| 摘要 |
Provided in an embodiment of the present invention are a method and device for secure communication between user equipment (UE), so as to improve communication security between UEs. In the present invention, a first UE and a second UE are configured with certificates respectively, perform bidirectional authentication and negotiate a key based on the certificates, and obtain a first key generated after the certificates are authenticated; performing key derivation according to the first key, obtaining an encryption key and an integrity protection key; protecting the security of the communication data between the first UE and the second UE using the encryption key and the integrity protection key. The present invention can protect the security of all communication data in communication between UEs, thus ensuring the security of communication between UEs. |
