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wipe-0.16.tar.gz

wipe-0.16.tar.gz
Posted Dec 30, 1999
Authored by Berke Durak | Site gsu.linux.org.tr

Recovery of supposedly erased data from magnetic media is easier than what many people would like to believe. A technique called Magnetic Force Microscopy (MFM) allows any moderately funded opponent recover the last two or three layers of data written to disk. Wipe repeadetly overwrites special patterns to the files to be destroyed, using the fsync() call and/or the O_SYNC bit to force disk access.

Changes: Use of /dev/urandom to seed libc's random() additive feedback pseudo-random generator; a new 32-bit seed is fetched for every 1024 bytes.
systems | unix
SHA-256 | 80556ae453a20cddc8f5722425fb2bd0f65d1c6a47fed3a6f710036dfdc64aca
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