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Current work on NVME in-band authentication support ([1]) needs to invoke DH with the FFDHE safe-prime group parameters specified in RFC 7919. Introduce a new CRYPTO_DH_RFC7919_GROUPS Kconfig option. If enabled, make dh_generic register a couple of ffdheXYZ(dh) templates, one for each group: ffdhe2048(dh), ffdhe3072(dh), ffdhe4096(dh), ffdhe6144(dh) and ffdhe8192(dh). Their respective ->set_secret() expects a (serialized) struct dh, just like the underlying "dh" implementation does, but with the P and G values unset so that the safe-prime constants for the given group can be filled in by the wrapping template. Internally, a struct dh_safe_prime instance is being defined for each of the ffdheXYZ(dh) templates as appropriate. In order to prepare for future key generation, fill in the maximum security strength values as specified by SP800-56Arev3 on the go, even though they're not needed at this point yet. Implement the respective ffdheXYZ(dh) crypto_template's ->create() by simply forwarding any calls to the __dh_safe_prime_create() helper introduced with the previous commit, passing the associated dh_safe_prime in addition to the received ->create() arguments. [1] https://lore.kernel.org/r/20211202152358.60116-1-hare@suse.de Signed-off-by: Nicolai Stange <nstange@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
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| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
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| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
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| 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 Restructured Text 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.