• Title/Summary/Keyword: Information Sharing System

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The Processor Dupliction using Extended warm-Standby Sharing in IMT-w000 System (IMT-2000 시스템에서 확장된 Warm-standby sharing을 이용한 프로세서 이중화)

  • Lee, Jong-Chan;Gang, Gwon-Il;Lee, Gyeong-Jun
    • The KIPS Transactions:PartC
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    • v.8C no.4
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    • pp.429-436
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    • 2001
  • IMT-2000에서 RNC의 MCP는 호 처리를 담당하는 부분으로, 신뢰도와 실시간성이 요구된다. MCP는 높은 견고성을 갖도록 구현되지만 다소간의 오류 율(Fault late)은 존재할 수밖에 없으므로 프로세서를 이중화하여 활성화된 프로세서가 장애를 일으키더라도 대기중인 프로세서가 연속적인 서비스를 제공할 수 있어야한다. Warm standby sharing에 비하여 Hot standby sharing은 데이터 손실이 없고 오류 데이터가 확산되지 않는 등의 다수의 장점을 갖지만 동기화 문제로 인하여 이를 시스템에 실제로 구현하는 것은 어렵다. 따라서 본 연구에서는 Hot standby sharing에 비하여 기존의 Warm standby sharing이 갖는 동기화의 장점에 데이터 손실 및 거짓 데이터의 확산 문제를 개선함으로서, 실제 구현의 용이성 및 성능 향상이라는 결과를 얻으려 하였다.

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A KCDSA Magic Ink Sinature Secret Sharing Method (분배된 비밀 공유 기법을 이용한 KCDSA 매직 잉크 서명 방식)

  • 류영규
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.9 no.2
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    • pp.13-24
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    • 1999
  • Electronic cash is a digital signature issued by bank. If the concept of the distributed secret sharing and magic ink signature is introduced in the existing electronic cash system we can increase the security level and the availability of electronic cash system and trace the electronic cash itself and the owner of electronic cash which was issued anonymously to a user in case of illegal usage of electronic cash by users. If the trust is concentrated on one bank system. the problem of misuse of bank can be occurred. To solve this problem, the distributed secrete sharing scheme need to be introduced in electronic cash system. In this paper We propose a DSS(Digital Signature Standard) distributed magic ink signature scheme and a KCDSA(Korea Certificate-based Digital Signature Algorithm) distributed magic ink signature scheme using a verifiable secret sharing method. and we compare two methods with respect to the required computation amount for the generation of magic-ink signature.

Current Trends in the U.S. Cybersecurity Laws (미국 사이버보안법의 최근 동향 - 「사이버보안 정보공유법」을 중심으로 하여 -)

  • Yang, Chun-Soo;Jee, Yu-Mi
    • Journal of Legislation Research
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    • no.54
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    • pp.155-192
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    • 2018
  • As the 'hyper-connected society' has emerged through the 'Fourth Industrial Revolution, public interests as well as social dangers have increased. Above all, the risk of infringement of information, including confidential personal information, is dramatically increasing. As the hyper-connected society has been realized, even if only one of the internet devices is hacked, there would be a danger that the ripple effect of such a hacking spreads to the whole network. Therefore, the necessity and importance of information security, including cybersecurity, has been increasing. In other words, the stability of cyberspace and internet space is becoming more important. As a result, the Korean government is seeking to build a legal system related to information security, which would be able to cope with the information infringement problem in the hyper-connected society. However, it seems that the government is still struggling with the direction of building such a legal system. In this context, a comparative review examining the legal systems of advanced foreign countries will provide meaningful implications as to what kinds of legal policies we should devise and implement for information security. In particular, the U.S. legislative act that actively responds to the cybersecurity violations is worthy of reference. For this reason, this article systematically analyzes the current status of the U.S. cybersecurity laws. Especially, this article focuses on the "Cybersecurity Information Sharing Act of 2015"(hereinafter "CISA"), that was recently enacted by the U.S. congress. The CISA prescribes the systemic and detailed information-sharing between national and private entities. The CISA, that actively promotes information-sharing, is full of suggestions for us, in that information-sharing is an effective way to properly realize information security in today's hyper-connected society.

Design of shared digital content economic platform (shaRe:port) using blockchain (블록체인을 활용한 디지털콘텐츠 공유경제 플랫폼(shaRe:port) 설계)

  • Min, Youn-A;Lee, halim;Park, soyoung;Choi, inseon;Baek, Yeong-Tae
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2019.07a
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    • pp.359-360
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    • 2019
  • This paper proposes partial sharing and trading of digital content as a method of sharing blockchain idurium-based digital content. The platform has three characteristics and aims to improve the existing digital content sales platform. First, it increases the efficiency of sharing and trading through partial sharing and trading systems of digital content. Second, it will be built in the form of blockchain idurium-based smart contracts to ensure the accuracy of transactions. Third, it is possible to analyze the form factor of the comments by improving the grading system.

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KAWS: Coordinate Kernel-Aware Warp Scheduling and Warp Sharing Mechanism for Advanced GPUs

  • Vo, Viet Tan;Kim, Cheol Hong
    • Journal of Information Processing Systems
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    • v.17 no.6
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    • pp.1157-1169
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    • 2021
  • Modern graphics processor unit (GPU) architectures offer significant hardware resource enhancements for parallel computing. However, without software optimization, GPUs continuously exhibit hardware resource underutilization. In this paper, we indicate the need to alter different warp scheduler schemes during different kernel execution periods to improve resource utilization. Existing warp schedulers cannot be aware of the kernel progress to provide an effective scheduling policy. In addition, we identified the potential for improving resource utilization for multiple-warp-scheduler GPUs by sharing stalling warps with selected warp schedulers. To address the efficiency issue of the present GPU, we coordinated the kernel-aware warp scheduler and warp sharing mechanism (KAWS). The proposed warp scheduler acknowledges the execution progress of the running kernel to adapt to a more effective scheduling policy when the kernel progress attains a point of resource underutilization. Meanwhile, the warp-sharing mechanism distributes stalling warps to different warp schedulers wherein the execution pipeline unit is ready. Our design achieves performance that is on an average higher than that of the traditional warp scheduler by 7.97% and employs marginal additional hardware overhead.

Novel online routing algorithms for smart people-parcel taxi sharing services

  • Van, Son Nguyen;Hong, Nhan Vu Thi;Quang, Dung Pham;Xuan, Hoai Nguyen;Babaki, Behrouz;Dries, Anton
    • ETRI Journal
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    • v.44 no.2
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    • pp.220-231
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    • 2022
  • Building smart transportation services in urban cities has become a worldwide problem owing to the rapidly increasing global population and the development of Internet-of-Things applications. Traffic congestion and environmental concerns can be alleviated by sharing mobility, which reduces the number of vehicles on the road network. The taxi-parcel sharing problem has been considered as an efficient planning model for people and goods flows. In this paper, we enhance the functionality of a current people-parcel taxi sharing model. The adapted model analyzes the historical request data and predicts the current service demands. We then propose two novel online routing algorithms that construct optimal routes in real-time. The objectives are to maximize (as far as possible) both the parcel delivery requests and ride requests while minimizing the idle time and travel distance of the taxis. The proposed online routing algorithms are evaluated on instances adapted from real Cabspotting datasets. After implementing our routing algorithms, the total idle travel distance per day was 9.64% to 12.76% lower than that of the existing taxi-parcel sharing method. Our online routing algorithms can be incorporated into an efficient smart shared taxi system.

A Design of Cooperative Works Platform for software Development Productivity (소프트웨어 개발 생산성 향상을 위한 공동 작업 플랫폼 설계)

  • Cho, Sung-Been;Kim, Jin-Suk
    • The Transactions of the Korea Information Processing Society
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    • v.5 no.1
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    • pp.73-85
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    • 1998
  • Today's Software Systems are becoming bigger, larger and more complex than ever before. To develop largerscale projects, it is required that many experts of different fields participate and cooperate in the same project. So, it is an applied area of CSCW(Computer Supported Cooperative Works} that centers around methodologies and tools that enable cooperative works by geographically distributed people engaged in all aspects of product development. In this paper, we designed a multi-user cooperative works platform, SPACE(Software Platform for distributed Application sharing under Cooperative Environment} as a infrastructure that support to CSCW based system development for telecommunication and information system. SPACE has a fully distributed architecture under Windows 95 environment, has an application sharing mechanism enabling collaborative use of mteractive application adapt to a mixed GUI sharing technology which capture GUI and screen information, and also, an event sharing technology that has a replicated architecture.

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An SNS Based Construction Information Communication and Sharing System (SNS기반 건설현장 정보소통 및 공유 시스템 구축)

  • Ahn, Jaesang;Kim, Namho;Chin, Sangyoon
    • Korean Journal of Construction Engineering and Management
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    • v.15 no.5
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    • pp.115-126
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    • 2014
  • Although various IT-based services including PMIS are used at construction field, there have been limits on communications, such as fast reaction, information loss, and information security in the real world. Therefore, this paper proposes to adapt a social network service (SNS) that has already been used for information management and sharing information at the company level in other industries in order to support construction information management and communication in a fast and accurate manner. Following the requirement analysis through literature review and site interviews, the paper presents an SNS-based construction information communication and sharing system named PMIS+. PMIS+ was tested and validated for its feasibility at construction sites and it was proved that the proposed system and information management framework using the system could be helpful for effective information management at construction fields.

The Effect of Information Security Related Stress and Person-Organization Fit on Knowledge Sharing Behavior (정보보안 관련 스트레스와 개인조직 적합성이 정보보안 지식공유행동에 미치는 영향)

  • Hwang, In-Ho
    • Journal of the Korea Convergence Society
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    • v.12 no.2
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    • pp.247-258
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    • 2021
  • Recently, organizations are demanding strict information security behavior from their employees. Strict information security policies and techniques can cause information security related stress. The purpose of this study is to present the negative effects of information security related techno stress and role stress that reduce knowledge sharing behavior and person-organization fit. The survey was conducted to people working in organizations with information security policies and system, and the research hypothesis was verified by structural equation modeling using 309 samples. As a result of the study, person-organization fit had a positive effect on knowledge sharing behavior, but role stress had a negative effect. And, techno-stress negatively affected the person-organization fit. Additionally, role ambiguity had a moderating effect between person-organization fit and knowledge sharing behavior. The implications of the study were to confirm the negative effects of information security related techno stress and role stress, and to suggest directions for minimizing negative behavior of insiders.

Design and Implementation of Wireless LAN Information Sharing Based on SNS (SNS 기반 무선랜 정보 공유 시스템 설계 및 구현)

  • Woo, Yeon-Kyung;Choi, Jun-Hyuk;Park, Jong-Tae
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37C no.9
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    • pp.821-828
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    • 2012
  • Recently, in order to provide the mobile multimedia service cost-effectively, the user's demand has been greatly increasing to use wireless LAN (WLAN). But existing WLAN (Wireless LAN) is vulnerable to attack of outside, as users are connecting AP using Open Authentication. In this article, we have designed and implemented WLAN Information Sharing System using social network service (SNS) which is efficiently managing. WLAN secure key. A proposed WLAN Information Sharing System model has been proposed in which the social trust strength between people is employed for WLAN access control.