Importance

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Abstract

The present invention describes a gateway in an Open Service Access (OSA) network where Service Level Agreement (LSA) checks are performed by a Framework (15) on a Central Gateway node (1). A distinction is made between applications (10) that can be trusted, like applications provided by the same firm as the gateway, and other applications (12) that are not trusted for security reasons. Access request coming from the applications for accessing Service Capability Servers (SCSs) (4, 5) are checked by the framework (15). Now the trusted applications (10) can get direct access to the Service Capability Servers (4, 5), but the untrusted applications (12) are only allowed to access so-called proxy SCSs (9) on the Central Gateway node (1). The proxy SCSs (9) have the same interface as the SCSs (4, 5) running on the distant nodes (2, 3), and are downloaded by the Framework (15) from the distant SCS nodes (2, 3) to the Central Gateway node (1) during an initialization phase.

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First Claim