What is an Authentication Center?

The Authentication middle (AuC) is a key aspect of a global machine for Cellular communications (GSM) domestic locator register (HLR). The AuC validates any protection Records Management (SIM) card attempting Network connection when a Cellphone has a stay commUnity sign.

The AuC affords safety to ensure that 0.33 Events are unable to use network Subscriber services.

What Does Authentication Center Mean?

Each network SIM card is assigned an Character authentication key (K_i). A matching K_i is contained within the AuC. The SIM and the AuC keep the K_i in an unreadable layout. The K_i even stays hidden from the SIM card owner to defend commuNity Operators from fraud, which includes SIM Cloning, via permitting consumer idEntity verification and ensuring call Confidentiality.

During the authentication sySTEM, the K_i is used with the subscriber’s international mobile subscriber identification (IMSI) wide Variety. Network and service subscriber validity is determined by a success authentication.

The authentication process starts when a subscriber requests a network sign. A randomly decided on key is generated that encrypts all wi-fi verbal excHange between the Mobile Device and the center network. The Encryption Algorithm is called A3.

The encrypted randomly chosen variety (RAND) the usage of the K_i ought to fit the saved quantity in the AuC and the SIM card. The whole Procedure is completed in the course of a wi-fi connection. If the numbers do not healthy, the authentication is invalidated as a Failed feature request.