KR980007082A - How to Update Subscriber's Secret Shared Data in Personal Communication System - Google Patents

Abstract

By providing a method of updating the secret sharing data of the terminal with the new secret sharing data set by the authentication center, the subscriber can always communicate safely and conveniently by minimizing the damage that the subscriber can suffer in case of loss of personal communication subscriber terminal. In addition, the present invention relates to a method for updating a secret shared data of a subscriber station in a personal communication system to improve the efficiency and reliability of a personal communication exchange.

Description

How to Update Subscriber's Secret Shared Data in Personal Communication System

As this is a public information case, the full text was not included.

1 is a block diagram of hardware to which the present invention is applied.

Claims (3)

When the authentication center tries to update the subscriber's secret shared data due to the operation or expiration of the subscriber's authentication cycle, a new secret unique data is generated, and the secret shared data random value, unique attempt random value, and unique attempt authentication for the secret shared data update processing are generated. Transmitting the authentication command message including the result value to the personal communication exchange, receiving a secret sharing data update request message containing the secret sharing data random value from the personal communication subscriber mobility control block of the personal communication exchange, and receiving the secret sharing data random value. Generate the secret shared data in the terminal, randomly generate the base station unique attempt value in the terminal, disregard this in the base station unique attempt request message, and transmit it to the personal communication exchange and request the base station unique attempt received from the personal communication exchange in the authentication center. The base station unique attempt random value in the message By generating a base station unique attempt authentication value in the authentication center and transmitting it to the personal communication exchange and comparing the base station unique attempt authentication value received from the authentication center in the terminal with the same as its own, update the secret shared data of the terminal. And transmitting the secret sharing data change response message to the personal communication exchange, and if the base station unique attempt is successful by examining the reason for updating the secret sharing data in the secret sharing data change response message in the personal communication subscriber mobility control block. Storing the success in the update information, and in case of failure, storing the failure in the secret shared data update information, transmitting an authentication request message containing a random value to the terminal, and generating a randomness in the authentication request message received from the terminal. Authentication request is generated by generating unique attempt authentication value in the terminal. Transmitting the response message to the personal communication exchange, receiving an authentication request response message from the personal communication subscriber mobility control block, and comparing whether the unique attempt authentication value in the message is the same as the unique attempt authentication value received from the authentication center; The result of the comparison is stored in the unique attempt authentication information, stored in the authentication status report message along with the secret shared data update information, and transmitted to the authentication center, and the secret shared data update information in the authentication status report message received from the authentication center. If the unique shared data update information is successful, the subscriber's secret sharing data in the authentication center is updated with newly created secret sharing data. Otherwise, the subscriber's secret sharing data is not changed. The authentication status notification response message indicates whether the data update process succeeded or failed. Transmitting to the personal communication exchange, and receiving the authentication status notification response message from the personal communication subscriber mobility control block to determine the success or failure of the confidential data transfer process. How to handle confidential shared data updates. The method of claim 1, further comprising the steps of modifying the subscriber's data with the newly created secret shared data when the terminal compares whether the base station unique attempt authentication value received from the authentication center is the same as its own, and the secret shared data. Modifying the subscriber's data with the secret sharing data indicating that the update was successful in the reason for the update, and transmitting the secret sharing data change response message to the personal communication exchange to the subscriber's secret sharing in the personal communication system. How to handle data updates. The method according to claim 1, wherein if the base station unique attempt authentication value received from the authentication center is the same as that of its own, the terminal fails to update the secret shared data update reason information without modifying the subscriber's secret shared data. Storing the shared data change response message; and transmitting the secret shared data change response message to the personal communication exchange. ※ Note: The disclosure is based on the initial application.