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+--- Thread: Partial SHA1 hash match - arbitrary prefix length (/thread-11735.html)
Partial SHA1 hash match - arbitrary prefix length - ik80 - 12-18-2023
Hi All,
Can someone with good understanding of hashcat/openCL please give me a few pointers?
I need to brute force partial prefix SHA1 match of arbitrary length.
Here's a thread with a patch that is doing exactly that but for fixed first 8 bytes of the hash: https://hashcat.net/forum/thread-7794.html It is almost what I need, just want to pass the length of the partial match to the kernel.
Thanks a lot in advance!
RE: Partial SHA1 hash match - arbitrary prefix length - penguinkeeper - 12-18-2023
It's not particularly easy but is certainly doable. Do you know what length matches you'll be aiming for?
RE: Partial SHA1 hash match - arbitrary prefix length - ik80 - 12-18-2023
Up to ten prefix bytes out of 20 of the SHA1 hash. I'll make a PR if I manage to hack it in.