Verification method and apparatus
Patent 5245657 Issued on September 14, 1993. Estimated Expiration Date: 
July 2, 2012. 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.
July 2, 2012. 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 ReferencesCryptographic verification of operational keys used in communication networks Method, apparatus and article for identification and signature Method and apparatus for implementing electronic cash Patent #: 4977595 InventorAssigneeApplicationNo. 907717 filed on 07/02/1992US Classes:705/67, Including authentication380/30, Public key705/69, Electronic cash detail (e.g., blinded, divisible, or detecting double spending)705/75, Transaction verification713/180Generating specific digital signature type (e.g., blind, shared, or undeniable)ExaminersPrimary: Cain, DavidAttorney, Agent or FirmForeign Patent References
International ClassH04K 001/00Foreign Application Priority Data1991-07-08 JPAbstractA prover possessing public information and related secret information sends the public information and an initial message to a verifier. The verifier sends back a random message and an enquiry generated from the initial message and random message. The prover confirms that the enquiry has been correctly generated, then sends the verifier a response created from the enquiry and the secret information and related to the initial message. Using the initial message and public information, the verifier checks whether the response is a valid response to the enquiry. If it is, the verifier stores the public information, initial message, random message, and response as a transcript. If necessary, the transcript can be submitted to an arbitrator to establish that verification has taken place.Other References
Field of SearchPublic key | |
