A Layered Broadcast Cryptographic System
A new type of cryptosystem is presented that may find application in broadcast communication networks and database systems. To date, all proposals for such systems have either been shown to be weak under cryptanalytic attack or to possess undesirable characteristics such as data expansion. The new scheme is a layered system that is a concatenation of SP-networks and Hill broadcast encryption and is referred to as an SP-Hill cryptosystem. Tests carried out on it indicate that the scheme performs well cryptographically.
KeywordsEncryption Algorithm Pseudorandom Sequence Broadcast Channel Data Encryption Standard Data Expansion
Unable to display preview. Download preview PDF.
- Even, S. and Goldreich, O., “On the power of cascade ciphers”, presented at CRYPTO 83, Santa Barbara, CA, Aug. 22–24, 1983.Google Scholar
- Konheim, A.G., “Cryptography: A Primer”, John Wiley and Sons, New York, 1981.Google Scholar
- Lee, L.N. and Lu, S.C., “A Multiple-destination Cryptosystem for Broadcast Channels”, COMSAT Tech. Review, Vol. 9, 1979, pp. 25–35.Google Scholar
- National Bureau of Standards (US), “The Data Encryption Standard”, Federal Info. Proc. Standards Publ. FIPS PUB 46, Nat. Tech. Info. Service, Springfield, VA., 1977.Google Scholar
- Papoulis, A., Probability, Random Variables, and Stochastic Processes, McGraw-Hill, 1965.Google Scholar
- Shannon, C.E., “Communication Theory of Secrecy Systems”, Bell Syst. Tech. J., Vol. 28, Oct. 1949, pp. 656–715.Google Scholar
- Spencer, M.E. and Tavares, S.E., “Layered Multi-User Cryptosystems”, IEEE Canadian Commun. and Energy Conf., Oct. 1982, Proc. pp. 379–382.Google Scholar
- Spencer, M.E., “Layered Broadcast Cryptosystems”, M.Sc. Thesis, Dept. of Elec. Eng., Queen’s University, Kingston, Ont., Apr. 1983.Google Scholar