Date: Thu, 20 May 1999 12:31:06 -0500 (CDT) From: James Wyatt <jwyatt@RWSystems.net> To: "Ilmar S. Habibulin" <ilmar@ints.ru> Cc: posix1e@cyrus.watson.org, freebsd-security@freebsd.org Subject: Re: secure deletion Message-ID: <Pine.BSF.4.05.9905201144130.18069-100000@kasie.rwsystems.net> In-Reply-To: <Pine.BSF.4.05.9905191535110.7728-100000@ws-ilmar.ints.ru>
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On Wed, 19 May 1999, Ilmar S. Habibulin wrote: > May be it's an freebsd-fs@ question, but i think that it belings here to. > I heard that some linux fs (maybe extfs2?) have some secure deletion flag, > which being set on inode(file or dir) cause content of this file to be > wiped before deletion, so even if somebody manage to restore file, its > content would be unusable. I think, that it is nice feature, and i would > like to see it in freebsd. What would you say? My first thought was, what a great idea for /etc/master.passwd which gets flushed every time a user updates their password. Good idea for any file containing decrypted data. My second thought of the impact of support for wiping in the kernel... If I really wanted to slow down a server I didn't like, setting this flag for files in /tmp and CGI-interim results piping and caching sounds like it could quietly drive disk IO up quite a bit. - Jy@ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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