Patent ID: 8707049
Filing Date: 2014-04-22
Classification: H04L

Abstract:
1. An authentication method, wherein the method comprising the steps of: initiating user authentication to a key device connected to a host computer; generating a dynamic code by the key device using a time or event random factor; generating a first verification code by the key device on the basis of the dynamic code with a mechanism comprising one selected from the group consisting of outputting the dynamic code by the key device; obtaining the dynamic code by the user; producing a second verification code by the user with the same mechanism comprising one selected from the group consisting of entering the second verification code on the host by the user; receiving the second verification code by the host; transmitting the second verification code by the host to the key device connected to the host; receiving the second verification code by the key device; collating the second verification code with the first verification code by the key device; if a match is found, authorizing access of the user to the key device via the host; otherwise, prohibiting access of the user to the key device; if the user gains the access to the key device, performing by the key device information security operations comprising presetting a user software fragment, which cannot be read out of the device and is used to perform data computation within the device, and presetting a software protection application interface function, which is an interface-level function between the device and the software developer application.