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04cadb4fe0
Add FIPS cryptographic algorithm self-tests for all SHA-1 and SHA-2 algorithms. Following the "Implementation Guidance for FIPS 140-3" document, to achieve this it's sufficient to just test a single test vector for each of HMAC-SHA1, HMAC-SHA256, and HMAC-SHA512. Just run these tests in the initcalls, following the example of e.g. crypto/kdf_sp800108.c. Note that this should meet the FIPS self-test requirement even in the built-in case, given that the initcalls run before userspace, storage, network, etc. are accessible. This does not fix a regression, seeing as lib/ has had SHA-1 support since 2005 and SHA-256 support since 2018. Neither ever had FIPS self-tests. Moreover, fips=1 support has always been an unfinished feature upstream. However, with lib/ now being used more widely, it's now seeing more scrutiny and people seem to want these now [1][2]. [1] https://lore.kernel.org/r/3226361.1758126043@warthog.procyon.org.uk/ [2] https://lore.kernel.org/r/f31dbb22-0add-481c-aee0-e337a7731f8e@oracle.com/ Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20251011001047.51886-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.