Crypt 2.0 si Decrypt 2.0 there are two tweaks available recently Cydia, and with their help you can encode the messages sent to anyone. The tweak is implemented in the Action Menu in iOS, and will encode messages using an algorithm/own key, or a key chosen by you. Crypt coded messages can be sent through any chat system, and your interlocutor must have Decrypt 2.0 installed to decipher the message, the same being true in your case.
Decrypt 2.0 to decrypt your message (Free app on cydia). "Crypt 2.0" is a quick encryption algorithm to allow you to protect your messages, notes etc. You can send crypt messages if you chat with a person who has "Crypt 2.0". Crypt 2.0 is a plugin action menu. If you leave the text field null, "Crypt" will find a random key for you but you need to remember your key to decrypt. If you put a custom key, "Crypt" it will transform your key into a possible key and it will show you in pop up. Never forget your key if you want to decrypt your message one day, you can use the same key if you want.
Crypt 2.0 is available for $1 in Cydia's BigBoss repo, and Decrypt 2.0 is available for free in the same repo.
