monoalphabetic

monoalphabetic, a Python code which applies a monoalphabetic substitution cipher to a string of text.

A code is specified by listing 26 symbols that are to be used to replace the characters "A" through "Z" in the text. (Note that, before encryption, the string is capitalized.) The same code can be used to reverse the encryption process.

Licensing:

The information on this web page is distributed under the MIT license.

Languages:

monoalphabetic is available in a MATLAB version and an Octave version and a Python version.

Related Programs:

atbash, a Python code which applies the Atbash substitution cipher to a string of text.

caesar, a Python code which applies a Caesar Shift Cipher to a string of text.

chrpak, a Python code which works with characters and strings.

dictionary_code, a Python code which demonstrates how a text file can be compressed and decompressed using a dictionary code.

filum, a Python code which works with information in text files.

rot13, a Python code which enciphers a string using the ROT13 cipher for letters, and the ROT5 cipher for digits.

Source Code:

• monoalphabetic.py the source code;
• monoalphabetic.sh runs all the tests;
• monoalphabetic.txt the output file;