From patchwork Thu Aug 25 14:23:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chun-Yi Lee X-Patchwork-Id: 12954805 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7DD2EC64990 for ; Thu, 25 Aug 2022 14:24:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241393AbiHYOYY (ORCPT ); Thu, 25 Aug 2022 10:24:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38852 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241339AbiHYOXf (ORCPT ); Thu, 25 Aug 2022 10:23:35 -0400 Received: from mail-pg1-x534.google.com (mail-pg1-x534.google.com [IPv6:2607:f8b0:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0875FB6014; Thu, 25 Aug 2022 07:23:31 -0700 (PDT) Received: by mail-pg1-x534.google.com with SMTP id 12so18037027pga.1; Thu, 25 Aug 2022 07:23:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc; bh=cVU0VI6SHUHssnCSIRaLHSdROjTj9L70izUE69+SVQI=; b=iyeuTXiHSUNy2JLfnzmnkGQBac1RWC4oduQxuaWC+q+SJbRjdpKqlX0/4EzSoBVRgb Q+0KkXZ35/EWiIxymYBc6rZ53bXyImV9j+UTHri6pA8gSyXS19kub5PnMoeRf/Ab5HoN 8o4w3ilhynUVrB4sCn6Yo6PVAEGi7guxxZxA5Ws/ypvwkKOOY4NQJ1NYORW/G6zgeFAJ Tlv/bG9T/H0f6dL6YCW7LSX7n4ej9R8ZteyIhqbjVSvZr4VBpEO6+953FdIV/P5Gcr+i Q/7sqwCGhvojVOxXSIofPwZHurCDXFekWIATZC02M+p7i1zKzWh4IxjitDpGpYsOvlKj 7kmg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc; bh=cVU0VI6SHUHssnCSIRaLHSdROjTj9L70izUE69+SVQI=; b=Y4a66fE6pdwGEvDn2qimzNX+scVuaeN4+xMS80tUAfCy+aHvWFzSvtBCtgOT9xs+s6 cdDaYhyB01JgVvk2CgBUPddU/CC3DoBI3vWq/FszCz0vwHPjruDf/6UxeOnD/5mSqb/e hnb7MOQTpVrxrWht8O10cM8bYTtKmuHkjxm7FNCCvn8B/qTeIr4gvhd1VMcRKre5ZfLL aD0y9ekdixKP9GGcvOqb6AJljZ/1csfQ786bSa3Inv9nSPg7sg4LfeZg2qHGzPvE9XAN sR1f+A9zsOserQ9jo+37fQ4ooIcSgCxjvEx1E0S1Zl+FKGTOLzvqNwHHbuFAN7edjbpI JfJw== X-Gm-Message-State: ACgBeo3C2RiTCILvNS36QEBlehKiatl+bPzt/4M6zmlyQtfRBwG+AASA GPjxvBXkHHHbkpt9czpLKHw= X-Google-Smtp-Source: AA6agR47nAW/DbDYMnn/wzQQJNghFOEv8l4oZniUR/03+jNEV658GYe4pMs43MGah7jY4Rp48X4PSA== X-Received: by 2002:a05:6a00:1402:b0:536:bf1c:3d16 with SMTP id l2-20020a056a00140200b00536bf1c3d16mr4516591pfu.20.1661437410518; Thu, 25 Aug 2022 07:23:30 -0700 (PDT) Received: from linux-l9pv.suse (123-194-152-128.dynamic.kbronet.com.tw. [123.194.152.128]) by smtp.gmail.com with ESMTPSA id l15-20020a170903120f00b0016bb24f5d19sm14962803plh.209.2022.08.25.07.23.28 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 25 Aug 2022 07:23:30 -0700 (PDT) From: "Lee, Chun-Yi" X-Google-Original-From: "Lee, Chun-Yi" To: David Howells Cc: Herbert Xu , "David S . Miller" , Ben Boeckel , Randy Dunlap , Malte Gell , Varad Gautam , Jarkko Sakkinen , Mimi Zohar , keyrings@vger.kernel.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, "Lee, Chun-Yi" Subject: [PATCH v9,4/4] Documentation/admin-guide/module-signing.rst: add openssl command option example for CodeSign EKU Date: Thu, 25 Aug 2022 22:23:14 +0800 Message-Id: <20220825142314.8406-5-jlee@suse.com> X-Mailer: git-send-email 2.12.3 In-Reply-To: <20220825142314.8406-1-jlee@suse.com> References: <20220825142314.8406-1-jlee@suse.com> Precedence: bulk List-ID: X-Mailing-List: keyrings@vger.kernel.org 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" --- 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.