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* Initial commit * add types/bytebuffer, add type definitions to params and update interfaces * add more types and type assertions * update types * change bang operator by type assertion and update class variables definitions * add types for deferred class * minor tweaks on types definitions * add ts-ignore * Update encryption.ts * update deferred and encryption * update encryption.ts * Update room.ts * update toDecrypt type * initialize sessionKeyExportedString * remove return types |
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| README.md | ||
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README.md
Rocket.Chat Mobile
E2E Encryption
Note: This feature is currently in beta. Uploads will not be encrypted in this version. You can check this documentation for further information about the web client.
How it works
- Each user has a public and private key (asymmetric cryptography).
- The user private key is stored encrypted on the server and it can be decrypted on clients only using the user E2E encryption password.
- A room key is generated using the public key of each room member (symmetric cryptography).
- Users can decrypt the room key using their private key.
- Each room has a unique identifier which make users able to request a room key.
- The room unique identifier is called
e2eKeyIdand it's a property of theroomcollection. - The room key is called
E2EKeyand it's a property of thesubscriptioncollection. - After the room key is decrypted, the user is able to encrypt and decrypt messages of the room.
User keys
- If the user doesn't have keys neither locally nor on the server, we create and encrypt them using a random password. These encrypted keys are sent to the server (so other clients can fetch) and saved locally.
- If the user have keys stored on server, but doesn't have them stored locally, we fetch them from the server and request a password to decrypt the keys.
Room keys
- If the room has a
E2EKey, we decrypt it using the user key. - If the room doesn't have a
E2EKey, but has ae2eKeyId, we emit an event on stream-notify-room-users sending theroomIdand thee2eKeyIdrequesting theE2EKeyfrom any online room member. - If the room have none of them, we create new ones and send them back to the server.