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1  Bitcoin / Hardware / Re: Project Evil Genius – Custom SHA2-256 Circuits on a FPGA on: September 11, 2013, 03:48:30 PM
Quote from: fpgaminer on September 11, 2013, 10:11:21 AM
Quote from: JuniorJack on September 11, 2013, 09:49:48 AM
Hi,

Thanks! So the only chance to have performance boost is to fit 2 or more sha instances to run in parallel, but with unrolled SHA1, it might not be possible to fit it all.

BR

https://github.com/fpgaminer/sha1_collider

Thank you! Will check it out.

Regards
2  Bitcoin / Hardware / Re: Project Evil Genius – Custom SHA2-256 Circuits on a FPGA on: September 11, 2013, 09:49:48 AM
Quote from: Dexter770221 on September 10, 2013, 07:37:41 PM
Quote from: JuniorJack on September 10, 2013, 11:34:50 AM
Quote from: fpgaminer on July 18, 2013, 01:25:33 AM
I coded up a quick SL3 cracker about a year ago.  It either ran on my Spartan 6 devkit, or the X6500, I can't recall.  I could probably dump the code to github if people are interested.  I didn't optimize it particularly well, just got it working.

Hi,

Is it possible to run SHA-1 in single clock cycle, similar to the SHA256 in your implementation ? And what is the max clock of
say Spartan 6 ? 1000 Mhz ? If yes, this means single xtex quad board can match a single ATI 5970, which is not that bad.

BR
Max LUT speed at Spartan6 is 400MHz. Additional delays with routing and whole project runs at max 200MH.

Hi,

Thanks! So the only chance to have performance boost is to fit 2 or more sha instances to run in parallel, but with unrolled SHA1, it might not be possible to fit it all.

BR
3  Bitcoin / Hardware / Re: Project Evil Genius – Custom SHA2-256 Circuits on a FPGA on: September 10, 2013, 11:34:50 AM
Quote from: fpgaminer on July 18, 2013, 01:25:33 AM
I coded up a quick SL3 cracker about a year ago.  It either ran on my Spartan 6 devkit, or the X6500, I can't recall.  I could probably dump the code to github if people are interested.  I didn't optimize it particularly well, just got it working.

Hi,

Is it possible to run SHA-1 in single clock cycle, similar to the SHA256 in your implementation ? And what is the max clock of
say Spartan 6 ? 1000 Mhz ? If yes, this means single xtex quad board can match a single ATI 5970, which is not that bad.

BR
4  Other / Beginners & Help / Re: Bitcoin Businesses and Developers, Let's Get Started! on: September 09, 2013, 12:44:18 PM
Hello,

I am interested in the bitcoin crypto, the mining process and custom fpga development. Would love to be able to post in the mining hardware section. Thank you!

Regards, Chris
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