We present efficient algorithms for computing discrete logarithms in the classgroupofaquadraticorderandforprincipalitytestinginarealquadraticorder,based on the work of D
We investigate some of the algebraic properties of the SAFER block cipher when the message space is considered as a Z-module. In particular we consider the invariant Z-submodules ...
We present an algorithm to compute the zeta function of an arbitrary hyperelliptic curve over a finite field Fq of characteristic 2, thereby extending the algorithm of Kedlaya for ...