Method, system and device for dynamically generating authentication code based on cdma

Abstract

The invention discloses a method, system and device for dynamically generating an authentication code based on CDMA. The method includes the steps of: the mobile station and the authentication center randomly share security information according to the IMSI International Mobile Subscriber Identity Code, the ESN electronic serial number and the RANDSSD respectively. The data uses the MD5 algorithm to generate a private key; the mobile station and the authentication center use the DH algorithm to generate a public key according to their respective private keys; the mobile station and the authentication center exchange the public key with each other to obtain the other party's public key ; The mobile station and the authentication center use the DH algorithm to generate the authentication code according to their respective private keys and the public key of the other party. Therefore, the present invention dynamically generates an authentication code during the interaction process between the mobile station and the authentication center, and uses the dynamically generated instead of the fixed authentication code to perform authentication, which greatly reduces the risk of the authentication code being stolen, and greatly improves the authentication efficiency. security of rights.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a method, system and device for dynamically generating an authentication code based on CDMA. Background technique [0002] Security issues are an important issue in the field of wireless communications. At present, security measures taken to solve security issues mainly include access authentication and encryption. Access authentication is to ensure the legitimacy of user identity, and encryption is to ensure communication content. Security. Access authentication is divided into user authentication and session authentication. User authentication is to verify the legitimacy of the terminal user when a session is initially established; session authentication is to re-authenticate when the terminal changes from static to active state or switches during the session. [0003] In the field of CDMA communication technology, as an important key in the authentication process, th...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to propose a method, system and device for dynamically generating authentication codes based on CDMA, aiming at dynamically generating authentication codes and solving the problem that authentication codes are fixed and affect authentication security

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