[PATCH v7 06/13] x86: Add early SHA support for Secure Launch early measurements

Eric Biggers ebiggers at kernel.org
Sat Nov 11 09:44:35 PST 2023


On Fri, Nov 10, 2023 at 05:27:44PM -0500, Ross Philipson wrote:
>  arch/x86/boot/compressed/early_sha1.c   | 12 ++++
>  lib/crypto/sha1.c                       | 81 +++++++++++++++++++++++++

It's surprising to still see this new use of SHA-1 after so many people objected
to it in the v6 patchset.  It's also frustrating that the SHA-1 support is still
being obfuscated by being combined in one patch with SHA-2 support, perhaps in
an attempt to conflate the two algorithms and avoid having to give a rationale
for the inclusion of SHA-1.  Finally, new functions should not be added to
lib/crypto/sha1.c unless those functions have multiple users.

- Eric



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