发明授权
US08244989B2 Secure erasure of a target digital file including use of replacement data from used space
有权
安全擦除目标数字文件，包括使用已用空间的替换数据
- 专利标题： Secure erasure of a target digital file including use of replacement data from used space
- 专利标题（中）： 安全擦除目标数字文件，包括使用已用空间的替换数据
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申请号： US12598043申请日： 2007-05-02
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公开(公告)号： US08244989B2公开(公告)日： 2012-08-14
- 发明人: Avelino Andretti Benavides
- 申请人： Avelino Andretti Benavides
- 申请人地址： SE Stockholm
- 专利权人： Telefonaktiebolaget L M Ericsson (publ)
- 当前专利权人： Telefonaktiebolaget L M Ericsson (publ)
- 当前专利权人地址： SE Stockholm
- 代理机构： Potomac Patent Group PLLC
- 国际申请： PCT/EP2007/054264 WO 20070502
- 国际公布： WO2008/135078 WO 20081113
- 主分类号： G06F12/00
- IPC分类号： G06F12/00
摘要：
One or more target files are securely erased from a host storage medium such as a disk by overwriting the target files not just with “O's,” “1's” and/or random data, but also (or instead) by overwriting them with portions of other, selected, innocuous files found on the same medium. By booting the host using a secondary, preferably external mechanism, before the host operating system is allowed to load, logging of file accesses and process execution by the host OS is circumvented. Post-replacement fragmentation and defragmentation may also be used to further reduce the detectability of the erasure, and the success of the process may be evaluated using statistical analysis.
公开/授权文献
- US20100138619A1 Secure Erasure of Digital Files 公开/授权日：2010-06-03
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