Method and device for examining message integrity check

A device for examining a Message Integrity Check (MIC), applied to a monitoring user equipment (M-UE) home domain Proximity-based Service (ProSe) function entity, comprising a processor, configured to perform programming componets stored in a memory, wherein the programming components comprise:

• a first receiving component, which is arranged to receive a monitoring authentication request response message sent by an announcing user equipment (A-UE) home domain ProSe function entity and acquire first information from the monitoring authentication request response message, wherein the first information is used for generating a first MIC;
• a second receiving component, which is arranged to receive a match report sent by an M-UE and acquire second information from the match report, wherein the match report carries a second MIC and the second information, and the second information is used for generating the first MIC;
• and
• an examination component, which is arranged to generate the first MIC according to the first information and the second information and examine the first MIC and the second MIC.