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From: Vivek Goyal <vgoyal@redhat.com>
To: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	linux-kernel@vger.kernel.org, pjones@redhat.com, hpa@zytor.com,
	dhowells@redhat.com, jwboyer@redhat.com
Subject: Re: [PATCH 2/3] binfmt_elf: Verify signature of signed elf binary
Date: Mon, 21 Jan 2013 11:42:13 -0500	[thread overview]
Message-ID: <20130121164213.GB27617@redhat.com> (raw)
In-Reply-To: <1358312159.4593.37.camel@falcor1>

On Tue, Jan 15, 2013 at 11:55:59PM -0500, Mimi Zohar wrote:

[..]
> Please remind me why you can't use IMA-appraisal, which was upstreamed
> in Linux 3.7?  Why another method is needed?

So is this IMA-appraisal also supports digital signatures? The IMA white
paper seems to put digital signatures in separate category
(IMA-Appraisal-Signature-Extension).

> 
> With IMA-appraisal, there are a couple of issues that would still need
> to be addressed:
> - missing the ability to specify the validation method required.
> - modify the ima_appraise_tcb policy policy to require elf executables
> to be digitally signed.

For my use case, all executable don't have to be digitally signed. If
something is digitally signed then do the signature verification.

Thanks
Vivek

  parent reply	other threads:[~2013-01-21 16:42 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-15 21:34 [PATCH 0/3] ELF executable signing and verification Vivek Goyal
2013-01-15 21:34 ` [PATCH 1/3] module: export couple of functions for use in process signature verification Vivek Goyal
2013-01-15 21:34 ` [PATCH 2/3] binfmt_elf: Verify signature of signed elf binary Vivek Goyal
2013-01-16  4:30   ` Eric W. Biederman
2013-01-16  4:55     ` Mimi Zohar
2013-01-16  7:10       ` Eric W. Biederman
2013-01-16 14:00         ` Mimi Zohar
2013-01-16 14:48           ` Vivek Goyal
2013-01-16 15:33             ` Mimi Zohar
2013-01-16 15:54               ` Vivek Goyal
2013-01-16 17:24                 ` Mimi Zohar
2013-01-16 18:21                   ` Vivek Goyal
2013-01-16 18:45                     ` Mimi Zohar
2013-01-16 18:57                       ` Vivek Goyal
2013-01-16 19:37                         ` Mimi Zohar
2013-01-16 19:47                           ` Vivek Goyal
2013-01-16 20:25                             ` Mimi Zohar
2013-01-16 21:55                               ` Vivek Goyal
2013-01-17  8:37                             ` Elena Reshetova
2013-01-17 14:39                     ` Kasatkin, Dmitry
2013-01-17 14:35                 ` Kasatkin, Dmitry
2013-01-16 16:34               ` Vivek Goyal
2013-01-16 18:08                 ` Mimi Zohar
2013-01-16 18:28                   ` Vivek Goyal
2013-01-16 19:24                     ` Mimi Zohar
2013-01-16 21:53                       ` Vivek Goyal
2013-01-17 14:58                         ` Kasatkin, Dmitry
2013-01-17 15:06                           ` Kasatkin, Dmitry
2013-01-17 15:21                             ` Vivek Goyal
2013-01-17 15:18                           ` Vivek Goyal
2013-01-17 16:27                             ` Kasatkin, Dmitry
2013-01-17 20:33                             ` Frank Ch. Eigler
2013-01-17 20:55                               ` Vivek Goyal
2013-01-17 21:46                                 ` Kasatkin, Dmitry
2013-01-17 21:52                                   ` Vivek Goyal
2013-01-20 16:36                                     ` Mimi Zohar
2013-01-21 16:42       ` Vivek Goyal [this message]
2013-01-21 18:30         ` Mimi Zohar
2013-01-16 22:35   ` Mimi Zohar
2013-01-16 22:51     ` Vivek Goyal
2013-01-16 23:16       ` Eric W. Biederman
2013-01-17 15:37   ` Mimi Zohar
2013-01-17 15:51     ` Vivek Goyal
2013-01-17 16:32       ` Mimi Zohar
2013-01-17 17:01         ` Kasatkin, Dmitry
2013-01-17 17:03           ` Kasatkin, Dmitry
2013-01-17 17:42           ` Vivek Goyal
2013-01-17 17:36         ` Vivek Goyal
2013-01-20 17:20           ` Mimi Zohar
2013-01-21 15:45             ` Vivek Goyal
2013-01-21 18:44               ` Mimi Zohar
2013-01-20 16:17         ` H. Peter Anvin
2013-01-20 16:55           ` Mimi Zohar
2013-01-20 17:00             ` H. Peter Anvin
2013-01-15 21:34 ` [PATCH 3/3] binfmt_elf: Do not allow exec() if signed binary has intepreter Vivek Goyal
2013-01-15 21:37 ` [PATCH 4/3] User space utility "signelf" to sign elf executable Vivek Goyal
2013-01-15 22:27 ` [PATCH 0/3] ELF executable signing and verification richard -rw- weinberger
2013-01-15 23:15   ` Vivek Goyal
2013-01-15 23:17     ` richard -rw- weinberger
2013-01-17 16:22 ` Kasatkin, Dmitry
2013-01-17 17:25   ` Vivek Goyal
2013-01-22  4:22 ` Rusty Russell

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