rot13

rot13, a C++ code which reads a file and makes a copy in which all characters have been "rotated" by 13 positions, and all digits have been "rotated" by 5 positions.

Applying ROT13 to the transformed file returns the original. Thus, ROT13 can be used as a very simply method of encoding and decoding text files. Only an idiot would be fooled by this encoding, but nonetheless the encoding serves a number of useful purposes. And often, it's only idiots you have to fool, after all.

Usage:

rot13 file1.txt

• file1.txt is the input file to be encoded.

Licensing:

The computer code and data files described and made available on this web page are distributed under the MIT license

Languages:

rot13 is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

ATBASH, a C++ code which applies the Atbash substitution cipher to a string of text.

CAESAR, a C++ code which can apply a Caesar Shift Cipher to a string of text.

FILUM, a C++ code which performs various operations on files.

rot13_test

UNCONTROL, a C++ code which makes a copy of a text file which contains no control characters.

WRAP, a C++ code which makes a copy of a text file in which long lines have been wrapped.

Source Code:

• rot13.cpp, the source code;
• rot13.sh, compiles the source code;