| Summary: | 碩士 === 世新大學 === 資訊管理學研究所(含碩專班) === 94 === The rapid diversified developments of the intrenet in Electronic Commerce, Electronic Payment, Electronic Auction, On-Line Communities and Cooperate Portal create a lot of business chances and bring more conveniences on business as well as a big change of the way of human life. At present more and more enterprises integrated their intranet and internet to do business and provide the service with their customer by single sign-on to logon their portal. The customer can access their information easily by single sign-on system. When we use the single sign-on systems, we can access the information by only one account. Therefore, it’s more convinced for us to access data and reduce the risk. At the same time, the role-based access control have some characteristics of controlling efficiently, simplifying management, and maintaining easily. It has improved the efficiency of management of access control. The focus of this thesis is the web based single sign-on system that customers can access different web sites in an enterprise and they only have to authenticate one time, and combine with role-based access control, let the scheme of study can be more integrity.
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