Portable NaCl-powered encryption
Salty makes it easy to send strongly-encrypted messages with a shared key. It uses NaCl for encryption and basE91 for portability.
With Salty, you can encrypt a message as long as 185 characters and the resulting cipher will still fit in a tweet (~277 characters), making it ideal for encrypting tweets or other length-restricted communication. You can use it anywhere, though, with text of any length.
Salty is open source and available on GitHub. Detailed information can be found in the project’s README file.