The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 1994
Filed:
Mar. 11, 1993
Ralph R Bestock, Los Altos, CA (US);
Tandem Computers Incorporated, Cupertino, CA (US);
Abstract
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 Number (PVN) or other user authorization code. The PVN is subsequently used by a transaction system to verify the identity of the authorized user.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile