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Diffstat (limited to 'Documentation/admin-guide/sysctl/crypto.rst')
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diff --git a/Documentation/admin-guide/sysctl/crypto.rst b/Documentation/admin-guide/sysctl/crypto.rst new file mode 100644 index 000000000..b707bd314 --- /dev/null +++ b/Documentation/admin-guide/sysctl/crypto.rst @@ -0,0 +1,47 @@ +================= +/proc/sys/crypto/ +================= + +These files show up in ``/proc/sys/crypto/``, depending on the +kernel configuration: + +.. contents:: :local: + +fips_enabled +============ + +Read-only flag that indicates whether FIPS mode is enabled. + +- ``0``: FIPS mode is disabled (default). +- ``1``: FIPS mode is enabled. + +This value is set at boot time via the ``fips=1`` kernel command line +parameter. When enabled, the cryptographic API will restrict the use +of certain algorithms and perform self-tests to ensure compliance with +FIPS (Federal Information Processing Standards) requirements, such as +FIPS 140-2 and the newer FIPS 140-3, depending on the kernel +configuration and the module in use. + +fips_name +========= + +Read-only file that contains the name of the FIPS module currently in use. +The value is typically configured via the ``CONFIG_CRYPTO_FIPS_NAME`` +kernel configuration option. + +fips_version +============ + +Read-only file that contains the version string of the FIPS module. +If ``CONFIG_CRYPTO_FIPS_CUSTOM_VERSION`` is set, it uses the value from +``CONFIG_CRYPTO_FIPS_VERSION``. Otherwise, it defaults to the kernel +release version (``UTS_RELEASE``). + +Copyright (c) 2026, Shubham Chakraborty <chakrabortyshubham66@gmail.com> + +For general info and legal blurb, please look in +Documentation/admin-guide/sysctl/index.rst. + +.. See scripts/check-sysctl-docs to keep this up to date: +.. scripts/check-sysctl-docs -vtable="crypto" \ +.. $(git grep -l register_sysctl_) |