CodeBook• 1.1
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Paid Version
Publisher Description
This app contains 12 different methods for encrypting and decrypting secret messages. We will be adding more methods with future updates! Learn about cryptography with CodeBook. Monoalphabetic Ciphers A monoalphabetic cipher replaces one letter with another and uses the same substitution across the entire message. The popular Cryptogram puzzles that you see in newspapers and puzzle books are all monoalphabetic ciphers. 1) Caesar Cipher 2) Atbash Cipher 3) Keyword Cipher 4) Polybius Square Cipher Polygraphic Ciphers Instead of substituting one letter for another letter, a polygraphic cipher performs substitutions with two or more groups of letters. This has the advantage of masking the frequency distribution of letters, which makes decryption much more difficult. 5) Playfair Cipher 6) Bifid Cipher 7) Trifid Cipher Transposition Ciphers Unlike substitution ciphers that replace letters with other letters, a transposition cipher keeps the letters the same, but rearranges their order according to a specific algorithm. 8) Rail Fence Cipher 9) Columnar Transposition Cipher Codes A code is a monoalphabetic cipher that is standardized. Because everyone knows the secret, these are not use for encrypting messages, but instead for encoding the message in a format that is more convenient for certain purposes. 10) Morse Code 11) Tap Code 12) ASCII Code Note: This app is for educational and entertainment purposes. None of the encryption methods in this app are safe enough to use for actual secret messages.
Requires iOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch.
About CodeBook•
CodeBook• is a paid app for iOS published in the Kids list of apps, part of Education.
The company that develops CodeBook• is Jake Olefsky, LLC. The latest version released by its developer is 1.1.
To install CodeBook• on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2012-08-07 and was downloaded 46 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the CodeBook• as malware if the download link is broken.
How to install CodeBook• on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the CodeBook• is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After CodeBook• is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
