Question about sha256 and AMD kernels
(09-07-2021, 11:34 AM)Snoopy Wrote: do we "really" talking about hex like strings?
so in your example:

sha256('ffffffffffffffff0000000000000000') = 9d16bfa811f70a01d13ecbe0bb081c80f89e37b72383566740ef849617e80ab2
sha256('FFFFFFFFFFFFFFFF0000000000000000') = 5219f4e314c19218f9eb9393c077c8858caff6b546e142c8cfc4c936bec769d6

upper / lower case letters possible in such strings? or do we talk about a hex representation of the found password?

even when just appending the 8 times 00 per rule, the first half, 8 times 00 to ff or FF or mixed (as string) is quite a huge keyspace, it is 16^16 and should be result in an overflow by hashcat

it's just lowercase letters/chars 0123456789abcdef, first 8 bytes of output "array", as in example,
last 8 bytes of array is always 00 00 00 00 00 00 00 00

mask that i put in example, goes pretty quick on hashcat, but results in "exhausted" ...

i'm gonna find some known hash/result and put it in ...
just on thing i'm not sure - is my mask good ?

-a 3 -1 0123456789abcdef -2 0 ?1?1?1?1?1?1?1?1?2?2?2?2?2?2?2?2
-a 3 -1 0 ?h?h?h?h?h?h?h?h?1?1?1?1?1?1?1?1

should be basically the same, as "h" = 01234567890abcdef

Messages In This Thread
Question about sha256 and AMD kernels - by alexxx - 09-06-2021, 08:01 PM
RE: Question about sha256 and AMD kernels - by alexxx - 09-07-2021, 06:30 PM