In this article we present the work performed under the first development period of the PrEstoCloud framework as far as security aspects are concerned. PrEstoCloud aims to deliver a framework which allows the deployment of complex applications on top of diverse computational resources which span from data center resources to edge resources. For such an operational environment with diverse resource types it is important to provide proper mechanisms that guarantee a certain level of security on multiple layers of the architecture. The security mechanisms providing this multi layered protection in PrEstoCloud are the following: a) perimeter security, b) end-to-end encryption and c) adoption of TPM based trusted computing.
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