Re: SHA256d IC design question

Quote from: NODEhaven on March 28, 2018, 02:51:12 PM

This one is interesting. Not sure if their exact approach applies, but this 2017 paper shows power and efficiency improvements on the order of 300% for a modelled cryptographic implementation using asynchronous clocks.

https://www.sciencedirect.com/science/article/pii/S2090123217301170

This paper is about a way of implementing GALS (Globally Asynchronous Locally Synchronous) logic. IMO it won't help at all for SHA256D. It could probably work for something like scrypt() which is a sandwich of two layers of PBKDF2 with Salsa20 in the middle. Fixed length SHA-256 like in Bitcoin is too trivial to be susceptible to such advanced optimizations.