PostQuantum Lattice-based schemes and Nguyen-Regev like attacks
NTRUSign does not have a security reduction of the type "if one can break the scheme then one can find short vectors in some lattice."  There are several other lattice schemes that do have such a reduction, and are therefore unaffected (as far as we know) by the Nguyen-Regev attack.  If they were affected, then we would have a better algorithm fro finding short vectors in lattices.