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5abe8d8efc
This is the main crypto library pull request for 6.19. It includes:
- Add SHA-3 support to lib/crypto/, including support for both the
hash functions and the extendable-output functions. Reimplement the
existing SHA-3 crypto_shash support on top of the library.
This is motivated mainly by the upcoming support for the ML-DSA
signature algorithm, which needs the SHAKE128 and SHAKE256
functions. But even on its own it's a useful cleanup.
This also fixes the longstanding issue where the
architecture-optimized SHA-3 code was disabled by default.
- Add BLAKE2b support to lib/crypto/, and reimplement the existing
BLAKE2b crypto_shash support on top of the library.
This is motivated mainly by btrfs, which supports BLAKE2b checksums.
With this change, all btrfs checksum algorithms now have library
APIs. btrfs is planned to start just using the library directly.
This refactor also improves consistency between the BLAKE2b code and
BLAKE2s code. And as usual, it also fixes the issue where the
architecture-optimized BLAKE2b code was disabled by default.
- Add POLYVAL support to lib/crypto/, replacing the existing POLYVAL
support in crypto_shash. Reimplement HCTR2 on top of the library.
This simplifies the code and improves HCTR2 performance. As usual,
it also makes the architecture-optimized code be enabled by default.
The generic implementation of POLYVAL is greatly improved as well.
- Clean up the BLAKE2s code.
- Add FIPS self-tests for SHA-1, SHA-2, and SHA-3.
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Merge tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library updates from Eric Biggers:
"This is the main crypto library pull request for 6.19. It includes:
- Add SHA-3 support to lib/crypto/, including support for both the
hash functions and the extendable-output functions. Reimplement the
existing SHA-3 crypto_shash support on top of the library.
This is motivated mainly by the upcoming support for the ML-DSA
signature algorithm, which needs the SHAKE128 and SHAKE256
functions. But even on its own it's a useful cleanup.
This also fixes the longstanding issue where the
architecture-optimized SHA-3 code was disabled by default.
- Add BLAKE2b support to lib/crypto/, and reimplement the existing
BLAKE2b crypto_shash support on top of the library.
This is motivated mainly by btrfs, which supports BLAKE2b
checksums. With this change, all btrfs checksum algorithms now have
library APIs. btrfs is planned to start just using the library
directly.
This refactor also improves consistency between the BLAKE2b code
and BLAKE2s code. And as usual, it also fixes the issue where the
architecture-optimized BLAKE2b code was disabled by default.
- Add POLYVAL support to lib/crypto/, replacing the existing POLYVAL
support in crypto_shash. Reimplement HCTR2 on top of the library.
This simplifies the code and improves HCTR2 performance. As usual,
it also makes the architecture-optimized code be enabled by
default. The generic implementation of POLYVAL is greatly improved
as well.
- Clean up the BLAKE2s code
- Add FIPS self-tests for SHA-1, SHA-2, and SHA-3"
* tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (37 commits)
fscrypt: Drop obsolete recommendation to enable optimized POLYVAL
crypto: polyval - Remove the polyval crypto_shash
crypto: hctr2 - Convert to use POLYVAL library
lib/crypto: x86/polyval: Migrate optimized code into library
lib/crypto: arm64/polyval: Migrate optimized code into library
lib/crypto: polyval: Add POLYVAL library
crypto: polyval - Rename conflicting functions
lib/crypto: x86/blake2s: Use vpternlogd for 3-input XORs
lib/crypto: x86/blake2s: Avoid writing back unchanged 'f' value
lib/crypto: x86/blake2s: Improve readability
lib/crypto: x86/blake2s: Use local labels for data
lib/crypto: x86/blake2s: Drop check for nblocks == 0
lib/crypto: x86/blake2s: Fix 32-bit arg treated as 64-bit
lib/crypto: arm, arm64: Drop filenames from file comments
lib/crypto: arm/blake2s: Fix some comments
crypto: s390/sha3 - Remove superseded SHA-3 code
crypto: sha3 - Reimplement using library API
crypto: jitterentropy - Use default sha3 implementation
lib/crypto: s390/sha3: Add optimized one-shot SHA-3 digest functions
lib/crypto: sha3: Support arch overrides of one-shot digest functions
...
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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
``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.