Editing Final Report 2011 (section)

===Implementation===
A modular implementation approach was taken in which, once the base functionality of the CipherGUI was coded, each cipher could be easily integrated by setting the encryption and decryption algorithms and building the unique central panel as described above. Figure 9, below, shows a screenshot of the working application. A large selection of ciphers is available via the dropdown list above the unique central panel, with areas designated for plaintext, ciphertext and frequency plots. 

The screenshot shows the Playfair Cipher in use. The user of the program has specified the input key “Music” and the cipher-square in the central panel has updated to reflect this choice of keyword. Letter frequencies of the ciphertext and plaintext are displayed in the graphs.

<center>[[File:Working CipherGUI.png|Working CipherGUI]]</center>
<center>'''Figure 9 - CipherGUI display panel'''</center>