Blackberry Corporation

Jameson Bauer Hyde

Kristof Takacs

Marek Paruzel

Ravi Singh

Ryan Alexander Geris

A system and method to monitor executing processes are disclosed. A respective starting fingerprint of memory of each executing process within at least one process is determined during a system startup phase that is prior to a device operational phase. A present fingerprint of memory of the selected executing process within the at least one process is determined during the device operational phase and while a selected executing process is executing. A difference between the respective starting fingerprint of the selected executing process and the present fingerprint of the selected executing process is determined and an indication of the difference for the selected executing process is reported based on determining the difference.

Executing process code integrity verificaton

A system and method to control establishing inter-process communications are disclosed. A message from a requesting process that is different from a serving process is received at the serving process via an inter-process communications facility. A current fingerprint of memory associated with the requesting process is determined. Whether a previously determined fingerprint is stored for the requesting process is determined where the previously determined fingerprint was determined since initialization of a processor executing the serving process. Based on a determination that the previously determined fingerprint is not stored, the current fingerprint is stored and a communications channel is established between the serving process and the requesting process. Based on a determination that the previously determined fingerprint is stored and that the previously determined fingerprint matches the current fingerprint, the communications channel is established between the serving process and the requesting process.

Message sender authentication

An apparatus and method for determining a power supply electrical current capacity. In one example, an operating circuit is placed into an operating mode that causes the operating circuit to have a determined electrical current consumption. A charging circuit that is electrically connected in parallel with the operating circuit is configured to provide a maximum charging current to a power pack. After configuring the charging circuit, a value of a measured charging current provided to the power pack is received. After receiving the value of the measured charging current, an electrical current supply capacity value of the external power supply is determined as a function of the determined electrical current consumption and the value of the measured charging current.

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Cambridge, Canada

Jameson Bauer Hyde