Eric Cooper <ecc@cmu.edu> writes:

> (If you examine the hash_variant function in typing/btype.ml, it's
> clear that any base-223 representation of a multiple of 2^31 in
> which the "digits" are legal identifier characters will hash to
> zero, and will therefore be an "invisible prefix".)

Beware of the birthday paradox: the probability of finding two values
with the same hash is much larger than the probability of finding a
single value with the given hash (a square root of the previous one).

-- 
   __("<         Marcin Kowalczyk
   \__/       qrczak@knm.org.pl
    ^^     http://qrnik.knm.org.pl/~qrczak/