Abstract: Aspects of the subject technology include receiving, by a first device, a voucher data item, from a second device that is participating in a group communication session with at least a third device and providing, by the first device, the voucher data item to at least the third device to verify that the first device is vouched for by the second device for participation in the group communication session. The voucher data item may include participant information associated with participation of the second device in the group communication session. The voucher data item may also be signed with a key associated with the second device.

Abstract: Aspects of the subject technology include receiving, by a first device, a voucher data item, from a second device, providing, by the first device, an invitation to at least a third device to join a group communication session with at least the first device, and providing, by the first device, the voucher data item to at least the third device to verify that the first device is vouched for by the second device for participation in the group communication session initiated by the first device. The voucher data item may include participant information associated with the second device. The voucher data item may also be signed with a key associated with the second device.

Abstract: Devices, methods, and non-transitory program storage devices are disclosed to enable the automatic establishment of a secure audio/video data streaming connection between electronic devices. For example, a first electronic device may enter into a first state of a peer device advertising protocol, and then, based on a determination that the first electronic device meets a first set of device state criteria (e.g., including at least an orientation state criterion), the first electronic device may enter into a second (e.g., enhanced) state of the peer device advertising protocol. In response to detecting a presence of a second electronic device in its proximity, the first electronic device may connect to the second electronic device via a secure peer-to-peer connection protocol and then send one or more images captured by a first image capture device of the first electronic device to the connected second electronic device via the secure wireless peer-to-peer connection protocol.