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Message-ID: <20240518213700.5960-1-jarkko@kernel.org>
Date: Sun, 19 May 2024 00:36:20 +0300
From: Jarkko Sakkinen <jarkko@...nel.org>
To: Herbert Xu <herbert@...dor.apana.org.au>
Cc: linux-integrity@...r.kernel.org,
keyrings@...r.kernel.org,
Andreas.Fuchs@...ineon.com,
James Prestwood <prestwoj@...il.com>,
David Woodhouse <dwmw2@...radead.org>,
Jarkko Sakkinen <jarkko@...nel.org>,
David Howells <dhowells@...hat.com>,
"David S. Miller" <davem@...emloft.net>,
Peter Huewe <peterhuewe@....de>,
Jason Gunthorpe <jgg@...pe.ca>,
James Bottomley <James.Bottomley@...senPartnership.com>,
Stefan Berger <stefanb@...ux.ibm.com>,
Ard Biesheuvel <ardb@...nel.org>,
Mario Limonciello <mario.limonciello@....com>,
linux-crypto@...r.kernel.org (open list:CRYPTO API),
linux-kernel@...r.kernel.org (open list)
Subject: [PATCH RFC 0/5] Asymmetric TPM2 key type
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/
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 | 12 +
crypto/asymmetric_keys/Makefile | 1 +
crypto/asymmetric_keys/tpm2_key_rsa.c | 648 ++++++++++++++++++
crypto/rsa-pkcs1pad.c | 16 +-
drivers/char/tpm/Kconfig | 5 +
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, 1027 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
--
2.45.1
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