Reliable Transactions in Serverless-Edge Architecture
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With a growing interest in edge applications, such as the Internet of Things, the continued reliance of developers on existing edge architectures poses a threat. Existing edge applications make use of edge devices that have access to limited resources. Hence, they delegate compute-intensive tasks to the third-party cloud servers. In such an edge-cloud model, neither the edge devices nor the cloud servers can be trusted as they can act maliciously. Further, delegating tasks to cloud servers does not free the application developer from server provisioning and resource administration. In this paper, we present the vision of a novel Byzantine Fault- Tolerant Serverless-Edge architecture. In our architecture, we delegate the compute-intensive tasks to existing Serverless cloud infrastructures, which relieve us from the tasks of provisioning and administration. Further, we do not trust the edge devices and require them to order each request in a byzantine fault-tolerant manner. Neither do we trust the serverless cloud, which requires us to spawn multiple serverless cloud instances. To achieve all these tasks, we design a novel protocol, ServerlessBFT. We discuss all possible attacks in the serverless-edge architecture and extensively evaluate all of its characteristics.
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