Principles of Lumo's zero-access encryption implementation
Lumo's AI chat assistant by Proton utilizes Zero-Access Encryption, an advanced form of end-to-end encryption. Under this mechanism, all user conversation data remains encrypted during transmission and storage, and the decryption key is stored only on the user's device. This means that even Proton's servers do not have access to the user's chat content, achieving true privacy protection.
In terms of technical implementation, when a user enters a conversation on a device, the client immediately encrypts the data locally using an encryption algorithm (e.g. AES-256), which can only be decrypted by a private key held by the user. The encrypted data is transmitted over an SSL/TLS channel to Proton's data center in Europe for storage, where all intermediate nodes can only process the encrypted ciphertext.
- Decryption key does not exist on the server side
- The encryption process is done on the local device
- The server only stores encrypted data that cannot be parsed
This design ensures that even if user data is illegally accessed, an attacker will not be able to recover the original chat, providing users with military-grade privacy protection.
This answer comes from the articleLumo: Proton launches free AI chat assistant with high privacy protectionThe
