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On the other hand, GPI/DEVICE layers propose a set of services called ‘'SRED” allowing Agnos Framework to deleguate sensible data manipulation outside a L2 applicative area. This is appropriate for specific phyiscal architectures where L2 is not protected and its execution issplit into 2 parts: an applicative node and a secured node. In that case, ‘'SRED’' services are encapsulated in the secured node and exposed to L2 through RPC calls, for example.