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Application Research on Desktop Security Related Technologies

Author: ZhaoYanBo
Tutor: WeiZhenGang
School: Ocean University of China
Course: Applied Computer Technology
Keywords: Digital envelope Safe passage Secure Sockets Layer USB cryptographic keys Public key cryptography infrastructure
CLC: TP393.08
Type: Master's thesis
Year: 2009
Downloads: 72
Quote: 3
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Abstract

With the rapid development of information technology, computer and network has become an indispensable tool for daily office, an important part of life, information exchange. Computer and network at the same time improve people's working efficiency, facilitation of a variety of information brought to mankind sensitive private information storage, transmission, and access control a greater threat. According to statistics, more than 85% of the security threat from the internal network from the user's desktop. Due to the weak awareness of people to network security, cybercrime, intelligent improve the user's desktop has become the bottleneck of the network security has become the weak point to guard against all kinds of cyber attacks, the overall security of the network can not be guaranteed. How convenient and effective control of sensitive equipment and information access permissions, and how to ensure that the storage or transmission of information will not be stolen or tampered with, and how to authenticate the user's identity is not forged the current problems to be solved. The desktop security involving system security (including the operating system, security, etc.), data security (including secure storage and secure transmission of data) and content security (including killing the virus, firewall, and intrusion detection, etc.), this article is offline security (digital envelope ) technology, online safety (safe passage) technology and authentication technology and data security technology to explore the problem of how to solve their own method and can be achieved through the actual system. First, learn summarizes basic password theoretical knowledge, password theoretical knowledge of the basic tools to build a variety of security models. Secondly, the analysis of the basic theory of offline security technologies, especially digital envelope technology; discussed a secure file distribution system based on the digital envelope technology, safety features of the file system to ensure that private information confidentiality, integrity, authentication, non-repudiation . In practical projects, combining hardware smart cryptographic token (USB Key), the encryption application interfaces with Microsoft CryptoAPI to realize the package encryption of the file and re-opened the decryption process. Again, the analysis of a secure channel technology, summed up the secure channel technology model; safe passage typical applications - Virtual Private Network (VPN) technology; SSL VPN technology and its basic form - Web reverse proxy. Involved in specific projects, focused on the design and implementation of the key technologies of the SSL VPN gateway. Finally, the analysis of the identity authentication technology goals, summed up the current domestic and international popular authentication technology and its technical comparison and development; analyzed more popular USB Key PKI authentication technology, security analysis, summarized its technology prototype and vulnerability, and suggest improvements to the technical program. Desktop security is the most close to everyone's safety, \

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