An Efficient Digital Signature Scheme Based on an Elliptic Curve Over the Ring Z<sub>n</sub>.

Tatsuaki Okamoto Atsushi Fujioka Eiichiro Fujisaki An Efficient Digital Signature Scheme Based on an Elliptic Curve Over the Ring Z<sub>n</sub>. 54-65 http://dx.doi.org/10.1007/3-540-48071-4_4 1992 conf/crypto/1992 CRYPTO db/conf/crypto/crypto92.html#OkamotoFF92