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Description
Encrypt and decrypt Gmail messages locally using AES-256-GCM and RSA-OAEP. Clavimit is an open-source browser extension for encrypting and decrypting Gmail messages directly in your browser. It uses hybrid encryption: message content is encrypted with AES-256-GCM, while RSA-OAEP with SHA-256 is used to securely encrypt the message key for the recipient. With Clavimit, you can compose a message in the extension and encrypt it locally using the recipient's public key. Only the encrypted message is then inserted into Gmail. When you receive a Clavimit-encrypted message, the extension can detect it and decrypt it locally using your private key. Features: - Generate public and private encryption keys - Encrypt messages locally before inserting them into Gmail - Detect Clavimit-encrypted messages in Gmail - Decrypt messages locally using your private key - No plaintext message content is sent to a Clavimit server - Light and dark mode support - Open-source Clavimit encrypts the message content, not Gmail metadata. Information such as sender, recipient, subject, timestamps, and other metadata may still be processed by Gmail. Users remain in control of their keys. Clavimit does not upload keys to a server, synchronize them between devices, or store private keys in the browser. Users are responsible for storing, backing up, exchanging, and verifying their own RSA keys. Keys can be generated independently or generated locally using Clavimit. Keys are provided to Clavimit only when needed, either by pasting them into the extension or by selecting a key file.