Abstract: 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), a first database (DB1) containing user-specific information, and a second database (DB2) containing the encryption methods used and the associated encryption keys. The user information contains data indicating the encryption key used last and the password encrypted using this encryption key. When the user is logging on in the system, the encryption key last used data is compared with the current encryption key data. If these differ, the user is identified by the password encrypted with the encryption key used last, and the encryption key last used data 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.

Abstract: The invention relates to a method of logging onto at least two network elements within a communications system, in which method a user inputs a first username (GUSER) and a first password (GPSSWD) at a user station (WS); said user station (WS) logs on (2-2) to a first system (NEMU) using said first username (GUSER) and said first password (GPSSWD) through a first connection; said first system (NEMUT) determines (2-10, 2-12, 2-14) a second username (MUSER) and a second password (MPSSWD) in co-operation with a second system (DX); said first system (NEMU) sends (2-18) said second username (MUSER) and said second password (MPSSWD) to said user station (WS); and said user station (WS) logs on (2-20) to said second system (DX) with said second username (MUSER) and said second password (MPSSWD).

Abstract: 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), a first database (DB1) containing user-specific information, and a second database (DB2) containing the encryption methods used and the associated encryption keys. The user information contains data indicating the encryption key used last and the password encrypted using this encryption key. When the user is logging on in the system, the encryption key last used data is compared with the current encryption key data. If these differ, the user is identified by the password encrypted with the encryption key used last, and the encryption key last used data 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.