Blackberry Corporation

Research in Motion Corporation

Michael K. Brown

Sherif Abdel-Kader

Yongsheng Chen

Dave Bajar

Darrell May

Philip Luk

Michael K Brown

Michael Kenneth Brown

Darrell Reginald May

Philip C Luk

Philip Chi-Jim Luk

Sherif Aly Abdel-Kader

Wen Gao

George Dos Santos

A system and method for controlling data communications between a server and a client device, such as a mobile device. Embodiments relate generally to a technique where stop data is provided to the client device. This stop data can be transmitted (e.g. by the client device) to the server. When processed by the server, the stop data indicates to the server that at least some of the encrypted data received by the client device from the server was not decrypted using the second key (e.g. as may be the case when the second key has been deleted). Upon receiving the stop data, the server may, for example, withhold the transmission of data encrypted with the first key to the client device until the second key is restored on the client device. In one embodiment, the stop data is provided to the client device in an encoded (e.g. encrypted) form.

System and method for controlling data communications between a server and a client device

Growing community of inventors

Kitchener, Canada

Dave Bajar