Blackberry Corporation

Eleven-x Incorporated

Research in Motion Corporation

Alan Sung

Remo Borsella

Jonathan Otto Swoboda

Won Huh

Disclosed is a method for execution by a computing device. The method involves establishing a communication channel for communicating with a client device using link-layer encryption, and attempting to authenticate the client device using authentication-layer encryption on top of the link-layer encryption. The method also involves receiving a command from the client device over the communication channel, and if the client device has been authenticated, executing the command. Notably, the link-layer encryption offers some degree of security because network traffic over the communication channel is encrypted, but does not offer adequate protection from all cyber attacks. However, the authentication-layer encryption adds an additional layer of security on top of the link-layer encryption, which can help to avoid or mitigate cyber attacks. In this way, it is possible to avoid or mitigate unauthorized users from having the computing device execute commands, because security is enhanced beyond the link-layer encryption.

Method and apparatus for authenticating encrypted communication

A system for dynamically adjusting clock calibration in a wireless communication device. The system includes a temperature sensor for measuring a temperature, a primary clock coupled to the microprocessor for synchronizing the operation of the wireless communication device and a secondary clock coupled to the microprocessor for tracking time. A signal representing a measured temperature is received. At least one of a temperature measurement rate and a calibration rate based on the measured temperature is determined. A signal representing the at least one of the determined temperature measurement rate and the determined calibration rate is transmitted.

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Waterloo, Canada

Alan Sung