SECURING PEER-TO-PEER AND GROUP COMMUNICATIONS

摘要

Systems, methods and apparatus embodiments are described herein for leveraging security associations to enhance security of proximity services. Existing security associations are leveraged to create security associations that are used by proximity services. For example, existing keys may be leveraged to derive new keys that may be used to secure peer-to-peer communications.

主权项

1. A method for securing proximity communication between a first user equipment (UE) and a second UE, wherein each UE has a pre-established security association with a network entity, the method comprising:
obtaining a first key associated with the pre-established security association between the first UE and the network entity; obtaining a second key associated with the pre-established security association between the second UE and the network entity; receiving a notification indicating that the first UE and the second UE desire to engage in proximity communications; and deriving, based on the first key and the second key, first and second intermediate keys that can be used by the first UE and second UE, respectively, to derive a common shared key for securing proximity communications between the first UE and the second UE.