METHOD AND APPARATUS FOR SECURE DATA TRANSMISSION IN A MOBILE COMMUNICATION SYSTEM
摘要
<p>Method and apparatus for secure transmissions. Each user is provided a registration key. A long-time updated broadcast key is encrypted using the registration key and provided periodically to a user. A short-time updated key is encrypted using the broadcast key and provided periodically to a user. Broadcasts are then encrypted using the short-time key, wherein the user decrypts the broadcast message using the short-time key. One embodiment provides link layer content encryption. Another embodiment provides end-to-end encryption.</p>
申请公布号
EP1532506(A1)
申请公布日期
2005.05.25
申请号
EP20030751918
申请日期
2003.08.26
申请人
QUALCOMM INCORPORATED
发明人
HAWKES, PHILIP M.;HSU, RAYMOND T.;REZAIIFAR, RAMIN;ROSE, GREGORY G.;BENDER, PAUL E.;WANG, JUN;QUICK, ROY FRANKLIN, JR.;MAHENDRAN, ARUNGUNDRAM C.;AGASHE, PARAG A.