[Newb] Mask attack on FNV1a-32
#1
Hi guys,

I have 10 hashes of an ASCII string, hashed with FNV-1a 32bit variant, which i'd like to get the original string from back.
I searched the supported hashes list but FNV isn't there, google pointed me to an issue which didn't seem of any relevance.
Is it somehow possible to use Hashcat for this task? I know FNV isn't a cryptographic hash.
Writing my own hashcracker for this seems a really big job, which I'd like to avoid.

I also know that a lot of collisions could be discovered, but it know (parts of) the mask of these string:
/(prefix\.)([a-z0-9_]+.)+([A-Z][a-zA-Z0-9]+)/
This is basically a package name, i can definitely recognize the correct one if it see it. The total length of the string shouldn't be longer than 60 chars.

What are my options if this is not possible with (the current version of) HashCat?
Should i then look into trying to fork and introduce this behaviour myself? If yes, any quick-start pointers on how?

Thank you in advance,
Bert


Messages In This Thread
[Newb] Mask attack on FNV1a-32 - by BertP - 07-14-2018, 09:51 PM
RE: [Newb] Mask attack on FNV1a-32 - by atom - 07-14-2018, 11:03 PM
RE: [Newb] Mask attack on FNV1a-32 - by BertP - 07-14-2018, 11:56 PM