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15 Δεκ 2012 · I made a simple class that handles lowercase, uppercase and numbers. It uses the StringBuilder class to make the output. To decode a string, you would use the opposite shift (if you encrypt with shift = 2, decrypt with shift = -2).
11 Φεβ 2010 · Are you trying to do something like a Caesar cipher? (i.e. take every letter and shift it a certain number of letters to the left or right?) If so, you will want to work with individual characters on your string. There's a datatype char that allows this, and you can do arithmetic operations.
Caesar Cipher Programming Algorithm in C#. In cryptography, a Caesar cipher, also known as shift cipher, Caesar's cipher, Caesar's code or Caesar shift, is one of the simplest and most widely known encryption techniques.
This repository houses a powerful package designed for anyone interested in learning and implementing cryptographic algorithms in c#. With a focus on clarity, robustness, and educational value, our library provides implementations for a variety of cryptographic algorithms.
5 Νοε 2016 · Polyalphabetic Cipher. The Caesar Cipher involves replacing each letter of the alphabet with the letter – standing places down or up according to the key given. Suppose “M” is the plaintext and the key is given as 4, then you get the Ciphertext as the letter “Q”.
21 Νοε 2022 · Rijndael is based on the block cipher method which uses a symmetric key encryption technique. It works with the help of invertible and discrete layers. As for C#, the Rijndael key supports key lengths of 128, 192, and 256 bits and also supports blocks of 128 (by default), 192, and 256 bits.
15 Σεπ 2022 · The Caesar cipher is a substitution cipher that shifts letter positions. It is similar to ROT13. The shift value can be kept secret to make the cipher harder to break.
