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Substitution Cipher
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- Article · C#
Hill Cipher In C#
Hill Cipher is a polygraphic substitution cipher that encrypts and decrypts plaintext into ciphertext and vice versa using matrix operations. It is more secure than traditional Caesar ciphers and substitution ciphers. The algorithm works by breaking the plaintext into blocks and converting them into numerical values based on their position in the alphabet. These values are then multiplied by a matrix to produce the ciphertext.
- Article · Cryptography
Creating a Substitution Cipher with C#
I thought for a bit of fun I'd invent a new cipher and, depending on how 'strong' it turned out to be, perhaps use it in my projects to encrypt string literals, files etc.
