From: Jarkko Sakkinen <jarkko@kernel.org>
To: linux-integrity@vger.kernel.org
Cc: keyrings@vger.kernel.org, James.Bottomley@HansenPartnership.com,
Jarkko Sakkinen <jarkko@kernel.org>,
Peter Huewe <peterhuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>,
Mimi Zohar <zohar@linux.ibm.com>,
David Howells <dhowells@redhat.com>,
Paul Moore <paul@paul-moore.com>,
James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org
Subject: [PATCH] tpm: enable HMAC encryption for only x86-64 and aarch64
Date: Tue, 21 May 2024 16:09:20 +0300 [thread overview]
Message-ID: <20240521130921.15028-1-jarkko@kernel.org> (raw)
Let's be more conservative and enable HMAC by default only for the
platforms where it immediately makes sense, i.e. x86-64 and aarch64.
This can be relaxed later on, and obviously the kconfig option can be
set even if not default on a particular arch.
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Fixes: d2add27cf2b8 ("tpm: Add NULL primary creation")
Closes: https://lore.kernel.org/linux-integrity/D1FCAPJSYLTS.R9VC1CXDCIHH@kernel.org/
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
---
drivers/char/tpm/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index e63a6a17793c..19e61dcfcbbe 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -29,7 +29,7 @@ if TCG_TPM
config TCG_TPM2_HMAC
bool "Use HMAC and encrypted transactions on the TPM bus"
- default y
+ default X86_64 || ARM64
select CRYPTO_ECDH
select CRYPTO_LIB_AESCFB
select CRYPTO_LIB_SHA256
--
2.45.1
next reply other threads:[~2024-05-21 13:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-21 13:09 Jarkko Sakkinen [this message]
2024-05-21 13:26 ` [PATCH] tpm: enable HMAC encryption for only x86-64 and aarch64 James Bottomley
2024-05-21 14:02 ` Jarkko Sakkinen
2024-05-21 14:13 ` James Bottomley
2024-05-21 14:26 ` Jarkko Sakkinen
2024-05-21 14:35 ` Jarkko Sakkinen
2024-05-21 14:56 ` James Bottomley
2024-05-21 15:02 ` Jarkko Sakkinen
2024-05-21 15:01 ` Jarkko Sakkinen
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