Secret key exchange

Use this tool to create a secret color key with a friend in order to exchange encrypted messages. If you already have a secret key, you can skip to the next section to encrypt and decrypt secret messages.

Encrypt and decrypt using colors

You can use the tool below to encrypt secret messages using color as a secret key, or to decrypt secret messages.

Enter your secret code above, then use the text boxes below to encrypt and decrypt your messages. (To protect your secret key from prying eyes, it's invisible until you mouse over the box.)

Encrypting text

Decrypting text

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