| Summary: | 碩士 === 淡江大學 === 資訊工程學系碩士班 === 99 === More and more companies and scholar begin to get involved in a new topic—Cloud Computing. It is a hot issue in recent year, because in Cloud Computing environment any device which connect to the Internet can get the same service quality. Cloud Computing will be split into a large computing operations hundreds of smaller operations to the remote multi-server operating simultaneously. Through this technology, Internet service providers can in seconds, processing thousands, millions of information, and to provide and "super computer" as a strong service performance. Cloud Computing is a combination of heterogeneous network。Therefore it is necessary to provide a authentication between user and servers in such a large network scale. In this thesis, we provide a mutual authentication scheme between user and servers. Further more, in our scheme user can use the computing resources in Foreign Cloud without registration after the authentication phase. It’s user friendly that user can use various cloud computing resources just using one account. In this way users have no need to register their account in multiple cloud. In this thesis we make a identity-based ID using the information which is related to users. Eliminating the damand for certificate, but also eliminating the time that servers verify the certificate of the user. The proposed scheme provides mutual authentication, backward and forward secrecy, confidentiality, integrity, non-repudiation, and resists replay attack.
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