Certification method using variable encryption key system based on encryption key of certification medium and inherent information of computer hardware, and certification medium for storing the same and indicating effective term and authorization thereof

摘要

Disclosed is a method for certifying the identity of a user accessing the Internet and passing through a service gate over the Internet. In particular, the certification method uses a variable encryption key system based on encryption keys of a certification medium and inherent information of computer hardware. In the certification method, a certification medium is provided to the user, the certification medium is prepared by compilation of some pieces of encryption operation formula for certification into an execution file. When a user gains an access to the Internet for Internet use or certification, the remaining pieces of the certification formula are transmitted to the medium, thereby combining all the pieces of certification formula, forming a complete certification formula. Hardware information of the user computer is inputted thereinto, generating a unique value of encryption as certification information. The certification is completed when the certification is transmitted to the server.