Date: Mon, 14 Mar 2011 00:13:27 +0100 From: Pierre Joye <pierre.php@...il.com> To: oss-security@...ts.openwall.com Cc: Andrew Clausen <clausen@...n.upenn.edu> Subject: Re: announcing libwipe hi, I like this idea, and could be very useful especially in massive shared environment (as in lot of users sharing a server, like web servers for example). My only concern right now is the choice of the gplv3, which is a no go for many projects, especially for a library. Any chance to release it under a more permissive or non viral license like bsd or MIT? ps: that's not a license FUD, only a question (before I got shot :). Cheers, On Sat, Mar 12, 2011 at 7:29 AM, Andrew Clausen <clausen@...n.upenn.edu> wrote: > Hi all, > > I have written a program called "libwipe" for GNU/Linux to wipe memory > as soon as it is not being used. I am releasing it under the GPL3 > licence, and you can download it here: > > http://www.econ.upenn.edu/~clausen/computing/libwipe.tar.gz > > Any suggestions are appreciated. In particular, I would like feedback on > * which memory mappings should be erased on exit > * which project this could be included in (secure-delete?) > > OVERVIEW > > This library is designed to make programs respect users' privacy by wiping > information when it is no longer needed. It does not require any modifications > to the original programs. To use it for all programs in a single shell > session, set the LD_PRELOAD environment variable with the shell command > > export LD_PRELOAD=/usr/local/lib/libwipe.so > > To use it system-wide, add /usr/local/lib/libwipe.so to the /etc/ld.so.preload > configure file. > > The program uses two mechanisms: > (1) when memory is deallocated with free(3), it is zeroed out. > (2) when the process terminates, the entire memory is zeroed out. > > Cheers, > Andrew > -- Pierre @pierrejoye | http://blog.thepimp.net | http://www.libgd.org
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