发明名称 |
METHOD AND APPARATUS FOR ENCRYPTING SHORT DATA IN A WIRELESS COMMUNICATION SYSTEM |
摘要 |
A method and apparatus is capable of encrypting short data in a wireless communication system When a terminal generates a short data burst in idle mode, the apparatus generates a Traffic Encryption Key (TEK) using a Cipher-based Message Authentication Code (CMAC)-TEK prekey derived from an Authorization Key (AK) related to Security Association (SA) between the terminal and a Base Station (BS). A nonce is constructed with a Packet Number (PN) identical to an uplink CMAC PN (CMAC-PN_U) transmitted together with a Ranging Request (RNG-REQ) message carrying the short data burst The short data burst is encrypted using the TEK and the nonce. A Medium Access Control (MAC) Protocol Data Unit (PDU) is generated by attaching a MAC header and a CMAC digest for integrity protection to the RNG-REQ message carrying the encrypted short data burst. The MAC PDU is transmitted to the BS. |
申请公布号 |
US2012177199(A1) |
申请公布日期 |
2012.07.12 |
申请号 |
US201213347628 |
申请日期 |
2012.01.10 |
申请人 |
BAEK YOUNG-KYO;KANG HYUN-JEONG;SAMSUNG ELECTRONICS., LTD. |
发明人 |
BAEK YOUNG-KYO;KANG HYUN-JEONG |
分类号 |
H04W12/06;H04W12/04 |
主分类号 |
H04W12/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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