Re: really need suggestions for operating on big blocks of d


let me make sure I understand what you want to implement:

You want a block that processes N=6048 BYTES at a time.
The input is x1,x2,x3…,xN
and the output is another N=6048 bytes which are a
permutation of the input block, ie,
such that
Next time another block of N BYTES is input and permuted in the same
way, etc…
The “permutation” function is prespecified and constant
throughout the operation.

Is this correct?

If not, could you please specify exactly the functionality
you want to implement.