| 发明名称 |
Secure system firmware by disabling read access to firmware ROM |
| 摘要 |
Systems, methods and software that use a programmable lock bit that disables read access to a firmware ROM until the CPU is reset or enters into a secure CPU mode. The present invention provides for secure system firmware by preventing access to and reading of the contents of the firmware ROM.
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| 申请公布号 |
US6920566(B2) |
申请公布日期 |
2005.07.19 |
| 申请号 |
US20020194857 |
申请日期 |
2002.07.12 |
| 申请人 |
PHOENIX TECHNOLOGIES LTD. |
发明人 |
LEWIS TIMOTHY A. |
| 分类号 |
G06F12/14;(IPC1-7):G06F12/14 |
主分类号 |
G06F12/14 |
| 代理机构 |
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