Personal identification encryptor and method
CA 2118644 C · Owner: Tandem Computers Incorporated · Inventors: Bestock, Ralph R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for allowing a user to select and encrypt a Personal Identification Number (PIN) from a remote location without requiring clear transfer of the user-selected PIN and the account number during a single communication is disclosed. The preferred embodiment includes a host computer connected by a modem to a telephone line along with appropriate, communication software and a security module connected to the host via a secure communication path. The security module generates an encrypted PIN using the user-selected PIN and a sequence number generated by the host. The security module can also processes the encrypted PIN and user account number to generate a Pin Verification …
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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 March 9, 1994 and granted February 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.