SECURITY MANAGEMENT METHOD AND APPARATUS FOR GROUP COMMUNICATION IN MOBILE COMMUNICATION SYSTEM
First Claim
1. A security management method for group communication performed in a server that manages group communication in a mobile communication system, the method comprising:
- generating a session security key for session protection in the group communication, and mapping the session security key to a group identity for identifying a specific group to which a User Equipment (UE) using the group communication belongs;
transmitting the group identity and the session security key to the UE; and
generating a traffic key for protection of traffic, and transmitting the group identity and the traffic key to the UE.
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Accused Products
Abstract
The present invention relates to a security management method and an apparatus for group communication when a terminal interacts and communicates with a mobile communication system. The security management method for group communication performed in a server, which manages the group communication in the mobile communication system according to one embodiment of the present invention, includes the steps of: generating a session security key for session protection in the group communication, and mapping the session security key to a group identifier for identifying a specific group to which a terminal using the group communication belongs; transmitting the group identifier and the session security key to the terminal; and generating a traffic key for protecting traffic and transmitting the group identifier and the traffic key to the terminal.
39 Citations
21 Claims
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1. A security management method for group communication performed in a server that manages group communication in a mobile communication system, the method comprising:
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generating a session security key for session protection in the group communication, and mapping the session security key to a group identity for identifying a specific group to which a User Equipment (UE) using the group communication belongs; transmitting the group identity and the session security key to the UE; and generating a traffic key for protection of traffic, and transmitting the group identity and the traffic key to the UE. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A server for managing group communication in a mobile communication system, the server comprising:
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a communication interface configured to transmit and receive various information for the group communication; and a controller configured to control generating a session security key for session protection in the group communication, to map the session security key to a group identity for identifying a specific group to which a User Equipment (UE) using the group communication belongs, to control transmitting the group identity and the session security key to the UE, to generate a traffic key for protection of traffic, and to control transmitting the group identity and the traffic key to the UE. - View Dependent Claims (17, 18, 19, 20, 21)
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8. (canceled)
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9. A security management method performed in a User Equipment (UE) that uses group communication in a mobile communication system, the method comprising:
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transmitting information about a specific group to which the UE using the group communication belongs, to a server that manages the group communication; receiving each of a session security key for the group communication and a traffic key for protection of traffic from the server that has received the information about the specific group; deciphering the traffic key using the received session security key; and performing the group communication through the server using the deciphered traffic key. - View Dependent Claims (10, 11, 12)
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13. A User Equipment (UE) that uses group communication in a mobile communication system, the UE comprises:
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a transceiver configured to transmit and receive various information related to the group communication; and a controller configured to control transmitting information about a specific group to which the UE using the group communication belongs, to a server that manages the group communication, to control receiving each of a session security key for the group communication and a traffic key for protection of traffic from the server that has received the information about the specific group, to decipher the traffic key using the received session security key, and to control performing the group communication through the server using the deciphered traffic key. - View Dependent Claims (14, 15, 16)
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Specification