METHOD AND SYSTEM FOR UPDATING INFORMATION IN A TELEFON EXCHANGE SYSTEM

摘要

Method and system for updating an encryption key used for the encryption of a password in a telephone exchange system comprising a telephone exchange (LE); a maintenance center (SC) connected to the telephone exchange (LE); a first database (DB1), which contains user-specific information and is connected to the maintenance center (SC). The user information contains data indicating the encryption key used last as well as the password encrypted using this encryption key. When the user is logging on, the encryption key last used data is compared with the current encryption key data of the telephone system. If these items differ, the user is identified by the password which has been encrypted with the encryption key used last and the encryption key last used data in the first database (DB1) is updated with the current encryption key of the telephone exchange system and the encrypted password is updated to make it consistent with the current encryption key.