Cooperative method of key derivation for LTE systems based on radio interface and core network
Wenjian Zhang, Peng Jian-hua, Huang Kaizhi · Jisuanji yingyong yanjiu · 2013
This paper put forward a cooperating method for key derivation based on the idea of combination of radio interface and core network.It produced the radio child-keys according to the security algorithm list provided by plain radio message and obtained parent-key,and decided the right key by comparing the plain context and the decrypted context.It proves that the correct rate of key derivation is more than 90% in the case that the symbol error rate(SER) is less than 10-3 according to the analysis of feasibility.Therefore it has practical application values.