Patent ID: 7580897
Filing Date: 2009-08-25
Classification: G06Q,G07B,G07C,G07F

Abstract:
1. An authentication method in an electronic ticket distribution system including an IC card having a contact-type or a noncontact-type first interface for purchasing and storing an electronic ticket; a user terminal having a connecting port for the IC card and having an electrical communication means; a ticket server having a tamper resistant device, the device which has a first equivalent function to an IC card and which issues and sells electronic tickets; and a ticket collecting machine having a second equivalent function to an IC card for collecting electronic tickets upon their usage, the authentication method comprising the steps of: storing, in the hardware storage device of the IC card, at least one public key encryption algorithm and at least one symmetric key encryption algorithm; determining a required degree of security and a required processing speed between the IC card and the first or the second equivalent function to an IC card; selecting the first or the second equivalent function to an IC card and selecting one of a public key encryption algorithm or a symmetric key encryption algorithm as an authentication algorithm based on the required degree of security and the required processing speed determined by the determining step; and executing an authentication procedure by using the selected authentication algorithm between the IC card and the selected first or the second equivalent function to an IC card.