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. The short-time key is available with each broadcast message, wherein sufficient information to calculate the short-time key is provided in an Internet protocol header preceding the broadcast content. 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 |
US2003070092(A1) |
申请公布日期 |
2003.04.10 |
申请号 |
US20010973301 |
申请日期 |
2001.10.09 |
申请人 |
HAWKES PHILIP;LEUNG NIKOLAI K. N.;ROSE GREGORY G. |
发明人 |
HAWKES PHILIP;LEUNG NIKOLAI K. N.;ROSE GREGORY G. |
分类号 |
G06F21/24;H04L9/08;H04L29/06;(IPC1-7):H04L9/00 |
主分类号 |
G06F21/24 |
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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