How to generate hashes for directory content (files) not crack them ?

[Chick3nman]

In this case, GPUs will actually NOT be faster. Since the archives are very large, you will lose a lot of the things that make GPUs faster for password cracking when trying to load them in and calculate their hashes. Just look at the difference between the optimized speeds(-O) and the pure kernel speeds. For SHA256 the optimized kernel is limited to 55characters i believe, where the pure is out at 256characters for its limit. The drop in speed from a 55char pass to a 256char pass being supported is incredible. Now imagine a password that's 1billion characters long because its actually the binary data from an archive. Yeah, no. Far better off using CPUs imo.