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4cbc84471b
Add HMAC support to the SHA-1 library, again following what was done for SHA-2. Besides providing the basis for a more streamlined "hmac(sha1)" shash, this will also be useful for multiple in-kernel users such as net/sctp/auth.c, net/ipv6/seg6_hmac.c, and security/keys/trusted-keys/trusted_tpm1.c. Those are currently using crypto_shash, but using the library functions would be much simpler. Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20250712232329.818226-5-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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
``make pdfdocs``. The formatted documentation can also be read online at:
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.