From nobody Tue Feb 10 06:58:54 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) client-ip=66.175.222.108; envelope-from=bounce+27952+106860+1787277+3901457@groups.io; helo=mail02.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+106860+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=arm.com ARC-Seal: i=1; a=rsa-sha256; t=1689168615; cv=none; d=zohomail.com; s=zohoarc; b=IeeU58lP2z7UgyfCYX3TYGZMOCt7KO7HcbNx32RHNIHqMu+LoKj24H1fQHtcYOGED3aclkA/xegendjO+p0ksWvo0qb3evIKZlPTFj71N8WYVTSN7BLaZs0iNNvV0Ch2lGCRwc/LG9BFWzTiKP4+7y4tT00PxKmsYdAj5KzZDZE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1689168615; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:References:Sender:Subject:To; bh=Tro6O7K1wi3j8J7iuwYCURDYDQbIotlDoXLooR5BF60=; b=Q7reWJsExPL1V8IoP+ZPwEL+G88a9Ow3HCUqLAh1fxqWLbWQW7cVIlRTyB7Sb9/Kf4JdT9GeM2dNGosYC8Ml8mATXi0MQiY58dwcxe5F1bkbH7vMK7+fbbdoGQLjqRj5yXPmP/6YdDFGnMvCo9k3gHnrd0NVbYO5nPQGcQoccNA= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+106860+1787277+3901457@groups.io; dmarc=fail header.from= (p=none dis=none) Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1689168615669136.67544813669633; Wed, 12 Jul 2023 06:30:15 -0700 (PDT) Return-Path: DKIM-Signature: a=rsa-sha256; bh=st43hh6K6Gl3b4yu+P3iUrLmCZmH5D+9P+VtKX/VgP8=; c=relaxed/simple; d=groups.io; h=X-Received:X-Received:X-Received:X-Received:From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References:MIME-Version:Precedence:List-Unsubscribe:List-Subscribe:List-Help:Sender:List-Id:Mailing-List:Delivered-To:Reply-To:X-Gm-Message-State:Content-Transfer-Encoding; s=20140610; t=1689168615; v=1; b=aP58Md9q/5W7FU7cC8yqC3tCiCKMY5KrOF5nWgJqCjeHDXWKXzUvhwxb1Nf0J7CyrVEh3UGl NFg8vdcNvvCm+/bir44cznLSr3nt4qDUslMF+9430zuP+0k87wA9iZHkB6CWv0KbPdfYrvMFdhY Bv4ZBfnIEc34paGsLZPq3zFI= X-Received: by 127.0.0.2 with SMTP id 6zlUYY1788612xufhrL2z9Bb; Wed, 12 Jul 2023 06:30:15 -0700 X-Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mx.groups.io with SMTP id smtpd.web10.7322.1689168614491636025 for ; Wed, 12 Jul 2023 06:30:14 -0700 X-Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9B3D6150C; Wed, 12 Jul 2023 06:30:56 -0700 (PDT) X-Received: from e126645.home (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id F266D3F67D; Wed, 12 Jul 2023 06:30:11 -0700 (PDT) From: "PierreGondois" To: devel@edk2.groups.io Cc: Michael D Kinney , Liming Gao , Zhiguang Liu , Jiewen Yao , Jian J Wang , Ard Biesheuvel , Sami Mujawar , Jose Marinho , Kun Qin , pierre.gondois@arm.com Subject: [edk2-devel] [PATCH v4 4/8] MdePkg/Rng: Add GUID to describe Arm Rndr Rng algorithms Date: Wed, 12 Jul 2023 15:29:43 +0200 Message-Id: <20230712132947.332643-5-pierre.gondois@arm.com> In-Reply-To: <20230712132947.332643-1-pierre.gondois@arm.com> References: <20230712132947.332643-1-pierre.gondois@arm.com> MIME-Version: 1.0 Precedence: Bulk List-Unsubscribe: List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,pierre.gondois@arm.com X-Gm-Message-State: UcQRGaPY7ZT4lE5SCTqsMcnVx1787277AA= Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1689168616348100017 Content-Type: text/plain; charset="utf-8" From: Pierre Gondois BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3D4441 The EFI_RNG_PROTOCOL can rely on the RngLib. The RngLib has multiple implementations, some of them are unsafe (e.g. BaseRngLibTimerLib). To allow the RngDxe to detect when such implementation is used, a GetRngGuid() function is added in a following patch. Prepare GetRngGuid() return values and add a gEfiRngAlgorithmArmRndr to describe a Rng algorithm accessed through Arm's RNDR instruction. [1] states that the implementation of this algorithm should be compliant to NIST SP900-80. The compliance is not guaranteed. [1] Arm Architecture Reference Manual Armv8, for A-profile architecture sK12.1 'Properties of the generated random number' Signed-off-by: Pierre Gondois Reviewed-by: Sami Mujawar --- MdePkg/Include/Protocol/Rng.h | 10 ++++++++++ MdePkg/MdePkg.dec | 1 + 2 files changed, 11 insertions(+) diff --git a/MdePkg/Include/Protocol/Rng.h b/MdePkg/Include/Protocol/Rng.h index baf425587b3c..38bde53240d1 100644 --- a/MdePkg/Include/Protocol/Rng.h +++ b/MdePkg/Include/Protocol/Rng.h @@ -67,6 +67,15 @@ typedef EFI_GUID EFI_RNG_ALGORITHM; { \ 0xe43176d7, 0xb6e8, 0x4827, {0xb7, 0x84, 0x7f, 0xfd, 0xc4, 0xb6, 0x85,= 0x61 } \ } +/// +/// The Arm Architecture states the RNDR that the DRBG algorithm should be= compliant +/// with NIST SP800-90A, while not mandating a particular algorithm, so as= to be +/// inclusive of different geographies. +/// +#define EFI_RNG_ALGORITHM_ARM_RNDR \ + { \ + 0x43d2fde3, 0x9d4e, 0x4d79, {0x02, 0x96, 0xa8, 0x9b, 0xca, 0x78, 0x08= , 0x41} \ + } =20 /** Returns information about the random number generation implementation. @@ -146,5 +155,6 @@ extern EFI_GUID gEfiRngAlgorithmSp80090Ctr256Guid; extern EFI_GUID gEfiRngAlgorithmX9313DesGuid; extern EFI_GUID gEfiRngAlgorithmX931AesGuid; extern EFI_GUID gEfiRngAlgorithmRaw; +extern EFI_GUID gEfiRngAlgorithmArmRndr; =20 #endif diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index 5b8477f4cb8f..ac54338089e8 100644 --- a/MdePkg/MdePkg.dec +++ b/MdePkg/MdePkg.dec @@ -643,6 +643,7 @@ [Guids] gEfiRngAlgorithmX9313DesGuid =3D { 0x63c4785a, 0xca34, 0x4012, {0x= a3, 0xc8, 0x0b, 0x6a, 0x32, 0x4f, 0x55, 0x46 }} gEfiRngAlgorithmX931AesGuid =3D { 0xacd03321, 0x777e, 0x4d3d, {0x= b1, 0xc8, 0x20, 0xcf, 0xd8, 0x88, 0x20, 0xc9 }} gEfiRngAlgorithmRaw =3D { 0xe43176d7, 0xb6e8, 0x4827, {0x= b7, 0x84, 0x7f, 0xfd, 0xc4, 0xb6, 0x85, 0x61 }} + gEfiRngAlgorithmArmRndr =3D { 0x43d2fde3, 0x9d4e, 0x4d79, {0x= 02, 0x96, 0xa8, 0x9b, 0xca, 0x78, 0x08, 0x41 }} =20 ## Include/Protocol/AdapterInformation.h gEfiAdapterInfoMediaStateGuid =3D { 0xD7C74207, 0xA831, 0x4A26, {0= xB1, 0xF5, 0xD1, 0x93, 0x06, 0x5C, 0xE8, 0xB6 }} --=20 2.25.1 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#106860): https://edk2.groups.io/g/devel/message/106860 Mute This Topic: https://groups.io/mt/100099384/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-