Date: Sun, 2 Sep 2007 11:25:18 -0300 From: "Klaus Schneider" <klausps@gmail.com> To: freebsd-hackers@freebsd.org Subject: Re: Exclusive binary files Message-ID: <45910cf20709020725u1741704dn97c275489bc4c4e9@mail.gmail.com> In-Reply-To: <20070902104508.GB19678@britannica.bec.de> References: <45910cf20709011027o546363e2h4f5646b15e0f84a2@mail.gmail.com> <20070901183020.6a098955@bhuda.mired.org> <20070902104508.GB19678@britannica.bec.de>
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2007/9/2, Joerg Sonnenberger <joerg@britannica.bec.de>: > > On Sat, Sep 01, 2007 at 06:30:20PM -0400, Mike Meyer wrote: > > On Sat, 1 Sep 2007 14:27:42 -0300 "Klaus Schneider" <klausps@gmail.com> > wrote: > > > Well, anybody know a way to make the FreeBSD run just binaries that I > have > > > compiled? > > > > In general, it's impossible. There's no way the system can know that > > you compiled a binary. There are a number of things you could do with > > a custom kernel and toolchain to indicate that you compiled the binary > > (like Peter's changing of ELF OSABI), but that's just security through > > obscurity. If someone figures out those changes and replicates them, > > you lose. > > You mean using cryptographic hashes to ensure that binaries match those > you compiled is impossible? Something like NetBSD's veriexec? > > Joerg > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" > Yes. The alternative would be somethink like veriexec, using hashes into elf binaries... -- /* * Klaus Schneider */
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