| Popis: |
IMS in power system brings both multimedia services and security threats. Based on the requirements of information security and IMS architecture, an optimal access algorithm based on non-key exchange encryption and elliptic curve cryptography is proposed. The new algorithm inherits the advantages that IMS AKA mechanism can deal with attack, and solves DoS attack and SPIT attack which can not be solved. In addition, the optimized computational performance is enhanced, the cost is reduced and the authentication time is reduced. |
