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One application of the Chinese remainder theorem to the Vigenére cipher. (English. Russian original)
Dokl. Math. 81, No. 1, 14-15 (2010); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 430, No. 1, 21-22 (2010).
The authors continue the construction of ciphers based upon number-theoretic algorithms. They, in particular, present an arithmetic approach to the construction of the Vigenére cryptosystem. It is a succinct and eminently readable approach.
Reviewer: Richard A. Mollin (Calgary)
Classification: F65
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