Group Members : Anette Ulrichsen amulrichsen@csu.fullerton.edu Brandon Nguyen brandon0180@csu.fullerton.edu Farid Aalam farid.aalam@csu.fullerton.edu Georden Grabuskie ggrabuskie@csu.fullerton.edu John Margis margisj@csu.fullerton.edu

TO EXECUTE THE CIPHERS Run the cipher.py file followed by the arguments

You may need to install the python module pycrypto root@name:~# pip install pycrypto --user

The arguments are

root@name:~# python cipher.py <cipher_name> <cipher_key> <ENC/DEC> <input_file> <output_file>

<cipher_name> : AES - AES DES - DES

<cipher_key> : The key to be used

<ENC/DEC> : ENC - Encryption DEC - Decryption

<input_file> : The file to be ENC/DEC

<output_file> : The output of the cipher function

An example would be

root@name:~# python cipher.py DES "01234567" ENC small.txt smallout.txt

Note

Length of key for AES is 16 (i.e. 128 bits) and for DES is 8 (i.e. 64 bits)