We investigate how to design an error-free and perfectly secure crypto-system. In particular, we are interested in the efficiency of an EPS system. A approach based on prefix codes is introduced. Also an optimum partition code is introduced where the key consumption is minimum for fixed number of channel uses. Results obtained in this paper can also be applied to study the tradeoff between the key consumption and the number of channel uses needed to transmit the encrypted message.
2012 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT)
channel coding,vectors,random variables,codes,cryptography,transmitters
Online codes,Discrete mathematics,Concatenated error correction code,Cryptography,Computer science,Block code,Turbo code,Algorithm,Encryption,Theoretical computer science,Linear code,Prefix code