linux-kernel - [PATCH 0/3] KEYS: trusted_tpm1: HMAC fix and cleanup

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250731212354.105044-1-ebiggers@kernel.org>
Date: Thu, 31 Jul 2025 14:23:51 -0700
From: Eric Biggers <ebiggers@...nel.org>
To: James Bottomley <James.Bottomley@...senPartnership.com>,
	Jarkko Sakkinen <jarkko@...nel.org>,
	Mimi Zohar <zohar@...ux.ibm.com>,
	keyrings@...r.kernel.org
Cc: David Howells <dhowells@...hat.com>,
	linux-integrity@...r.kernel.org,
	linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Eric Biggers <ebiggers@...nel.org>
Subject: [PATCH 0/3] KEYS: trusted_tpm1: HMAC fix and cleanup

Patch 1 fixes the HMAC-SHA1 comparison in trusted_tpm1 to be
constant-time.

Patch 2 simplifies the SHA-1 and HMAC-SHA1 computation in trusted_tpm1
by using library APIs instead of crypto_shash.  Note that this depends
on the SHA-1 and HMAC-SHA1 library APIs that were merged for v6.17-rc1.

Patch 3 is a trusted_tpm1 cleanup that moves private functionality out
of a public header.

Eric Biggers (3):
  KEYS: trusted_tpm1: Compare HMAC values in constant time
  KEYS: trusted_tpm1: Use SHA-1 library instead of crypto_shash
  KEYS: trusted_tpm1: Move private functionality out of public header

 include/keys/trusted_tpm.h                |  79 ------
 security/keys/trusted-keys/Kconfig        |   5 +-
 security/keys/trusted-keys/trusted_tpm1.c | 284 ++++++++--------------
 3 files changed, 100 insertions(+), 268 deletions(-)


base-commit: d6084bb815c453de27af8071a23163a711586a6c
-- 
2.50.1