That's about 7x slower, and it will consume ~350 watts. That said, a Radeon 7970 will hit ~ 650 MH for ~399$. It's not even close ~ a computer is required either way btw, you must attach the BFL device to a PC/Laptop. Though why they would do that in the first place might be the better question. I guess though that anyone who was using double SHA256 hashing for passwords for whatever reason would probably not want to do that. To make it even more difficult to conceivably use it for another application, the firmware is locked - though this would be more of a significant delaying factor if someone did manage to come up with a reasonable way to use it for another purpose that was worth the effort. The rest of it is that to maximize efficiency and minimize cost it pretty much does double SHA256 and nothing else - as opposed to a flexible system like an FPGA (field programmable gate array). How big of a deal those items are though is heavily dependent on whether they are optimized for in the design of the chip.
Download macminer password#
The other reasons are that the hash+salt would have to be 80 bytes and would have to start with 4 zero bytes - basically a pathologically small subset of password hashes to be useful. I think part of that has to due with the use of a salt for most password hashes which makes it incompatible with the mining.
I don't even think it could be particularly useful for password cracking since the mining network has been described as "cryptographically incompatible" with SHA256 password cracking. In this case that application is specifically "SHA256(SHA256(x))" (not MD5 or even just SHA256(x) ) within specific parameters. ASIC does stand for Application Specific Integrated Circuit, with the emphasis on the first two words. Not much really, at least not in an easily conceivable way.
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