宏, 櫻井幸一

第67回全国大会講演論文集 2005 ( 1 ) 577 - 578 2005.3

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