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dockerfile/examples/openssl/openssl-3.2.1-src/doc/man7/OSSL_PROVIDER-FIPS.pod

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=pod
=head1 NAME
OSSL_PROVIDER-FIPS - OpenSSL FIPS provider
=head1 DESCRIPTION
The OpenSSL FIPS provider is a special provider that conforms to the Federal
Information Processing Standards (FIPS) specified in FIPS 140-3. This 'module'
contains an approved set of cryptographic algorithms that is validated by an
accredited testing laboratory.
=head2 Properties
The implementations in this provider specifically have these properties
defined:
=over 4
=item "provider=fips"
=item "fips=yes"
=back
It may be used in a property query string with fetching functions such as
L<EVP_MD_fetch(3)> or L<EVP_CIPHER_fetch(3)>, as well as with other
functions that take a property query string, such as
L<EVP_PKEY_CTX_new_from_name(3)>.
To be FIPS compliant, it is mandatory to include C<fips=yes> as
part of all property queries. This ensures that only FIPS approved
implementations are used for cryptographic operations. The C<fips=yes>
query may also include other non-crypto support operations that
are not in the FIPS provider, such as asymmetric key encoders, see
L<OSSL_PROVIDER-default(7)/Asymmetric Key Management>.
It is not mandatory to include C<provider=fips> as part of your property
query. Including C<provider=fips> in your property query guarantees
that the OpenSSL FIPS provider is used for cryptographic operations
rather than other FIPS capable providers.
=head2 Provider parameters
See L<provider-base(7)/Provider parameters> for a list of base parameters.
Additionally the OpenSSL FIPS provider also supports the following gettable
parameters:
=over 4
=item "security-checks" (B<OSSL_OSSL_PROV_PARAM_SECURITY_CHECKS>) <unsigned integer>
For further information refer to the L<openssl-fipsinstall(1)> option
B<-no_security_checks>.
=back
=head1 OPERATIONS AND ALGORITHMS
The OpenSSL FIPS provider supports these operations and algorithms:
=head2 Hashing Algorithms / Message Digests
=over 4
=item SHA1, see L<EVP_MD-SHA1(7)>
=item SHA2, see L<EVP_MD-SHA2(7)>
=item SHA3, see L<EVP_MD-SHA3(7)>
=item KECCAK-KMAC, see L<EVP_MD-KECCAK-KMAC(7)>
=item SHAKE, see L<EVP_MD-SHAKE(7)>
=back
=head2 Symmetric Ciphers
=over 4
=item AES, see L<EVP_CIPHER-AES(7)>
=item 3DES, see L<EVP_CIPHER-DES(7)>
This is an unapproved algorithm.
=back
=head2 Message Authentication Code (MAC)
=over 4
=item CMAC, see L<EVP_MAC-CMAC(7)>
=item GMAC, see L<EVP_MAC-GMAC(7)>
=item HMAC, see L<EVP_MAC-HMAC(7)>
=item KMAC, see L<EVP_MAC-KMAC(7)>
=back
=head2 Key Derivation Function (KDF)
=over 4
=item HKDF, see L<EVP_KDF-HKDF(7)>
=item TLS13-KDF, see L<EVP_KDF-TLS13_KDF(7)>
=item SSKDF, see L<EVP_KDF-SS(7)>
=item PBKDF2, see L<EVP_KDF-PBKDF2(7)>
=item SSHKDF, see L<EVP_KDF-SSHKDF(7)>
=item TLS1-PRF, see L<EVP_KDF-TLS1_PRF(7)>
=item KBKDF, see L<EVP_KDF-KB(7)>
=item X942KDF-ASN1, see L<EVP_KDF-X942-ASN1(7)>
=item X942KDF-CONCAT, see L<EVP_KDF-X942-CONCAT(7)>
=item X963KDF, see L<EVP_KDF-X963(7)>
=back
=head2 Key Exchange
=over 4
=item DH, see L<EVP_KEYEXCH-DH(7)>
=item ECDH, see L<EVP_KEYEXCH-ECDH(7)>
=item X25519, see L<EVP_KEYEXCH-X25519(7)>
=item X448, see L<EVP_KEYEXCH-X448(7)>
=item TLS1-PRF
=item HKDF
=back
=head2 Asymmetric Signature
=over 4
=item RSA, see L<EVP_SIGNATURE-RSA(7)>
=item DSA, see L<EVP_SIGNATURE-DSA(7)>
=item ED25519, see L<EVP_SIGNATURE-ED25519(7)>
This is an unapproved algorithm.
=item ED448, see L<EVP_SIGNATURE-ED448(7)>
This is an unapproved algorithm.
=item ECDSA, see L<EVP_SIGNATURE-ECDSA(7)>
=item HMAC, see L<EVP_SIGNATURE-HMAC(7)>
=item CMAC, see L<EVP_SIGNATURE-CMAC(7)>
=back
=head2 Asymmetric Cipher
=over 4
=item RSA, see L<EVP_ASYM_CIPHER-RSA(7)>
=back
=head2 Asymmetric Key Encapsulation
=over 4
=item RSA, see L<EVP_KEM-RSA(7)>
=back
=head2 Asymmetric Key Management
=over 4
=item DH, see L<EVP_KEYMGMT-DH(7)>
=item DHX, see L<EVP_KEYMGMT-DHX(7)>
=item DSA, see L<EVP_KEYMGMT-DSA(7)>
=item RSA, see L<EVP_KEYMGMT-RSA(7)>
=item RSA-PSS
=item EC, see L<EVP_KEYMGMT-EC(7)>
=item X25519, see L<EVP_KEYMGMT-X25519(7)>
=item X448, see L<EVP_KEYMGMT-X448(7)>
=item ED25519, see L<EVP_KEYMGMT-ED25519(7)>
This is an unapproved algorithm.
=item ED448, see L<EVP_KEYMGMT-ED448(7)>
This is an unapproved algorithm.
=item TLS1-PRF
=item HKDF
=item HMAC, see L<EVP_KEYMGMT-HMAC(7)>
=item CMAC, see L<EVP_KEYMGMT-CMAC(7)>
=back
=head2 Random Number Generation
=over 4
=item CTR-DRBG, see L<EVP_RAND-CTR-DRBG(7)>
=item HASH-DRBG, see L<EVP_RAND-HASH-DRBG(7)>
=item HMAC-DRBG, see L<EVP_RAND-HMAC-DRBG(7)>
=item TEST-RAND, see L<EVP_RAND-TEST-RAND(7)>
TEST-RAND is an unapproved algorithm.
=back
=head1 SELF TESTING
One of the requirements for the FIPS module is self testing. An optional callback
mechanism is available to return information to the user using
L<OSSL_SELF_TEST_set_callback(3)>.
The parameters passed to the callback are described in L<OSSL_SELF_TEST_new(3)>
The OpenSSL FIPS module uses the following mechanism to provide information
about the self tests as they run.
This is useful for debugging if a self test is failing.
The callback also allows forcing any self test to fail, in order to check that
it operates correctly on failure.
Note that all self tests run even if a self test failure occurs.
The FIPS module passes the following type(s) to OSSL_SELF_TEST_onbegin().
=over 4
=item "Module_Integrity" (B<OSSL_SELF_TEST_TYPE_MODULE_INTEGRITY>)
Uses HMAC SHA256 on the module file to validate that the module has not been
modified. The integrity value is compared to a value written to a configuration
file during installation.
=item "Install_Integrity" (B<OSSL_SELF_TEST_TYPE_INSTALL_INTEGRITY>)
Uses HMAC SHA256 on a fixed string to validate that the installation process
has already been performed and the self test KATS have already been tested,
The integrity value is compared to a value written to a configuration
file after successfully running the self tests during installation.
=item "KAT_Cipher" (B<OSSL_SELF_TEST_TYPE_KAT_CIPHER>)
Known answer test for a symmetric cipher.
=item "KAT_AsymmetricCipher" (B<OSSL_SELF_TEST_TYPE_KAT_ASYM_CIPHER>)
Known answer test for a asymmetric cipher.
=item "KAT_Digest" (B<OSSL_SELF_TEST_TYPE_KAT_DIGEST>)
Known answer test for a digest.
=item "KAT_Signature" (B<OSSL_SELF_TEST_TYPE_KAT_SIGNATURE>)
Known answer test for a signature.
=item "PCT_Signature" (B<OSSL_SELF_TEST_TYPE_PCT_SIGNATURE>)
Pairwise Consistency check for a signature.
=item "KAT_KDF" (B<OSSL_SELF_TEST_TYPE_KAT_KDF>)
Known answer test for a key derivation function.
=item "KAT_KA" (B<OSSL_SELF_TEST_TYPE_KAT_KA>)
Known answer test for key agreement.
=item "DRBG" (B<OSSL_SELF_TEST_TYPE_DRBG>)
Known answer test for a Deterministic Random Bit Generator.
=item "Conditional_PCT" (B<OSSL_SELF_TEST_TYPE_PCT>)
Conditional test that is run during the generation of key pairs.
=item "Continuous_RNG_Test" (B<OSSL_SELF_TEST_TYPE_CRNG>)
Continuous random number generator test.
=back
The "Module_Integrity" self test is always run at startup.
The "Install_Integrity" self test is used to check if the self tests have
already been run at installation time. If they have already run then the
self tests are not run on subsequent startups.
All other self test categories are run once at installation time, except for the
"Pairwise_Consistency_Test".
There is only one instance of the "Module_Integrity" and "Install_Integrity"
self tests. All other self tests may have multiple instances.
The FIPS module passes the following descriptions(s) to OSSL_SELF_TEST_onbegin().
=over 4
=item "HMAC" (B<OSSL_SELF_TEST_DESC_INTEGRITY_HMAC>)
"Module_Integrity" and "Install_Integrity" use this.
=item "RSA" (B<OSSL_SELF_TEST_DESC_PCT_RSA_PKCS1>)
=item "ECDSA" (B<OSSL_SELF_TEST_DESC_PCT_ECDSA>)
=item "DSA" (B<OSSL_SELF_TEST_DESC_PCT_DSA>)
Key generation tests used with the "Pairwise_Consistency_Test" type.
=item "RSA_Encrypt" (B<OSSL_SELF_TEST_DESC_ASYM_RSA_ENC>)
=item "RSA_Decrypt" (B<OSSL_SELF_TEST_DESC_ASYM_RSA_DEC>)
"KAT_AsymmetricCipher" uses this to indicate an encrypt or decrypt KAT.
=item "AES_GCM" (B<OSSL_SELF_TEST_DESC_CIPHER_AES_GCM>)
=item "AES_ECB_Decrypt" (B<OSSL_SELF_TEST_DESC_CIPHER_AES_ECB>)
=item "TDES" (B<OSSL_SELF_TEST_DESC_CIPHER_TDES>)
Symmetric cipher tests used with the "KAT_Cipher" type.
=item "SHA1" (B<OSSL_SELF_TEST_DESC_MD_SHA1>)
=item "SHA2" (B<OSSL_SELF_TEST_DESC_MD_SHA2>)
=item "SHA3" (B<OSSL_SELF_TEST_DESC_MD_SHA3>)
Digest tests used with the "KAT_Digest" type.
=item "DSA" (B<OSSL_SELF_TEST_DESC_SIGN_DSA>)
=item "RSA" (B<OSSL_SELF_TEST_DESC_SIGN_RSA>)
=item "ECDSA" (B<OSSL_SELF_TEST_DESC_SIGN_ECDSA>)
Signature tests used with the "KAT_Signature" type.
=item "ECDH" (B<OSSL_SELF_TEST_DESC_KA_ECDH>)
=item "DH" (B<OSSL_SELF_TEST_DESC_KA_DH>)
Key agreement tests used with the "KAT_KA" type.
=item "HKDF" (B<OSSL_SELF_TEST_DESC_KDF_HKDF>)
=item "TLS13_KDF_EXTRACT" (B<OSSL_SELF_TEST_DESC_KDF_TLS13_EXTRACT>)
=item "TLS13_KDF_EXPAND" (B<OSSL_SELF_TEST_DESC_KDF_TLS13_EXPAND>)
=item "SSKDF" (B<OSSL_SELF_TEST_DESC_KDF_SSKDF>)
=item "X963KDF" (B<OSSL_SELF_TEST_DESC_KDF_X963KDF>)
=item "X942KDF" (B<OSSL_SELF_TEST_DESC_KDF_X942KDF>)
=item "PBKDF2" (B<OSSL_SELF_TEST_DESC_KDF_PBKDF2>)
=item "SSHKDF" (B<OSSL_SELF_TEST_DESC_KDF_SSHKDF>)
=item "TLS12_PRF" (B<OSSL_SELF_TEST_DESC_KDF_TLS12_PRF>)
=item "KBKDF" (B<OSSL_SELF_TEST_DESC_KDF_KBKDF>)
Key Derivation Function tests used with the "KAT_KDF" type.
=item "CTR" (B<OSSL_SELF_TEST_DESC_DRBG_CTR>)
=item "HASH" (B<OSSL_SELF_TEST_DESC_DRBG_HASH>)
=item "HMAC" (B<OSSL_SELF_TEST_DESC_DRBG_HMAC>)
DRBG tests used with the "DRBG" type.
= item "RNG" (B<OSSL_SELF_TEST_DESC_RNG>)
"Continuous_RNG_Test" uses this.
=back
=head1 EXAMPLES
A simple self test callback is shown below for illustrative purposes.
#include <openssl/self_test.h>
static OSSL_CALLBACK self_test_cb;
static int self_test_cb(const OSSL_PARAM params[], void *arg)
{
int ret = 0;
const OSSL_PARAM *p = NULL;
const char *phase = NULL, *type = NULL, *desc = NULL;
p = OSSL_PARAM_locate_const(params, OSSL_PROV_PARAM_SELF_TEST_PHASE);
if (p == NULL || p->data_type != OSSL_PARAM_UTF8_STRING)
goto err;
phase = (const char *)p->data;
p = OSSL_PARAM_locate_const(params, OSSL_PROV_PARAM_SELF_TEST_DESC);
if (p == NULL || p->data_type != OSSL_PARAM_UTF8_STRING)
goto err;
desc = (const char *)p->data;
p = OSSL_PARAM_locate_const(params, OSSL_PROV_PARAM_SELF_TEST_TYPE);
if (p == NULL || p->data_type != OSSL_PARAM_UTF8_STRING)
goto err;
type = (const char *)p->data;
/* Do some logging */
if (strcmp(phase, OSSL_SELF_TEST_PHASE_START) == 0)
BIO_printf(bio_out, "%s : (%s) : ", desc, type);
if (strcmp(phase, OSSL_SELF_TEST_PHASE_PASS) == 0
|| strcmp(phase, OSSL_SELF_TEST_PHASE_FAIL) == 0)
BIO_printf(bio_out, "%s\n", phase);
/* Corrupt the SHA1 self test during the 'corrupt' phase by returning 0 */
if (strcmp(phase, OSSL_SELF_TEST_PHASE_CORRUPT) == 0
&& strcmp(desc, OSSL_SELF_TEST_DESC_MD_SHA1) == 0) {
BIO_printf(bio_out, "%s %s", phase, desc);
return 0;
}
ret = 1;
err:
return ret;
}
=head1 NOTES
Some released versions of OpenSSL do not include a validated
FIPS provider. To determine which versions have undergone
the validation process, please refer to the
L<OpenSSL Downloads page|https://www.openssl.org/source/>. If you
require FIPS-approved functionality, it is essential to build your FIPS
provider using one of the validated versions listed there. Normally,
it is possible to utilize a FIPS provider constructed from one of the
validated versions alongside F<libcrypto> and F<libssl> compiled from any
release within the same major release series. This flexibility enables
you to address bug fixes and CVEs that fall outside the FIPS boundary.
The FIPS provider in OpenSSL 3.1 includes some non-FIPS validated algorithms,
consequently the property query C<fips=yes> is mandatory for applications that
want to operate in a FIPS approved manner. The algorithms are:
=over 4
=item Triple DES ECB
=item Triple DES CBC
=item EdDSA
=back
=head1 SEE ALSO
L<openssl-fipsinstall(1)>,
L<fips_config(5)>,
L<OSSL_SELF_TEST_set_callback(3)>,
L<OSSL_SELF_TEST_new(3)>,
L<OSSL_PARAM(3)>,
L<openssl-core.h(7)>,
L<openssl-core_dispatch.h(7)>,
L<provider(7)>,
L<https://www.openssl.org/source/>
=head1 HISTORY
This functionality was added in OpenSSL 3.0.
=head1 COPYRIGHT
Copyright 2019-2023 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
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