AES encryption and decryption

Notes:

• Enter your selected passphrase before encrypting or decrypting.
• The passphrase and texts are not transmitted or stored by this webpage. The page can be saved to your desktop and inspected, as the javascript program is self-contained.
• The processing uses AES-GCM 256 bit encryption.
• A salt and initialization vector are prefixed to the ciphertext.
• Be aware that javascript is susceptible to side channel attacks.