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Expired Canadian patentCanada

Secure bootstrapping for wireless communications

CA 2597475 C · Owner: Rose, Gregory Gordon · Inventors: Semple, James; Nasielski, John Wallace; Rose, Gregory Gordon

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A mutual authentication method is provided for securely agreeing applicationsecurity keys with mobile terminals supporting legacy Subscriber Identity Modules (e.g. GSM SIM and CDMA2000 R-UIM which do not support 3G AKA , mechanisms). A challenge-response key exchange is implemented between a bootstrapping server function (BSF) and mobile terminal (MT). The BSF generates an authentication challenge and sends it to the MT under a serverauthenticated public key mechanism. The MT receives the challenge and determines whether it originates from the BSF based on a bootstrapping server certificate. The MT formulates a response to the authentication challenge based on keys derived from the …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed February 3, 2006 and granted September 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 3, 2006
GrantedSeptember 18, 2012
Term endedFebruary 3, 2026
Patent numberCA 2597475 C
Classification (IPC)H04L9/14 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 3, 2006Patent grantedSep 18, 2012Term endedFeb 3, 2026

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.