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This tag should be used for questions related to mining rigs, CPUs, GPUs, FPGAs, and ASIC miners, as well as the production, and producers of such goods.

1
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Most bitcoin ASICs take as input a SHA256 chaining value and a 480-bit block, and they try every possible 32-bit suffix to check if SHA256(SHA256(block + suffix)) begins with sufficiently many zero bi …
answered Oct 26 '17 by Charles Bouillaguet
0
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TL;DR: Yes, bitcoin ASICs can serve cryptanalytic purposes. They could be used to speed up a cryptanalytic attack that requires a lot of random bit-strings whose SHA256 begins with many zero bits. Bi …
answered Oct 7 '17 by Charles Bouillaguet
0
votes
You could use your obsolete mining hardware to help cryptographers find some collision for the sha256 hash function. See this page for the relevant project.
answered Oct 7 '17 by Charles Bouillaguet