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Attack of the clones: If you were relying on older Xilinx FPGAs to keep your product's hardware code encrypted and secret, here's some bad news

Anonymous Coward
Anonymous Coward

Kudos to the author for his understanding of FPGA architecture and a highly readable description of what is going on.

Since the flaw affects 7 series devices which are still mainstream for smaller applications, and embedded FPGA applications (e.g. network switches) can have a long production & service life, this is probably quite a big deal when it comes to the risk of knockoff kit being made. With the ability to clone the bitstream, it would be possible to make a fake switch that is operationally identical to the genuine item, perhaps also being able to accept the original vendor's firmware upgrades.

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