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Ring oscillators on Silego GreenPAK 4 (whitequark.org)
25 points by jsnell on Aug 5, 2016 | hide | past | web | favorite | 1 comment



Ring oscillators (more specifically, XOR or other mixing operations between at least two oscillators) are a good basis for a TRNG. I've implemented one of my own (source code now lost :() : https://emergent.unpythonic.net/projects/hm2rng with links to an academic paper that still works. the whirlygig rng page appears to have moved to https://warmcat.com/hardware%20design/linux%20peripherals/20...




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