发明名称 |
Control function with multiple security states for facilitating secure operation of an integrated system |
摘要 |
A technique is provided for facilitating secure operation of an integrated system. The technique includes passing a request for data through a data access controller incorporated within the integrated system, and selectively qualifying the request in accordance with a security state of the controller. The security state of the controller is one state of multiple possible security states, including a null state and a secured state. In the secured state, the controller replaces a standard boot code address associated with a request for boot code with a substitute boot code address. The substitute boot code address addresses an encrypted version of boot code, which is then decrypted by the controller employing a master key set held at the controller. When transitioning to the null state, the master key set is erased.
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申请公布号 |
US7089419(B2) |
申请公布日期 |
2006.08.08 |
申请号 |
US20020125115 |
申请日期 |
2002.04.18 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FOSTER ERIC M.;HALL WILLIAM E.;ROSU MARCEL-CATALIN |
分类号 |
H04L9/00;G06F9/00;G06F12/14;G06F21/00 |
主分类号 |
H04L9/00 |
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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