Caesar Cipher Disk

This is a very simple Caesar cipher disk. You can turn both wheels individually (or not). You can lock screen orientation, keep screen on, turn on vibrations and play a sound. You can reverse the selected alphabet ("atbash style"). You can choose between : * latin alphabet, * hebrew alphabet, * russian alphabet, * greek alphabet, * Eldar Futhark Runes (not supported on some versions of Android !), * Union Cipher Disk used during the Civil War, * Alberti Cipher Disk, * Diana Cipher Disk (Diana Cryptosystem used during Vietnam War : http://www.blogbyben.com/2014/12/trigraphs-diana-pads-and-zombies.html - http://www.creativecrafthouse.com/index.php?main_page=product_info&cPath=143&products_id=1076), * Vigenère Cipher Disk, * Beaufort Cipher Disk, * Custom Cipher Disk - limited to 60 characters per wheel. You can manage 10 custom disks. You can create a printable version of the current disk, stored in a PDF file (inside the folder "CAESAR_CIPHER_DISK" of the application storage). A simple file viewer can be used to view a PDF file with your favorite PDF viewer or to delete (by a long click) the PDF files. Note for the Union disk : a long click on the Reset button changes its default configuration.