Walrus Disk is a decentralized storage application that uses Walrus to store encrypted files. The Walrus Disk application uses JavaScript running within your web browser to encrypt and decrypt files client-side. It makes no network connections during this process to ensure that your keys never leave the web browser during the process.
Walrus Disk stores the encrypted files in Walrus and the encryption keys locally, ensuring the security of the files. When you need your files, Walrus Disk downloads them from Walrus and then decrypts them with the local key.
All client-side cryptography is implemented using the Web Crypto API. Files are encrypted using AES-CBC 256-bit symmetric encryption. The encryption key is derived from the password and a random salt using PBKDF2 derivation with 10000 iterations of SHA256 hashing.