Data compression using dynamic Markov modelling
The Computer Journal
ACM Computing Surveys (CSUR)
Codes and cryptography
On the privacy afforded by adaptive text compression
Computers and Security
A universal algorithm for homophonic coding
Lecture Notes in Computer Science on Advances in Cryptology-EUROCRYPT'88
ACM Computing Surveys (CSUR)
An information-theoretic treatment of homophonic substitution
EUROCRYPT '89 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
Arithmetic coding for data compression
Communications of the ACM
A Mathematical Theory of Communication
A Mathematical Theory of Communication
An introduction to arithmetic coding
IBM Journal of Research and Development
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It was recognised by Shannon that data compression increases the strength of secrecy systems when applied prior to encryption. Compression techniques have advanced considerably in recent years. This paper considers the extent to which these techniques can increase security. Estimates are obtained for how far practical compression schemes can increase unicity distance of symmetric ciphers. It is noted that there are other good reasons for using data compression prior to encryption. Comparison is made with homophonic coding and it is suggested that data compression is more worthwhile for practical sources such as natural language.