From patchwork Tue Sep 22 02:28:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Bottomley X-Patchwork-Id: 11791345 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5AA716CA for ; Tue, 22 Sep 2020 02:28:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2BD58207C3 for ; Tue, 22 Sep 2020 02:28:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=hansenpartnership.com header.i=@hansenpartnership.com header.b="D9HMXojr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729616AbgIVC2N (ORCPT ); Mon, 21 Sep 2020 22:28:13 -0400 Received: from bedivere.hansenpartnership.com ([66.63.167.143]:35624 "EHLO bedivere.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728949AbgIVC2N (ORCPT ); Mon, 21 Sep 2020 22:28:13 -0400 Received: from localhost (localhost [127.0.0.1]) by bedivere.hansenpartnership.com (Postfix) with ESMTP id B650D8EE194; Mon, 21 Sep 2020 19:28:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=hansenpartnership.com; s=20151216; t=1600741692; bh=7L2UktFYKAFj7EsYb2zzL57xZpe3m1TuQMkBDDO3Zn4=; h=From:To:Cc:Subject:Date:From; b=D9HMXojrRePe5iWEISu5tPdso7/xMw+lY/sQqZzAiLIO1TpEoMsBj9+dDbQcylyDE QgrxOESDhgL/lUsGXkHF6uVEyal1CvigW3NyTM6LvG9gUSGP7OcDxg1M62nPczRghv sxnyn2btVdZqjx8CKQVsqPJkXDLD9i9qpD/l5LmQ= Received: from bedivere.hansenpartnership.com ([127.0.0.1]) by localhost (bedivere.hansenpartnership.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UAHQKGLfl0X5; Mon, 21 Sep 2020 19:28:12 -0700 (PDT) Received: from jarvis.int.hansenpartnership.com (jarvis.ext.hansenpartnership.com [153.66.160.226]) by bedivere.hansenpartnership.com (Postfix) with ESMTP id 22AE68EE0CF; Mon, 21 Sep 2020 19:28:12 -0700 (PDT) From: James Bottomley To: linux-integrity@vger.kernel.org Cc: Mimi Zohar , Jarkko Sakkinen , David Woodhouse , keyrings@vger.kernel.org, David Howells Subject: [PATCH v13 0/5] TPM 2.0 trusted key rework Date: Mon, 21 Sep 2020 19:28:04 -0700 Message-Id: <20200922022809.7105-1-James.Bottomley@HansenPartnership.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org Updated to fix compile problem identified by 0day General cover letter minus policy bit: This patch updates the trusted key code to export keys in the ASN.1 format used by current TPM key tools (openssl_tpm2_engine and openconnect). The current code will try to load keys containing policy, but being unable to formulate the policy commands necessary to load them, the unseal will always fail unless the policy is executed in user space and a pre-formed policy session passed in. The key format is designed to be compatible with our two openssl engine implementations as well as with the format used by openconnect. I've added seal/unseal to my engine so I can use it for interoperability testing and I'll later use this for sealed symmetric keys via engine: https://git.kernel.org/pub/scm/linux/kernel/git/jejb/openssl_tpm2_engine.git/ James --- James Bottomley (5): lib: add ASN.1 encoder oid_registry: Add TCG defined OIDS for TPM keys security: keys: trusted: fix TPM2 authorizations security: keys: trusted: use ASN.1 TPM2 key format for the blobs security: keys: trusted: Make sealed key properly interoperable .../security/keys/trusted-encrypted.rst | 58 +++ include/keys/trusted-type.h | 2 + include/linux/asn1_encoder.h | 32 ++ include/linux/oid_registry.h | 5 + include/linux/tpm.h | 2 + lib/Kconfig | 3 + lib/Makefile | 1 + lib/asn1_encoder.c | 454 ++++++++++++++++++ security/keys/Kconfig | 2 + security/keys/trusted-keys/Makefile | 4 +- security/keys/trusted-keys/tpm2key.asn1 | 11 + security/keys/trusted-keys/trusted_tpm1.c | 34 +- security/keys/trusted-keys/trusted_tpm2.c | 266 +++++++++- 13 files changed, 843 insertions(+), 31 deletions(-) create mode 100644 include/linux/asn1_encoder.h create mode 100644 lib/asn1_encoder.c create mode 100644 security/keys/trusted-keys/tpm2key.asn1