METHOD AND APPARATUS FOR GENERATING SEQUENCE NUMBER OF ENCRYPTION KEY IN NETWORK

摘要

A method and an apparatus for generating the sequence number of the encryption key in the network. The user equipment and the encryption key generator in the network side generate the sequence number RK1_SN of the first primary encryption key and the sequence number RK2_SN of the second primary encryption key respectively. The bits in RK1_SN and RK2_SN are added or connected to obtain the sub encryption key for the user equipment and the network side. The method and apparatus for generating the sequence number of the sub encryption key by the sequence numbers of two parent encryption keys can increase the security of the network