| 摘要 |
<p>A key distribution method and system for handover are provided in the present invention, the method includes the following steps: when a terminal switches between a source base station and a target base station, the target base station requests a key generation information from the core network; the target base station generates a key, which is used to derive a key of the access layer, based on the key generation information provided by the core network. The key distribution scheme provided in the present invention provides generation material of the key for the target evolved Node B (eNB) through Mobility Management Entity (MME), and the target eNB generates KeNB key, in this way, in the X2 handover process, even if the source eNB is broken, the key KeNB of the target eNB can not be got, therefore solving the security problem of the key distribution in the handover process, and achieving the purpose of one hop forward security.</p> |
