Basically after ~10 rounds the output is always indistinguishable from randomness which means hamming distance is what you'd expect (about half the bits differ) between the hashes of any two bitstreams.
If you are only worried about random errors, might as well use chksum.
Basically after ~10 rounds the output is always indistinguishable from randomness which means hamming distance is what you'd expect (about half the bits differ) between the hashes of any two bitstreams.