Research On PKI Secure Certification Model And Application In The Grid Environment

With the popularization and development of e-commerce of network application of the computer, Internet has already become very important in people's life. With the opening of network, how to ensure the security of mutual information, how to solve the trust and user's identity authentication , the question of authorize become the topic that people care about and important subject which the government, enterprise of various countries pay close attention to and study.Public Key Infrastructure is the best system of the present guarantee network social safety. PKI can solve most security problems, and has formed a set of intact solutions tentatively, it establishes the system of security that stands up public key theory and technology, general and right security infrastructure offered information security service, such as the whole development strategies of the E-government, e-commerce and national informationization, etc. PKI, as the infrastructure of the national informationization, is the total of relevant technology, using, organizing, standardizing and laws and regulations. The core of PKI is to solve the trust problem in the information cyberspace, confirm various kinds of economy , military and only , authenticity and legitimacy of the identity of administration behavior subject (include organizations and individuals) in information cyberspace, protect the security interests of different subjects in information cyberspace.Public key cryptography supports security mechanisms such as confidentiality, integrity, authentication, and non-repudiation. However, to successfully implement these security mechanisms, these security mechanisms must be managed by carefully plan an infrastructure. A public key infrastructure (PKI) is a foundation on which other applications, system, and network security components are built. A PKI is an essential component of an overall security strategy that must work in concert with other security mechanisms, business practices, and risk management efforts.The main innovative achievements are described as follows:1) A new PKI secure Certification model is presented with emphasis on the architecture of the PKI secure certification model, based on analyzing the normal PKI Certification model. It provides a new valuable way of the construction of the national-level PKI secure certification model in the open networks. 2) A new CA unilateral certification and Bidirectional Certification based on PKI are present on the Grid environment. It can provide a good trusted way to avoiding various problems caused by a lot of certifications.3) The research of PKI Secure Certification Model and Application on the Internet Environment, Design and Develop of Lock of File Encrypting Based on public Key Infrastructrue.