| 摘要 |
A method of secure identification of a mobile user in a communications network with many distributed users groups in areas or subgroups Dx, Dy on a network. Users are assigned an identifier Au and a password PWu or another secret confirming element. An identifier and a password are stored in an original area of a user, synchronisation is assigned, a method of synchronizing time Tu is supplied, synchronisation with an original area Du is performed when a user enters a foreign area Dy. A method is characterised by encrypting an identifier (Au), assignment of time synchronisation (Tu) and user's password (PWu) or other secret confirming element are encrypted using a secret function, especially one-way function and then creating an encrypted message (SUid), a foreign area (Dy) a user (U) wants to communicate from is presented with a user's original are, an encrypted message (SUid) is transmitted to user's original area (Du) and an encrypted message (SUid) is assessed in user's original area (Du), where user's actual identity is determined. |
