providers/defltprov.c

   1 /*
   2  * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <string.h>
  11 #include <stdio.h>
  12 #include <openssl/opensslconf.h>
  13 #include <openssl/core.h>
  14 #include <openssl/core_numbers.h>
  15 #include <openssl/core_names.h>
  16 #include <openssl/params.h>
  17 #include "prov/implementations.h"
  18
  19 /* Functions provided by the core */
  20 static OSSL_core_gettable_params_fn *c_gettable_params = NULL;
  21 static OSSL_core_get_params_fn *c_get_params = NULL;
  22
  23 /* Parameters we provide to the core */
  24 static const OSSL_PARAM deflt_param_types[] = {
  25     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
  26     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
  27     OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
  28     OSSL_PARAM_END
  29 };
  30
  31 static const OSSL_PARAM *deflt_gettable_params(const OSSL_PROVIDER *prov)
  32 {
  33     return deflt_param_types;
  34 }
  35
  36 static int deflt_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
  37 {
  38     OSSL_PARAM *p;
  39
  40     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
  41     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Default Provider"))
  42         return 0;
  43     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
  44     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
  45         return 0;
  46     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
  47     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
  48         return 0;
  49
  50     return 1;
  51 }
  52
  53 /*
  54  * For the algorithm names, we use the following formula for our primary
  55  * names:
  56  *
  57  *     ALGNAME[VERSION?][-SUBNAME[VERSION?]?][-SIZE?][-MODE?]
  58  *
  59  *     VERSION is only present if there are multiple versions of
  60  *     an alg (MD2, MD4, MD5).  It may be omitted if there is only
  61  *     one version (if a subsequent version is released in the future,
  62  *     we can always change the canonical name, and add the old name
  63  *     as an alias).
  64  *
  65  *     SUBNAME may be present where we are combining multiple
  66  *     algorithms together, e.g. MD5-SHA1.
  67  *
  68  *     SIZE is only present if multiple versions of an algorithm exist
  69  *     with different sizes (e.g. AES-128-CBC, AES-256-CBC)
  70  *
  71  *     MODE is only present where applicable.
  72  *
  73  * We add diverse other names where applicable, such as the names that
  74  * NIST uses, or that are used for ASN.1 OBJECT IDENTIFIERs, or names
  75  * we have used historically.
  76  *
  77  * Algorithm names are case insensitive, but we use all caps in our "canonical"
  78  * names for consistency.
  79  */
  80 static const OSSL_ALGORITHM deflt_digests[] = {
  81     /* Our primary name:NIST name[:our older names] */
  82     { "SHA1:SHA-1", "default=yes", sha1_functions },
  83     { "SHA2-224:SHA-224:SHA224", "default=yes", sha224_functions },
  84     { "SHA2-256:SHA-256:SHA256", "default=yes", sha256_functions },
  85     { "SHA2-384:SHA-384:SHA384", "default=yes", sha384_functions },
  86     { "SHA2-512:SHA-512:SHA512", "default=yes", sha512_functions },
  87     { "SHA2-512/224:SHA-512/224:SHA512-224", "default=yes",
  88       sha512_224_functions },
  89     { "SHA2-512/256:SHA-512/256:SHA512-256", "default=yes",
  90       sha512_256_functions },
  91
  92     /* We agree with NIST here, so one name only */
  93     { "SHA3-224", "default=yes", sha3_224_functions },
  94     { "SHA3-256", "default=yes", sha3_256_functions },
  95     { "SHA3-384", "default=yes", sha3_384_functions },
  96     { "SHA3-512", "default=yes", sha3_512_functions },
  97
  98     /*
  99      * KECCAK-KMAC-128 and KECCAK-KMAC-256 as hashes are mostly useful for
 100      * the KMAC-128 and KMAC-256.
 101      */
 102     { "KECCAK-KMAC-128:KECCAK-KMAC128", "default=yes", keccak_kmac_128_functions },
 103     { "KECCAK-KMAC-256:KECCAK-KMAC256", "default=yes", keccak_kmac_256_functions },
 104
 105     /* Our primary name:NIST name */
 106     { "SHAKE-128:SHAKE128", "default=yes", shake_128_functions },
 107     { "SHAKE-256:SHAKE256", "default=yes", shake_256_functions },
 108
 109 #ifndef OPENSSL_NO_BLAKE2
 110     /*
 111      * https://blake2.net/ doesn't specify size variants,
 112      * but mentions that Bouncy Castle uses the names
 113      * BLAKE2b-160, BLAKE2b-256, BLAKE2b-384, and BLAKE2b-512
 114      * If we assume that "2b" and "2s" are versions, that pattern
 115      * fits with ours.  We also add our historical names.
 116      */
 117     { "BLAKE2S-256:BLAKE2s256", "default=yes", blake2s256_functions },
 118     { "BLAKE2B-512:BLAKE2b512", "default=yes", blake2b512_functions },
 119 #endif /* OPENSSL_NO_BLAKE2 */
 120
 121 #ifndef OPENSSL_NO_SM3
 122     { "SM3", "default=yes", sm3_functions },
 123 #endif /* OPENSSL_NO_SM3 */
 124
 125 #ifndef OPENSSL_NO_MD5
 126     { "MD5", "default=yes", md5_functions },
 127     { "MD5-SHA1", "default=yes", md5_sha1_functions },
 128 #endif /* OPENSSL_NO_MD5 */
 129
 130     { NULL, NULL, NULL }
 131 };
 132
 133 static const OSSL_ALGORITHM deflt_ciphers[] = {
 134     { "AES-256-ECB", "default=yes", aes256ecb_functions },
 135     { "AES-192-ECB", "default=yes", aes192ecb_functions },
 136     { "AES-128-ECB", "default=yes", aes128ecb_functions },
 137     { "AES-256-CBC", "default=yes", aes256cbc_functions },
 138     { "AES-192-CBC", "default=yes", aes192cbc_functions },
 139     { "AES-128-CBC", "default=yes", aes128cbc_functions },
 140     { "AES-256-OFB", "default=yes", aes256ofb_functions },
 141     { "AES-192-OFB", "default=yes", aes192ofb_functions },
 142     { "AES-128-OFB", "default=yes", aes128ofb_functions },
 143     { "AES-256-CFB", "default=yes", aes256cfb_functions },
 144     { "AES-192-CFB", "default=yes", aes192cfb_functions },
 145     { "AES-128-CFB", "default=yes", aes128cfb_functions },
 146     { "AES-256-CFB1", "default=yes", aes256cfb1_functions },
 147     { "AES-192-CFB1", "default=yes", aes192cfb1_functions },
 148     { "AES-128-CFB1", "default=yes", aes128cfb1_functions },
 149     { "AES-256-CFB8", "default=yes", aes256cfb8_functions },
 150     { "AES-192-CFB8", "default=yes", aes192cfb8_functions },
 151     { "AES-128-CFB8", "default=yes", aes128cfb8_functions },
 152     { "AES-256-CTR", "default=yes", aes256ctr_functions },
 153     { "AES-192-CTR", "default=yes", aes192ctr_functions },
 154     { "AES-128-CTR", "default=yes", aes128ctr_functions },
 155     { "AES-256-XTS", "default=yes", aes256xts_functions },
 156     { "AES-128-XTS", "default=yes", aes128xts_functions },
 157 #ifndef OPENSSL_NO_OCB
 158     { "AES-256-OCB", "default=yes", aes256ocb_functions },
 159     { "AES-192-OCB", "default=yes", aes192ocb_functions },
 160     { "AES-128-OCB", "default=yes", aes128ocb_functions },
 161 #endif /* OPENSSL_NO_OCB */
 162 #ifndef OPENSSL_NO_SIV
 163     { "AES-128-SIV", "default=yes", aes128siv_functions },
 164     { "AES-192-SIV", "default=yes", aes192siv_functions },
 165     { "AES-256-SIV", "default=yes", aes256siv_functions },
 166 #endif /* OPENSSL_NO_SIV */
 167     { "AES-256-GCM:id-aes256-GCM", "default=yes", aes256gcm_functions },
 168     { "AES-192-GCM:id-aes192-GCM", "default=yes", aes192gcm_functions },
 169     { "AES-128-GCM:id-aes128-GCM", "default=yes", aes128gcm_functions },
 170     { "AES-256-CCM:id-aes256-CCM", "default=yes", aes256ccm_functions },
 171     { "AES-192-CCM:id-aes192-CCM", "default=yes", aes192ccm_functions },
 172     { "AES-128-CCM:id-aes128-CCM", "default=yes", aes128ccm_functions },
 173     { "AES-256-WRAP:id-aes256-wrap:AES256-WRAP", "default=yes",
 174       aes256wrap_functions },
 175     { "AES-192-WRAP:id-aes192-wrap:AES192-WRAP", "default=yes",
 176       aes192wrap_functions },
 177     { "AES-128-WRAP:id-aes128-wrap:AES128-WRAP", "default=yes",
 178       aes128wrap_functions },
 179     { "AES-256-WRAP-PAD:id-aes256-wrap-pad:AES256-WRAP-PAD", "default=yes",
 180       aes256wrappad_functions },
 181     { "AES-192-WRAP-PAD:id-aes192-wrap-pad:AES192-WRAP-PAD", "default=yes",
 182       aes192wrappad_functions },
 183     { "AES-128-WRAP-PAD:id-aes128-wrap-pad:AES128-WRAP-PAD", "default=yes",
 184       aes128wrappad_functions },
 185 #ifndef OPENSSL_NO_ARIA
 186     { "ARIA-256-GCM", "default=yes", aria256gcm_functions },
 187     { "ARIA-192-GCM", "default=yes", aria192gcm_functions },
 188     { "ARIA-128-GCM", "default=yes", aria128gcm_functions },
 189     { "ARIA-256-CCM", "default=yes", aria256ccm_functions },
 190     { "ARIA-192-CCM", "default=yes", aria192ccm_functions },
 191     { "ARIA-128-CCM", "default=yes", aria128ccm_functions },
 192     { "ARIA-256-ECB", "default=yes", aria256ecb_functions },
 193     { "ARIA-192-ECB", "default=yes", aria192ecb_functions },
 194     { "ARIA-128-ECB", "default=yes", aria128ecb_functions },
 195     { "ARIA-256-CBC:ARIA256", "default=yes", aria256cbc_functions },
 196     { "ARIA-192-CBC:ARIA192", "default=yes", aria192cbc_functions },
 197     { "ARIA-128-CBC:ARIA128", "default=yes", aria128cbc_functions },
 198     { "ARIA-256-OFB", "default=yes", aria256ofb_functions },
 199     { "ARIA-192-OFB", "default=yes", aria192ofb_functions },
 200     { "ARIA-128-OFB", "default=yes", aria128ofb_functions },
 201     { "ARIA-256-CFB", "default=yes", aria256cfb_functions },
 202     { "ARIA-192-CFB", "default=yes", aria192cfb_functions },
 203     { "ARIA-128-CFB", "default=yes", aria128cfb_functions },
 204     { "ARIA-256-CFB1", "default=yes", aria256cfb1_functions },
 205     { "ARIA-192-CFB1", "default=yes", aria192cfb1_functions },
 206     { "ARIA-128-CFB1", "default=yes", aria128cfb1_functions },
 207     { "ARIA-256-CFB8", "default=yes", aria256cfb8_functions },
 208     { "ARIA-192-CFB8", "default=yes", aria192cfb8_functions },
 209     { "ARIA-128-CFB8", "default=yes", aria128cfb8_functions },
 210     { "ARIA-256-CTR", "default=yes", aria256ctr_functions },
 211     { "ARIA-192-CTR", "default=yes", aria192ctr_functions },
 212     { "ARIA-128-CTR", "default=yes", aria128ctr_functions },
 213 #endif /* OPENSSL_NO_ARIA */
 214 #ifndef OPENSSL_NO_CAMELLIA
 215     { "CAMELLIA-256-ECB", "default=yes", camellia256ecb_functions },
 216     { "CAMELLIA-192-ECB", "default=yes", camellia192ecb_functions },
 217     { "CAMELLIA-128-ECB", "default=yes", camellia128ecb_functions },
 218     { "CAMELLIA-256-CBC:CAMELLIA256", "default=yes", camellia256cbc_functions },
 219     { "CAMELLIA-192-CBC:CAMELLIA192", "default=yes", camellia192cbc_functions },
 220     { "CAMELLIA-128-CBC:CAMELLIA128", "default=yes", camellia128cbc_functions },
 221     { "CAMELLIA-256-OFB", "default=yes", camellia256ofb_functions },
 222     { "CAMELLIA-192-OFB", "default=yes", camellia192ofb_functions },
 223     { "CAMELLIA-128-OFB", "default=yes", camellia128ofb_functions },
 224     { "CAMELLIA-256-CFB", "default=yes", camellia256cfb_functions },
 225     { "CAMELLIA-192-CFB", "default=yes", camellia192cfb_functions },
 226     { "CAMELLIA-128-CFB", "default=yes", camellia128cfb_functions },
 227     { "CAMELLIA-256-CFB1", "default=yes", camellia256cfb1_functions },
 228     { "CAMELLIA-192-CFB1", "default=yes", camellia192cfb1_functions },
 229     { "CAMELLIA-128-CFB1", "default=yes", camellia128cfb1_functions },
 230     { "CAMELLIA-256-CFB8", "default=yes", camellia256cfb8_functions },
 231     { "CAMELLIA-192-CFB8", "default=yes", camellia192cfb8_functions },
 232     { "CAMELLIA-128-CFB8", "default=yes", camellia128cfb8_functions },
 233     { "CAMELLIA-256-CTR", "default=yes", camellia256ctr_functions },
 234     { "CAMELLIA-192-CTR", "default=yes", camellia192ctr_functions },
 235     { "CAMELLIA-128-CTR", "default=yes", camellia128ctr_functions },
 236 #endif /* OPENSSL_NO_CAMELLIA */
 237 #ifndef OPENSSL_NO_DES
 238     { "DES-EDE3-ECB:DES-EDE3", "default=yes", tdes_ede3_ecb_functions },
 239     { "DES-EDE3-CBC:DES3", "default=yes", tdes_ede3_cbc_functions },
 240     { "DES-EDE3-OFB", "default=yes", tdes_ede3_ofb_functions },
 241     { "DES-EDE3-CFB", "default=yes", tdes_ede3_cfb_functions },
 242     { "DES-EDE3-CFB8", "default=yes", tdes_ede3_cfb8_functions },
 243     { "DES-EDE3-CFB1", "default=yes", tdes_ede3_cfb1_functions },
 244     { "DES-EDE-ECB:DES-EDE", "default=yes", tdes_ede2_ecb_functions },
 245     { "DES-EDE-CBC", "default=yes", tdes_ede2_cbc_functions },
 246     { "DES-EDE-OFB", "default=yes", tdes_ede2_ofb_functions },
 247     { "DES-EDE-CFB", "default=yes", tdes_ede2_cfb_functions },
 248     { "DESX-CBC:DESX", "default=yes", tdes_desx_cbc_functions },
 249     { "DES3-WRAP:id-smime-alg-CMS3DESwrap", "default=yes", tdes_wrap_cbc_functions },
 250     { "DES-ECB", "default=yes", des_ecb_functions },
 251     { "DES-CBC:DES", "default=yes", des_cbc_functions },
 252     { "DES-OFB", "default=yes", des_ofb64_functions },
 253     { "DES-CFB", "default=yes", des_cfb64_functions },
 254     { "DES-CFB1", "default=yes", des_cfb1_functions },
 255     { "DES-CFB8", "default=yes", des_cfb8_functions },
 256 #endif /* OPENSSL_NO_DES */
 257 #ifndef OPENSSL_NO_BF
 258     { "BF-ECB", "default=yes", blowfish128ecb_functions },
 259     { "BF-CBC:BF:BLOWFISH", "default=yes", blowfish128cbc_functions },
 260     { "BF-OFB", "default=yes", blowfish64ofb64_functions },
 261     { "BF-CFB", "default=yes", blowfish64cfb64_functions },
 262 #endif /* OPENSSL_NO_BF */
 263 #ifndef OPENSSL_NO_IDEA
 264     { "IDEA-ECB", "default=yes", idea128ecb_functions },
 265     { "IDEA-CBC:IDEA", "default=yes", idea128cbc_functions },
 266     { "IDEA-OFB:IDEA-OFB64", "default=yes", idea128ofb64_functions },
 267     { "IDEA-CFB:IDEA-CFB64", "default=yes", idea128cfb64_functions },
 268 #endif /* OPENSSL_NO_IDEA */
 269 #ifndef OPENSSL_NO_CAST
 270     { "CAST5-ECB", "default=yes", cast5128ecb_functions },
 271     { "CAST5-CBC:CAST-CBC:CAST", "default=yes", cast5128cbc_functions },
 272     { "CAST5-OFB", "default=yes", cast564ofb64_functions },
 273     { "CAST5-CFB", "default=yes", cast564cfb64_functions },
 274 #endif /* OPENSSL_NO_CAST */
 275 #ifndef OPENSSL_NO_SEED
 276     { "SEED-ECB", "default=yes", seed128ecb_functions },
 277     { "SEED-CBC:SEED", "default=yes", seed128cbc_functions },
 278     { "SEED-OFB:SEED-OFB128", "default=yes", seed128ofb128_functions },
 279     { "SEED-CFB:SEED-CFB128", "default=yes", seed128cfb128_functions },
 280 #endif /* OPENSSL_NO_SEED */
 281 #ifndef OPENSSL_NO_SM4
 282     { "SM4-ECB", "default=yes", sm4128ecb_functions },
 283     { "SM4-CBC:SM4", "default=yes", sm4128cbc_functions },
 284     { "SM4-CTR", "default=yes", sm4128ctr_functions },
 285     { "SM4-OFB:SM4-OFB128", "default=yes", sm4128ofb128_functions },
 286     { "SM4-CFB:SM4-CFB128", "default=yes", sm4128cfb128_functions },
 287 #endif /* OPENSSL_NO_SM4 */
 288 #ifndef OPENSSL_NO_RC4
 289     { "RC4", "default=yes", rc4128_functions },
 290     { "RC4-40", "default=yes", rc440_functions },
 291 # ifndef OPENSSL_NO_MD5
 292     { "RC4-HMAC-MD5", "default=yes", rc4_hmac_md5_functions },
 293 # endif /* OPENSSL_NO_MD5 */
 294 #endif /* OPENSSL_NO_RC4 */
 295 #ifndef OPENSSL_NO_RC5
 296     { "RC5-ECB", "default=yes", rc5128ecb_functions },
 297     { "RC5-CBC", "default=yes", rc5128cbc_functions },
 298     { "RC5-OFB", "default=yes", rc5128ofb64_functions },
 299     { "RC5-CFB", "default=yes", rc5128cfb64_functions },
 300 #endif /* OPENSSL_NO_RC5 */
 301 #ifndef OPENSSL_NO_RC2
 302     { "RC2-ECB", "default=yes", rc2128ecb_functions },
 303     { "RC2-CBC", "default=yes", rc2128cbc_functions },
 304     { "RC2-40-CBC", "default=yes", rc240cbc_functions },
 305     { "RC2-64-CBC", "default=yes", rc264cbc_functions },
 306     { "RC2-CFB", "default=yes", rc2128cfb128_functions },
 307     { "RC2-OFB", "default=yes", rc2128ofb128_functions },
 308 #endif /* OPENSSL_NO_RC2 */
 309 #ifndef OPENSSL_NO_CHACHA
 310     { "ChaCha20", "default=yes", chacha20_functions },
 311 # ifndef OPENSSL_NO_POLY1305
 312     { "ChaCha20-Poly1305", "default=yes", chacha20_poly1305_functions },
 313 # endif /* OPENSSL_NO_POLY1305 */
 314 #endif /* OPENSSL_NO_CHACHA */
 315     { NULL, NULL, NULL }
 316 };
 317
 318 static const OSSL_ALGORITHM deflt_macs[] = {
 319 #ifndef OPENSSL_NO_BLAKE2
 320     { "BLAKE2BMAC", "default=yes", blake2bmac_functions },
 321     { "BLAKE2SMAC", "default=yes", blake2smac_functions },
 322 #endif
 323 #ifndef OPENSSL_NO_CMAC
 324     { "CMAC", "default=yes", cmac_functions },
 325 #endif
 326     { "GMAC", "default=yes", gmac_functions },
 327     { "HMAC", "default=yes", hmac_functions },
 328     { "KMAC-128:KMAC128", "default=yes", kmac128_functions },
 329     { "KMAC-256:KMAC256", "default=yes", kmac256_functions },
 330 #ifndef OPENSSL_NO_SIPHASH
 331     { "SIPHASH", "default=yes", siphash_functions },
 332 #endif
 333 #ifndef OPENSSL_NO_POLY1305
 334     { "POLY1305", "default=yes", poly1305_functions },
 335 #endif
 336     { NULL, NULL, NULL }
 337 };
 338
 339 static const OSSL_ALGORITHM deflt_kdfs[] = {
 340     { "HKDF", "default=yes", kdf_hkdf_functions },
 341     { "SSKDF", "default=yes", kdf_sskdf_functions },
 342     { "PBKDF2", "default=yes", kdf_pbkdf2_functions },
 343     { "SSHKDF", "default=yes", kdf_sshkdf_functions },
 344     { "X963KDF", "default=yes", kdf_x963_kdf_functions },
 345     { "TLS1-PRF", "default=yes", kdf_tls1_prf_functions },
 346     { "KBKDF", "default=yes", kdf_kbkdf_functions },
 347 #ifndef OPENSSL_NO_CMS
 348     { "X942KDF", "default=yes", kdf_x942_kdf_functions },
 349 #endif
 350 #ifndef OPENSSL_NO_SCRYPT
 351     { "SCRYPT:id-scrypt", "default=yes", kdf_scrypt_functions },
 352 #endif
 353     { "KRB5KDF", "default=yes", kdf_krb5kdf_functions },
 354     { NULL, NULL, NULL }
 355 };
 356
 357 static const OSSL_ALGORITHM deflt_keyexch[] = {
 358 #ifndef OPENSSL_NO_DH
 359     { "DH:dhKeyAgreement", "default=yes", dh_keyexch_functions },
 360 #endif
 361     { NULL, NULL, NULL }
 362 };
 363
 364 static const OSSL_ALGORITHM deflt_signature[] = {
 365 #ifndef OPENSSL_NO_DSA
 366     { "DSA:dsaEncryption", "default=yes", dsa_signature_functions },
 367 #endif
 368     { NULL, NULL, NULL }
 369 };
 370
 371 static const OSSL_ALGORITHM deflt_asym_cipher[] = {
 372     { "RSA:rsaEncryption", "default=yes", rsa_asym_cipher_functions },
 373     { NULL, NULL, NULL }
 374 };
 375
 376 static const OSSL_ALGORITHM deflt_keymgmt[] = {
 377 #ifndef OPENSSL_NO_DH
 378     { "DH", "default=yes", dh_keymgmt_functions },
 379 #endif
 380 #ifndef OPENSSL_NO_DSA
 381     { "DSA", "default=yes", dsa_keymgmt_functions },
 382 #endif
 383     { "RSA", "default=yes", rsa_keymgmt_functions },
 384     { NULL, NULL, NULL }
 385 };
 386
 387 static const OSSL_ALGORITHM *deflt_query(OSSL_PROVIDER *prov,
 388                                          int operation_id,
 389                                          int *no_cache)
 390 {
 391     *no_cache = 0;
 392     switch (operation_id) {
 393     case OSSL_OP_DIGEST:
 394         return deflt_digests;
 395     case OSSL_OP_CIPHER:
 396         return deflt_ciphers;
 397     case OSSL_OP_MAC:
 398         return deflt_macs;
 399     case OSSL_OP_KDF:
 400         return deflt_kdfs;
 401     case OSSL_OP_KEYMGMT:
 402         return deflt_keymgmt;
 403     case OSSL_OP_KEYEXCH:
 404         return deflt_keyexch;
 405     case OSSL_OP_SIGNATURE:
 406         return deflt_signature;
 407     case OSSL_OP_ASYM_CIPHER:
 408         return deflt_asym_cipher;
 409     }
 410     return NULL;
 411 }
 412
 413 /* Functions we provide to the core */
 414 static const OSSL_DISPATCH deflt_dispatch_table[] = {
 415     { OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))deflt_gettable_params },
 416     { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))deflt_get_params },
 417     { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))deflt_query },
 418     { 0, NULL }
 419 };
 420
 421 OSSL_provider_init_fn ossl_default_provider_init;
 422
 423 int ossl_default_provider_init(const OSSL_PROVIDER *provider,
 424                                const OSSL_DISPATCH *in,
 425                                const OSSL_DISPATCH **out,
 426                                void **provctx)
 427 {
 428     OSSL_core_get_library_context_fn *c_get_libctx = NULL;
 429
 430     for (; in->function_id != 0; in++) {
 431         switch (in->function_id) {
 432         case OSSL_FUNC_CORE_GETTABLE_PARAMS:
 433             c_gettable_params = OSSL_get_core_gettable_params(in);
 434             break;
 435         case OSSL_FUNC_CORE_GET_PARAMS:
 436             c_get_params = OSSL_get_core_get_params(in);
 437             break;
 438         case OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT:
 439             c_get_libctx = OSSL_get_core_get_library_context(in);
 440             break;
 441         default:
 442             /* Just ignore anything we don't understand */
 443             break;
 444         }
 445     }
 446
 447     if (c_get_libctx == NULL)
 448         return 0;
 449
 450     *out = deflt_dispatch_table;
 451
 452     /*
 453      * We want to make sure that all calls from this provider that requires
 454      * a library context use the same context as the one used to call our
 455      * functions.  We do that by passing it along as the provider context.
 456      */
 457     *provctx = c_get_libctx(provider);
 458     return 1;
 459 }