{
    "mode": "man",
    "parameter": "OSSL_PROVIDER-FIPS",
    "section": "7SSL",
    "url": "https://www.chedong.com/phpMan.php/man/OSSL_PROVIDER-FIPS/7SSL/json",
    "generated": "2026-10-04T14:19:03Z",
    "sections": {
        "NAME": {
            "content": "OSSLPROVIDER-FIPS - OpenSSL FIPS provider\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "The OpenSSL FIPS provider is a special provider that conforms to the Federal Information\nProcessing Standards (FIPS) specified in FIPS 140-2. This 'module' contains an approved set\nof cryptographic algorithms that is validated by an accredited testing laboratory.\n",
            "subsections": [
                {
                    "name": "Properties",
                    "content": "The implementations in this provider specifically have these properties defined:\n\n\"provider=fips\"\n\"fips=yes\"\n\nIt  may be used in a property query string with fetching functions such as EVPMDfetch(3) or\nEVPCIPHERfetch(3), as well as with other functions that take a property query string,  such\nas EVPPKEYCTXnewfromname(3).\n\nIt  isn't  mandatory  to  query  for  any  of  these  properties,  except to make sure to get\nimplementations of this provider and none other.\n\nThe \"fips=yes\" property can be use to make sure only FIPS approved implementations  are  used\nfor  crypto  operations.   This may also include other non-crypto support operations that are\nnot in the FIPS provider, such as asymmetric key encoders, see \"Asymmetric Key Management\" in\nOSSLPROVIDER-default(7).\n"
                }
            ]
        },
        "OPERATIONS AND ALGORITHMS": {
            "content": "The OpenSSL FIPS provider supports these operations and algorithms:\n",
            "subsections": [
                {
                    "name": "Hashing Algorithms / Message Digests",
                    "content": "SHA1, see EVPMD-SHA1(7)\nSHA2, see EVPMD-SHA2(7)\nSHA3, see EVPMD-SHA3(7)\nKECCAK-KMAC, see EVPMD-KECCAK-KMAC(7)\n"
                },
                {
                    "name": "Symmetric Ciphers",
                    "content": "AES, see EVPCIPHER-AES(7)\nDES-EDE3 (TripleDES), see EVPCIPHER-DES(7)\n"
                },
                {
                    "name": "Message Authentication Code (MAC)",
                    "content": "CMAC, see EVPMAC-CMAC(7)\nGMAC, see EVPMAC-GMAC(7)\nHMAC, see EVPMAC-HMAC(7)\nKMAC, see EVPMAC-KMAC(7)\n"
                },
                {
                    "name": "Key Derivation Function (KDF)",
                    "content": "HKDF, see EVPKDF-HKDF(7)\nTLS13-KDF, see EVPKDF-TLS13KDF(7)\nSSKDF, see EVPKDF-SS(7)\nPBKDF2, see EVPKDF-PBKDF2(7)\nSSHKDF, see EVPKDF-SSHKDF(7)\nTLS1-PRF, see EVPKDF-TLS1PRF(7)\nKBKDF, see EVPKDF-KB(7)\nX942KDF-ASN1, see EVPKDF-X942-ASN1(7)\nX942KDF-CONCAT, see EVPKDF-X942-CONCAT(7)\nX963KDF, see EVPKDF-X963(7)\n"
                },
                {
                    "name": "Key Exchange",
                    "content": "DH, see EVPKEYEXCH-DH(7)\nECDH, see EVPKEYEXCH-ECDH(7)\nX25519, see EVPKEYEXCH-X25519(7)\nX448, see EVPKEYEXCH-X448(7)\n"
                },
                {
                    "name": "Asymmetric Signature",
                    "content": "RSA, see EVPSIGNATURE-RSA(7)\nX25519, see EVPSIGNATURE-ED25519(7)\nX448, see EVPSIGNATURE-ED448(7)\nHMAC, see EVPSIGNATURE-HMAC(7)\nCMAC, see EVPSIGNATURE-CMAC(7)\n"
                },
                {
                    "name": "Asymmetric Cipher",
                    "content": "RSA, see EVPASYMCIPHER-RSA(7)\n"
                },
                {
                    "name": "Asymmetric Key Encapsulation",
                    "content": "RSA, see EVPKEM-RSA(7)\n"
                },
                {
                    "name": "Asymmetric Key Management",
                    "content": "DH, see EVPKEYMGMT-DH(7)\nDHX, see EVPKEYMGMT-DHX(7)\nDSA, see EVPKEYMGMT-DSA(7)\nRSA, see EVPKEYMGMT-RSA(7)\nEC, see EVPKEYMGMT-EC(7)\nX25519, see EVPKEYMGMT-X25519(7)\nX448, see EVPKEYMGMT-X448(7)\n"
                },
                {
                    "name": "Random Number Generation",
                    "content": "CTR-DRBG, see EVPRAND-CTR-DRBG(7)\nHASH-DRBG, see EVPRAND-HASH-DRBG(7)\nHMAC-DRBG, see EVPRAND-HMAC-DRBG(7)\nTEST-RAND, see EVPRAND-TEST-RAND(7)\nTEST-RAND is an unapproved algorithm.\n"
                }
            ]
        },
        "SELF TESTING": {
            "content": "One of the requirements for the FIPS module is self testing. An optional  callback  mechanism\nis available to return information to the user using OSSLSELFTESTsetcallback(3).\n\nThe parameters passed to the callback are described in OSSLSELFTESTnew(3)\n\nThe  OpenSSL  FIPS  module uses the following mechanism to provide information about the self\ntests as they run.  This is useful for debugging if a self test  is  failing.   The  callback\nalso  allows  forcing  any self test to fail, in order to check that it operates correctly on\nfailure.  Note that all self tests run even if a self test failure occurs.\n\nThe FIPS module passes the following type(s) to OSSLSELFTESTonbegin().\n\n\"ModuleIntegrity\" (OSSLSELFTESTTYPEMODULEINTEGRITY)\nUses HMAC SHA256 on the module file to validate that the module has  not  been  modified.\nThe  integrity  value  is  compared  to  a  value  written to a configuration file during\ninstallation.\n\n\"InstallIntegrity\" (OSSLSELFTESTTYPEINSTALLINTEGRITY)\nUses HMAC SHA256 on a fixed string to validate that the installation process has  already\nbeen  performed  and  the self test KATS have already been tested, The integrity value is\ncompared to a value written to a configuration file after successfully running  the  self\ntests during installation.\n\n\"KATCipher\" (OSSLSELFTESTTYPEKATCIPHER)\nKnown answer test for a symmetric cipher.\n\n\"KATAsymmetricCipher\" (OSSLSELFTESTTYPEKATASYMCIPHER)\nKnown answer test for a asymmetric cipher.\n\n\"KATDigest\" (OSSLSELFTESTTYPEKATDIGEST)\nKnown answer test for a digest.\n\n\"KATSignature\" (OSSLSELFTESTTYPEKATSIGNATURE)\nKnown answer test for a signature.\n\n\"PCTSignature\" (OSSLSELFTESTTYPEPCTSIGNATURE)\nPairwise Consistency check for a signature.\n\n\"KATKDF\" (OSSLSELFTESTTYPEKATKDF)\nKnown answer test for a key derivation function.\n\n\"KATKA\" (OSSLSELFTESTTYPEKATKA)\nKnown answer test for key agreement.\n\n\"DRBG\" (OSSLSELFTESTTYPEDRBG)\nKnown answer test for a Deterministic Random Bit Generator.\n\n\"ConditionalPCT\" (OSSLSELFTESTTYPEPCT)\nConditional test that is run during the generation of key pairs.\n\n\"ContinuousRNGTest\" (OSSLSELFTESTTYPECRNG)\nContinuous random number generator test.\n\nThe \"ModuleIntegrity\" self test is always run at startup.  The \"InstallIntegrity\" self test\nis  used  to check if the self tests have already been run at installation time. If they have\nalready run then the self tests are not run on subsequent  startups.   All  other  self  test\ncategories are run once at installation time, except for the \"PairwiseConsistencyTest\".\n\nThere  is only one instance of the \"ModuleIntegrity\" and \"InstallIntegrity\" self tests. All\nother self tests may have multiple instances.\n\nThe FIPS module passes the following descriptions(s) to OSSLSELFTESTonbegin().\n\n\"HMAC\" (OSSLSELFTESTDESCINTEGRITYHMAC)\n\"ModuleIntegrity\" and \"InstallIntegrity\" use this.\n\n\"RSA\" (OSSLSELFTESTDESCPCTRSAPKCS1)\n\"ECDSA\" (OSSLSELFTESTDESCPCTECDSA)\n\"DSA\" (OSSLSELFTESTDESCPCTDSA)\nKey generation tests used with the \"PairwiseConsistencyTest\" type.\n\n\"RSAEncrypt\" (OSSLSELFTESTDESCASYMRSAENC)\n\"RSADecrypt\" (OSSLSELFTESTDESCASYMRSADEC)\n\"KATAsymmetricCipher\" uses this to indicate an encrypt or decrypt KAT.\n\n\"AESGCM\" (OSSLSELFTESTDESCCIPHERAESGCM)\n\"AESECBDecrypt\" (OSSLSELFTESTDESCCIPHERAESECB)\n\"TDES\" (OSSLSELFTESTDESCCIPHERTDES)\nSymmetric cipher tests used with the \"KATCipher\" type.\n\n\"SHA1\" (OSSLSELFTESTDESCMDSHA1)\n\"SHA2\" (OSSLSELFTESTDESCMDSHA2)\n\"SHA3\" (OSSLSELFTESTDESCMDSHA3)\nDigest tests used with the \"KATDigest\" type.\n\n\"DSA\" (OSSLSELFTESTDESCSIGNDSA)\n\"RSA\" (OSSLSELFTESTDESCSIGNRSA)\n\"ECDSA\" (OSSLSELFTESTDESCSIGNECDSA)\nSignature tests used with the \"KATSignature\" type.\n\n\"ECDH\" (OSSLSELFTESTDESCKAECDH)\n\"DH\" (OSSLSELFTESTDESCKADH)\nKey agreement tests used with the \"KATKA\" type.\n\n\"HKDF\" (OSSLSELFTESTDESCKDFHKDF)\n\"TLS13KDFEXTRACT\" (OSSLSELFTESTDESCKDFTLS13EXTRACT)\n\"TLS13KDFEXPAND\" (OSSLSELFTESTDESCKDFTLS13EXPAND)\n\"SSKDF\" (OSSLSELFTESTDESCKDFSSKDF)\n\"X963KDF\" (OSSLSELFTESTDESCKDFX963KDF)\n\"X942KDF\" (OSSLSELFTESTDESCKDFX942KDF)\n\"PBKDF2\" (OSSLSELFTESTDESCKDFPBKDF2)\n\"SSHKDF\" (OSSLSELFTESTDESCKDFSSHKDF)\n\"TLS12PRF\" (OSSLSELFTESTDESCKDFTLS12PRF)\n\"KBKDF\" (OSSLSELFTESTDESCKDFKBKDF)\nKey Derivation Function tests used with the \"KATKDF\" type.\n\n\"CTR\" (OSSLSELFTESTDESCDRBGCTR)\n\"HASH\" (OSSLSELFTESTDESCDRBGHASH)\n\"HMAC\" (OSSLSELFTESTDESCDRBGHMAC)\nDRBG tests used with the \"DRBG\" type.\n\n= item \"RNG\" (OSSLSELFTESTDESCRNG)\n\n\"ContinuousRNGTest\" uses this.\n",
            "subsections": []
        },
        "EXAMPLES": {
            "content": "A simple self test callback is shown below for illustrative purposes.\n\n#include <openssl/selftest.h>\n\nstatic OSSLCALLBACK selftestcb;\n\nstatic int selftestcb(const OSSLPARAM params[], void *arg)\n{\nint ret = 0;\nconst OSSLPARAM *p = NULL;\nconst char *phase = NULL, *type = NULL, *desc = NULL;\n\np = OSSLPARAMlocateconst(params, OSSLPROVPARAMSELFTESTPHASE);\nif (p == NULL || p->datatype != OSSLPARAMUTF8STRING)\ngoto err;\nphase = (const char *)p->data;\n\np = OSSLPARAMlocateconst(params, OSSLPROVPARAMSELFTESTDESC);\nif (p == NULL || p->datatype != OSSLPARAMUTF8STRING)\ngoto err;\ndesc = (const char *)p->data;\n\np = OSSLPARAMlocateconst(params, OSSLPROVPARAMSELFTESTTYPE);\nif (p == NULL || p->datatype != OSSLPARAMUTF8STRING)\ngoto err;\ntype = (const char *)p->data;\n\n/* Do some logging */\nif (strcmp(phase, OSSLSELFTESTPHASESTART) == 0)\nBIOprintf(bioout, \"%s : (%s) : \", desc, type);\nif (strcmp(phase, OSSLSELFTESTPHASEPASS) == 0\n|| strcmp(phase, OSSLSELFTESTPHASEFAIL) == 0)\nBIOprintf(bioout, \"%s\\n\", phase);\n\n/* Corrupt the SHA1 self test during the 'corrupt' phase by returning 0 */\nif (strcmp(phase, OSSLSELFTESTPHASECORRUPT) == 0\n&& strcmp(desc, OSSLSELFTESTDESCMDSHA1) == 0) {\nBIOprintf(bioout, \"%s %s\", phase, desc);\nreturn 0;\n}\nret = 1;\nerr:\nreturn ret;\n}\n",
            "subsections": []
        },
        "NOTES": {
            "content": "Some released versions of OpenSSL do not include a validated  FIPS  provider.   To  determine\nwhich  versions  have undergone the validation process, please refer to the OpenSSL Downloads\npage <https://www.openssl.org/source/>.  If you require FIPS-approved  functionality,  it  is\nessential  to  build  your  FIPS  provider  using one of the validated versions listed there.\nNormally, it is possible to utilize a FIPS provider constructed from  one  of  the  validated\nversions  alongside  libcrypto  and  libssl  compiled  from any release within the same major\nrelease series.  This flexibility enables you to address bug fixes and CVEs that fall outside\nthe FIPS boundary.\n",
            "subsections": []
        },
        "SEE ALSO": {
            "content": "openssl-fipsinstall(1),            fipsconfig(5),            OSSLSELFTESTsetcallback(3),\nOSSLSELFTESTnew(3),    OSSLPARAM(3),    openssl-core.h(7),    openssl-coredispatch.h(7),\nprovider(7), <https://www.openssl.org/source/>\n",
            "subsections": []
        },
        "HISTORY": {
            "content": "This functionality was added in OpenSSL 3.0.\n",
            "subsections": []
        },
        "COPYRIGHT": {
            "content": "Copyright 2019-2023 The OpenSSL Project Authors. All Rights Reserved.\n\nLicensed under the Apache License 2.0 (the \"License\").  You may not use this file  except  in\ncompliance  with  the  License.   You  can  obtain  a  copy in the file LICENSE in the source\ndistribution or at <https://www.openssl.org/source/license.html>.\n\n3.0.13                                       2026-07-29                     OSSLPROVIDER-FIPS(7SSL)",
            "subsections": []
        }
    },
    "summary": "OSSLPROVIDER-FIPS - OpenSSL FIPS provider",
    "flags": [],
    "examples": [
        "A simple self test callback is shown below for illustrative purposes.",
        "#include <openssl/selftest.h>",
        "static OSSLCALLBACK selftestcb;",
        "static int selftestcb(const OSSLPARAM params[], void *arg)",
        "int ret = 0;",
        "const OSSLPARAM *p = NULL;",
        "const char *phase = NULL, *type = NULL, *desc = NULL;",
        "p = OSSLPARAMlocateconst(params, OSSLPROVPARAMSELFTESTPHASE);",
        "if (p == NULL || p->datatype != OSSLPARAMUTF8STRING)",
        "goto err;",
        "phase = (const char *)p->data;",
        "p = OSSLPARAMlocateconst(params, OSSLPROVPARAMSELFTESTDESC);",
        "if (p == NULL || p->datatype != OSSLPARAMUTF8STRING)",
        "goto err;",
        "desc = (const char *)p->data;",
        "p = OSSLPARAMlocateconst(params, OSSLPROVPARAMSELFTESTTYPE);",
        "if (p == NULL || p->datatype != OSSLPARAMUTF8STRING)",
        "goto err;",
        "type = (const char *)p->data;",
        "/* Do some logging */",
        "if (strcmp(phase, OSSLSELFTESTPHASESTART) == 0)",
        "BIOprintf(bioout, \"%s : (%s) : \", desc, type);",
        "if (strcmp(phase, OSSLSELFTESTPHASEPASS) == 0",
        "|| strcmp(phase, OSSLSELFTESTPHASEFAIL) == 0)",
        "BIOprintf(bioout, \"%s\\n\", phase);",
        "/* Corrupt the SHA1 self test during the 'corrupt' phase by returning 0 */",
        "if (strcmp(phase, OSSLSELFTESTPHASECORRUPT) == 0",
        "&& strcmp(desc, OSSLSELFTESTDESCMDSHA1) == 0) {",
        "BIOprintf(bioout, \"%s %s\", phase, desc);",
        "return 0;",
        "ret = 1;",
        "err:",
        "return ret;"
    ],
    "see_also": [
        {
            "name": "openssl-fipsinstall",
            "section": "1",
            "url": "https://www.chedong.com/phpMan.php/man/openssl-fipsinstall/1/json"
        },
        {
            "name": "fipsconfig",
            "section": "5",
            "url": "https://www.chedong.com/phpMan.php/man/fipsconfig/5/json"
        },
        {
            "name": "OSSLSELFTESTsetcallback",
            "section": "3",
            "url": "https://www.chedong.com/phpMan.php/man/OSSLSELFTESTsetcallback/3/json"
        },
        {
            "name": "OSSLSELFTESTnew",
            "section": "3",
            "url": "https://www.chedong.com/phpMan.php/man/OSSLSELFTESTnew/3/json"
        },
        {
            "name": "OSSLPARAM",
            "section": "3",
            "url": "https://www.chedong.com/phpMan.php/man/OSSLPARAM/3/json"
        },
        {
            "name": "openssl-core.h",
            "section": "7",
            "url": "https://www.chedong.com/phpMan.php/man/openssl-core.h/7/json"
        },
        {
            "name": "openssl-coredispatch.h",
            "section": "7",
            "url": "https://www.chedong.com/phpMan.php/man/openssl-coredispatch.h/7/json"
        },
        {
            "name": "provider",
            "section": "7",
            "url": "https://www.chedong.com/phpMan.php/man/provider/7/json"
        }
    ]
}