linux-kernel - [PATCH 2/9] keys: update the description with info about "logon" keys

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20120328104619.10417.78851.stgit@warthog.procyon.org.uk>
Date:	Wed, 28 Mar 2012 11:46:19 +0100
From:	David Howells <dhowells@...hat.com>
To:	jmorris@...ei.org
Cc:	linux-security-module@...r.kernel.org, keyrings@...ux-nfs.org,
	linux-kernel@...r.kernel.org, Jeff Layton <jlayton@...hat.com>,
	David Howells <dhowells@...hat.com>
Subject: [PATCH 2/9] keys: update the description with info about "logon" keys

From: Jeff Layton <jlayton@...hat.com>

Signed-off-by: Jeff Layton <jlayton@...hat.com>
Signed-off-by: David Howells <dhowells@...hat.com>
---

 Documentation/security/keys.txt |   15 ++++++++++++++-
 1 files changed, 14 insertions(+), 1 deletions(-)

diff --git a/Documentation/security/keys.txt b/Documentation/security/keys.txt
index 7877170..4c8cf36 100644
--- a/Documentation/security/keys.txt
+++ b/Documentation/security/keys.txt
@@ -123,7 +123,7 @@ KEY SERVICE OVERVIEW
 
 The key service provides a number of features besides keys:
 
- (*) The key service defines two special key types:
+ (*) The key service defines three special key types:
 
      (+) "keyring"
 
@@ -137,6 +137,19 @@ The key service provides a number of features besides keys:
 	 blobs of data. These can be created, updated and read by userspace,
 	 and aren't intended for use by kernel services.
 
+     (+) "logon"
+
+         Like a "user" key, a "logon" key has a payload that is an arbitrary
+         blob of data. It is intended as a place to store secrets that the
+         to which the kernel should have access but that should not be
+         accessable from userspace.
+
+         The description can be arbitrary, but must be prefixed with a non-zero
+         length string that describes the key "subclass". The subclass is
+         separated from the rest of the description by a ':'. "logon" keys can
+         be created and updated by userspace, but the payload is only readable
+         from kernel space.
+
  (*) Each process subscribes to three keyrings: a thread-specific keyring, a
      process-specific keyring, and a session-specific keyring.
 

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/