Method and system for selecting a password en-crypted with a correct software version

Abstract

Method and system for selecting a password encrypted with a correct software version in a telecommunication system. The system of the invention comprises a source system (LE 1 ), a target system (LE 2 ), an operation and maintenance network (OM) established between the source and the target systems, and an operation and maintenance center (OMC) connected to the operation and maintenance network (OM). In the method, log-on in the source system (LE 1 ) is accomplished by supplying a user identification and a password corresponding to it. Further, a remote session connection is set up via the operation and maintenance center (OMC) to the target system (LE 2 ). According to the invention, the password encryption software versions in the target system (LE 2 ) and in the source system (LE 1 ) are compared with each other; and, if the password encryption software versions in the source and target systems differ from each other, the password belonging to the user identification in question which is associated with an earlier password encryption software version is sent to the target system (LE 2 ).

1 . An operation and maintenance center connected to a source telecommunication system and to a target telecommunication system via an operation and maintenance network, wherein the operation and maintenance center is configured to receive a remote session connection request to the target telecommunication system from the source telecommunication system, the operation and maintenance center comprising: 
 means ( 1 ) for comparing password encryption software versions in the target telecommunication system and in the source telecommunication system with each other; and    means ( 2 ) for sending a password associated with the user identification in question and consistent with an earlier password encryption software version to the target telecommunication system when the password encryption software versions in the source and target telecommunication systems differ from each other.    
     
     
         2 . Operation and maintenance center as defined in  claim 1 , further comprising means ( 3 ) for storing in a certain predetermined space the passwords associated with different versions of password encryption software of the source and/or target telecommunication system and belonging to user identification codes.