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AssigneeResearch In Motion Limited
InventorsDavid P. Yach, Herbert Anthony Little, Gerhard Dietrich Klassen
Estimating the term…
Authenticity of a proposed future or current participant in a multi-party dialog is checked by splitting an authenticity challenge query into at least two portions wherein none of the portions individually contains sufficient information to fully define the challenge query. These separated portions are then sent to another dialog participant over at least two different communication channels thus enhancing the probability that a successive challenge response is authentic. The authenticity challenge query and splitting thereof into plural portions may include formation of a logical combination (e.g., exclusive-OR) of first and second data strings (one of which may be a challenge question) to produce a resultant third data string where the separated and separately communicated portions include the first and third data strings as separate portions as being sent over respectively different communication channels.
A method of authenticating a challenged party, the method comprising:
The method as claimed in 1, further comprising forming, using the authenticity challenge query data string and a first data string, at least a second data string, wherein the n authentication information parts comprise the first and second data strings.
A method of authenticating a challenged party, the method comprising:
A system of authenticating a challenged party, the system comprising:
A computer-readable storage medium comprising instructions, which, when executed by a processor, causes the processor to:
Dependencies are inferred from the claim text.