2014 · 59 citations · 3 references
EngineeringComputer EngineeringElectrical EngineeringComputer SecuritySemiconductor DevicesStorage SystemsMemory DevicesPhysical Unclonable FunctionsRandom Number GenerationDynamic Random-access MemoryDynamic Random-access Memory DesignMemory-based Physical Unclonable FunctionsPhysically Unclonable FunctionsRandom Access Memory (Ram)Random-access MemorySram Physical Unclonable FunctionsTrue Random Number Generation
We introduce a test setup for the extraction of unique identifiers and random bits using DRAM. By utilizing standard 512 MByte DDR3 modules, 400 bit/s of random bits can be generated and unique identifiers are extracted. We show that DRAM can be used as a physically unclonable function. In contrast to SRAM-based PUF, DRAM PUF allow for repeated operations without disconnecting supply voltage while still remaining fully functional for normal storage operations.
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