From patchwork Sun May 19 00:25:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jarkko Sakkinen X-Patchwork-Id: 13667750 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C77CC623; Sun, 19 May 2024 00:26:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716078384; cv=none; b=byNKuYZttZy6KynyTyBgE1VlbSpGKZpQqIoEtF9NNAawYrtua4+adBrM77ssCyKdhAzbT77B3iDL1rlMxDKUd51UtZED9UhMKUEt1TkJWE9W6iZzBragSWpg/26NDxyxZ3Ux6vMcbJGz2ETK+9kgDkcVt0BgW5z2b7/kRjZH5zs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716078384; c=relaxed/simple; bh=FnAEJAT2KZiL8xN2u659Y/J3RlLZadh5FrBsUs6TDVI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=ZvAZnMkmgnPpxaVgRdmfd3henT/CiMVq06k5wSXQZ+OhLERGPEhuO4J1ko/l9H6/r26I748miqWB3c0QIXFzEbnHzCgltLi1v7fMti7Zp+P3isFw1ZAh6CzPRn4uLghzBOVG7/Ju+wVQ41NVsmfnBRct09oVOHrBafFt4uSfe4M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tz0eW68c; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tz0eW68c" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9AF3BC113CC; Sun, 19 May 2024 00:26:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716078384; bh=FnAEJAT2KZiL8xN2u659Y/J3RlLZadh5FrBsUs6TDVI=; h=From:To:Cc:Subject:Date:From; b=tz0eW68cJTWmh6lhG7ABWp92O9wHXpAGC9uVpBO9Ao50ugeMlE35Eeo621Pcx8i19 jI9KP1eBn83Hi8nLVOj2beZOpEWNfVwMQJUbvbP81c46ilzextaUELyEF9BGEekVz9 lk1RRPdwA7KTGlcSm2ENeH9eZahpJiDzkpVEZCBSWvSWSAqDslewKOFRCdln94x5Jt EDU+nLwPhrCeLdU7ROlSiAMTYLDa0WJNirbNIGhdxRw/SGdUliQl47lVTWUfikplGM TMfpxuv/w3LgZe2bbwO9mgGkegIM72DFz5N9Jc7dTwZxQGb/7H1iSkWxsTks/rRlQR e7a4FAtVmPeZQ== From: Jarkko Sakkinen To: Herbert Xu Cc: linux-integrity@vger.kernel.org, keyrings@vger.kernel.org, Andreas.Fuchs@infineon.com, James Prestwood , David Woodhouse , Jarkko Sakkinen , David Howells , "David S. Miller" , Peter Huewe , Jason Gunthorpe , James Bottomley , Stefan Berger , Ard Biesheuvel , Mario Limonciello , linux-crypto@vger.kernel.org (open list:CRYPTO API), linux-kernel@vger.kernel.org (open list) Subject: [PATCH RFC v2 0/5] Asymmetric TPM2 key type Date: Sun, 19 May 2024 03:25:35 +0300 Message-ID: <20240519002616.4432-1-jarkko@kernel.org> X-Mailer: git-send-email 2.45.1 Precedence: bulk X-Mailing-List: keyrings@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 ## Overview Introduce tpm2_key_rsa implementing asymmetric TPM RSA key. I submit this first as RFC as I could not execute the keyctl padd in the following sequence (returns EBADF): tpm2_createprimary --hierarchy o -G rsa2048 -c owner.txt tpm2_evictcontrol -c owner.txt 0x81000001 tpm2_getcap handles-persistent openssl genrsa -out private.pem 2048 tpm2_import -C 0x81000001 -G rsa -i private.pem -u key.pub -r key.priv tpm2_encodeobject -C 0x81000001 -u key.pub -r key.priv -o key.priv.pem openssl asn1parse -inform pem -in key.priv.pem -noout -out key.priv.der key_serial=`cat key.priv.der | keyctl padd asymmetric tpm @u` This is derived work from James Prestwood’s earlier work from 2020: https://lore.kernel.org/all/20200518172704.29608-1-prestwoj@gmail.com/ ## Change Log v2: Sorry for rush update. I noticed that not all changes were in the commits. This version just fixes those compilation errors. James Prestwood (1): keys: asymmetric: ASYMMETRIC_TPM2_KEY_RSA_SUBTYPE Jarkko Sakkinen (4): crypto: rsa-pkcs1pad: export rsa1_asn_lookup() tpm: export tpm2_load_context() KEYS: trusted: Do not use WARN when encode fails KEYS: trusted: Migrate tpm2_key_{encode,decode}() to TPM driver crypto/asymmetric_keys/Kconfig | 13 + crypto/asymmetric_keys/Makefile | 1 + crypto/asymmetric_keys/tpm2_key_rsa.c | 655 ++++++++++++++++++ crypto/rsa-pkcs1pad.c | 16 +- drivers/char/tpm/Kconfig | 2 + drivers/char/tpm/Makefile | 5 + drivers/char/tpm/tpm.h | 2 - drivers/char/tpm/tpm2-cmd.c | 77 ++ drivers/char/tpm/tpm2-space.c | 61 -- drivers/char/tpm/tpm2_key.c | 192 +++++ .../char/tpm}/tpm2key.asn1 | 0 include/crypto/rsa-pkcs1pad.h | 20 + include/crypto/tpm2_key.h | 36 + include/linux/tpm.h | 3 + security/keys/trusted-keys/Makefile | 2 - security/keys/trusted-keys/trusted_tpm2.c | 183 +---- 16 files changed, 1032 insertions(+), 236 deletions(-) create mode 100644 crypto/asymmetric_keys/tpm2_key_rsa.c create mode 100644 drivers/char/tpm/tpm2_key.c rename {security/keys/trusted-keys => drivers/char/tpm}/tpm2key.asn1 (100%) create mode 100644 include/crypto/rsa-pkcs1pad.h create mode 100644 include/crypto/tpm2_key.h