Cryptology ePrint Archive: Report 2016/429

Information-Theoretical Analysis of Two Shannon's Ciphers

Boris Ryabko

Abstract: We describe generalized running key ciphers and apply them for analysis of two Shannon's methods. In particular, we suggest some estimation of the cipher equivocation and the probability of correct deciphering without key.

Category / Keywords: running-key cipher, cipher equivocation, Shannon cipher.

Date: received 1 May 2016, last revised 1 May 2016

Contact author: boris at ryabko net

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Version: 20160502:132839 (All versions of this report)

Short URL: ia.cr/2016/429

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