Abstract: A system and method are provided for generating and transmitting push notifications in connection with a transport service. Push notification triggers can be configured by a user via an application-based user interface corresponding to an application specific to the transport service. A user profile associated with the user can be accessed to detect one or more preconfigured push notification triggers, and thereafter transport service activity can be dynamically monitored for trigger events. Such trigger events can cause the system to generate and transmit push notifications to the user's mobile device.

Abstract: Trusted nodes in a network perform secure out-of-band symmetric encryption key delivery to user devices. A first trusted node receives a request from a first user device to deliver symmetric encryption keys to the first user device and a second user device, as a pair of user devices. The first trusted node delivers a second symmetric encryption key to the second user device, via trusted nodes. The first trusted node receives confirmation of delivery of the second symmetric encryption key. Responsive to the confirmation of delivery, the first trusted node delivers the first symmetric encryption key to the first user device.

Abstract: Trusted nodes in a network perform secure out-of-band symmetric encryption key delivery to user devices. A first trusted node receives a request from a first user device to deliver symmetric encryption keys to the first user device and a second user device, as a pair of user devices. The first trusted node delivers a second symmetric encryption key to the second user device, via trusted nodes. The first trusted node receives confirmation of delivery of the second symmetric encryption key. Responsive to the confirmation of delivery, the first trusted node delivers the first symmetric encryption key to the first user device.