Public-Key Cryptosystem Based on Isogenies. - Alexander Rostovtsev; Anton Stolbunov (IACR Cryptol. ePrint Arch., 2006)

Constructing public-key cryptographic schemes based on class group action on a set of isogenous elliptic curves. - Anton Stolbunov (Adv. Math. Commun., 2010)

Improved algorithm for the isogeny problem for ordinary elliptic curves. - Steven D. Galbraith; Anton Stolbunov (Appl. Algebra Eng. Commun. Comput., 2013)