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The use of web services becomes important. Since web services may be provided by unknown providers, many researchers designed mechanisms to ensure secure access of web services. Existing mechanisms generally statically decides whether a requester can invoke a web service but ignore the importance of dynamically preventing information leakage during web service execution. This paper proposes a lattice-based...
Requesters invoke web services to accomplish complicated functions. A complicated function should be decomposed into sub-functions, in which each sub-function can be accomplished by a web service. After that, web services are selected to compose a path to accomplish the complicated function. When composing web service paths, secure access of web services should be considered. Current web service access...
More and more software systems based on web services have been developed. Web service development techniques are thus becoming crucial. To ensure secure information access, access control should be taken into consideration when developing web services. This paper proposes an extended XACML model named EXACML to ensure secure information access for web services. It is based on the technique of information...
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