PROGRAM: arc4 VERSION: 1.0 AUTHOR: Thomas Madsen, tmadsen@math.ou.edu, University of Oklahoma 2012 SYNTAX: arc4 inputfile outputfile WARRANTY: You are welcome to use the program and use the source code free of charge. I cannot guarantee that the programs will work on your computer. The source code and programs are provided 'as-is', without any express or implied warranty. In no event will the author be held liable for any damages arising from the use of this software. DESCRIPTION: A standalone program that uses the ARC4 (or RC4) stream cipher to encrypt/decrypt a file. The program takes inputfile and prompts for a key. Then the program applies the cipher. The result is saved as outputfile. The file outputfile is overwritten if it already exists. The program has been written in C++ and the executable is compiled on Windows 7 using the GNU C++ compiler in MINGW [http://www.mingw.org/]. The program runs from a command prompt.