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Striving for sensing: Taming your mobile code to share a robot sensor network

INFORMATION SCIENCES 2014年 277卷 338-357页

作者： Borrego, Carlos Castillo, Sergio Robles, Sergi UAB dEIC Barcelona 08193 Spain

This article presents a general purpose, multi-application mobile node sensor network based on mobile code. This intelligent system can work in delay and disruption tolerant (DIN) scenarios. mobile nodes host software mobile code with task missions and act as DTN routers following the store-carry-and-forward paradigm. Most similar proposals are unable to simultaneously run different applications, with different routing algorithms, movement models, and information retrieval strategies. The keystone of the approach in this paper is using mobile code at two levels: for the application, and for the definition of the behavior in terms of routing algorithms, movement policies and sensor retrieval preferences. The intelligence of the system lies in its ability to adapt to the environment, dynamically optimizing routing algorithms using local and global information and influencing node movement. Simulations and an implementation of a real scenario have been undertaken to prove the feasibility and usability of the system, and to study its performance. A proposal for a real-world application in the context of refugee camp management is presented. (C) 2014 Elsevier Inc. All rights reserved.

关键词： Intelligent system mobile code Robot network DIN network Wireless sensor network

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Towards a mobile code management environment for complex, real-time, distributed systems

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REAL-TIME SYSTEMS 2001年第1-2期21卷 165-189页

作者： Stoyen, AD Petrov, PV Univ Nebraska Ctr Management Informat Technol Omaha NE 68182 USA

We present a novel mobile code management environment, currently under design and development. Our design employs an open architecture, suitable for "plug-and-play" with COTS and other groups' tools. While we have studied new algorithms, cost and objective functions, and other fundamental issues, the main contribution of this experimental research work is in the environment itself. It should be noted that networked platforms, such as the World Wide Web, are inherently not suitable for traditional, predictable real-time applications. Thus, real-time concerns necessarily need to be blended with others concerns, and the target applications, making use of our environment, will too be a blend of partially hard real-time and partially (or mostly) soft-real-time ones. The prototype environment will therefore support performance-based analysis and management focusing not only on predictability but also on compilation, efficiency, safety and other tradeoffs. We have selected the Java language and its bytecode format as a representation for mobile code as well as a language for our implementation.

关键词： distributed systems mobile code mobile agents compilation and interpretation efficiency and safety tradeoffs Java real-time systems

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Using mobile code to create ubiquitous augmented reality

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WIRELESS NETWORKS 2002年第2-3期8卷 199-211页

作者： Kangas, KJ Röning, J Univ Oulu Dept EE Comp Engn Lab FIN-90401 Oulu Finland

Augmented reality systems supplement reality by adding virtual objects into a real-world view. In this article, we describe a flexible mobile code approach for implementing ubiquitous, active, and mobile augmented reality systems. We will concentrate primarily on solving the problem of how to acquire the data for the virtual objects in a way that will be flexible and expandable enough to be used in ubiquitous computing. To clarify the concepts and to illustrate our current research status, we will present an example system that provides virtual user interfaces for various real-world objects. We also hope that these interfaces provide useful insights to the possibilities that our approach can provide. This article suggests that the mobile code approach offers a relatively simple solution that is flexible, scales well, and does not require the computing equipment attached to the real-world objects to be excessively complicated. We can use the same approach in applications that provide only simple descriptions of the real-world objects and in complex applications that allow the user to manipulate real-world objects via virtual user interfaces that exist only in augmented reality. Our approach also supports active augmented reality, in which the virtual objects can react to the real-world events.

关键词： augmented reality mobile code ubiquitous computing mobile computing

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Programming languages for mobile code

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ACM COMPUTING SURVEYS 1997年第3期29卷 213-239页

作者： Thorn, T Inria/Irisa Campus de Beaulieu

Sun's announcement of the programming language Java more than anything popularized the notion of mobile code, that is, programs traveling on a heterogeneous network and automatically executing upon arrival at the destination. We describe several classes of mobile code and extract their common characteristics, where security proves to be one of the major concerns. With these characteristics as reference points, we examine six representative languages proposed for mobile code. The conclusion of this study leads to our recommendations for future work, illustrated by examples of ongoing research.

关键词： distribution formal methods Java Limbo mobile code network programming Objective Caml Obliq object orientation portability Safe-Tcl safety security Telescript

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Using mobile code to provide fault tolerance in tuple space based coordination languages

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SCIENCE OF COMPUTER PROGRAMMING 2003年第1-2期46卷 137-162页

作者： Rowstron, AIT Microsoft Res Ltd Cambridge CB3 0FB England

Tuple space based coordination languages suffer from poor fault tolerance to agent failure. Traditionally, transaction type mechanisms have been adopted in them to provide this type of fault tolerance. However, transactions change the semantics of the tuple space access primitives performed within them and do not provide a sufficient level of flexibility. We propose using mobile coordination, which utilises mobile code, as an alternative mechanism for providing better fault tolerance to agent failure. The use of mobile code is transparent to the application programmer. mobile coordination provides the same level of fault tolerance as transactions, but it also introduces the concept of agent wills. This allows coordination patterns to be performed in a fault tolerant manner which cannot be performed in a fault tolerant manner using transactions. mobile coordination is described in detail. The API for a prototype centralised implementation is presented. It is shown that mobile coordination provides better support and better performance than the traditional approach of using transactions. Implementation strategies for a distributed implementation are also discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

关键词： Linda WCL tuple spaces mobile objects mobile coordination transactions mobile code fault tolerance agent wills

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mobile code Alternatives for Secure Environments

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Informatica 2000年第1期11卷 49-64页

作者： Pakštas, Algirdas Shagaev, Igor University of Sunderland Sch. of Comp. Eng. and Technology Sunderland SR1 3SD Chester Road United Kingdom Inst. of Mathematics and Informatics 2600 Vilnius Akademijos 4 Lithuania Institute of Control Sciences Moscow Profsoyuznaya St. 65 Russian Federation

Growing popularity of the mobile code requires to consider various aspects related to its security. In the aviation industry there is a case when additional information needs to be delivered to the pilot by uploading it from the ground station. It creates a need for a platform-independent solution and it raises a problem of the mobile code security as well. Organization of the security in the Base System (similar to extranets) as well as the security issues of the mobile code (or safelets for use in the aircrafts) delivered to the Remote Platform are discussed in the paper. Safelet implementation technologies and issues of code effectiveness and safety itself are discussed with Java and Juice/Oberon technologies been compared.

关键词： Aviation applications Java mobile code Oberon/Juice Safelets Security

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Cryptanalysis of digital multisignature schemes for authenticating delegates in mobile code systems

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IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY 2003年第2期52卷 462-465页

作者： Wu, TC Hsu, CL Natl Taiwan Univ Sci & Technol Dept Informat Management Taipei 106 Taiwan

Shieh et al. proposed two multisignature schemes for message recovery-the parallel multisignature scheme and the serial multisignature scheme-for authenticating delegates in mobile code systems. In this paper, we will show that Shieh et al. Is multisignature schemes are vulnerable to insider forgery attacks hence cannot achieve the security requirements they claimed.

关键词： authentication mobile code multisignature public key system

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Protecting network users in mobile code systems

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JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING 2004年第2期64卷 191-200页

作者： Shieh, SP Yang, WH Natl Chiao Tung Univ Dept Comp Sci & Informat Engn Hsinchu 30010 Taiwan

Conventional access control mechanisms are rather insensitive to occurrences of context-dependent illegal accesses. Insensitivity to context-dependent accesses may lead to failure to protect network users and resources. Context-dependent illegal accesses resulting from data and privilege flows in open networks cannot be prevented by either authentication or access control mechanisms since unauthorized access need not be attempted. In this paper we present a protection model which tracks data and privilege flows in mobile code systems. It can uniformly define various types of illegal access patterns and has the advantage of preventing context-dependent illegal accesses such as those caused by inadvertent execution of remote mobile code containing viruses or Trojan Horses. The proposed flow control model is expected to complement the conventional model for access control. (C) 2003 Elsevier Inc. All rights reserved.

关键词： mobile code remote execution Java Internet security World Wide Web access control flow control

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A mobile code-driven Trust Mechanism for detecting internal attacks in sensor node-powered IoT

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JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING 2019年 134卷 198-206页

作者： Tariq, Noshina Asim, Muhammad Maamar, Zakaria Farooqi, M. Zubair Faci, Noura Baker, Thar Natl Univ Comp & Emerging Sci Dept Comp Sci Islamabad Pakistan Zayed Univ Coll Technol Innovat Dubai U Arab Emirates Air Univ Dept Comp Sci Islamabad Pakistan Claude Bernard Lyon 1 Univ LIRIS Dept Comp Sci Lyon France Liverpool John Moores Univ Dept Comp Sci Liverpool Merseyside England

The ubiquitous use of Internet-of-Things (IoT) is enabling a new era of wireless Sensor Nodes (SNs) that can be subject to attacks like any other piece of hardware and software. Unfortunately, an open and challenging issue is to what extent legitimate SNs can be trusted. This paper presents an energy-efficient, software-defined-network-based mobile code-driven Trust Mechanism (MCTM) for addressing this issue by assessing trust of SNs based on their forwarding behaviors. MCTM uses mobile code to visit the SNs based on pre-defined itineraries while collecting necessary details about these SNs in preparation for assessing their trust. The results gained from the experiments demonstrate a superior performance over a state-of-art technique that is energy-efficient management based on Software-Defined Network (SDN) for SNs. Message overhead is reduced by approximately 50%, which results in consuming less energy when detecting malicious SNs. (C) 2019 Elsevier Inc. All rights reserved.

关键词： Energy Internet of Things mobile code Sensor node Trust

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Bidirectional mobile code trust management using tamper resistant hardware

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mobile NETWORKS & APPLICATIONS 2003年第2期8卷 137-143页

作者： Zachary, J Brooks, R Univ S Carolina Dept Comp Sci & Engn Columbia SC 29208 USA

Trust management in a networked environment consists of authentication and integrity checking. In a mobile computing environment, both remote hosts and mobile code are suspect. We present a model that addresses trust negotiation between the remote host and the mobile code simultaneously. Our model uses tamper resistant hardware, public key cryptography, and one-way hash functions.

关键词： mobile code authentication trust management tamper resistant hardware hash functions

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