Invention Grant
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
- Patent Title: Secure erasure of a target digital file including use of replacement data from used space
- Patent Title (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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Application No.: US12598043Application Date: 2007-05-02
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Publication No.: US08244989B2Publication Date: 2012-08-14
- Inventor: Avelino Andretti Benavides
- Applicant: Avelino Andretti Benavides
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Potomac Patent Group PLLC
- International Application: PCT/EP2007/054264 WO 20070502
- International Announcement: WO2008/135078 WO 20081113
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
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.
Public/Granted literature
- US20100138619A1 Secure Erasure of Digital Files Public/Granted day:2010-06-03
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