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Title: OpenCore has a open-soruce SHA core... Post by: em3rgentOrdr on September 23, 2010, 08:07:48 PM I was browsing OpenCores.org (http://opencores.org) and saw that they have an open-source GPL SHA crypto cores (http://opencores.org/project,sha_core):
Quote Description This is a collection of SHA(Secure Hash Algorithm) cores. These include SHA-1, SHA-2 algorithms. These cores are non-pipelined version of SHA, and have simple interfaces with the host side. Overview
Features
You can download it here (http://opencores.org/download,sha_core). I'm thinking that it would be cool if someone put this on an FPGA (or even fabricated it) and have it set to constantly generate SHA hashes to find bitcoins :). Probably wouldn't be as fast as a TESLA running CUDA bitcoin generation, but the idea of having a dedicated bitcoin generator piece of hardware sounded cool to me :). Anyone have an FPGA and want to try this out? (update: here's another free crypto core - Nugroho Free Hash Cores (http://opencores.org/project,nfhc) (NFHC) currently support SHA-1, SHA-256, SHA-512 from FIPS-180 standard.) Title: Re: OpenCore has a open-soruce SHA core... Post by: nelisky on September 23, 2010, 08:12:46 PM I've been meaning to dive into FPGAs for too long now... if there are no takers that have both the hardware and the time/inclination, I can be bribed into doing this in exchange for a dev board donation :)
I'm just saying... In fact, this could be the start of a company selling bitcoin generators ;) Title: Re: OpenCore has a open-soruce SHA core... Post by: sgtstein on September 23, 2010, 09:06:38 PM Problem for me is, I've got the hardware and software(got it to try this) but haven't been good enough with VHDL to figure out how to interface it between that and Bitcoin.
Title: Re: OpenCore has a open-soruce SHA core... Post by: nelisky on September 23, 2010, 09:13:54 PM Problem for me is, I've got the hardware and software(got it to try this) but haven't been good enough with VHDL to figure out how to interface it between that and Bitcoin. hmmm, for testing I would probably get a UART core and feed the half baked hash, the initial nonce and the 256bit min hash value. It would do one set of parallel hash calculations for incrementing nonces and return the nonce with the lowest hash. This would make interfacing with bitcoin pretty easy, especially after svn r154. Title: Re: OpenCore has a open-soruce SHA core... Post by: em3rgentOrdr on September 24, 2010, 09:10:07 AM I don't have an FPGA, or else I would do it myself...I'd like to see what type of results other people get...
On a related note, the recently released (Sept 20, 2010) Sparc T3 (http://www.oracle.com/us/products/servers-storage/servers/sparc-enterprise/t-series/sparc-t3-chip-ds-173097.pdf) chip has 16 cores, each with a hardware cryptographic accelerator and 8 hardware threads per core... I'm wondering how many Hashes/Sec you could get out of a T3 Server :). (on another related note, it is too bad that since Oracle bought Sun, now all their stuff is closed-source...the Sparc T1 and T2 were open-sourced GPL...) Title: Re: OpenCore has a open-soruce SHA core... Post by: LZ on September 24, 2010, 08:47:25 PM *&^%$# Oracle :-X
Title: Re: OpenCore has a open-soruce SHA core... Post by: Cdecker on September 28, 2010, 11:02:33 AM *&^%$# Oracle :-X +1 |