From: "Lee, Chun-Yi" <joeyli.kernel@gmail.com>
To: David Howells <dhowells@redhat.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
"David S . Miller" <davem@davemloft.net>,
Ben Boeckel <me@benboeckel.net>,
Randy Dunlap <rdunlap@infradead.org>,
Malte Gell <malte.gell@gmx.de>,
keyrings@vger.kernel.org, linux-crypto@vger.kernel.org,
linux-kernel@vger.kernel.org, "Lee, Chun-Yi" <jlee@suse.com>
Subject: [PATCH v5,4/4] Documentation/admin-guide/module-signing.rst: add openssl command option example for CodeSign EKU
Date: Mon, 12 Apr 2021 12:47:00 +0800 [thread overview]
Message-ID: <20210412044700.31639-5-jlee@suse.com> (raw)
In-Reply-To: <20210412044700.31639-1-jlee@suse.com>
Add an openssl command option example for generating CodeSign extended
key usage in X.509 when CONFIG_CHECK_CODESIGN_EKU is enabled.
Signed-off-by: "Lee, Chun-Yi" <jlee@suse.com>
---
Documentation/admin-guide/module-signing.rst | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/admin-guide/module-signing.rst b/Documentation/admin-guide/module-signing.rst
index 7d7c7c8a545c..ca3b8f19466c 100644
--- a/Documentation/admin-guide/module-signing.rst
+++ b/Documentation/admin-guide/module-signing.rst
@@ -170,6 +170,12 @@ generate the public/private key files::
-config x509.genkey -outform PEM -out kernel_key.pem \
-keyout kernel_key.pem
+When ``CONFIG_CHECK_CODESIGN_EKU`` option is enabled, the following openssl
+command option should be added where for generating CodeSign extended key usage
+in X.509::
+
+ -addext "extendedKeyUsage=codeSigning"
+
The full pathname for the resulting kernel_key.pem file can then be specified
in the ``CONFIG_MODULE_SIG_KEY`` option, and the certificate and key therein will
be used instead of an autogenerated keypair.
--
2.16.4
prev parent reply other threads:[~2021-04-12 4:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 4:46 [PATCH v5 0/4] Check codeSigning extended key usage extension Lee, Chun-Yi
2021-04-12 4:46 ` [PATCH v5,1/4] X.509: Add CodeSigning extended key usage parsing Lee, Chun-Yi
2021-04-12 4:46 ` [PATCH v5,2/4] PKCS#7: Check codeSigning EKU for kernel module and kexec pe verification Lee, Chun-Yi
2021-04-12 4:46 ` [PATCH v5,3/4] modsign: Add codeSigning EKU when generating X.509 key generation config Lee, Chun-Yi
2021-04-12 4:47 ` Lee, Chun-Yi [this message]
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