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Relative synchronization authentication method, synchronization parameter update method, authentication system and device

An authentication method and relatively synchronous technology, which can be used in synchronization devices, digital transmission systems, transmission systems, etc., and can solve problems such as inconsistency between time tokens and server time.

Inactive Publication Date: 2013-06-26
王正伟
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a relative synchronous authentication method, which solves the problem of inconsistency between the time token and the server time caused by the clock drift of the time token, and enhances the robustness of the time-based synchronous authentication system

Method used

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  • Relative synchronization authentication method, synchronization parameter update method, authentication system and device
  • Relative synchronization authentication method, synchronization parameter update method, authentication system and device
  • Relative synchronization authentication method, synchronization parameter update method, authentication system and device

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Embodiment Construction

[0070] The invention completes time relative synchronization authentication based on the clock drift, thereby enhancing the robustness of the authentication system. The authentication system involved in the present invention includes at least an authentication server and a terminal, wherein a first clock system (TClk, Terminal Clock) is set in the terminal, and a second clock system (SvrClk, Server Clock) is set in the server. In the existing time-based synchronization authentication technology, as time goes by, TClk may drift relative to SvrClk, that is, out of synchronization, and the drift accumulates to a certain extent, so that the server can no longer rely on the time provided by SvrClk for terminal authentication. Perform effective authentication, thereby causing situations such as invalidation of time tokens (common dynamic tokens or security devices) provided by existing banks to customers for authentication. For this situation, the existing authentication technology ...

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Abstract

The invention discloses a relative synchronization authentication method. A virtual time clock system VClk is built based on a server time clock SvrClk and for corresponding clients to enable a time value Y of the VClk and a time value X of the SvrClk to satisfy a certain mapping relation and the VClk to be close to a client time clock TClk to guarantee that an authentication procedure which is based on time synchronization is performed normally. The relative synchronization authentication method has the advantages of being capable of reducing the production cost of a time token, prolonging the service life of the time token, reducing the distribution cost of the time token and corresponding with an energy-saving and environment friendly requirement. The invention also provides a synchronization parameter update method which has the advantages of updating the mapping relation and enabling the VClk which is far away from the TClk to be close to the TClk again. The invention also discloses an authentication system and the time token.

Description

technical field [0001] The present invention relates to dynamic quantity synchronization, more specifically to time synchronization authentication technology based on clock drift and authentication system and device based on the technology. Background technique [0002] With its excellent anti-replay feature, the dynamic password technology has been proposed, and it will soon be applied to the field of identity authentication. Dynamic password technology prevents message replay attacks by allowing user passwords to change continuously according to challenges or time or events. Authentication technologies based on dynamic passwords include: challenge / response-based asynchronous authentication technology, time-based synchronous authentication technology, and event-based synchronous authentication technology. [0003] The dynamic token based on the dynamic password technology has a built-in power supply, a storage unit for storing the root key of the dynamic password, a dynami...

Claims

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Application Information

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IPC IPC(8): H04L7/00H04L9/32H04L29/06
Inventor 王正伟
Owner 王正伟
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