Access control mechanisms are widely used to secure the computer and network resources
from attacks like leakage of sensitive information and denial of services. It differentiates the …

With the advancement of web services technology, security has become an increasingly
important issue. Various security standards have been developed to secure web services at …

Web services are independently written and managed, each with its own access control
policy, thus it is challenging to control the access to the information they own. A particularly …