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Web Services have been gathering an increasing amount of attention lately. However, service providers may not trust users to use their services correctly, whether this misuse happens through malice, stupidity, or oversight is unimportant. It may affect the state of the services with which they interact and can thus cause problems. For example, a single user communicates with a hotel-booking service...
We investigate the bootstrapping of policy-based access control in a deny-by-default mission-critical MANET. In the absence of any initial policies, a deny-by-default system fundamentally prevents all traffic flow. Providing all policies prior to deployment assumes advanced knowledge of all possible future scenarios - an assumption that is often unrealistic in practice; furthermore, policies may change...
PKI (public key infrastructure) bases on cryptography as its theoretic fundamental, it provides identity authentication, confidentiality, integral and non-repudiation service, it is the important credible and authorized safety platform of network application and it provides information safety assurance for network activities. The paper designs user certificate in PKI, mainly discusses potential safety...
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