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On Thursday 25 March 2004 09:24, John Nilsson wrote: |
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> On Thu, 2004-03-25 at 02:45, Robin H. Johnson wrote: |
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> > OK, after reading this entire thread, I've been thinking about a |
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> > usable implementation from both the administrative and developer |
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> > perspective. One of the most important things to remember in |
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> > designing this, is that while you can prevent damage from most |
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> > individual attacks, no system in existence can withstand a |
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> > multi-faceted all-out assault. |
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> > |
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> > Goals: |
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> > ------ |
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> > - protect against compromised developer box / rogue developer |
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> > - protect against compromised rsync server |
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> |
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> Exactly how secure are we aiming at? The schemes presented here does |
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> nothing to secure gentoo boxes from malicious source code. |
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|
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There are digests of all source files in the packages files directory. As |
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the digests of these digests are in the signed manifest file it is not |
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possible to compromise source files. (Unless md5 is compromised which |
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would create many problems. We might want to have double hashing using |
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md5 in paralel with SHA) |
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|
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> If a patch is signed, with a good signature, does that mean that the |
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> signers has audited the patch for security holes? |
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It means that the signer does not believe the patch to be compromised. |
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Note that this feature is to protect against the insertion of trojans by |
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third parties (in particular rsync mirror compromise). It is not against |
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security issues that are non-intentional. |
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|
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> What is to say that the source compiled with an ebuild is not |
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> compromised? |
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The fact that sources need to match the digests which are in the portage |
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tree and which are protected by signatures. |
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Paul |
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|
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- -- |
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Paul de Vrieze |
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Gentoo Developer |
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Mail: pauldv@g.o |
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Homepage: http://www.devrieze.net |
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-- |
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