From: Dimitri John Ledkov <dimitri.ledkov@canonical.com>
To: herbert@gondor.apana.org.au, David Howells <dhowells@redhat.com>,
David Woodhouse <dwmw2@infradead.org>,
Jonathan Corbet <corbet@lwn.net>
Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
keyrings@vger.kernel.org, linux-doc@vger.kernel.org
Subject: [PATCH 6/6] Documentation/module-signing.txt: bring up to date
Date: Sun, 22 Oct 2023 19:22:08 +0100 [thread overview]
Message-ID: <20231022182208.188714-7-dimitri.ledkov@canonical.com> (raw)
In-Reply-To: <20231022182208.188714-1-dimitri.ledkov@canonical.com>
Update the documentation to mention that ECC NIST P-384 automatic
keypair generation is available to use ECDSA signature type, in
addition to the RSA.
Drop mentions of the now removed SHA-1 and SHA-224 options.
Add the just added FIPS 202 SHA-3 module signature hashes.
Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@canonical.com>
---
Documentation/admin-guide/module-signing.rst | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/Documentation/admin-guide/module-signing.rst b/Documentation/admin-guide/module-signing.rst
index 2898b27032..a8667a7774 100644
--- a/Documentation/admin-guide/module-signing.rst
+++ b/Documentation/admin-guide/module-signing.rst
@@ -28,10 +28,10 @@ trusted userspace bits.
This facility uses X.509 ITU-T standard certificates to encode the public keys
involved. The signatures are not themselves encoded in any industrial standard
-type. The facility currently only supports the RSA public key encryption
-standard (though it is pluggable and permits others to be used). The possible
-hash algorithms that can be used are SHA-1, SHA-224, SHA-256, SHA-384, and
-SHA-512 (the algorithm is selected by data in the signature).
+type. The built-in facility currently only supports the RSA & NIST P-384 ECDSA
+public key signing standard (though it is pluggable and permits others to be
+used). The possible hash algorithms that can be used are SHA-2 and SHA-3 of
+sizes 256, 384, and 512 (the algorithm is selected by data in the signature).
==========================
@@ -81,11 +81,12 @@ This has a number of options available:
sign the modules with:
=============================== ==========================================
- ``CONFIG_MODULE_SIG_SHA1`` :menuselection:`Sign modules with SHA-1`
- ``CONFIG_MODULE_SIG_SHA224`` :menuselection:`Sign modules with SHA-224`
``CONFIG_MODULE_SIG_SHA256`` :menuselection:`Sign modules with SHA-256`
``CONFIG_MODULE_SIG_SHA384`` :menuselection:`Sign modules with SHA-384`
``CONFIG_MODULE_SIG_SHA512`` :menuselection:`Sign modules with SHA-512`
+ ``CONFIG_MODULE_SIG_SHA3_256`` :menuselection:`Sign modules with SHA3-256`
+ ``CONFIG_MODULE_SIG_SHA3_384`` :menuselection:`Sign modules with SHA3-384`
+ ``CONFIG_MODULE_SIG_SHA3_512`` :menuselection:`Sign modules with SHA3-512`
=============================== ==========================================
The algorithm selected here will also be built into the kernel (rather
@@ -145,6 +146,10 @@ into vmlinux) using parameters in the::
file (which is also generated if it does not already exist).
+One can select between RSA (``MODULE_SIG_KEY_TYPE_RSA``) and ECDSA
+(``MODULE_SIG_KEY_TYPE_ECDSA``) to generate either RSA 4k or NIST
+P-384 keypair.
+
It is strongly recommended that you provide your own x509.genkey file.
Most notably, in the x509.genkey file, the req_distinguished_name section
--
2.34.1
next prev parent reply other threads:[~2023-10-22 18:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-22 18:22 [PATCH 0/6] crypto: pkcs7 x509 add FIPS 202 SHA-3 support Dimitri John Ledkov
2023-10-22 18:22 ` [PATCH 1/6] x509: Add OIDs for FIPS 202 SHA-3 hash and signatures Dimitri John Ledkov
2023-10-22 18:22 ` [PATCH 2/6] crypto: FIPS 202 SHA-3 register in hash info for IMA Dimitri John Ledkov
2023-10-22 18:22 ` [PATCH 3/6] crypto: rsa-pkcs1pad - Add FIPS 202 SHA-3 support Dimitri John Ledkov
2023-10-22 18:22 ` [PATCH 4/6] crypto: x509 pkcs7 - allow FIPS 202 SHA-3 signatures Dimitri John Ledkov
2023-10-22 18:22 ` [PATCH 5/6] crypto: enable automatic module signing with FIPS 202 SHA-3 Dimitri John Ledkov
2023-10-22 18:22 ` Dimitri John Ledkov [this message]
2023-10-27 10:57 ` [PATCH 0/6] crypto: pkcs7 x509 add FIPS 202 SHA-3 support Herbert Xu
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=20231022182208.188714-7-dimitri.ledkov@canonical.com \
--to=dimitri.ledkov@canonical.com \
--cc=corbet@lwn.net \
--cc=dhowells@redhat.com \
--cc=dwmw2@infradead.org \
--cc=herbert@gondor.apana.org.au \
--cc=keyrings@vger.kernel.org \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).