It is an approach to make applications more responsive to meet the requirement of changing business environment. As per SOA, services are repeatable business task which combines in a series to meet the consumer demand. This series of the services are called as business application.
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Securing all these services of an application is difficult task. Security requirements should be managed when an application is used locally or in conventional closed systems so that security can be applied to corresponding message.
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Service oriented architectural project uses different services to build an application. These services are independent of the implementation which causes different security configuration for the services within an application.
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In this case, Message level security can be used for end to end security implementation. Mukhtiar Memon University of Innsbruck, Austria. Ruth Breu University of Innsbruck, Austria. Abstract: Decentralized security models and distributed infrastructures of scenarios based onService Oriented Architectures make the enforcement of security policies a key challenge - all the more so for business processes spanning over multiple enterprises.
The current practice to im-plement security functionality exclusively at the endpoint places a significant processing burden on the endpoint, renders maintenance and management of the distributed security infrastructurescumbersome, and impedes interoperability with external service requesters.
To meet these challenges, we propose a reference security architecture that transposes the model of Software as aService to the security domain and thereby realizes Security as a Service SeAAS.
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We illustrate the concepts of SeAAS at work with the requirement of fair non-repudiation. Keywords: security as a service, security requirements, service oriented architecture.
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