From: Mimi Zohar <zohar@linux.vnet.ibm.com>
To: David Howells <dhowells@redhat.com>
Cc: linux-security-module@vger.kernel.org, keyrings@vger.kernel.org,
petkan@mip-labs.com, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 03/20] X.509: Allow X.509 certs to be blacklisted [ver #2]
Date: Wed, 20 Jan 2016 15:33:21 -0500 [thread overview]
Message-ID: <1453322001.9549.7.camel@linux.vnet.ibm.com> (raw)
In-Reply-To: <20160119113049.23238.92240.stgit@warthog.procyon.org.uk>
On Tue, 2016-01-19 at 11:30 +0000, David Howells wrote:
> Allow X.509 certs to be blacklisted based on their TBS hash.
What is the TBS hash? This doesn't seem to be the key identifier. The
cert associated with this key identifier is loaded onto the .ima
keyring.
eg: openssl x509 -in <pathname> -inform DER -notext -out
<snip>
X509v3 extensions:
X509v3 Subject Key Identifier:
71:12:39:B3:AB:E6:8D:BF:70:E7:26:DE:C8:4A:3F:5F:17:EF:00:6C
# keyctl show %keyring:.blacklist
Keyring
466574863 ---lswrv 0 0 keyring: .blacklist
433453563 ---lswrv 0 0 \_ blacklist:
711239b3abe68dbf70e726dec84a3f5f17ef006c
Mimi
> This is
> convenient since we have to determine this anyway to be able to check the
> signature on an X.509 certificate.
>
> If a certificate built into the kernel is blacklisted, something like the
> following might then be seen during boot:
>
> X.509: Cert 123412341234c55c1dcc601ab8e172917706aa32fb5eaf826813547fdf02dd46 is blacklisted
> Problem loading in-kernel X.509 certificate (-129)
>
> where the hex string shown is the blacklisted hash.
>
> Signed-off-by: David Howells <dhowells@redhat.com>
next prev parent reply other threads:[~2016-01-20 20:37 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-19 11:30 [RFC PATCH 00/20] KEYS: Restrict additions to 'trusted' keyrings [ver #2] David Howells
2016-01-19 11:30 ` [RFC PATCH 01/20] KEYS: Add an alloc flag to convey the builtinness of a key " David Howells
2016-01-20 18:58 ` Mimi Zohar
2016-02-03 15:30 ` David Howells
2016-01-19 11:30 ` [RFC PATCH 02/20] KEYS: Add a system blacklist keyring " David Howells
2016-01-20 19:31 ` Mimi Zohar
2016-02-03 15:27 ` David Howells
2016-02-08 13:34 ` Mimi Zohar
2016-02-08 13:55 ` David Howells
2016-02-08 15:03 ` Mimi Zohar
2016-02-08 15:53 ` How to add additional blacklist entries? David Howells
2016-02-08 16:32 ` Mimi Zohar
2016-02-08 16:43 ` David Howells
2016-02-08 19:28 ` Mimi Zohar
2016-02-09 10:42 ` David Howells
2016-02-10 14:07 ` Mimi Zohar
2016-02-08 14:55 ` [RFC PATCH 02/20] KEYS: Add a system blacklist keyring [ver #2] David Howells
2016-02-08 16:39 ` Mimi Zohar
2016-02-19 11:48 ` David Howells
2016-01-20 20:26 ` Mimi Zohar
2016-02-03 15:29 ` David Howells
2016-01-19 11:30 ` [RFC PATCH 03/20] X.509: Allow X.509 certs to be blacklisted " David Howells
2016-01-20 20:33 ` Mimi Zohar [this message]
2016-02-03 15:46 ` David Howells
2016-02-05 16:16 ` Mimi Zohar
2016-01-19 11:30 ` [RFC PATCH 04/20] X.509: Don't treat self-signed keys specially " David Howells
2016-01-20 20:40 ` Mimi Zohar
2016-01-19 11:31 ` [RFC PATCH 05/20] KEYS: Generalise system_verify_data() to provide access to internal content " David Howells
2016-01-19 11:31 ` [RFC PATCH 06/20] PKCS#7: Make trust determination dependent on contents of trust keyring " David Howells
2016-01-19 11:31 ` [RFC PATCH 07/20] KEYS: Add a facility to restrict new links into a " David Howells
2016-02-08 11:59 ` Mimi Zohar
2016-02-29 15:49 ` David Howells
2016-01-19 11:31 ` [RFC PATCH 08/20] KEYS: Allow authentication data to be stored in an asymmetric key " David Howells
2016-01-19 11:31 ` [RFC PATCH 09/20] KEYS: Add identifier pointers to public_key_signature struct " David Howells
2016-01-19 11:31 ` [RFC PATCH 10/20] X.509: Retain the key verification data " David Howells
2016-01-19 11:31 ` [RFC PATCH 11/20] X.509: Extract signature digest and make self-signed cert checks earlier " David Howells
2016-01-19 11:31 ` [RFC PATCH 12/20] PKCS#7: Make the signature a pointer rather than embedding it " David Howells
2016-02-08 12:00 ` Mimi Zohar
2016-02-19 11:56 ` David Howells
2016-01-19 11:32 ` [RFC PATCH 13/20] X.509: Move the trust validation code out to its own file " David Howells
2016-02-08 11:59 ` Mimi Zohar
2016-01-19 11:32 ` [RFC PATCH 14/20] KEYS: Generalise x509_request_asymmetric_key() " David Howells
2016-02-08 11:59 ` Mimi Zohar
2016-01-19 11:32 ` [RFC PATCH 15/20] KEYS: Move the point of trust determination to __key_link() " David Howells
2016-01-19 11:32 ` [RFC PATCH 16/20] KEYS: Remove KEY_FLAG_TRUSTED and KEY_ALLOC_TRUSTED " David Howells
2016-01-19 11:32 ` [RFC PATCH 17/20] PKCS#7: Handle blacklisted certificates " David Howells
2016-01-19 11:32 ` [RFC PATCH 18/20] IMA: Use the system blacklist keyring " David Howells
2016-02-10 19:12 ` Mimi Zohar
2016-02-19 11:58 ` David Howells
2016-02-19 12:16 ` Mimi Zohar
2016-01-19 11:32 ` [RFC PATCH 19/20] certs: Add a secondary system keyring that can be added to dynamically " David Howells
2016-01-19 11:32 ` [RFC PATCH 20/20] IMA: Replace the .ima_mok keyring with the secondary system keyring " David Howells
2016-01-20 17:24 ` [RFC PATCH 00/20] KEYS: Restrict additions to 'trusted' keyrings " Petko Manolov
2016-02-03 15:47 ` David Howells
2016-01-20 18:57 ` Mimi Zohar
2016-02-03 15:56 ` David Howells
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1453322001.9549.7.camel@linux.vnet.ibm.com \
--to=zohar@linux.vnet.ibm.com \
--cc=dhowells@redhat.com \
--cc=keyrings@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-security-module@vger.kernel.org \
--cc=petkan@mip-labs.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.