More info on the construct here:
I hope this isn’t the one with the creepy-sounding NSA backdoor?
Presumably you are talking about the discussion five years ago about a potential backdoor in a psuedo-random number generator that no was was going to use , which has recently made the rounds again on HN.
If that’s the case, don’t worry. The same guy said this SHA-3 hash function is a good one .