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1.发明授权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公开(公告)号：US08244989B2
公开(公告)日：2012-08-14
申请号：US12598043
申请日：2007-05-02
IPC分类号： G06F12/00
CPC分类号： G06F21/6218 , G06F2221/2143
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.
摘要翻译： 一个或多个目标文件通过用“0”，“1”和/或随机数据覆盖目标文件来安全地从诸如磁盘的主机存储介质中擦除，而且（或者替代地）通过用部分 在同一媒体上发现的其他被选中的无害文件。 通过在主机操作系统被允许加载之前使用辅助的，优选的外部机制引导主机，绕过主机OS的文件访问和处理执行的记录。 还可以使用替换后分段和碎片整理来进一步降低擦除的可检测性，并且可以使用统计分析来评估该过程的成功。
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公开(公告)号：US20100138619A1
公开(公告)日：2010-06-03
申请号：US12598043
申请日：2007-05-02
IPC分类号： G06F12/12 , G06F12/00 , G06F17/00 , G06F15/177
CPC分类号： G06F21/6218 , G06F2221/2143
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.
摘要翻译： 一个或多个目标文件通过用“0”，“1”和/或随机数据覆盖目标文件来安全地从诸如磁盘的主机存储介质中擦除，而且（或者替代地）通过用部分 在同一媒体上发现的其他被选中的无害文件。 通过在主机操作系统被允许加载之前使用辅助的，优选的外部机制引导主机，绕过主机OS的文件访问和处理执行的记录。 还可以使用替换后分段和碎片整理来进一步降低擦除的可检测性，并且可以使用统计分析来评估该过程的成功。
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