matrixlib.devices module

Device-related functionality

class matrixlib.devices.DeviceKeysManager(c: Client, key: bytes)

Manages a device’s keys for end-to-end encryption

Arguments:

c:

the client object

key:

a 32-byte binary used to encrypt the objects in storage

property fingerprint_key: str

property identity_key: str

sign_json(json_object: dict) → dict

Sign a JSON object using the device’s signing key

The input object is modified to include the signature.

class matrixlib.devices.DeviceTracker(c: Client)

Tracks user devices to reduce the number of queries required

Arguments:

c:

the client object

async get_device_keys(users: Iterable[str], force_download=False, timeout: int | None = None) → dict[str, matrixlib.devices.UserDeviceKeysResult]

Get the device keys for the given users.

Arguments:

users:

the user IDs to fetch device keys for

force_download:

whether to ignore the cache and force downloading of all device keys from the server

timeout:

a timeout in milliseconds for the homeserver to wait for responses from remote homeservers

Returns a dict mapping the user IDs to a UserDeviceKeysResult.

class matrixlib.devices.UserDeviceKeysResult(device_keys: dict[str, dict])

The return value of DeviceTracker.get_device_keys for a user

Create new instance of UserDeviceKeysResult(device_keys,)

device_keys: dict[str, dict]

mapping from device ID to device keys

matrixlib.devices.verify_json_ed25519(signature_key: str, user_id: str, device_id: str, json_object: dict) → None

Verify a signed JSON object using a public key

Arguments:

• signature_key: the public part of the key used to sign the object

• user_id: the ID of the user who signed the object

• device_id: the ID of the device used to sign the object

• json_object: the signed JSON object