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a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1597838505; bh=jegzxGOWWxku1BEfK7d5OdkiiOoj0AUn98nARCxu1eo=; h=X-PGP-Universal:ARC-Seal:ARC-Message-Signature: ARC-Authentication-Results:Authentication-Results:Date:From:To:CC: Subject:Message-ID:References:Content-Type:Content-Disposition: In-Reply-To:X-ClientProxiedBy:MIME-Version: X-MS-Exchange-MessageSentRepresentingType:X-Originating-IP: X-MS-PublicTrafficType:X-MS-Office365-Filtering-Correlation-Id: X-MS-TrafficTypeDiagnostic:X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers:X-MS-Exchange-SenderADCheck: X-Microsoft-Antispam:X-Microsoft-Antispam-Message-Info: X-Forefront-Antispam-Report:X-MS-Exchange-AntiSpam-MessageData: X-MS-Exchange-CrossTenant-Network-Message-Id: X-MS-Exchange-CrossTenant-AuthSource: X-MS-Exchange-CrossTenant-AuthAs: X-MS-Exchange-CrossTenant-OriginalArrivalTime: X-MS-Exchange-CrossTenant-FromEntityHeader: X-MS-Exchange-CrossTenant-Id:X-MS-Exchange-CrossTenant-MailboxType: X-MS-Exchange-CrossTenant-UserPrincipalName: X-MS-Exchange-Transport-CrossTenantHeadersStamped:X-OriginatorOrg; b=Kl7vuVp/YEELePjNxZ5BK1fDe4mEolFnDFo+Zzb/IHtaSzjuDDjuuBnI4iqQvTrtF mh1X7hnU17feMCF84Xn9tg6pmRMJd1a2nQSFndokBacITCUs9piEnrzCR3dWdfkzcn H0SyelSAUm4ltGi5Vh0ELijXBco4BI3taBltdL8QVyZbRq5LujDoSysQ32lU0nX53I w+mn/OSgj8UKu8LvB2hUuu5hmzjHd+y02dCB0mSgVqhZ8WgdkQeBNGJNfU51iw4geJ zjnfkc/RsLnrm8iZjNlzGFRaBYprKMwRnnyAqmOGRHTCNC/PQsQndksFjkUkooIcaS sP9o0GNkQrrjg== Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org On Tue, Aug 18, 2020 at 02:55:50PM -0400, Mimi Zohar wrote: > The problem is that there isn't just one single userspace library or > application for reading PCRs. So now not only is there the kernel > "boot_aggregate" regression testing, but regression testing of the tool > itself to support multiple methods of reading the PCRs. I was thinking just open code open("/dev/tpm") write(read_pcrs_cmd) read(read_pcrs_cmd) It isn't particularly hard to retrive the PCRs, don't really need to depend on a library. Jason