• Title/Summary/Keyword: 철회

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A Secure and Privacy-Aware Route Tracing and Revocation Mechanism in VANET-based Clouds (VANET 기반 클라우드 환경에서 안전과 프라이버시를 고려한 경로추적 및 철회 기법)

  • Hussain, Rasheed;Oh, Heekuck
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.24 no.5
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    • pp.795-807
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    • 2014
  • Vehicular Ad hoc Network (VANET) has gone through a rich amount of research and currently is making its way towards the deployment. However, surprisingly it evolved to rather more applications and services-rich breed referred to as VANET-based clouds due to the advancements in the automobile and communication technologies. Security and privacy have always been the challenges for the think tanks to deploy this technology on mass scale. It is even worse that some security issues are orthogonally related to each other such as privacy, revocation and route tracing. In this paper, we aim at a specific VANET-based clouds framework proposed by Hussain et al. namely VANET using Clouds (VuC) where VANET and cloud infrastructure cooperate with each other in order to provide VANET users (more precisely subscribers) with services. We specifically target the aforementioned conflicted privacy, route tracing, and revocation problem in VANET-based clouds environment. We propose a multiple pseudonymous approach for privacy reasons and leverage the beacons stored in the cloud infrastructure for both route tracing and revocation. In the proposed scheme, revocation authorities after colluding, can trace the path taken by the target node for a specified timespan and can also revoke the identity if needed. Our proposed scheme is secure, conditional privacy preserved, and is computationally less expensive than the previously proposed schemes.

A Feasibility Study on the Aid and Abet of Providers of Revenue for Copyright Infringement - Focusing on Comparing with the US Cases - (온라인 저작권 침해 수익원 제공자인 광고의 책임에 대한 연구 - 미국 사례와의 비교를 중심으로 -)

  • Kim, Chang-Hwa
    • Journal of Korea Technology Innovation Society
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    • v.20 no.4
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    • pp.1288-1308
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    • 2017
  • When looking at the online copyright infringement, the advertisements have served as a revenue source. Recently, copyright holders and state agencies have requested to stop and withdraw posting the ad. in order to prevent copyright infringement. This way is very easy and efficient. However, the problem is that it is not clear whether the request is appropriate. For the request to be valid, posting the ad. should be a kind of indirect infringement, or if not, it must have a suitable reason. If there is no basis or reason for the two, the request should not be asked recklessly. In the US relevant cases, something more than simple relationship with direct infringers or more material contribution to the direct infringement is required to impose secondary liability for copyright infringement. However, just posting the ad. cannot be considered as the close relationship and moreover, it is not material contribution. Thus, posting the ad. is not secondarily liable for copyright infringement. In addition, the bills which was proposed in 2011, so called SOPA and PIPA, had a provision which can stop and withdraw the ads in the piracy sites. Its opponents raised the following problems: withdrawing the ad. is the censorship, gives the burdensome to the sites, and causes the imbalance due to the overload protection of copyright. Also, under the ad blocker case, to remove the ad. discretionally consists of illegal activity or copyright infringement. As a result, because the request to stop and withdraw posting the ad. is not reasonable, the request should be asked carefully.

축산물위생처리협회지

  • 한국축산물위생처리협회
    • 한국축산물위생처리협회지
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    • no.71
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    • pp.1-1
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    • 2003
  • 도축장에도 등급제 실시 - 축산업체 작업장에 불 - 축산관련 단체장 7명-농림부와 긴급간담회 '축산국 폐지 철회'

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