Crypto Lite

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A light AES encryption clientCrypto Lite is an extremely simple text encryption app. The basic idea is to present military-grade encryption in as simple a manner as possible; to put high grade encryption in the hands of people who might not be comfortable with it otherwise.

Input text is password encrypted using 256 bit AES into a cipherblock which is distributable via email, instant message, or arbitrary file storage. Of special note, all encryption takes place in the user's browser, eliminating any middleman in the encryption or decryption processes.

Crypto Lite is not intended as a substitute for SSL, PGP, or filesystem encryption, it is simply an extra layer of security to help protect your data in storage or transit.

How it Works:
1) Type in some text and a password
2) Click encrypt
3) Store/Send the cipherblock the app gives you. You're done.

Advantages:
-GPL Software
-No network activity, so no chance for data interception
-No ads or data mining
-Nothing is stored anywhere (no servers to be hacked)
-Usable offline
-Produces highly secure AES encryption


Legal Stuff:
-This app is GPL software
-The library it uses is GPL software
-Phillip Rogaway's patented OCB2 method is used under licence
-All images used are either original or were obtained from the public domain.
-I am not responsible for anything you lose, do, or break with this app.

Donationware
-This app is donationware. You can get the exact same app (without the thank you message) free from me on the Chrome Web Store; no one should be forced to pay for privacy.
-That said, if you appreciate the app, and feel it deserves a dollar, it really is appreciated in turn.

FAQ:

Q: What is the difference between this and the free version?
A: Functionally nothing. This is donationware; the only difference is that if you donate, you are clinically proven to be a better person. Also, the donation banner goes away, and you get a thank you message in the FAQ.

Q: Why does the big box get blurry when I click outside it anywhere?
A: This is deliberate. It just helps screen your plaintext (like you would have before encryption or after decryption) from peeping toms while you are opening your email or typing in a password.

Q: If I slightly change the trailing character of the iv and salt, it can still decrypt!
A: This is not a bug, it is an artifact of the Base64 padding, and does not actually affect the security of your data. Long and very nerdy story short, AES produces binary data which is not representable (at least in any concise way) in text. Base64 is a way of taking that already encrypted binary data and mapping it to an easily stored or emailed text-based format. Base64 is not where the security of this app comes from, it just makes life easier for you.

Q: Will you keep supporting Crypto Lite?
A: Sort of. Full-time college and my job keep me pretty busy, so I probably wont be doing active dev for a while, but I will pop in periodically to check the comments for bugs, questions, or (hopefully) thanks.

Q: This is GPL? How do I get source?
A: The app is nothing BUT source. By the nature of the technologies used, installing this app is synonymous with installing source. Instructions for getting to it are included with the app.