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104: Secure delete items directly from the Finder
FYI: The Secure Delete Hoax
And from the NOTE section of the srm man page: The -s option overrides the -m option, if both are present. If neither is specified, the 35-pass Gutmann algorithm is used.
104: Secure delete items directly from the Finder
That Rixstep article is classic FUD: "Everyone else is doing secure delete the wrong way, except us, and we'll sell you our 'fully Gutmann-compliant' solution as part of a $79 tools package." They go on to describe their product, SPX, which sounds exactly like 'srm' (35-pass overwrite, filename randomize/overwrite, caches flushed to disk on each pass, etc.), except that it isn't free or open-source like 'srm'. They're correct that there are a lot of snake-oil products out there which use buzzwords like 'DoD standard' to sell their security, but this point would be more credible if they weren't flogging their own buzzword-laden hypeware.
Gutmann himself has written an epilogue to his original 1996 paper, which calls out this kind of fanatical 35-pass overwrite worship as "voodoo." He basically says that the 35-pass technique is no longer necessary for modern high-density drives -- a few passes with random data now does just as well.
Rixstep FUD
Yep, that article looks even more FUDiculous in light of Gutmann's epilogue (thanks for the reference to that, btw) and srm being bundled with OS X. |
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