5 OSSL_PROVIDER-FIPS - OpenSSL FIPS provider
9 The OpenSSL FIPS provider is a special provider that conforms to the Federal
10 Information Processing Standards (FIPS) specified in FIPS 140-2. This 'module'
11 contains an approved set of cryptographic algorithms that is validated by an
12 accredited testing laboratory.
16 The implementations in this provider specifically have these properties
27 It may be used in a property query string with fetching functions such as
28 L<EVP_MD_fetch(3)> or L<EVP_CIPHER_fetch(3)>, as well as with other
29 functions that take a property query string, such as
30 L<EVP_PKEY_CTX_new_from_name(3)>.
32 It isn't mandatory to query for any of these properties, except to
33 make sure to get implementations of this provider and none other.
35 The "fips=yes" property can be use to make sure only FIPS approved
36 implementations are used for crypto operations. This may also include
37 other non-crypto support operations that are not in the fips provider,
38 such as asymmetric key encoders,
39 see L<OSSL_PROVIDER-default(7)/Asymmetric Key Management>.
41 =head1 OPERATIONS AND ALGORITHMS
43 The OpenSSL FIPS provider supports these operations and algorithms:
45 =head2 Hashing Algorithms / Message Digests
49 =item SHA1, see L<EVP_MD-SHA1(7)>
51 =item SHA2, see L<EVP_MD-SHA2(7)>
53 =item SHA3, see L<EVP_MD-SHA3(7)>
55 =item KECCAK-KMAC, see L<EVP_MD-KECCAK-KMAC(7)>
59 =head2 Symmetric Ciphers
63 =item AES, see L<EVP_CIPHER-AES(7)>
65 =item DES-EDE3 (TripleDES), see L<EVP_CIPHER-DES(7)>
69 =head2 Message Authentication Code (MAC)
73 =item CMAC, see L<EVP_MAC-CMAC(7)>
75 =item GMAC, see L<EVP_MAC-GMAC(7)>
77 =item HMAC, see L<EVP_MAC-HMAC(7)>
79 =item KMAC, see L<EVP_MAC-KMAC(7)>
83 =head2 Key Derivation Function (KDF)
87 =item HKDF, see L<EVP_KDF-HKDF(7)>
89 =item SSKDF, see L<EVP_KDF-SSKDF(7)>
91 =item PBKDF2, see L<EVP_KDF-PBKDF2(7)>
93 =item SSHKDF, see L<EVP_KDF-SSHKDF(7)>
95 =item TLS1-PRF, see L<EVP_KDF-TLS1-PRF(7)>
97 =item KBKDF, see L<EVP_KDF-KBKDF(7)>
99 =item X942KDF-ASN1, see L<EVP_KDF-X942-ASN1(7)>
101 =item X942KDF-CONCAT, see L<EVP_KDF-X942-CONCAT(7)>
103 =item X963KDF, see L<EVP_KDF-X963(7)>
111 =item DH, see L<EVP_KEYEXCH-DH(7)>
113 =item ECDH, see L<EVP_KEYEXCH-ECDH(7)>
115 =item X25519, see L<EVP_KEYEXCH-X25519(7)>
117 This has the property "provider=fips,fips=no"
119 =item X448, see L<EVP_KEYEXCH-X448(7)>
121 This has the property "provider=fips,fips=no"
125 =head2 Asymmetric Signature
129 =item DSA, see L<EVP_KEYEXCH-DSA(7)>
131 =item RSA, see L<EVP_SIGNATURE-RSA(7)>
133 =item HMAC, see L<EVP_SIGNATURE-HMAC(7)>
135 =item CMAC, see L<EVP_SIGNATURE-CMAC(7)>
139 =head2 Asymmetric Cipher
143 =item RSA, see L<EVP_KEYEXCH-RSA(7)>
147 =head2 Asymmetric Key Encapsulation
151 =item RSA, see L<EVP_KEM-RSA(7)>
155 =head2 Asymmetric Key Management
159 =item DH, see L<EVP_KEYMGMT-DH(7)>
161 =item DSA, see L<EVP_KEYMGMT-DSA(7)>
163 =item RSA, see L<EVP_KEYMGMT-RSA(7)>
169 One of the requirements for the FIPS module is self testing. An optional callback
170 mechanism is available to return information to the user using
171 L<OSSL_SELF_TEST_set_callback(3)>.
173 The parameters passed to the callback are described in L<OSSL_SELF_TEST_new(3)>
175 The OpenSSL FIPS module uses the following mechanism to provide information
176 about the self tests as they run.
177 This is useful for debugging if a self test is failing.
178 The callback also allows forcing any self test to fail, in order to check that
179 it operates correctly on failure.
180 Note that all self tests run even if a self test failure occurs.
182 The FIPS module passes the following type(s) to OSSL_SELF_TEST_onbegin().
186 =item "Module_Integrity" (B<OSSL_SELF_TEST_TYPE_MODULE_INTEGRITY>)
188 Uses HMAC SHA256 on the module file to validate that the module has not been
189 modified. The integrity value is compared to a value written to a configuration
190 file during installation.
192 =item "Install_Integrity" (B<OSSL_SELF_TEST_TYPE_INSTALL_INTEGRITY>)
194 Uses HMAC SHA256 on a fixed string to validate that the installation process
195 has already been performed and the self test KATS have already been tested,
196 The integrity value is compared to a value written to a configuration
197 file after successfully running the self tests during installation.
199 =item "KAT_Cipher" (B<OSSL_SELF_TEST_TYPE_KAT_CIPHER>)
201 Known answer test for a symmetric cipher.
203 =item "KAT_AsymmetricCipher" (B<OSSL_SELF_TEST_TYPE_KAT_ASYM_CIPHER>)
205 Known answer test for a asymmetric cipher.
207 =item "KAT_Digest" (B<OSSL_SELF_TEST_TYPE_KAT_DIGEST>)
209 Known answer test for a digest.
211 =item "KAT_Signature" (B<OSSL_SELF_TEST_TYPE_KAT_SIGNATURE>)
213 Known answer test for a signature.
215 =item "KAT_KDF" (B<OSSL_SELF_TEST_TYPE_KAT_KDF>)
217 Known answer test for a key derivation function.
219 =item "KAT_KA" (B<OSSL_SELF_TEST_TYPE_KAT_KA>)
221 Known answer test for key agreement.
223 =item "DRBG" (B<OSSL_SELF_TEST_TYPE_DRBG>)
225 Known answer test for a Deterministic Random Bit Generator.
227 =item "Pairwise_Consistency_Test" (B<OSSL_SELF_TEST_TYPE_PCT>)
229 Conditional test that is run during the generation of key pairs.
231 =item "Continuous_RNG_Test" (B<OSSL_SELF_TEST_TYPE_CRNG>)
233 Continuous random number generator test.
237 The "Module_Integrity" self test is always run at startup.
238 The "Install_Integrity" self test is used to check if the self tests have
239 already been run at installation time. If they have already run then the
240 self tests are not run on subsequent startups.
241 All other self test categories are run once at installation time, except for the
242 "Pairwise_Consistency_Test".
244 There is only one instance of the "Module_Integrity" and "Install_Integrity"
245 self tests. All other self tests may have multiple instances.
248 The FIPS module passes the following descriptions(s) to OSSL_SELF_TEST_onbegin().
252 =item "HMAC" (B<OSSL_SELF_TEST_DESC_INTEGRITY_HMAC>)
254 "Module_Integrity" and "Install_Integrity" use this.
256 =item "RSA" (B<OSSL_SELF_TEST_DESC_PCT_RSA_PKCS1>)
258 =item "ECDSA" (B<OSSL_SELF_TEST_DESC_PCT_ECDSA>)
260 =item "DSA" (B<OSSL_SELF_TEST_DESC_PCT_DSA>)
262 Key generation tests used with the "Pairwise_Consistency_Test" type.
264 =item "RSA_Encrypt" (B<OSSL_SELF_TEST_DESC_ASYM_RSA_ENC>)
266 =item "RSA_Decrypt" (B<OSSL_SELF_TEST_DESC_ASYM_RSA_DEC>)
268 "KAT_AsymmetricCipher" uses this to indicate an encrypt or decrypt KAT.
270 =item "AES_GCM" (B<OSSL_SELF_TEST_DESC_CIPHER_AES_GCM>)
272 =item "AES_ECB_Decrypt" (B<OSSL_SELF_TEST_DESC_CIPHER_AES_ECB>)
274 =item "TDES" (B<OSSL_SELF_TEST_DESC_CIPHER_TDES>)
276 Symmetric cipher tests used with the "KAT_Cipher" type.
278 =item "SHA1" (B<OSSL_SELF_TEST_DESC_MD_SHA1>)
280 =item "SHA2" (B<OSSL_SELF_TEST_DESC_MD_SHA2>)
282 =item "SHA3" (B<OSSL_SELF_TEST_DESC_MD_SHA3>)
284 Digest tests used with the "KAT_Digest" type.
286 =item "DSA" (B<OSSL_SELF_TEST_DESC_SIGN_DSA>)
288 =item "RSA" (B<OSSL_SELF_TEST_DESC_SIGN_RSA>)
290 =item "ECDSA" (B<OSSL_SELF_TEST_DESC_SIGN_ECDSA>)
292 Signature tests used with the "KAT_Signature" type.
294 =item "ECDH" (B<OSSL_SELF_TEST_DESC_KA_ECDH>)
296 =item "DH" (B<OSSL_SELF_TEST_DESC_KA_DH>)
298 Key agreement tests used with the "KAT_KA" type.
300 =item "HKDF" (B<OSSL_SELF_TEST_DESC_KDF_HKDF>)
302 =item "SSKDF" (B<OSSL_SELF_TEST_DESC_KDF_SSKDF>)
304 =item "X963KDF" (B<OSSL_SELF_TEST_DESC_KDF_X963KDF>)
306 =item "X942KDF" (B<OSSL_SELF_TEST_DESC_KDF_X942KDF>)
308 =item "PBKDF2" (B<OSSL_SELF_TEST_DESC_KDF_PBKDF2>)
310 =item "SSHKDF" (B<OSSL_SELF_TEST_DESC_KDF_SSHKDF>)
312 =item "TLS12_PRF" (B<OSSL_SELF_TEST_DESC_KDF_TLS12_PRF>)
314 =item "KBKDF" (B<OSSL_SELF_TEST_DESC_KDF_KBKDF>)
316 Key Derivation Function tests used with the "KAT_KDF" type.
318 =item "CTR" (B<OSSL_SELF_TEST_DESC_DRBG_CTR>)
320 =item "HASH" (B<OSSL_SELF_TEST_DESC_DRBG_HASH>)
322 =item "HMAC" (B<OSSL_SELF_TEST_DESC_DRBG_HMAC>)
324 DRBG tests used with the "DRBG" type.
326 = item "RNG" (B<OSSL_SELF_TEST_DESC_RNG>)
328 "Continuous_RNG_Test" uses this.
334 A simple self test callback is shown below for illustrative purposes.
336 #include <openssl/self_test.h>
338 static OSSL_CALLBACK self_test_cb;
340 static int self_test_cb(const OSSL_PARAM params[], void *arg)
343 const OSSL_PARAM *p = NULL;
344 const char *phase = NULL, *type = NULL, *desc = NULL;
346 p = OSSL_PARAM_locate_const(params, OSSL_PROV_PARAM_SELF_TEST_PHASE);
347 if (p == NULL || p->data_type != OSSL_PARAM_UTF8_STRING)
349 phase = (const char *)p->data;
351 p = OSSL_PARAM_locate_const(params, OSSL_PROV_PARAM_SELF_TEST_DESC);
352 if (p == NULL || p->data_type != OSSL_PARAM_UTF8_STRING)
354 desc = (const char *)p->data;
356 p = OSSL_PARAM_locate_const(params, OSSL_PROV_PARAM_SELF_TEST_TYPE);
357 if (p == NULL || p->data_type != OSSL_PARAM_UTF8_STRING)
359 type = (const char *)p->data;
361 /* Do some logging */
362 if (strcmp(phase, OSSL_SELF_TEST_PHASE_START) == 0)
363 BIO_printf(bio_out, "%s : (%s) : ", desc, type);
364 if (strcmp(phase, OSSL_SELF_TEST_PHASE_PASS) == 0
365 || strcmp(phase, OSSL_SELF_TEST_PHASE_FAIL) == 0)
366 BIO_printf(bio_out, "%s\n", phase);
368 /* Corrupt the SHA1 self test during the 'corrupt' phase by returning 0 */
369 if (strcmp(phase, OSSL_SELF_TEST_PHASE_CORRUPT) == 0
370 && strcmp(desc, OSSL_SELF_TEST_DESC_MD_SHA1) == 0) {
371 BIO_printf(bio_out, "%s %s", phase, desc);
381 L<openssl-fipsinstall(1)>,
383 L<OSSL_SELF_TEST_set_callback(3)>,
384 L<OSSL_SELF_TEST_new(3)>,
386 L<openssl-core.h(7)>,
387 L<openssl-core_dispatch.h(7)>,
392 The type and functions described here were added in OpenSSL 3.0.
396 Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
398 Licensed under the Apache License 2.0 (the "License"). You may not use
399 this file except in compliance with the License. You can obtain a copy
400 in the file LICENSE in the source distribution or at
401 L<https://www.openssl.org/source/license.html>.