发明授权
- 专利标题: System and method for secure data disposal
- 专利标题(中): 用于安全数据处理的系统和方法
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申请号: US11852418申请日: 2007-09-10
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公开(公告)号: US07853804B2公开(公告)日: 2010-12-14
- 发明人: Daryl Carvis Cromer , Howard Jeffrey Locker , Randall Scott Springfield
- 申请人: Daryl Carvis Cromer , Howard Jeffrey Locker , Randall Scott Springfield
- 申请人地址: SG Singapore
- 专利权人: Lenovo (Singapore) Pte. Ltd.
- 当前专利权人: Lenovo (Singapore) Pte. Ltd.
- 当前专利权人地址: SG Singapore
- 代理机构: VanLeeuwen & VanLeeuwen
- 代理商 Carlos Munoz-Bustamante
- 主分类号: G06F11/30
- IPC分类号: G06F11/30 ; G06F7/04 ; H04L29/06
摘要:
A system, method, and program product is provided that initializes expected PCRs stored in a TPM by generating and storing a random number, seeding expected PCRs with the random number, inputting a set of startup code processes to a hash algorithm resulting in a set of hash values, updating the expected PCRs using the set of hash values, and saving the expected PCRs in a nonvolatile data area that is secured by the TPM. Upon reboot, the random number is retrieved from the nonvolatile data area, the PCRs are seeded with the retrieved random number, the startup code processes are input to the hash algorithm process resulting in another set of hash values, the PCRs are updated using the resulting set of hash values, and an encrypted data object is decrypted in response to the PCRs being the same as the expected PCRs.
公开/授权文献
- US20090070598A1 System and Method for Secure Data Disposal 公开/授权日:2009-03-12
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