the Internet has been becoming the most important infrastructure for distributed applications which are composed of online services. In such open and dynamic environment, service selection becomes a challenge. The app...
详细信息
the Internet has been becoming the most important infrastructure for distributed applications which are composed of online services. In such open and dynamic environment, service selection becomes a challenge. The approaches based on subjective trust models are more adaptive and efficient than traditional binary logic based approaches. Most well known trust models use probability or fuzzy set theory to hold randomness or fuzziness respectively. Only cloud model based models consider both aspects of uncertainty. Although cloud model is ideal for representing trust degrees, it is not efficient for context aware trust evaluation and dynamic updates. By contrast, Bayesian network as an uncertain reasoning tool is more efficient for dynamic trust evaluation. An uncertain trust model that combines cloud model and Bayesian network is proposed in this paper.
Enterprises outsourcing their databases to the cloud and authorizing multiple users for access represents a typical use scenario of cloud storage services. In such a case of database outsourcing, data encryption is a ...
详细信息
Recently,Rhee,Kwon and Lee proposed a practical authentication scheme only based on the common storage *** the scheme the remote user does not need to use smart *** is convenient for the users to use a common storage ...
详细信息
Recently,Rhee,Kwon and Lee proposed a practical authentication scheme only based on the common storage *** the scheme the remote user does not need to use smart *** is convenient for the users to use a common storage device such as a universal serial bus *** scheme is easy to ***, this authentication scheme is vulnerable to impersonation attacks and middle man *** attacker could impersonate legitimate users to login and access the remote *** addition,we analyze the security of Fan-Chan-Zhang's *** scheme suffers from replay attacks and impersonation attacks.
暂无评论