![]() ![]() ![]() It is advisable to get access to a book such as this, and to try to learn a bit if you want to understand this algorithm in depth.įor a guide on how to break Hill ciphers, see Cryptanalysis of the Hill Cipher. Elementary Number Theory and its applications, Rosen, 2000). Many elementary number theory text books deal with the theory behind the Hill cipher, with several talking about the cipher in detail (e.g. It is important to note that the analysis of this algorithm requires a branch of mathematics known as number theory. Hill's major contribution was the use of mathematics to design and analyse cryptosystems. To counter charges that his system was too complicated for day to day use, Hill constructed a cipher machine for his system using a series of geared wheels and chains. Hill used matrices and matrix multiplication to mix up the plaintext. Hill in 1929, the Hill cipher is a polygraphic substitution cipher based on linear algebra. ![]()
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