Supporting Security in an Electronic Market System on the Base of Web Services

Security is a precondition for the success of an electronic market system. Unless the system is able to provide some mechanism to ensure authentication, authorization, and secure data transmission, the system will have problems to be accepted by both customers and providers. In this paper, we will discuss some ideas how to add security to a distributed electronic market system that is designed platform-independently on the base of web services. We will show how we have implemented these ideas in a system for an electronic market for scientific literature.