共查询到20条相似文献，搜索用时 453 毫秒
1.
浅析计算机网络安全与防护 总被引：2，自引：0，他引：2
随着计算机网络的发展,其开放性、共享性、互连程度扩大,网络的重要性和对人们的影响也越来越大,而网络安全问题显得也越来越重要了。本文阐述了当前网络存在的漏洞,同时对当前主要的网络安全技术进行了分析,指出当前的网络安全技术的局限性。最后指出了几种较为前景的网络安全技术,包括可信计算和基于安全语言的防御技术。 相似文献
2.
【目的/意义】为提升科研信息共享效果,研究基于区块链技术的科研信息共享平台构建与运行机制。【方
法/过程】首先利用区块链共同记账技术完成科研信息共享,再通过科研信息解密中心提供公私钥,解密打包科研
信息,提升科研信息共享的安全性,其次利用基于 ITPBFT 共识机制,令区块链内各节点科研信息达成共识,然后
利用区块链技术,构建科研信息共享平台,最后通过开放获取、整合共享、服务对接与绩效评价四个方面,设计科
研信息共享平台服务模式运行机制,提升平台服务效果。【结果/结论】基于区块链技术的科研信息共享平台可有
效共享科研信息,具备较强的恶意攻击抵御能力与较高的科研信息共享安全性,且共享服务效果较优。【创新/局
限】运用区块链技术实现科研信息共享,提升科研信息的综合利用率,科研信息共享平台,对于科技创新具有重大
意义。 相似文献
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《The Journal of High Technology Management Research》2023,34(2):100468
As time went on, technological progress inevitably altered our daily routines. Many new technologies, such as the Internet of Things (IoT) and cryptocurrency, offer revolutionary possibilities. To put it simply, the blockchain is a distributed, public, and auditable database that can be used to record financial transactions. The IoT, or “Internet of Things,” is a system of interconnected electronic devices that can communicate with one another and be remotely monitored and handled. This paper reviews the most recent findings in the field of blockchain and Internet of Things with the goal of examining blockchain as a possible answer to secure IoT data management within supply networks. There is a dearth of literature in the early stages of both blockchain and IoT study because they are such novel topics. The study's findings suggest that in order to improve their leadership quality to intentionally impact employee performance, industry managers should pay attention to human resource management indicators like collaboration, involvement, actualization, perception, and teamwork. This is primarily because of the inherent limitations of IoT devices and the distributed ledger architecture of the blockchain technology. There is potential for IoT to provide many advantages if blockchain capabilities can be optimized for it. 相似文献
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徐静 《中国科学院研究生院学报》2008,25(5):611-614
Ad Hoc网是一种不依赖于任何固定基础设施、没有中心控制节点、计算资源受限的新型无线移动网络。最近王晓峰等学者提出了一个新的适用于Ad Hoc网的具有口令认证和共享口令进化的多方密钥协商协议,并认为他们的协议是安全而高效的。然而我们发现这一协议存在严重的安全缺陷：不能抵抗离线口令猜测攻击和伪造攻击;不能提供前向安全性和后向安全性;不能动态更新群组成员的密钥。 相似文献
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随着高校信息化建设水平的不断提高,无线网络已经成为校园网方案的一个重要组成部分.本文对校园无线网的接入问题进行研究,并对校园无线网络的安全问题进行了剖析,给出了一种相对安全的无线校园网解决方案. 相似文献
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【目的/意义】在国家安全观总体背景下,数字政府建设对数据安全提出了更高的要求。政府数据协同治理
过程中的政府数据资源开放和共享存在一定程度的安全隐患,将区块链技术应用到政府数据开放共享平台的构建
中,可应对开放共享过程中存在的数据安全问题,从而进一步充分发掘政府数据价值,保证数据安全并释放数据红
利。【方法/过程】本文利用区块链技术分布式、透明性、可追溯性和公开性等特点进行政府数据开放共享平台构建,
并研究其运行机制,以碳交易数据协同治理为例,探究区块链技术下政府数据开放共享平台在政府数据协同治理
中的价值体现。【结果/结论】基于区块链技术构建的政府数据开放共享平台与运行机制有助于强化政府部门和非
政府部门之间的协作,明确政府数据开放共享和数据协同治理过程中的数据标准、归属权、可信度等问题。【创新/
局限】运用区块链技术为国家安全观背景下的政府数据协同治理及开放共享提供强有力的数据安全保障。 相似文献
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资源耗竭攻击是移动无线网络中一个最为重要的安全问题.本文主要讨论了移动无线网络下防止资源耗竭攻击的一些方法,具体介绍了一种安全高效的防止资源耗竭攻击的通信方式. 相似文献
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This conceptual paper explores the impact of blockchain technology on public sector processes through the lens of information security. It includes an overview of the evolution of e-government, a synopsis of existing applications of blockchain technology, and innovative blockchain developments. We utilize the Confidentiality-Integrity-Accessibility (CIA) triad to guide our discussion of the security, governance, and regulatory implications of this technology. Leveraging the CIA triad model, we provide context for public managers who may consider blockchain technologies, and we highlight certain advantages arising from the “non-reputability” of distributed ledgers.In particular, we highlight the advantages of blockchain technologies with regards to non-reputability to help public managers understand how to best leverage blockchain technology to transform operations. 相似文献
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随着国内外政治、治安局势的不断变化,城市高清网络视频监控系统已经成为公安机关依法履行职能打击违法犯罪的一个重要手段。本文介绍了一种城市高清网络视频监控系统建设方案及技术要求,并以此为框架进行概括总结,系统基本分为前端监控资源采集、监控资源接入、联网集中管理平台、图像资源存储以及图像资源共享平台建设等部分。 相似文献
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随着计算机网络的发展,网络安全问题越来越重要。信息处理能力的提高,使得网络系统的连结能力也在不断地提高,但在连结、流通能力提高的同时,基于网络连接的安全问题也日益凸显。 相似文献
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【目的/意义】构建基于区块链技术的供应链信息资源共享模型,突破供应链交易过程中存在的信息不对
称瓶颈,实现去中介的互信交易。【方法/过程】基于区块链的智能合约、分布式账本、共识机制等技术提出供应链信
息资源共享模型。采用设计科学研究理论,基于区块链技术对信息资源共享平台系统原型进行了深入探讨。【结
果/结论】深化区块链技术在供应链管理领域的实践应用,提供了一个弹性、可移植的多方共享并参与维护的信息
资源共享平台,供应链企业通过信息资源共享平台有效减少信息不对称,提高供应链运行效率。【创新/局限】将区
块链技术和供应链相结合,深化了区块链理论在供应链管理领域的应用。拥堵问题可能导致本系统的效率较低,
第三方信息交易平台同系统的接口还需要进一步完善。 相似文献
13.
The economic development of rural India requires connecting remote villages to local and global supply chains. Yet, high rates of financial exclusion inhibit rural Indians from participating in these supply networks. We review the literature on financial inclusion, adoption, and blockchain in India, and posit that to resolve financial exclusion, the four challenges of geographical access, high cost, inappropriate banking products, and financial illiteracy need to be overcome. Next, we argue that blockchain technologies hold the potential to overcome most of these challenges. However, for blockchain technologies to become the cornerstone of financial inclusion initiatives, an understanding of technology adoption in India is needed. To guide the development of such understanding, we develop a research agenda on the antecedents of adoption, adoption patterns, and outcomes of adoption. Answering these research questions will lead to a nuanced understanding of adoption of blockchain-based technologies in rural India. The practical contribution of this paper is the discussion of how blockchain can alleviate the issue of financial exclusion in rural India, thereby providing a basis for a solution that could connect rural Indians to global supply chain networks. The theoretical contribution lies in the identification of knowledge gaps that should be answered to achieve financial inclusion of rural Indians. 相似文献
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David Berdik Safa Otoum Nikolas Schmidt Dylan Porter Yaser Jararweh 《Information processing & management》2021,58(1):102397
Blockchain technologies have grown in prominence in recent years, with many experts citing the potential applications of the technology in regard to different aspects of any industry, market, agency, or governmental organizations. In the brief history of blockchain, an incredible number of achievements have been made regarding how blockchain can be utilized and the impacts it might have on several industries. The sheer number and complexity of these aspects can make it difficult to address blockchain potentials and complexities, especially when trying to address its purpose and fitness for a specific task. In this survey, we provide a comprehensive review of applying blockchain as a service for applications within today’s information systems. The survey gives the reader a deeper perspective on how blockchain helps to secure and manage today information systems. The survey contains a comprehensive reporting on different instances of blockchain studies and applications proposed by the research community and their respective impacts on blockchain and its use across other applications or scenarios. Some of the most important findings this survey highlights include the fact that blockchain’s structure and modern cloud- and edge-computing paradigms are crucial in enabling a widespread adaption and development of blockchain technologies for new players in today unprecedented vibrant global market. Ensuring that blockchain is widely available through public and open-source code libraries and tools will help to ensure that the full potential of the technology is reached and that further developments can be made concerning the long-term goals of blockchain enthusiasts. 相似文献
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在无线传感器网络中,基于分簇的路由协议在节能和数据融合方面有突出表现,但其网络通信的可靠性和安全性在很大程度上依赖簇头,造成了严重的安全隐患.针对这一问题,本文提出了一种新的基于入侵检测的无线传感器网络安全系统体系结构,并具体阐述了基于该体系结构的WSN安全系统运行原理. 相似文献
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【目的/意义】为了完善电子商务信用体系,优化电子商务环境,提高电子商务活动的安全性,提出基于区块链技术的在线电子商务信用信息共享方法。【方法/过程】本文首先构建了在线电子商务信用信息共享平台构架,通过将数字区块链技术和交易区块链技术融入到在线电子商务信用信息共享平台中,由数字区块链技术完成数据信息预处理过程,并利用拜占庭容错机制构建共识模型,保障在线电子商务信用信息共享平台的稳定性;由交易区块链技术中的盲签名算法提高信用信息的安全性和共享效率,实现电子商务信用信息的共享。最后,通过对比实验,对所提出的电子商务信用信息共享方法进行测试。【结果/结论】实验结果表明,所提方法的通信开销小、吞吐量高、时延小、安全性高、实用性强。【创新/局限】由于本文未结合实际案例对所提方法进行验证,研究结论具有一定局限性,因此今后需进一步深究与探讨。 相似文献
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在Intel的迅驰发布以后,其强大的市场推动力导致无线网络技术的发展越来越快.然而由于种种原因,无线网络信息存在着泄露的危险.本文阐述了无线网络发展的现状,分析了无线网络中存在的不安全因素,并提出了相关的解决方案. 相似文献
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介绍了无线传感器网络及密钥管理性能评价指标并着重介绍了三种比较典型的密钥管理方案。密钥管理方案是无线传感器网络最主要的安全保障之一,方案设计得好坏直接影响着无线传感器网络的信息安全和信道的畅通。 相似文献