Retrograde Cipher 2

The program below will enable your browser to perform encryption and decryption of texts using client side JavaScript and a pre-shared-secret. Prior to enciphering a message move the mouse erratically and/or press random keys to fill the entropy pool.

It's safe to enter a secret key here because the data never leaves your computer; However, if you would like to ensure this is true you may download this program, inspect its source code, and execute it locally. The previous version of Retrograde Cipher is also available.

Display characters.

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