math/ntl 11.6.0p0 OpenBSD

NTL is an object oriented library for number theory, written by Victor Shoup. It provides objects and methods for - arbitrary length integers - finite fields - polynomials over fields - extensions of fields.

NTL's lattice reduction code is also one of the best available anywhere, in terms of both speed and robustness, and one of the few implementations of block Korkin-Zolotarev reduction with the Schnorr-Horner pruning heuristic. It has been used to "crack" several cryptosystems.