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Eric Biggers f1799d1728 crypto: sha3 - Reimplement using library API
Replace sha3_generic.c with a new file sha3.c which implements the SHA-3
crypto_shash algorithms on top of the SHA-3 library API.

Change the driver name suffix from "-generic" to "-lib" to reflect that
these algorithms now just use the (possibly arch-optimized) library.

This closely mirrors crypto/{md5,sha1,sha256,sha512,blake2b}.c.

Implement export_core and import_core, since crypto/hmac.c expects these
to be present.  (Note that there is no security purpose in wrapping
SHA-3 with HMAC.  HMAC was designed for older algorithms that don't
resist length extension attacks.  But since someone could be using
"hmac(sha3-*)" via crypto_shash anyway, keep supporting it for now.)

Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20251026055032.1413733-15-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
History 2025-11-05 20:30:51 -08:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
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    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.