Cryptgeon

Overview:

cryptgeon is a secure, open source sharing note or file service that is inspired by PrivNote. It consists of a server, a web page, and a CLI (command-line interface) client. This service allows users to send encrypted text or files, and the server is unable to decrypt the contents due to client-side encryption. The data is stored in memory and is never persisted to disk, ensuring the privacy and security of the shared notes or files.

Features:

• Client-side Encryption: The notes or files are encrypted on the client side using AES in GCM mode with a generated key, ensuring that the server cannot decrypt the contents.
• View or Time Constraints: Users can set constraints on the notes or files, such as limiting the number of views or setting an expiration time.
• In-memory Storage: The data is stored in memory and is never persisted to disk, providing an extra layer of security.