| 发明名称 |
METHOD AND APPARATUS FOR SECURITY IN A DATA PROCESSING SYSTEM |
| 摘要 |
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. |
| 申请公布号 |
EP1374477(B1) |
申请公布日期 |
2017.03.08 |
| 申请号 |
EP20020715236 |
申请日期 |
2002.03.28 |
| 申请人 |
QUALCOMM INCORPORATED |
发明人 |
HAWKES, Philip;ROSE, Gregory, G.;HSU, Raymond, T.;REZAIIFAR, Ramin |
| 分类号 |
H04L9/16;H04L29/06;G06F21/00;G06F21/30;H04B7/26;H04L9/08;H04L9/30;H04L12/18;H04L12/56;H04L29/08;H04W4/00;H04W12/02;H04W28/04;H04W28/06;H04W28/18;H04W52/02;H04W72/04;H04W80/00;H04W92/10 |
主分类号 |
H04L9/16 |
| 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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