Cryptool

Cryptool is a cryptography tool and high security keystore app for Android. It can be used as a floating tool and in ball/bubble mode.

It has been developed keeping in mind these three words: fast, small and offline.

AES Encryption and SHA-256 Hashing

Easy encryption and hash computation of any text in any place and situation.

Keystore

Keep your keys away from "fancy" services that are not open-source and phone home continuosly.

Download

Screenshots

Supported Languages

• Chinese (Thanks to @kouhe3 and @WOSHIZHAZHA120)
• English
• German
• Spanish

If you want to help translate the application into a new language, just create an Issue.

Roadmap

• Dark theme
• Clear & Delete PIN button
• Change PIN
• Migrate data when PIN is created/modified/deleted
• Automatically kill app in defined scenarios
• Prevent screenshots and app preview in recent apps view
• Clipboard cleaning and protection
• Export/Import data
• ~~ Ability to select a password from the keystore without requiring a copy-paste operation.~~
• [Work in progress] Cipher webapp. The development of a web application compatible with Cryptool is important in order to offer a crossplatform solution.
• Asymmetric encryption (PGP).
• Hash file.

3rd party software

• Timber
• Gson

License

GNU General Public License v3

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Some icons were made by Freepik (from www.flaticon.com)