7z2hashcat

[gaidzak]

Thanks for the feedback.

So if I understood you correctly everything works correctly now.

The only "problem" you did experience in very rare situation is a very high upper limit in file size (8KiB compressed data). This seems to be a sane value and if the data was compressible and of average file size that limit should never be reached.

Anyway, an advanced user should be able to increase that limit to a higher value (higher than the current 8KiB value) by just increasing these values with a small source code fix (at his/her own risk, the risk is that it might use much more RAM depeding on the value he/she chooses).

Modify the parsing function in src/interface.c:

Code:

https://github.com/hashcat/hashcat/blob/922fea7616255b3cc3603cebd5f3c0bb00654668/src/interface.c#L11394

the memory buffer (divided by 4 because of u32 data type) within the hook function in src/interface.c:

Code:

https://github.com/hashcat/hashcat/blob/922fea7616255b3cc3603cebd5f3c0bb00654668/src/interface.c#L14325

Increasing the value of DISPLAY_LEN_MAX_11600 (times 2 because of hex bytes) in include/interface.h:

Code:

https://github.com/hashcat/hashcat/blob/922fea7616255b3cc3603cebd5f3c0bb00654668/include/interface.h#L1104

Thanks

Not to bring about an ancient thread out of existence, but any luck in getting large files in being decrypted?

Meaning I have a 92 megabyte file, when I check the contents of the file, it's 810 megabytes uncompressed. 
The unfortunate error I receive is 

$ ./7z2hashcat.pl QUEEN.7z 
WARNING: the file 'QUEEN.7z' unfortunately can't be used with hashcat since the data length
in this particular case is too long (92450992 of the maximum allowed 327528 bytes).

Or am I doing something wrong? Any help would be appreciated, or sent to the right spot. 

i tried this both with the 64 bit windows binary, and a cygwin perl version. Both resulted in the same issue.

Thanks