Faculty Profiles - YAMAUCHI Toshihiro

MISC - YAMAUCHI Toshihiro

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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

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.

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

A Proposal of Intrusion Detection System that can Restore Altered Data

長野文昭, たたら講平, 田端利宏, 桜井幸一

情報処理学会シンポジウム論文集 2005 ( 13,Vol.2 ) 2005

Proposal of Access Control Technique of CPU Resource by Using Execution Resource

田端利宏, 箱守聡, 箱守聡, 横山和俊, 横山和俊, 谷口秀夫

情報処理学会シンポジウム論文集 2005 ( 13,Vol.2 ) 2005

The effect by recycling of the resources in a process transformation mechanism

NOMURA Kazutaka, TABATA Toshihiro, TANIGUCHI Hideo

IPSJ SIG Notes 96 ( 63(OS-96) ) 149 - 156 2004.6

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

A process transformation technique has been implemented in Tender. The purpose of this technique is load distribution in distributed environment. This technique consists of three functions, which are the change of a program, the change of start point of a program and the change of a virtual address space in process execution. In order to utilize this technique efficiently, it is necessary to reduce the cost of the transformation. In this paper, we discuss how a resource recycle mechanism is applied to the process transformation. We also evaluate the process transformation and report the result of the evaluation.

Agent-based IDS for Dynamic Variation of Network Composition

KOTEGAWA Yuki, TABATA Toshihiro, SAKURAI Kouichi

IPSJ SIG Notes 117 ( 22(DPS-117 CSEC-24) ) 109 - 114 2004.3

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

Compared with IDS installed on a network, IDS installed on a host can use more information for intrusion detection. However, IDS installed on a host can detect intrusion into only the host. Therefore, when a host is newly connected to the network, it is necessary to newly install IDS into the connected host. In this paper, Agent-based IDS is proposed. The system can automatically install IDS into the connected host On the proposed system, the mobility of mobile agents can save the time and effort of introduction of IDS. Moreover, by simultaneous distribution of upgraded agents, efficient maintenance management is realized.

A Study on Probabilistic Method for Anomaly Detection

たたら講平, 田端利宏, 桜井幸一

情報処理学会シンポジウム論文集 2004 ( 11(CD-ROM) ) 2004

A Survey of Network and Distributed System Security Symposium

小手川祐樹, 田端利宏, 堀良彰, 桜井幸一

情報処理学会研究報告 2004 ( 54(CSEC-25) ) 2004

An analysis of word salad attack against statistical filtering

岩永学, 田端利宏, 桜井幸一

情報処理学会シンポジウム論文集 2004 ( 11(CD-ROM) ) 2004

Security Management Mechanism for End-Host using Mobile Agents

小手川祐樹, 田端利宏, 堀良彰, 桜井幸一

情報処理学会シンポジウム論文集 2004 ( 11(CD-ROM) ) 2004

A Survey of IEEE Symposium on Security and Privacy

田端利宏, 桜井幸一

情報処理学会シンポジウム論文集 2004 ( 11(CD-ROM) ) 2004

Program Birthmark Scheme with Tolerance to Equivalent Conversion of Java Classfiles

FUKUSHIMA Kazuhide, TABATA Toshihiro, SAKURAI Kouichi

IPSJ SIG Notes 23 ( 126(CSEC-23) ) 81 - 86 2003.12

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

This paper examines program birthmark scheme for Java in order to detect illegal thefts of Java classfile. Tamada et al. proposed birthmark scheme based on initial value assignments, the sequence of method call, and the inheritance structure. We show that the birthmarks based on initial value assignments and the inheritance structure can be modified easily. In addition, we propose a birthmark scheme using automata.

Implementation and Evaluation of Instant Synchronization InterProcess Communication on Tender

FUKUTOMI Kazuhiro, TABATA Toshihiro, TANIGUCHI Hideo

IPSJ SIG Notes 93 ( 42(OS-93) ) 25 - 32 2003.5

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

InterProcess Communication (IPC) is used in many application programs. IPC is important and used in various ways. Especially exchanging data, a common form of IPC is message passing. However, in the message passing, since communication is completed in the combination of the send and receive operation, IPC cannot contain two elements simultaneously - the instant communication operation and the synchronization of data transfer. In this paper, we propose the mechanism of Instant Synchronization InterProcess Communication. We describe the implementation of this mechanism on Tender operating system. Also, we show the basic performance of this mechanism and evaluate this mechanism using an application program.

Design of Resource Enduring Mechanism Using Plate on Tender

MATONO Tsukasa, TABATA Toshihiro, TANIGUCHI Hideo

IPSJ SIG Notes 93 ( 42(OS-93) ) 147 - 154 2003.5

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

To provide various functions such as process management and memory management, an operating system (OS) builds various kinds of management information on volatile memory. Data on volatile memory, however, is no longer available when a computer is turned off. This unreliability of volatile memory causes serious problem - if computer crashes, a computer cannot continue previous processing. One way to solve this problem is to make OS management information persistent. On Tender operating system, which we are developing, we define a resource as an object controlled and managed by the OS. Therefore, as long as we can make resources persistent on Tender, we can make OS management information persistent. In this paper, we propose resource enduring mechanism using plate, which makes data on virtual memory persistent, and explain the design of this mechanism.

田端利宏, 乃村能成, 谷口秀夫

第65回全国大会講演論文集 2003 ( 1 ) 1 - 2 2003.3

Design of User Level Access Control Mechanism Using Dynamic Linker.

田端利宏, 桜井幸一

情報処理学会シンポジウム論文集 2003 ( 15 ) 2003

On the Security of SELinux Access Control Based on a Simplified Policy.

末安克也, 田端利宏, 桜井幸一

情報処理学会シンポジウム論文集 2003 ( 15 ) 2003

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