providers/implementations/keymgmt/rsa_kmgmt.c

   1 /*
   2  * Copyright 2019-2020 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 /*
  11  * RSA low level APIs are deprecated for public use, but still ok for
  12  * internal use.
  13  */
  14 #include "internal/deprecated.h"
  15
  16 #include <openssl/core_numbers.h>
  17 #include <openssl/core_names.h>
  18 #include <openssl/bn.h>
  19 #include <openssl/err.h>
  20 #include <openssl/rsa.h>
  21 #include <openssl/evp.h>
  22 #include "prov/implementations.h"
  23 #include "prov/providercommon.h"
  24 #include "prov/provider_ctx.h"
  25 #include "crypto/rsa.h"
  26 #include "internal/param_build_set.h"
  27
  28 static OSSL_OP_keymgmt_new_fn rsa_newdata;
  29 static OSSL_OP_keymgmt_gen_init_fn rsa_gen_init;
  30 static OSSL_OP_keymgmt_gen_set_params_fn rsa_gen_set_params;
  31 static OSSL_OP_keymgmt_gen_settable_params_fn rsa_gen_settable_params;
  32 static OSSL_OP_keymgmt_gen_fn rsa_gen;
  33 static OSSL_OP_keymgmt_gen_cleanup_fn rsa_gen_cleanup;
  34 static OSSL_OP_keymgmt_free_fn rsa_freedata;
  35 static OSSL_OP_keymgmt_get_params_fn rsa_get_params;
  36 static OSSL_OP_keymgmt_gettable_params_fn rsa_gettable_params;
  37 static OSSL_OP_keymgmt_has_fn rsa_has;
  38 static OSSL_OP_keymgmt_match_fn rsa_match;
  39 static OSSL_OP_keymgmt_validate_fn rsa_validate;
  40 static OSSL_OP_keymgmt_import_fn rsa_import;
  41 static OSSL_OP_keymgmt_import_types_fn rsa_import_types;
  42 static OSSL_OP_keymgmt_export_fn rsa_export;
  43 static OSSL_OP_keymgmt_export_types_fn rsa_export_types;
  44
  45 #define RSA_DEFAULT_MD "SHA256"
  46 #define RSA_POSSIBLE_SELECTIONS                                                \
  47     (OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS)
  48
  49 DEFINE_STACK_OF(BIGNUM)
  50 DEFINE_SPECIAL_STACK_OF_CONST(BIGNUM_const, BIGNUM)
  51
  52 static int key_to_params(RSA *rsa, OSSL_PARAM_BLD *bld, OSSL_PARAM params[])
  53 {
  54     int ret = 0;
  55     const BIGNUM *rsa_d = NULL, *rsa_n = NULL, *rsa_e = NULL;
  56     STACK_OF(BIGNUM_const) *factors = sk_BIGNUM_const_new_null();
  57     STACK_OF(BIGNUM_const) *exps = sk_BIGNUM_const_new_null();
  58     STACK_OF(BIGNUM_const) *coeffs = sk_BIGNUM_const_new_null();
  59
  60     if (rsa == NULL || factors == NULL || exps == NULL || coeffs == NULL)
  61         goto err;
  62
  63     RSA_get0_key(rsa, &rsa_n, &rsa_e, &rsa_d);
  64     rsa_get0_all_params(rsa, factors, exps, coeffs);
  65
  66     if (!ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_RSA_N, rsa_n)
  67         || !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_RSA_E, rsa_e)
  68         || !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_RSA_D, rsa_d)
  69         || !ossl_param_build_set_multi_key_bn(bld, params, rsa_mp_factor_names,
  70                                               factors)
  71         || !ossl_param_build_set_multi_key_bn(bld, params, rsa_mp_exp_names,
  72                                               exps)
  73         || !ossl_param_build_set_multi_key_bn(bld, params, rsa_mp_coeff_names,
  74                                               coeffs))
  75         goto err;
  76     ret = 1;
  77  err:
  78     sk_BIGNUM_const_free(factors);
  79     sk_BIGNUM_const_free(exps);
  80     sk_BIGNUM_const_free(coeffs);
  81     return ret;
  82 }
  83
  84 static void *rsa_newdata(void *provctx)
  85 {
  86     OPENSSL_CTX *libctx = PROV_LIBRARY_CONTEXT_OF(provctx);
  87
  88     return rsa_new_with_ctx(libctx);
  89 }
  90
  91 static void rsa_freedata(void *keydata)
  92 {
  93     RSA_free(keydata);
  94 }
  95
  96 static int rsa_has(void *keydata, int selection)
  97 {
  98     RSA *rsa = keydata;
  99     int ok = 0;
 100
 101     if (rsa != NULL) {
 102         if ((selection & RSA_POSSIBLE_SELECTIONS) != 0)
 103             ok = 1;
 104
 105         if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
 106             ok = ok && 0;     /* This will change with PSS and OAEP */
 107         if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
 108             ok = ok && (RSA_get0_e(rsa) != NULL);
 109         if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
 110             ok = ok && (RSA_get0_n(rsa) != NULL);
 111         if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
 112             ok = ok && (RSA_get0_d(rsa) != NULL);
 113     }
 114     return ok;
 115 }
 116
 117 static int rsa_match(const void *keydata1, const void *keydata2, int selection)
 118 {
 119     const RSA *rsa1 = keydata1;
 120     const RSA *rsa2 = keydata2;
 121     int ok = 1;
 122
 123     /* There is always an |e| */
 124     ok = ok && BN_cmp(RSA_get0_e(rsa1), RSA_get0_e(rsa2)) == 0;
 125     if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
 126         ok = ok && BN_cmp(RSA_get0_n(rsa1), RSA_get0_n(rsa2)) == 0;
 127     if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
 128         ok = ok && BN_cmp(RSA_get0_d(rsa1), RSA_get0_d(rsa2)) == 0;
 129     return ok;
 130 }
 131
 132 static int rsa_import(void *keydata, int selection, const OSSL_PARAM params[])
 133 {
 134     RSA *rsa = keydata;
 135     int ok = 1;
 136
 137     if (rsa == NULL)
 138         return 0;
 139
 140     /* TODO(3.0) PSS and OAEP should bring on parameters */
 141
 142     if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
 143         ok = ok && rsa_fromdata(rsa, params);
 144
 145     return ok;
 146 }
 147
 148 static int rsa_export(void *keydata, int selection,
 149                       OSSL_CALLBACK *param_callback, void *cbarg)
 150 {
 151     RSA *rsa = keydata;
 152     OSSL_PARAM_BLD *tmpl;
 153     OSSL_PARAM *params = NULL;
 154     int ok = 1;
 155
 156     if (rsa == NULL)
 157         return 0;
 158
 159     /* TODO(3.0) PSS and OAEP should bring on parameters */
 160
 161     tmpl = OSSL_PARAM_BLD_new();
 162     if (tmpl == NULL)
 163         return 0;
 164
 165     if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
 166         ok = ok && key_to_params(rsa, tmpl, NULL);
 167
 168     if (!ok
 169         || (params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL)
 170         goto err;
 171
 172     ok = param_callback(params, cbarg);
 173     OSSL_PARAM_BLD_free_params(params);
 174 err:
 175     OSSL_PARAM_BLD_free(tmpl);
 176     return ok;
 177 }
 178
 179 #ifdef FIPS_MODULE
 180 /* In fips mode there are no multi-primes. */
 181 # define RSA_KEY_MP_TYPES()                                                    \
 182 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR1, NULL, 0),                           \
 183 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR2, NULL, 0),                           \
 184 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT1, NULL, 0),                         \
 185 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT2, NULL, 0),                         \
 186 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT1, NULL, 0),
 187 #else
 188 /*
 189  * We allow up to 10 prime factors (starting with p, q).
 190  * NOTE: there is only 9 OSSL_PKEY_PARAM_RSA_COEFFICIENT
 191  */
 192 # define RSA_KEY_MP_TYPES()                                                    \
 193 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR1, NULL, 0),                           \
 194 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR2, NULL, 0),                           \
 195 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR3, NULL, 0),                           \
 196 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR4, NULL, 0),                           \
 197 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR5, NULL, 0),                           \
 198 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR6, NULL, 0),                           \
 199 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR7, NULL, 0),                           \
 200 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR8, NULL, 0),                           \
 201 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR9, NULL, 0),                           \
 202 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR10, NULL, 0),                          \
 203 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT1, NULL, 0),                         \
 204 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT2, NULL, 0),                         \
 205 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT3, NULL, 0),                         \
 206 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT4, NULL, 0),                         \
 207 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT5, NULL, 0),                         \
 208 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT6, NULL, 0),                         \
 209 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT7, NULL, 0),                         \
 210 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT8, NULL, 0),                         \
 211 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT9, NULL, 0),                         \
 212 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT10, NULL, 0),                        \
 213 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT1, NULL, 0),                      \
 214 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT2, NULL, 0),                      \
 215 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT3, NULL, 0),                      \
 216 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT4, NULL, 0),                      \
 217 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT5, NULL, 0),                      \
 218 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT6, NULL, 0),                      \
 219 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT7, NULL, 0),                      \
 220 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT8, NULL, 0),                      \
 221 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT9, NULL, 0),
 222 #endif
 223
 224 #define RSA_KEY_TYPES()                                                        \
 225 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_N, NULL, 0),                                 \
 226 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_E, NULL, 0),                                 \
 227 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_D, NULL, 0),                                 \
 228 RSA_KEY_MP_TYPES()
 229
 230 /*
 231  * This provider can export everything in an RSA key, so we use the exact
 232  * same type description for export as for import.  Other providers might
 233  * choose to import full keys, but only export the public parts, and will
 234  * therefore have the importkey_types and importkey_types functions return
 235  * different arrays.
 236  */
 237 static const OSSL_PARAM rsa_key_types[] = {
 238     RSA_KEY_TYPES()
 239     OSSL_PARAM_END
 240 };
 241 /*
 242  * We lied about the amount of factors, exponents and coefficients, the
 243  * export and import functions can really deal with an infinite amount
 244  * of these numbers.  However, RSA keys with too many primes are futile,
 245  * so we at least pretend to have some limits.
 246  */
 247
 248 static const OSSL_PARAM *rsa_imexport_types(int selection)
 249 {
 250     if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
 251         return rsa_key_types;
 252     return NULL;
 253 }
 254
 255 static const OSSL_PARAM *rsa_import_types(int selection)
 256 {
 257     return rsa_imexport_types(selection);
 258 }
 259
 260 static const OSSL_PARAM *rsa_export_types(int selection)
 261 {
 262     return rsa_imexport_types(selection);
 263 }
 264
 265 static int rsa_get_params(void *key, OSSL_PARAM params[])
 266 {
 267     RSA *rsa = key;
 268     OSSL_PARAM *p;
 269
 270     if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
 271         && !OSSL_PARAM_set_int(p, RSA_bits(rsa)))
 272         return 0;
 273     if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL
 274         && !OSSL_PARAM_set_int(p, RSA_security_bits(rsa)))
 275         return 0;
 276     if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
 277         && !OSSL_PARAM_set_int(p, RSA_size(rsa)))
 278         return 0;
 279
 280 # if 0  /* TODO(3.0): PSS support pending */
 281     if ((p = OSSL_PARAM_locate(params,
 282                                OSSL_PKEY_PARAM_MANDATORY_DIGEST)) != NULL
 283         && RSA_get0_pss_params(rsa) != NULL) {
 284         const EVP_MD *md, *mgf1md;
 285         int min_saltlen;
 286
 287         if (!rsa_pss_get_param(RSA_get0_pss_params(rsa),
 288                                &md, &mgf1md, &min_saltlen)) {
 289             ERR_raise(ERR_LIB_PROV, ERR_R_INTERNAL_ERROR);
 290             return 0;
 291         }
 292         if (!OSSL_PARAM_set_utf8_string(p, EVP_MD_name(md)))
 293             return 0;
 294     }
 295 #endif
 296     if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
 297 /* TODO(3.0): PSS support pending */
 298 #if 0
 299             && RSA_get0_pss_params(rsa) == NULL
 300 #endif
 301             ) {
 302         if (!OSSL_PARAM_set_utf8_string(p, RSA_DEFAULT_MD))
 303             return 0;
 304     }
 305     return key_to_params(rsa, NULL, params);
 306 }
 307
 308 static const OSSL_PARAM rsa_params[] = {
 309     OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
 310     OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
 311     OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
 312     OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
 313     RSA_KEY_TYPES()
 314     OSSL_PARAM_END
 315 };
 316
 317 static const OSSL_PARAM *rsa_gettable_params(void)
 318 {
 319     return rsa_params;
 320 }
 321
 322 static int rsa_validate(void *keydata, int selection)
 323 {
 324     RSA *rsa = keydata;
 325     int ok = 0;
 326
 327     if ((selection & RSA_POSSIBLE_SELECTIONS) != 0)
 328         ok = 1;
 329
 330     /* If the whole key is selected, we do a pairwise validation */
 331     if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR)
 332         == OSSL_KEYMGMT_SELECT_KEYPAIR) {
 333         ok = ok && rsa_validate_pairwise(rsa);
 334     } else {
 335         if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
 336             ok = ok && rsa_validate_private(rsa);
 337         if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
 338             ok = ok && rsa_validate_public(rsa);
 339     }
 340     return ok;
 341 }
 342
 343 struct rsa_gen_ctx {
 344     OPENSSL_CTX *libctx;
 345
 346     size_t nbits;
 347     BIGNUM *pub_exp;
 348     size_t primes;
 349
 350     /* For generation callback */
 351     OSSL_CALLBACK *cb;
 352     void *cbarg;
 353 };
 354
 355 static int rsa_gencb(int p, int n, BN_GENCB *cb)
 356 {
 357     struct rsa_gen_ctx *gctx = BN_GENCB_get_arg(cb);
 358     OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END, OSSL_PARAM_END };
 359
 360     params[0] = OSSL_PARAM_construct_int(OSSL_GEN_PARAM_POTENTIAL, &p);
 361     params[1] = OSSL_PARAM_construct_int(OSSL_GEN_PARAM_ITERATION, &n);
 362
 363     return gctx->cb(params, gctx->cbarg);
 364 }
 365
 366 static void *rsa_gen_init(void *provctx, int selection)
 367 {
 368     OPENSSL_CTX *libctx = PROV_LIBRARY_CONTEXT_OF(provctx);
 369     struct rsa_gen_ctx *gctx = NULL;
 370
 371     if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0)
 372         return NULL;
 373
 374     if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
 375         gctx->libctx = libctx;
 376         if ((gctx->pub_exp = BN_new()) == NULL
 377             || !BN_set_word(gctx->pub_exp, RSA_F4)) {
 378             BN_free(gctx->pub_exp);
 379             gctx = NULL;
 380         } else {
 381             gctx->nbits = 2048;
 382             gctx->primes = RSA_DEFAULT_PRIME_NUM;
 383         }
 384     }
 385     return gctx;
 386 }
 387
 388 static int rsa_gen_set_params(void *genctx, const OSSL_PARAM params[])
 389 {
 390     struct rsa_gen_ctx *gctx = genctx;
 391     const OSSL_PARAM *p;
 392
 393     if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_BITS)) != NULL
 394         && !OSSL_PARAM_get_size_t(p, &gctx->nbits))
 395         return 0;
 396     if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_PRIMES)) != NULL
 397         && !OSSL_PARAM_get_size_t(p, &gctx->primes))
 398         return 0;
 399     if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_E)) != NULL
 400         && !OSSL_PARAM_get_BN(p, &gctx->pub_exp))
 401         return 0;
 402     return 1;
 403 }
 404
 405 static const OSSL_PARAM *rsa_gen_settable_params(void *provctx)
 406 {
 407     static OSSL_PARAM settable[] = {
 408         OSSL_PARAM_size_t(OSSL_PKEY_PARAM_RSA_BITS, NULL),
 409         OSSL_PARAM_size_t(OSSL_PKEY_PARAM_RSA_PRIMES, NULL),
 410         OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_E, NULL, 0),
 411         OSSL_PARAM_END
 412     };
 413
 414     return settable;
 415 }
 416
 417 static void *rsa_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
 418 {
 419     struct rsa_gen_ctx *gctx = genctx;
 420     RSA *rsa = NULL;
 421     BN_GENCB *gencb = NULL;
 422
 423     if (gctx == NULL
 424         || (rsa = rsa_new_with_ctx(gctx->libctx)) == NULL)
 425         return NULL;
 426
 427     gctx->cb = osslcb;
 428     gctx->cbarg = cbarg;
 429     gencb = BN_GENCB_new();
 430     if (gencb != NULL)
 431         BN_GENCB_set(gencb, rsa_gencb, genctx);
 432
 433     if (!RSA_generate_multi_prime_key(rsa, (int)gctx->nbits, (int)gctx->primes,
 434                                       gctx->pub_exp, gencb)) {
 435         RSA_free(rsa);
 436         rsa = NULL;
 437     }
 438
 439     BN_GENCB_free(gencb);
 440
 441     return rsa;
 442 }
 443
 444 static void rsa_gen_cleanup(void *genctx)
 445 {
 446     struct rsa_gen_ctx *gctx = genctx;
 447
 448     if (gctx == NULL)
 449         return;
 450
 451     BN_clear_free(gctx->pub_exp);
 452     OPENSSL_free(gctx);
 453 }
 454
 455 const OSSL_DISPATCH rsa_keymgmt_functions[] = {
 456     { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))rsa_newdata },
 457     { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))rsa_gen_init },
 458     { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS,
 459       (void (*)(void))rsa_gen_set_params },
 460     { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
 461       (void (*)(void))rsa_gen_settable_params },
 462     { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))rsa_gen },
 463     { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))rsa_gen_cleanup },
 464     { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))rsa_freedata },
 465     { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))rsa_get_params },
 466     { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))rsa_gettable_params },
 467     { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))rsa_has },
 468     { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))rsa_match },
 469     { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))rsa_validate },
 470     { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))rsa_import },
 471     { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))rsa_import_types },
 472     { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))rsa_export },
 473     { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))rsa_export_types },
 474     { 0, NULL }
 475 };