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发表于 2021-6-23 17:18:00
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有很多安全删除软件,原理就是覆盖多次数据,譬如 srm 代替普通 rm 删除文件。
更保险的方法是,敏感数据不要乱放,搞一个加密目录,只放到加密目录中,譬如我用的这个 img <---> 目录 on-the-fly aes256 开源加密工具:
https://github.com/dukelec/cde/blob/master/tools/aes-mount.sh
或者: https://gitee.com/dukelec/cde/blob/master/tools/aes-mount.sh
- duke@duke-pc ~ $ srm --help
- srm v3.1 (c) 1997-2003 by van Hauser / THC <vh@thc.org>
- Syntax: srm [-dflrvz] file1 file2 etc.
- Options:
- -d ignore the two dot special files "." and "..".
- -f fast (and insecure mode): no /dev/urandom, no synchronize mode.
- -l lessens the security (use twice for total insecure mode).
- -r recursive mode, deletes all subdirectories.
- -v is verbose mode.
- -z last wipe writes zeros instead of random data.
- srm does a secure overwrite/rename/delete of the target file(s).
- Default is secure mode (38 writes).
- You can find updates at http://www.thc.org
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