发明名称 |
ZUSAMMENGESETZTER NACHTRICHTENAUTHENTIFIKATIONSCODE |
摘要 |
Prior to transmission, a message is divided into multiple transmission units. A sub-message authentication code is obtained for each of the transmission units. A composed message authentication code is obtained for the whole message based on the sub-message authentication codes of the multiple transmission units. The multiple transmission units and the composed message authentication code are then transmitted. A receiver of the message receives a plurality of transmission units corresponding to the message. A local sub-message authentication code is calculated by the receiver for each transmission unit. A local composed message authentication code is calculated by the receiver based on the local sub-message authentication codes for the plurality of transmission units. The local composed message authentication code is compared to a received composed message authentication code to determine the integrity and/or authenticity of the received message. |
申请公布号 |
DE602007013795(D1) |
申请公布日期 |
2011.05.19 |
申请号 |
DE20076013795T |
申请日期 |
2007.10.25 |
申请人 |
QUALCOMM INC. |
发明人 |
PADDON, MICHAEL;ESCOTT, ADRIAN;ROSE, GREGORY GORDON;HAWKES, PHILIP M. |
分类号 |
H04W4/00;H04L29/06;H04W12/10 |
主分类号 |
H04W4/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|