2 * Copyright 2019-2022 The OpenSSL Project Authors. All Rights Reserved.
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
11 * RSA low level APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
16 #include <openssl/core_dispatch.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 <openssl/proverr.h>
23 #include "prov/implementations.h"
24 #include "prov/providercommon.h"
25 #include "prov/provider_ctx.h"
26 #include "crypto/rsa.h"
27 #include "crypto/cryptlib.h"
28 #include "internal/param_build_set.h"
30 static OSSL_FUNC_keymgmt_new_fn rsa_newdata
;
31 static OSSL_FUNC_keymgmt_new_fn rsapss_newdata
;
32 static OSSL_FUNC_keymgmt_gen_init_fn rsa_gen_init
;
33 static OSSL_FUNC_keymgmt_gen_init_fn rsapss_gen_init
;
34 static OSSL_FUNC_keymgmt_gen_set_params_fn rsa_gen_set_params
;
35 static OSSL_FUNC_keymgmt_gen_settable_params_fn rsa_gen_settable_params
;
36 static OSSL_FUNC_keymgmt_gen_settable_params_fn rsapss_gen_settable_params
;
37 static OSSL_FUNC_keymgmt_gen_fn rsa_gen
;
38 static OSSL_FUNC_keymgmt_gen_cleanup_fn rsa_gen_cleanup
;
39 static OSSL_FUNC_keymgmt_load_fn rsa_load
;
40 static OSSL_FUNC_keymgmt_load_fn rsapss_load
;
41 static OSSL_FUNC_keymgmt_free_fn rsa_freedata
;
42 static OSSL_FUNC_keymgmt_get_params_fn rsa_get_params
;
43 static OSSL_FUNC_keymgmt_gettable_params_fn rsa_gettable_params
;
44 static OSSL_FUNC_keymgmt_has_fn rsa_has
;
45 static OSSL_FUNC_keymgmt_match_fn rsa_match
;
46 static OSSL_FUNC_keymgmt_validate_fn rsa_validate
;
47 static OSSL_FUNC_keymgmt_import_fn rsa_import
;
48 static OSSL_FUNC_keymgmt_import_types_fn rsa_import_types
;
49 static OSSL_FUNC_keymgmt_export_fn rsa_export
;
50 static OSSL_FUNC_keymgmt_export_types_fn rsa_export_types
;
51 static OSSL_FUNC_keymgmt_query_operation_name_fn rsa_query_operation_name
;
52 static OSSL_FUNC_keymgmt_dup_fn rsa_dup
;
54 #define RSA_DEFAULT_MD "SHA256"
55 #define RSA_PSS_DEFAULT_MD OSSL_DIGEST_NAME_SHA1
56 #define RSA_POSSIBLE_SELECTIONS \
57 (OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS)
59 DEFINE_STACK_OF(BIGNUM
)
60 DEFINE_SPECIAL_STACK_OF_CONST(BIGNUM_const
, BIGNUM
)
62 static int pss_params_fromdata(RSA_PSS_PARAMS_30
*pss_params
, int *defaults_set
,
63 const OSSL_PARAM params
[], int rsa_type
,
66 if (!ossl_rsa_pss_params_30_fromdata(pss_params
, defaults_set
,
70 /* If not a PSS type RSA, sending us PSS parameters is wrong */
71 if (rsa_type
!= RSA_FLAG_TYPE_RSASSAPSS
72 && !ossl_rsa_pss_params_30_is_unrestricted(pss_params
))
78 static void *rsa_newdata(void *provctx
)
80 OSSL_LIB_CTX
*libctx
= PROV_LIBCTX_OF(provctx
);
83 if (!ossl_prov_is_running())
86 rsa
= ossl_rsa_new_with_ctx(libctx
);
88 RSA_clear_flags(rsa
, RSA_FLAG_TYPE_MASK
);
89 RSA_set_flags(rsa
, RSA_FLAG_TYPE_RSA
);
94 static void *rsapss_newdata(void *provctx
)
96 OSSL_LIB_CTX
*libctx
= PROV_LIBCTX_OF(provctx
);
99 if (!ossl_prov_is_running())
102 rsa
= ossl_rsa_new_with_ctx(libctx
);
104 RSA_clear_flags(rsa
, RSA_FLAG_TYPE_MASK
);
105 RSA_set_flags(rsa
, RSA_FLAG_TYPE_RSASSAPSS
);
110 static void rsa_freedata(void *keydata
)
115 static int rsa_has(const void *keydata
, int selection
)
117 const RSA
*rsa
= keydata
;
120 if (rsa
== NULL
|| !ossl_prov_is_running())
122 if ((selection
& RSA_POSSIBLE_SELECTIONS
) == 0)
123 return 1; /* the selection is not missing */
125 /* OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS are always available even if empty */
126 if ((selection
& OSSL_KEYMGMT_SELECT_KEYPAIR
) != 0)
127 ok
= ok
&& (RSA_get0_n(rsa
) != NULL
);
128 if ((selection
& OSSL_KEYMGMT_SELECT_PUBLIC_KEY
) != 0)
129 ok
= ok
&& (RSA_get0_e(rsa
) != NULL
);
130 if ((selection
& OSSL_KEYMGMT_SELECT_PRIVATE_KEY
) != 0)
131 ok
= ok
&& (RSA_get0_d(rsa
) != NULL
);
135 static int rsa_match(const void *keydata1
, const void *keydata2
, int selection
)
137 const RSA
*rsa1
= keydata1
;
138 const RSA
*rsa2
= keydata2
;
141 if (!ossl_prov_is_running())
144 /* There is always an |e| */
145 ok
= ok
&& BN_cmp(RSA_get0_e(rsa1
), RSA_get0_e(rsa2
)) == 0;
146 if ((selection
& OSSL_KEYMGMT_SELECT_KEYPAIR
) != 0) {
149 if ((selection
& OSSL_KEYMGMT_SELECT_PUBLIC_KEY
) != 0) {
150 const BIGNUM
*pa
= RSA_get0_n(rsa1
);
151 const BIGNUM
*pb
= RSA_get0_n(rsa2
);
153 if (pa
!= NULL
&& pb
!= NULL
) {
154 ok
= ok
&& BN_cmp(pa
, pb
) == 0;
159 && (selection
& OSSL_KEYMGMT_SELECT_PRIVATE_KEY
) != 0) {
160 const BIGNUM
*pa
= RSA_get0_d(rsa1
);
161 const BIGNUM
*pb
= RSA_get0_d(rsa2
);
163 if (pa
!= NULL
&& pb
!= NULL
) {
164 ok
= ok
&& BN_cmp(pa
, pb
) == 0;
168 ok
= ok
&& key_checked
;
173 static int rsa_import(void *keydata
, int selection
, const OSSL_PARAM params
[])
178 int pss_defaults_set
= 0;
180 if (!ossl_prov_is_running() || rsa
== NULL
)
183 if ((selection
& RSA_POSSIBLE_SELECTIONS
) == 0)
186 rsa_type
= RSA_test_flags(rsa
, RSA_FLAG_TYPE_MASK
);
188 if ((selection
& OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS
) != 0)
189 ok
= ok
&& pss_params_fromdata(ossl_rsa_get0_pss_params_30(rsa
),
192 ossl_rsa_get0_libctx(rsa
));
193 if ((selection
& OSSL_KEYMGMT_SELECT_KEYPAIR
) != 0) {
194 int include_private
=
195 selection
& OSSL_KEYMGMT_SELECT_PRIVATE_KEY
? 1 : 0;
197 ok
= ok
&& ossl_rsa_fromdata(rsa
, params
, include_private
);
203 static int rsa_export(void *keydata
, int selection
,
204 OSSL_CALLBACK
*param_callback
, void *cbarg
)
207 const RSA_PSS_PARAMS_30
*pss_params
= ossl_rsa_get0_pss_params_30(rsa
);
208 OSSL_PARAM_BLD
*tmpl
;
209 OSSL_PARAM
*params
= NULL
;
212 if (!ossl_prov_is_running() || rsa
== NULL
)
215 if ((selection
& RSA_POSSIBLE_SELECTIONS
) == 0)
218 tmpl
= OSSL_PARAM_BLD_new();
222 if ((selection
& OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS
) != 0)
223 ok
= ok
&& (ossl_rsa_pss_params_30_is_unrestricted(pss_params
)
224 || ossl_rsa_pss_params_30_todata(pss_params
, tmpl
, NULL
));
225 if ((selection
& OSSL_KEYMGMT_SELECT_KEYPAIR
) != 0) {
226 int include_private
=
227 selection
& OSSL_KEYMGMT_SELECT_PRIVATE_KEY
? 1 : 0;
229 ok
= ok
&& ossl_rsa_todata(rsa
, tmpl
, NULL
, include_private
);
232 if (!ok
|| (params
= OSSL_PARAM_BLD_to_param(tmpl
)) == NULL
) {
237 ok
= param_callback(params
, cbarg
);
238 OSSL_PARAM_free(params
);
240 OSSL_PARAM_BLD_free(tmpl
);
245 /* In fips mode there are no multi-primes. */
246 # define RSA_KEY_MP_TYPES() \
247 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR1, NULL, 0), \
248 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR2, NULL, 0), \
249 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT1, NULL, 0), \
250 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT2, NULL, 0), \
251 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT1, NULL, 0),
254 * We allow up to 10 prime factors (starting with p, q).
255 * NOTE: there is only 9 OSSL_PKEY_PARAM_RSA_COEFFICIENT
257 # define RSA_KEY_MP_TYPES() \
258 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR1, NULL, 0), \
259 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR2, NULL, 0), \
260 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR3, NULL, 0), \
261 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR4, NULL, 0), \
262 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR5, NULL, 0), \
263 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR6, NULL, 0), \
264 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR7, NULL, 0), \
265 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR8, NULL, 0), \
266 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR9, NULL, 0), \
267 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR10, NULL, 0), \
268 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT1, NULL, 0), \
269 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT2, NULL, 0), \
270 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT3, NULL, 0), \
271 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT4, NULL, 0), \
272 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT5, NULL, 0), \
273 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT6, NULL, 0), \
274 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT7, NULL, 0), \
275 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT8, NULL, 0), \
276 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT9, NULL, 0), \
277 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT10, NULL, 0), \
278 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT1, NULL, 0), \
279 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT2, NULL, 0), \
280 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT3, NULL, 0), \
281 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT4, NULL, 0), \
282 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT5, NULL, 0), \
283 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT6, NULL, 0), \
284 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT7, NULL, 0), \
285 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT8, NULL, 0), \
286 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT9, NULL, 0),
289 #define RSA_KEY_TYPES() \
290 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_N, NULL, 0), \
291 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_E, NULL, 0), \
292 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_D, NULL, 0), \
296 * This provider can export everything in an RSA key, so we use the exact
297 * same type description for export as for import. Other providers might
298 * choose to import full keys, but only export the public parts, and will
299 * therefore have the importkey_types and importkey_types functions return
302 static const OSSL_PARAM rsa_key_types
[] = {
307 * We lied about the amount of factors, exponents and coefficients, the
308 * export and import functions can really deal with an infinite amount
309 * of these numbers. However, RSA keys with too many primes are futile,
310 * so we at least pretend to have some limits.
313 static const OSSL_PARAM
*rsa_imexport_types(int selection
)
315 if ((selection
& OSSL_KEYMGMT_SELECT_KEYPAIR
) != 0)
316 return rsa_key_types
;
320 static const OSSL_PARAM
*rsa_import_types(int selection
)
322 return rsa_imexport_types(selection
);
325 static const OSSL_PARAM
*rsa_export_types(int selection
)
327 return rsa_imexport_types(selection
);
330 static int rsa_get_params(void *key
, OSSL_PARAM params
[])
333 const RSA_PSS_PARAMS_30
*pss_params
= ossl_rsa_get0_pss_params_30(rsa
);
334 int rsa_type
= RSA_test_flags(rsa
, RSA_FLAG_TYPE_MASK
);
336 int empty
= RSA_get0_n(rsa
) == NULL
;
338 if ((p
= OSSL_PARAM_locate(params
, OSSL_PKEY_PARAM_BITS
)) != NULL
339 && (empty
|| !OSSL_PARAM_set_int(p
, RSA_bits(rsa
))))
341 if ((p
= OSSL_PARAM_locate(params
, OSSL_PKEY_PARAM_SECURITY_BITS
)) != NULL
342 && (empty
|| !OSSL_PARAM_set_int(p
, RSA_security_bits(rsa
))))
344 if ((p
= OSSL_PARAM_locate(params
, OSSL_PKEY_PARAM_MAX_SIZE
)) != NULL
345 && (empty
|| !OSSL_PARAM_set_int(p
, RSA_size(rsa
))))
349 * For restricted RSA-PSS keys, we ignore the default digest request.
350 * With RSA-OAEP keys, this may need to be amended.
352 if ((p
= OSSL_PARAM_locate(params
, OSSL_PKEY_PARAM_DEFAULT_DIGEST
)) != NULL
353 && (rsa_type
!= RSA_FLAG_TYPE_RSASSAPSS
354 || ossl_rsa_pss_params_30_is_unrestricted(pss_params
))) {
355 if (!OSSL_PARAM_set_utf8_string(p
, RSA_DEFAULT_MD
))
360 * For non-RSA-PSS keys, we ignore the mandatory digest request.
361 * With RSA-OAEP keys, this may need to be amended.
363 if ((p
= OSSL_PARAM_locate(params
,
364 OSSL_PKEY_PARAM_MANDATORY_DIGEST
)) != NULL
365 && rsa_type
== RSA_FLAG_TYPE_RSASSAPSS
366 && !ossl_rsa_pss_params_30_is_unrestricted(pss_params
)) {
368 ossl_rsa_oaeppss_nid2name(ossl_rsa_pss_params_30_hashalg(pss_params
));
370 if (mdname
== NULL
|| !OSSL_PARAM_set_utf8_string(p
, mdname
))
373 return (rsa_type
!= RSA_FLAG_TYPE_RSASSAPSS
374 || ossl_rsa_pss_params_30_todata(pss_params
, NULL
, params
))
375 && ossl_rsa_todata(rsa
, NULL
, params
, 1);
378 static const OSSL_PARAM rsa_params
[] = {
379 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS
, NULL
),
380 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS
, NULL
),
381 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE
, NULL
),
382 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST
, NULL
, 0),
387 static const OSSL_PARAM
*rsa_gettable_params(void *provctx
)
392 static int rsa_validate(const void *keydata
, int selection
, int checktype
)
394 const RSA
*rsa
= keydata
;
397 if (!ossl_prov_is_running())
400 if ((selection
& RSA_POSSIBLE_SELECTIONS
) == 0)
401 return 1; /* nothing to validate */
403 /* If the whole key is selected, we do a pairwise validation */
404 if ((selection
& OSSL_KEYMGMT_SELECT_KEYPAIR
)
405 == OSSL_KEYMGMT_SELECT_KEYPAIR
) {
406 ok
= ok
&& ossl_rsa_validate_pairwise(rsa
);
408 if ((selection
& OSSL_KEYMGMT_SELECT_PRIVATE_KEY
) != 0)
409 ok
= ok
&& ossl_rsa_validate_private(rsa
);
410 if ((selection
& OSSL_KEYMGMT_SELECT_PUBLIC_KEY
) != 0)
411 ok
= ok
&& ossl_rsa_validate_public(rsa
);
417 OSSL_LIB_CTX
*libctx
;
427 RSA_PSS_PARAMS_30 pss_params
;
428 int pss_defaults_set
;
430 /* For generation callback */
434 #if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
435 /* ACVP test parameters */
436 OSSL_PARAM
*acvp_test_params
;
440 static int rsa_gencb(int p
, int n
, BN_GENCB
*cb
)
442 struct rsa_gen_ctx
*gctx
= BN_GENCB_get_arg(cb
);
443 OSSL_PARAM params
[] = { OSSL_PARAM_END
, OSSL_PARAM_END
, OSSL_PARAM_END
};
445 params
[0] = OSSL_PARAM_construct_int(OSSL_GEN_PARAM_POTENTIAL
, &p
);
446 params
[1] = OSSL_PARAM_construct_int(OSSL_GEN_PARAM_ITERATION
, &n
);
447 return gctx
->cb(params
, gctx
->cbarg
);
450 static void *gen_init(void *provctx
, int selection
, int rsa_type
,
451 const OSSL_PARAM params
[])
453 OSSL_LIB_CTX
*libctx
= PROV_LIBCTX_OF(provctx
);
454 struct rsa_gen_ctx
*gctx
= NULL
;
456 if (!ossl_prov_is_running())
459 if ((selection
& OSSL_KEYMGMT_SELECT_KEYPAIR
) == 0)
462 if ((gctx
= OPENSSL_zalloc(sizeof(*gctx
))) != NULL
) {
463 gctx
->libctx
= libctx
;
464 if ((gctx
->pub_exp
= BN_new()) == NULL
465 || !BN_set_word(gctx
->pub_exp
, RSA_F4
)) {
469 gctx
->primes
= RSA_DEFAULT_PRIME_NUM
;
470 gctx
->rsa_type
= rsa_type
;
475 if (!rsa_gen_set_params(gctx
, params
))
481 BN_free(gctx
->pub_exp
);
486 static void *rsa_gen_init(void *provctx
, int selection
,
487 const OSSL_PARAM params
[])
489 return gen_init(provctx
, selection
, RSA_FLAG_TYPE_RSA
, params
);
492 static void *rsapss_gen_init(void *provctx
, int selection
,
493 const OSSL_PARAM params
[])
495 return gen_init(provctx
, selection
, RSA_FLAG_TYPE_RSASSAPSS
, params
);
499 * This function is common for all RSA sub-types, to detect possible
500 * misuse, such as PSS parameters being passed when a plain RSA key
503 static int rsa_gen_set_params(void *genctx
, const OSSL_PARAM params
[])
505 struct rsa_gen_ctx
*gctx
= genctx
;
511 if ((p
= OSSL_PARAM_locate_const(params
, OSSL_PKEY_PARAM_RSA_BITS
)) != NULL
) {
512 if (!OSSL_PARAM_get_size_t(p
, &gctx
->nbits
))
514 if (gctx
->nbits
< RSA_MIN_MODULUS_BITS
) {
515 ERR_raise(ERR_LIB_PROV
, PROV_R_KEY_SIZE_TOO_SMALL
);
519 if ((p
= OSSL_PARAM_locate_const(params
, OSSL_PKEY_PARAM_RSA_PRIMES
)) != NULL
520 && !OSSL_PARAM_get_size_t(p
, &gctx
->primes
))
522 if ((p
= OSSL_PARAM_locate_const(params
, OSSL_PKEY_PARAM_RSA_E
)) != NULL
523 && !OSSL_PARAM_get_BN(p
, &gctx
->pub_exp
))
525 /* Only attempt to get PSS parameters when generating an RSA-PSS key */
526 if (gctx
->rsa_type
== RSA_FLAG_TYPE_RSASSAPSS
527 && !pss_params_fromdata(&gctx
->pss_params
, &gctx
->pss_defaults_set
, params
,
528 gctx
->rsa_type
, gctx
->libctx
))
530 #if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
531 /* Any ACVP test related parameters are copied into a params[] */
532 if (!ossl_rsa_acvp_test_gen_params_new(&gctx
->acvp_test_params
, params
))
538 #define rsa_gen_basic \
539 OSSL_PARAM_size_t(OSSL_PKEY_PARAM_RSA_BITS, NULL), \
540 OSSL_PARAM_size_t(OSSL_PKEY_PARAM_RSA_PRIMES, NULL), \
541 OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_E, NULL, 0)
544 * The following must be kept in sync with ossl_rsa_pss_params_30_fromdata()
545 * in crypto/rsa/rsa_backend.c
547 #define rsa_gen_pss \
548 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_RSA_DIGEST, NULL, 0), \
549 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_RSA_DIGEST_PROPS, NULL, 0), \
550 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_RSA_MASKGENFUNC, NULL, 0), \
551 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_RSA_MGF1_DIGEST, NULL, 0), \
552 OSSL_PARAM_int(OSSL_PKEY_PARAM_RSA_PSS_SALTLEN, NULL)
554 static const OSSL_PARAM
*rsa_gen_settable_params(ossl_unused
void *genctx
,
555 ossl_unused
void *provctx
)
557 static OSSL_PARAM settable
[] = {
565 static const OSSL_PARAM
*rsapss_gen_settable_params(ossl_unused
void *genctx
,
566 ossl_unused
void *provctx
)
568 static OSSL_PARAM settable
[] = {
577 static void *rsa_gen(void *genctx
, OSSL_CALLBACK
*osslcb
, void *cbarg
)
579 struct rsa_gen_ctx
*gctx
= genctx
;
580 RSA
*rsa
= NULL
, *rsa_tmp
= NULL
;
581 BN_GENCB
*gencb
= NULL
;
583 if (!ossl_prov_is_running() || gctx
== NULL
)
586 switch (gctx
->rsa_type
) {
587 case RSA_FLAG_TYPE_RSA
:
588 /* For plain RSA keys, PSS parameters must not be set */
589 if (!ossl_rsa_pss_params_30_is_unrestricted(&gctx
->pss_params
))
592 case RSA_FLAG_TYPE_RSASSAPSS
:
594 * For plain RSA-PSS keys, PSS parameters may be set but don't have
599 /* Unsupported RSA key sub-type... */
603 if ((rsa_tmp
= ossl_rsa_new_with_ctx(gctx
->libctx
)) == NULL
)
608 gencb
= BN_GENCB_new();
610 BN_GENCB_set(gencb
, rsa_gencb
, genctx
);
612 #if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
613 if (gctx
->acvp_test_params
!= NULL
) {
614 if (!ossl_rsa_acvp_test_set_params(rsa_tmp
, gctx
->acvp_test_params
))
619 if (!RSA_generate_multi_prime_key(rsa_tmp
,
620 (int)gctx
->nbits
, (int)gctx
->primes
,
621 gctx
->pub_exp
, gencb
))
624 if (!ossl_rsa_pss_params_30_copy(ossl_rsa_get0_pss_params_30(rsa_tmp
),
628 RSA_clear_flags(rsa_tmp
, RSA_FLAG_TYPE_MASK
);
629 RSA_set_flags(rsa_tmp
, gctx
->rsa_type
);
634 BN_GENCB_free(gencb
);
639 static void rsa_gen_cleanup(void *genctx
)
641 struct rsa_gen_ctx
*gctx
= genctx
;
645 #if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
646 ossl_rsa_acvp_test_gen_params_free(gctx
->acvp_test_params
);
647 gctx
->acvp_test_params
= NULL
;
649 BN_clear_free(gctx
->pub_exp
);
653 static void *common_load(const void *reference
, size_t reference_sz
,
654 int expected_rsa_type
)
658 if (ossl_prov_is_running() && reference_sz
== sizeof(rsa
)) {
659 /* The contents of the reference is the address to our object */
660 rsa
= *(RSA
**)reference
;
662 if (RSA_test_flags(rsa
, RSA_FLAG_TYPE_MASK
) != expected_rsa_type
)
665 /* We grabbed, so we detach it */
666 *(RSA
**)reference
= NULL
;
672 static void *rsa_load(const void *reference
, size_t reference_sz
)
674 return common_load(reference
, reference_sz
, RSA_FLAG_TYPE_RSA
);
677 static void *rsapss_load(const void *reference
, size_t reference_sz
)
679 return common_load(reference
, reference_sz
, RSA_FLAG_TYPE_RSASSAPSS
);
682 static void *rsa_dup(const void *keydata_from
, int selection
)
684 if (ossl_prov_is_running()
685 /* do not allow creating empty keys by duplication */
686 && (selection
& OSSL_KEYMGMT_SELECT_KEYPAIR
) != 0)
687 return ossl_rsa_dup(keydata_from
, selection
);
691 /* For any RSA key, we use the "RSA" algorithms regardless of sub-type. */
692 static const char *rsa_query_operation_name(int operation_id
)
697 const OSSL_DISPATCH ossl_rsa_keymgmt_functions
[] = {
698 { OSSL_FUNC_KEYMGMT_NEW
, (void (*)(void))rsa_newdata
},
699 { OSSL_FUNC_KEYMGMT_GEN_INIT
, (void (*)(void))rsa_gen_init
},
700 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS
,
701 (void (*)(void))rsa_gen_set_params
},
702 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS
,
703 (void (*)(void))rsa_gen_settable_params
},
704 { OSSL_FUNC_KEYMGMT_GEN
, (void (*)(void))rsa_gen
},
705 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP
, (void (*)(void))rsa_gen_cleanup
},
706 { OSSL_FUNC_KEYMGMT_LOAD
, (void (*)(void))rsa_load
},
707 { OSSL_FUNC_KEYMGMT_FREE
, (void (*)(void))rsa_freedata
},
708 { OSSL_FUNC_KEYMGMT_GET_PARAMS
, (void (*) (void))rsa_get_params
},
709 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS
, (void (*) (void))rsa_gettable_params
},
710 { OSSL_FUNC_KEYMGMT_HAS
, (void (*)(void))rsa_has
},
711 { OSSL_FUNC_KEYMGMT_MATCH
, (void (*)(void))rsa_match
},
712 { OSSL_FUNC_KEYMGMT_VALIDATE
, (void (*)(void))rsa_validate
},
713 { OSSL_FUNC_KEYMGMT_IMPORT
, (void (*)(void))rsa_import
},
714 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES
, (void (*)(void))rsa_import_types
},
715 { OSSL_FUNC_KEYMGMT_EXPORT
, (void (*)(void))rsa_export
},
716 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES
, (void (*)(void))rsa_export_types
},
717 { OSSL_FUNC_KEYMGMT_DUP
, (void (*)(void))rsa_dup
},
721 const OSSL_DISPATCH ossl_rsapss_keymgmt_functions
[] = {
722 { OSSL_FUNC_KEYMGMT_NEW
, (void (*)(void))rsapss_newdata
},
723 { OSSL_FUNC_KEYMGMT_GEN_INIT
, (void (*)(void))rsapss_gen_init
},
724 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS
, (void (*)(void))rsa_gen_set_params
},
725 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS
,
726 (void (*)(void))rsapss_gen_settable_params
},
727 { OSSL_FUNC_KEYMGMT_GEN
, (void (*)(void))rsa_gen
},
728 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP
, (void (*)(void))rsa_gen_cleanup
},
729 { OSSL_FUNC_KEYMGMT_LOAD
, (void (*)(void))rsapss_load
},
730 { OSSL_FUNC_KEYMGMT_FREE
, (void (*)(void))rsa_freedata
},
731 { OSSL_FUNC_KEYMGMT_GET_PARAMS
, (void (*) (void))rsa_get_params
},
732 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS
, (void (*) (void))rsa_gettable_params
},
733 { OSSL_FUNC_KEYMGMT_HAS
, (void (*)(void))rsa_has
},
734 { OSSL_FUNC_KEYMGMT_MATCH
, (void (*)(void))rsa_match
},
735 { OSSL_FUNC_KEYMGMT_VALIDATE
, (void (*)(void))rsa_validate
},
736 { OSSL_FUNC_KEYMGMT_IMPORT
, (void (*)(void))rsa_import
},
737 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES
, (void (*)(void))rsa_import_types
},
738 { OSSL_FUNC_KEYMGMT_EXPORT
, (void (*)(void))rsa_export
},
739 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES
, (void (*)(void))rsa_export_types
},
740 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME
,
741 (void (*)(void))rsa_query_operation_name
},
742 { OSSL_FUNC_KEYMGMT_DUP
, (void (*)(void))rsa_dup
},