Huh?
How would showing that the relative error in the approximation
pi(x) = Li(x) + error
(where pi(x) is # primes <=x and Li (x) is the integral from 0 to x of dt / ln(t) )
is O(sqrt(x)ln (x)) rather than some larger function, break any codes?
To crack the RSA system, you need a way to factor numbers that are hundreds, if not thousands, of digits long. AFAIK, the RH does not provide a factoring algorithm.
I based my statement on this article.
http://www.finextra.com/fullstory.asp?id=12452