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Hill cipher is a polygraphic substitution cipher based on linear algebra. It was invented by Lester S. Hill in 1929 and, like other polygraphic ciphers, it encrypts pairs of letters instead of single letters as in monoalphabetic ciphers. It is a method of encrypting 2x2 matrix blocks of letters togeRead more
Hill cipher is a polygraphic substitution cipher based on linear algebra. It was invented by Lester S. Hill in 1929 and, like other polygraphic ciphers, it encrypts pairs of letters instead of single letters as in monoalphabetic ciphers. It is a method of encrypting 2×2 matrix blocks of letters together as opposed to single letters.
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