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crypto: sha1 - Wrap library and add HMAC support

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Like I did for crypto/sha512.c, rework crypto/sha1_generic.c (renamed to
crypto/sha1.c) to simply wrap the normal library functions instead of
accessing the low-level block function directly.  Also add support for
HMAC-SHA1, again just wrapping the library functions.

Since the replacement crypto_shash algorithms are implemented using the
(potentially arch-optimized) library functions, give them driver names
ending with "-lib" rather than "-generic".  Update crypto/testmgr.c and
an odd driver to take this change in driver name into account.

Note: to see the diff from crypto/sha1_generic.c to crypto/sha1.c, view
this commit with 'git show -M10'.

Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20250712232329.818226-6-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
This commit is contained in:
Eric Biggers
2025-07-12 16:22:56 -07:00
parent 4cbc84471b
commit 8bc79ab67d
6 changed files with 145 additions and 90 deletions
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3
crypto/Kconfig
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@@ -986,7 +986,8 @@ config CRYPTO_SHA1
select CRYPTO_HASH
select CRYPTO_LIB_SHA1
help
SHA-1 secure hash algorithm (FIPS 180, ISO/IEC 10118-3)
SHA-1 secure hash algorithm (FIPS 180, ISO/IEC 10118-3), including
HMAC support.
config CRYPTO_SHA256
tristate "SHA-224 and SHA-256"