BlackBerry Limited
Authenticating messages

Abstract:

Systems, methods, and software can be used to share content. In some aspects, a message is received at an electronic device from a sender. A first type 0 short message service (SMS) message is sent, from the electronic device to the sender. The first type 0 SMS message indicates an authentication request for the message. A second type 0 SMS message is received at the electronic device. The second type 0 SMS message indicates that the message is authenticated.