发明授权
US07533274B2 Reducing the boot time of a TCPA based computing system when the core root of trust measurement is embedded in the boot block code
失效
当信任测度的核心根源嵌入引导块代码时，减少基于TCPA的计算系统的启动时间
- 专利标题： Reducing the boot time of a TCPA based computing system when the core root of trust measurement is embedded in the boot block code
- 专利标题（中）： 当信任测度的核心根源嵌入引导块代码时，减少基于TCPA的计算系统的启动时间
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申请号： US10712237申请日： 2003-11-13
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公开(公告)号： US07533274B2公开(公告)日： 2009-05-12
- 发明人: Joseph Wayne Freeman , Steven Dale Goodman , Randall Scott Springfield
- 申请人： Joseph Wayne Freeman , Steven Dale Goodman , Randall Scott Springfield
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： Carey Rodriguez Greenberg & Paul LLP
- 代理商 Jason O. Piche, Esq.; Steven M. Greenberg, Esq.
- 主分类号： G06F9/24
- IPC分类号： G06F9/24 ; G06F9/22 ; G06F9/30
摘要：
A method, computer program product and system for reducing the boot time of a TCPA based computing system. A flash memory in the TCPA based computing system may include a register comprising bits configured to indicate whether the segments of the flash memory have been updated. The flash memory may further include a table configured to store measurements of the segments of the flash memory. The flash memory may further include a boot block code that includes a Core Root of Trust for Measurement (CRTM). The CRTM may read the bits in the register to determine if any of the segments of the flash memory have been updated. The CRTM may further obtain the measurement values in the table for those segments that store the POST BIOS code that have not been updated thereby saving time from measuring the POST BIOS code and consequently reducing the boot time.
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