=pod

=head1 NAME

fips_config - OpenSSL FIPS configuration

=head1 DESCRIPTION

A separate configuration file, using the OpenSSL L<config(5)> syntax,
is used to hold information about the FIPS module. This includes a digest
of the shared library file, and status about the self-testing.
This data is used automatically by the module itself for two
purposes:

=over 4

=item - Run the startup FIPS self-test known answer tests (KATS).

This is normally done once, at installation time, but may also be set up to
run each time the module is used.

=item - Verify the module's checksum.

This is done each time the module is used.

=back

This file is generated by the L<openssl-fipsinstall(1)> program, and
used internally by the FIPS module during its initialization.

The following options are supported. They should all appear in a section
whose name is identified by the B<fips> option in the B<providers>
section, as described in L<config(5)/Provider Configuration Module>.

=over 4

=item B<activate>

If present, the module is activated. The value assigned to this name is not
significant.

=item B<conditional-errors>

The FIPS module normally enters an internal error mode if any self test fails.
Once this error mode is active, no services or cryptographic algorithms are
accessible from this point on.
Continuous tests are a subset of the self tests (e.g., a key pair test during key
generation, or the CRNG output test).
Setting this value to C<0> allows the error mode to not be triggered if any
continuous test fails. The default value of C<1> will trigger the error mode.
Regardless of the value, the operation (e.g., key generation) that called the
continuous test will return an error code if its continuous test fails. The
operation may then be retried if the error mode has not been triggered.

=item B<defer-tests>

If set to C<1>, the module will not run the self tests during initialization.
Instead, the self tests will be run on demand when a particular algorithm is
used.
The default value of C<0> runs the self tests during initialization.

=item B<module-mac>

The calculated MAC of the FIPS provider file.

=item B<install-version>

A version number for the fips install process. Should be 1.

=item B<install-status>

This field is deprecated and is no longer used.

=item B<install-mac>

This field is deprecated and is no longer used.

=back

=head2 FIPS indicator options

The following FIPS configuration options indicate if run-time checks related to
enforcement of FIPS security parameters such as minimum security strength of
keys and approved curve names are used.
A value of '1' will perform the checks, otherwise if the value is '0' the checks
are not performed and FIPS compliance must be done by procedures documented in
the relevant Security Policy.

See L<openssl-fipsinstall(1)/OPTIONS> for further information related to these
options.

=over 4

=item B<security-checks>

See L<openssl-fipsinstall(1)/OPTIONS> B<-no_security_checks>

=item B<tls1-prf-ems-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-ems_check>

=item B<no-short-mac>

See L<openssl-fipsinstall(1)/OPTIONS> B<-no_short_mac>

=item B<drbg-no-trunc-md>

See L<openssl-fipsinstall(1)/OPTIONS> B<-no_drbg_truncated_digests>

=item B<signature-digest-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-signature_digest_check>

=item B<hkdf-digest-check>

This option is deprecated.

=item B<tls13-kdf-digest-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-tls13_kdf_digest_check>

=item B<tls1-prf-digest-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-tls1_prf_digest_check>

=item B<sshkdf-digest-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-sshkdf_digest_check>

=item B<sskdf-digest-check>

This option is deprecated.

=item B<x963kdf-digest-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-x963kdf_digest_check>

=item B<dsa-sign-disabled>

See L<openssl-fipsinstall(1)/OPTIONS> B<-dsa_sign_disabled>

=item B<tdes-encrypt-disabled>

See L<openssl-fipsinstall(1)/OPTIONS> B<-tdes_encrypt_disabled>

=item B<rsa-pkcs15-pad-disabled>

See L<openssl-fipsinstall(1)/OPTIONS> B<-rsa_pkcs15_pad_disabled>

=item B<rsa-pss-saltlen-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-rsa_pss_saltlen_check>

=item B<rsa-sign-x931-pad-disabled>

See L<openssl-fipsinstall(1)/OPTIONS> B<-rsa_sign_x931_disabled>

=item B<hkdf-key-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-hkdf_key_check>

=item B<kbkdf-key-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-kbkdf_key_check>

=item B<tls13-kdf-key-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-tls13_kdf_key_check>

=item B<tls1-prf-key-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-tls1_prf_key_check>

=item B<sshkdf-key-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-sshkdf_key_check>

=item B<sskdf-key-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-sskdf_key_check>

=item B<x963kdf-key-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-x963kdf_key_check>

=item B<x942kdf-key-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-x942kdf_key_check>

=item B<pbkdf2-lower-bound-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-no_pbkdf2_lower_bound_check>

=item B<ecdh-cofactor-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-ecdh_cofactor_check>

=item B<hmac-key-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-hmac_key_check>

=item B<kmac-key-check>

See L<openssl-fipsinstall(1)/OPTIONS> B<-kmac_key_check>

=back

For example:

 [fips_sect]
 activate = 1
 install-version = 1
 conditional-errors = 1
 security-checks = 1
 module-mac = 41:D0:FA:C2:5D:41:75:CD:7D:C3:90:55:6F:A4:DC
 install-mac = FE:10:13:5A:D3:B4:C7:82:1B:1E:17:4C:AC:84:0C
 install-status = INSTALL_SELF_TEST_KATS_RUN

=head1 NOTES

When using the FIPS provider, it is recommended that the
B<config_diagnostics> option is enabled to prevent accidental use of
non-FIPS validated algorithms via broken or mistaken configuration.
See L<config(5)>.

=head1 SEE ALSO

L<config(5)>
L<openssl-fipsinstall(1)>

=head1 HISTORY

This functionality was added in OpenSSL 3.0.

=head1 COPYRIGHT

Copyright 2019-2026 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.

=cut
