Gotcha! I Know What You are Doing on the FPGA Cloud: Fingerprinting Co-Located Cloud FPGA Accelerators via Measuring Communication Links. (arXiv:2305.07209v1 [cs.CR])

In recent decades, due to the emerging requirements of computation
acceleration, cloud FPGAs have become popular in public clouds. Major cloud
service providers, e.g. AWS and Microsoft Azure have provided FPGA computing
resources in their infrastructure and have enabled users to design and deploy
their own accelerators on these FPGAs. Multi-tenancy FPGAs, where multiple
users can share the same FPGA fabric with certain types of isolation to improve
resource efficiency, have already been proved feasible. However, this also
raises security …

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