1. Svigals, J., Smart Cards: The Ultimate Personal Computer, Macmillan, 1985.
2. Matsumoto, T., Kato, K. and Imai, H., “Smart cards can compute secret heavy functions with powerful terminals,” (written in Japanese with an English abstract) Proc. of 10
thSymposium on Information Theory and Its Applications, Enoshima-Island, Japan, pp.17–22, Nov.19–21, 1987.
3. Rivest, R., Adleman, L. and Dertouzos, M., “On databanks and privacy homomorphisms,” Foundations of Secure Computation. Demillo, R.A. et al., editors, Academic Press, pp.168–177, 1978.
4. Brickell, E.F. and Yacobi, Y., “On privacy homomorphisms,” Advances in Cryptology-EUROCRYPT’87, Chaum, D. and Price, W.L. editors, Springer-Verlag, pp.117–125, 1988.
5. Ahituv, N., Lapid, Y. and Neumann, S., “Processing encrypted data,” Communications of the ACM, Vol.30, No.9, pp.777–780, Sep. 1987.