Digital certificate proxy
Patent 6854057 Issued on February 8, 2005. Estimated Expiration Date: 
September 6, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 6, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPortable information and transaction processing system and method utilizing biometric authorization and digital certificate security Specifying security protocols and policy constraints in distributed systems Method and system for providing limited access privileges with an untrusted terminal Patent #: 6510523 InventorsAssigneeApplicationNo. 09948381 filed on 09/06/2001US Classes:713/156, By certificate713/158, Revocation or expiration713/159, Including intelligent token713/173, Pre-loaded with certificate705/65, Including intelligent token (e.g., electronic purse)705/1AUTOMATED ELECTRICAL FINANCIAL OR BUSINESS PRACTICE OR MANAGEMENT ARRANGEMENTExaminersPrimary: Darrow, Justin T.Attorney, Agent or FirmForeign Patent References
International ClassesH04L009/32H04L009/10 H04L009/32 AbstractThe invention generates a temporary digital certificate with a useful life of only a few minutes to a few hours. An expiration time is attached to such temporary digital certificate by a secure computer platform that is presented with a user's smart-card. Expiration dates one or two years after the issuance of the smart-card are conventional. A digital certificate issued by a central authority is carried within the smart card and is used by the secure computer platform to generate temporary digital certificate. The temporary digital certificate functions as a proxy digital certificate that will allow the user to immediately pocket the smart card and thus avoid the possibility of forgetting it in a card reader.Other References
Field of SearchBy certificateRevocation or expiration Including intelligent token Intelligent token Pre-loaded with certificate Using record or token Including intelligent token (e.g., electronic purse) Intelligent token initializing or reloading Including authentication AUTOMATED ELECTRICAL FINANCIAL OR BUSINESS PRACTICE OR MANAGEMENT ARRANGEMENT | |
