Research ArticleOpen accessPhrase in the titleA Block Cipher Using Linear CongruencesV. U.K. Sastry, V. JanakiWe have developed a block cipher by using modular arithmetic inverse and linear congruences. The cipher contains a key matrix called the outer key. It also includes another key, which contains a set of constants involved in the linear congruences. This key is called as inner key. The cryptanalysis carried out in this paper indicates that the cipher cannot be … …Journal of Computer Science, Vol. 3, Issue 7 · 31 Jul 2007 · 7,013 accessesView PDFCite