mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
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745 lines
26 KiB
C
745 lines
26 KiB
C
/*
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* Copyright 2019-2023 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* RSA low level APIs are deprecated for public use, but still ok for
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* internal use.
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*/
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#include "internal/deprecated.h"
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#include <openssl/core_dispatch.h>
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#include <openssl/core_names.h>
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#include <openssl/bn.h>
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#include <openssl/err.h>
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#include <openssl/rsa.h>
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#include <openssl/evp.h>
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#include <openssl/proverr.h>
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#include "prov/implementations.h"
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#include "prov/providercommon.h"
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#include "prov/provider_ctx.h"
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#include "crypto/rsa.h"
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#include "crypto/cryptlib.h"
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#include "internal/param_build_set.h"
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static OSSL_FUNC_keymgmt_new_fn rsa_newdata;
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static OSSL_FUNC_keymgmt_new_fn rsapss_newdata;
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static OSSL_FUNC_keymgmt_gen_init_fn rsa_gen_init;
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static OSSL_FUNC_keymgmt_gen_init_fn rsapss_gen_init;
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static OSSL_FUNC_keymgmt_gen_set_params_fn rsa_gen_set_params;
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static OSSL_FUNC_keymgmt_gen_settable_params_fn rsa_gen_settable_params;
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static OSSL_FUNC_keymgmt_gen_settable_params_fn rsapss_gen_settable_params;
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static OSSL_FUNC_keymgmt_gen_fn rsa_gen;
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static OSSL_FUNC_keymgmt_gen_cleanup_fn rsa_gen_cleanup;
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static OSSL_FUNC_keymgmt_load_fn rsa_load;
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static OSSL_FUNC_keymgmt_load_fn rsapss_load;
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static OSSL_FUNC_keymgmt_free_fn rsa_freedata;
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static OSSL_FUNC_keymgmt_get_params_fn rsa_get_params;
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static OSSL_FUNC_keymgmt_gettable_params_fn rsa_gettable_params;
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static OSSL_FUNC_keymgmt_has_fn rsa_has;
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static OSSL_FUNC_keymgmt_match_fn rsa_match;
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static OSSL_FUNC_keymgmt_validate_fn rsa_validate;
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static OSSL_FUNC_keymgmt_import_fn rsa_import;
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static OSSL_FUNC_keymgmt_import_types_fn rsa_import_types;
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static OSSL_FUNC_keymgmt_export_fn rsa_export;
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static OSSL_FUNC_keymgmt_export_types_fn rsa_export_types;
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static OSSL_FUNC_keymgmt_query_operation_name_fn rsa_query_operation_name;
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static OSSL_FUNC_keymgmt_dup_fn rsa_dup;
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#define RSA_DEFAULT_MD "SHA256"
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#define RSA_PSS_DEFAULT_MD OSSL_DIGEST_NAME_SHA1
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#define RSA_POSSIBLE_SELECTIONS \
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(OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS)
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DEFINE_STACK_OF(BIGNUM)
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DEFINE_SPECIAL_STACK_OF_CONST(BIGNUM_const, BIGNUM)
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static int pss_params_fromdata(RSA_PSS_PARAMS_30 *pss_params, int *defaults_set,
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const OSSL_PARAM params[], int rsa_type,
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OSSL_LIB_CTX *libctx)
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{
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if (!ossl_rsa_pss_params_30_fromdata(pss_params, defaults_set,
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params, libctx))
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return 0;
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/* If not a PSS type RSA, sending us PSS parameters is wrong */
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if (rsa_type != RSA_FLAG_TYPE_RSASSAPSS
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&& !ossl_rsa_pss_params_30_is_unrestricted(pss_params))
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return 0;
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return 1;
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}
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static void *rsa_newdata(void *provctx)
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{
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OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx);
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RSA *rsa;
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if (!ossl_prov_is_running())
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return NULL;
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rsa = ossl_rsa_new_with_ctx(libctx);
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if (rsa != NULL) {
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RSA_clear_flags(rsa, RSA_FLAG_TYPE_MASK);
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RSA_set_flags(rsa, RSA_FLAG_TYPE_RSA);
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}
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return rsa;
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}
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static void *rsapss_newdata(void *provctx)
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{
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OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx);
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RSA *rsa;
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if (!ossl_prov_is_running())
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return NULL;
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rsa = ossl_rsa_new_with_ctx(libctx);
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if (rsa != NULL) {
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RSA_clear_flags(rsa, RSA_FLAG_TYPE_MASK);
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RSA_set_flags(rsa, RSA_FLAG_TYPE_RSASSAPSS);
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}
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return rsa;
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}
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static void rsa_freedata(void *keydata)
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{
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RSA_free(keydata);
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}
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static int rsa_has(const void *keydata, int selection)
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{
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const RSA *rsa = keydata;
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int ok = 1;
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if (rsa == NULL || !ossl_prov_is_running())
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return 0;
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if ((selection & RSA_POSSIBLE_SELECTIONS) == 0)
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return 1; /* the selection is not missing */
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/* OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS are always available even if empty */
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if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
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ok = ok && (RSA_get0_n(rsa) != NULL);
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if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
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ok = ok && (RSA_get0_e(rsa) != NULL);
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if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
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ok = ok && (RSA_get0_d(rsa) != NULL);
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return ok;
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}
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static int rsa_match(const void *keydata1, const void *keydata2, int selection)
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{
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const RSA *rsa1 = keydata1;
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const RSA *rsa2 = keydata2;
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int ok = 1;
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if (!ossl_prov_is_running())
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return 0;
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/* There is always an |e| */
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ok = ok && BN_cmp(RSA_get0_e(rsa1), RSA_get0_e(rsa2)) == 0;
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if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
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int key_checked = 0;
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if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
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const BIGNUM *pa = RSA_get0_n(rsa1);
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const BIGNUM *pb = RSA_get0_n(rsa2);
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if (pa != NULL && pb != NULL) {
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ok = ok && BN_cmp(pa, pb) == 0;
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key_checked = 1;
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}
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}
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if (!key_checked
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&& (selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) {
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const BIGNUM *pa = RSA_get0_d(rsa1);
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const BIGNUM *pb = RSA_get0_d(rsa2);
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if (pa != NULL && pb != NULL) {
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ok = ok && BN_cmp(pa, pb) == 0;
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key_checked = 1;
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}
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}
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ok = ok && key_checked;
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}
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return ok;
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}
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static int rsa_import(void *keydata, int selection, const OSSL_PARAM params[])
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{
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RSA *rsa = keydata;
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int rsa_type;
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int ok = 1;
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int pss_defaults_set = 0;
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if (!ossl_prov_is_running() || rsa == NULL)
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return 0;
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if ((selection & RSA_POSSIBLE_SELECTIONS) == 0)
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return 0;
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rsa_type = RSA_test_flags(rsa, RSA_FLAG_TYPE_MASK);
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if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
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ok = ok && pss_params_fromdata(ossl_rsa_get0_pss_params_30(rsa),
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&pss_defaults_set,
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params, rsa_type,
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ossl_rsa_get0_libctx(rsa));
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if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
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int include_private =
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selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
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ok = ok && ossl_rsa_fromdata(rsa, params, include_private);
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}
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return ok;
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}
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static int rsa_export(void *keydata, int selection,
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OSSL_CALLBACK *param_callback, void *cbarg)
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{
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RSA *rsa = keydata;
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const RSA_PSS_PARAMS_30 *pss_params = ossl_rsa_get0_pss_params_30(rsa);
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OSSL_PARAM_BLD *tmpl;
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OSSL_PARAM *params = NULL;
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int ok = 1;
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if (!ossl_prov_is_running() || rsa == NULL)
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return 0;
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if ((selection & RSA_POSSIBLE_SELECTIONS) == 0)
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return 0;
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tmpl = OSSL_PARAM_BLD_new();
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if (tmpl == NULL)
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return 0;
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if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
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ok = ok && (ossl_rsa_pss_params_30_is_unrestricted(pss_params)
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|| ossl_rsa_pss_params_30_todata(pss_params, tmpl, NULL));
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if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
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int include_private =
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selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
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ok = ok && ossl_rsa_todata(rsa, tmpl, NULL, include_private);
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}
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if (!ok || (params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL) {
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ok = 0;
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goto err;
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}
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ok = param_callback(params, cbarg);
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OSSL_PARAM_free(params);
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err:
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OSSL_PARAM_BLD_free(tmpl);
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return ok;
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}
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#ifdef FIPS_MODULE
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/* In fips mode there are no multi-primes. */
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# define RSA_KEY_MP_TYPES() \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR1, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR2, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT1, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT2, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT1, NULL, 0),
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#else
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/*
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* We allow up to 10 prime factors (starting with p, q).
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* NOTE: there is only 9 OSSL_PKEY_PARAM_RSA_COEFFICIENT
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*/
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# define RSA_KEY_MP_TYPES() \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR1, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR2, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR3, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR4, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR5, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR6, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR7, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR8, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR9, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_FACTOR10, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT1, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT2, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT3, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT4, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT5, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT6, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT7, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT8, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT9, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_EXPONENT10, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT1, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT2, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT3, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT4, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT5, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT6, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT7, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT8, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_COEFFICIENT9, NULL, 0),
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#endif
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#define RSA_KEY_TYPES() \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_N, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_E, NULL, 0), \
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OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_D, NULL, 0), \
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RSA_KEY_MP_TYPES()
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/*
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* This provider can export everything in an RSA key, so we use the exact
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* same type description for export as for import. Other providers might
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* choose to import full keys, but only export the public parts, and will
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* therefore have the importkey_types and importkey_types functions return
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* different arrays.
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*/
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static const OSSL_PARAM rsa_key_types[] = {
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RSA_KEY_TYPES()
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OSSL_PARAM_END
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};
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/*
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* We lied about the amount of factors, exponents and coefficients, the
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* export and import functions can really deal with an infinite amount
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* of these numbers. However, RSA keys with too many primes are futile,
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* so we at least pretend to have some limits.
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*/
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static const OSSL_PARAM *rsa_imexport_types(int selection)
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{
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if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
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return rsa_key_types;
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return NULL;
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}
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static const OSSL_PARAM *rsa_import_types(int selection)
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{
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return rsa_imexport_types(selection);
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}
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static const OSSL_PARAM *rsa_export_types(int selection)
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{
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return rsa_imexport_types(selection);
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}
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static int rsa_get_params(void *key, OSSL_PARAM params[])
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{
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RSA *rsa = key;
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const RSA_PSS_PARAMS_30 *pss_params = ossl_rsa_get0_pss_params_30(rsa);
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int rsa_type = RSA_test_flags(rsa, RSA_FLAG_TYPE_MASK);
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OSSL_PARAM *p;
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int empty = RSA_get0_n(rsa) == NULL;
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if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
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&& (empty || !OSSL_PARAM_set_int(p, RSA_bits(rsa))))
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return 0;
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if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL
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&& (empty || !OSSL_PARAM_set_int(p, RSA_security_bits(rsa))))
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return 0;
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if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
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&& (empty || !OSSL_PARAM_set_int(p, RSA_size(rsa))))
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return 0;
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/*
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* For restricted RSA-PSS keys, we ignore the default digest request.
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* With RSA-OAEP keys, this may need to be amended.
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*/
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if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
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&& (rsa_type != RSA_FLAG_TYPE_RSASSAPSS
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|| ossl_rsa_pss_params_30_is_unrestricted(pss_params))) {
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if (!OSSL_PARAM_set_utf8_string(p, RSA_DEFAULT_MD))
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return 0;
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}
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/*
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* For non-RSA-PSS keys, we ignore the mandatory digest request.
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* With RSA-OAEP keys, this may need to be amended.
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*/
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if ((p = OSSL_PARAM_locate(params,
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OSSL_PKEY_PARAM_MANDATORY_DIGEST)) != NULL
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&& rsa_type == RSA_FLAG_TYPE_RSASSAPSS
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&& !ossl_rsa_pss_params_30_is_unrestricted(pss_params)) {
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const char *mdname =
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ossl_rsa_oaeppss_nid2name(ossl_rsa_pss_params_30_hashalg(pss_params));
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if (mdname == NULL || !OSSL_PARAM_set_utf8_string(p, mdname))
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return 0;
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}
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return (rsa_type != RSA_FLAG_TYPE_RSASSAPSS
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|| ossl_rsa_pss_params_30_todata(pss_params, NULL, params))
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&& ossl_rsa_todata(rsa, NULL, params, 1);
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}
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static const OSSL_PARAM rsa_params[] = {
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OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
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OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
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OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
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OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
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RSA_KEY_TYPES()
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OSSL_PARAM_END
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};
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static const OSSL_PARAM *rsa_gettable_params(void *provctx)
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{
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return rsa_params;
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}
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static int rsa_validate(const void *keydata, int selection, int checktype)
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{
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const RSA *rsa = keydata;
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int ok = 1;
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if (!ossl_prov_is_running())
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return 0;
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if ((selection & RSA_POSSIBLE_SELECTIONS) == 0)
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return 1; /* nothing to validate */
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/* If the whole key is selected, we do a pairwise validation */
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if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR)
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== OSSL_KEYMGMT_SELECT_KEYPAIR) {
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ok = ok && ossl_rsa_validate_pairwise(rsa);
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} else {
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if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
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ok = ok && ossl_rsa_validate_private(rsa);
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if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
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ok = ok && ossl_rsa_validate_public(rsa);
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}
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return ok;
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}
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struct rsa_gen_ctx {
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OSSL_LIB_CTX *libctx;
|
|
const char *propq;
|
|
|
|
int rsa_type;
|
|
|
|
size_t nbits;
|
|
BIGNUM *pub_exp;
|
|
size_t primes;
|
|
|
|
/* For PSS */
|
|
RSA_PSS_PARAMS_30 pss_params;
|
|
int pss_defaults_set;
|
|
|
|
/* For generation callback */
|
|
OSSL_CALLBACK *cb;
|
|
void *cbarg;
|
|
|
|
#if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
|
|
/* ACVP test parameters */
|
|
OSSL_PARAM *acvp_test_params;
|
|
#endif
|
|
};
|
|
|
|
static int rsa_gencb(int p, int n, BN_GENCB *cb)
|
|
{
|
|
struct rsa_gen_ctx *gctx = BN_GENCB_get_arg(cb);
|
|
OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END, OSSL_PARAM_END };
|
|
|
|
params[0] = OSSL_PARAM_construct_int(OSSL_GEN_PARAM_POTENTIAL, &p);
|
|
params[1] = OSSL_PARAM_construct_int(OSSL_GEN_PARAM_ITERATION, &n);
|
|
return gctx->cb(params, gctx->cbarg);
|
|
}
|
|
|
|
static void *gen_init(void *provctx, int selection, int rsa_type,
|
|
const OSSL_PARAM params[])
|
|
{
|
|
OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx);
|
|
struct rsa_gen_ctx *gctx = NULL;
|
|
|
|
if (!ossl_prov_is_running())
|
|
return NULL;
|
|
|
|
if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0)
|
|
return NULL;
|
|
|
|
if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
|
|
gctx->libctx = libctx;
|
|
if ((gctx->pub_exp = BN_new()) == NULL
|
|
|| !BN_set_word(gctx->pub_exp, RSA_F4)) {
|
|
goto err;
|
|
}
|
|
gctx->nbits = 2048;
|
|
gctx->primes = RSA_DEFAULT_PRIME_NUM;
|
|
gctx->rsa_type = rsa_type;
|
|
} else {
|
|
goto err;
|
|
}
|
|
|
|
if (!rsa_gen_set_params(gctx, params))
|
|
goto err;
|
|
return gctx;
|
|
|
|
err:
|
|
if (gctx != NULL)
|
|
BN_free(gctx->pub_exp);
|
|
OPENSSL_free(gctx);
|
|
return NULL;
|
|
}
|
|
|
|
static void *rsa_gen_init(void *provctx, int selection,
|
|
const OSSL_PARAM params[])
|
|
{
|
|
return gen_init(provctx, selection, RSA_FLAG_TYPE_RSA, params);
|
|
}
|
|
|
|
static void *rsapss_gen_init(void *provctx, int selection,
|
|
const OSSL_PARAM params[])
|
|
{
|
|
return gen_init(provctx, selection, RSA_FLAG_TYPE_RSASSAPSS, params);
|
|
}
|
|
|
|
/*
|
|
* This function is common for all RSA sub-types, to detect possible
|
|
* misuse, such as PSS parameters being passed when a plain RSA key
|
|
* is generated.
|
|
*/
|
|
static int rsa_gen_set_params(void *genctx, const OSSL_PARAM params[])
|
|
{
|
|
struct rsa_gen_ctx *gctx = genctx;
|
|
const OSSL_PARAM *p;
|
|
|
|
if (params == NULL)
|
|
return 1;
|
|
|
|
if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_BITS)) != NULL) {
|
|
if (!OSSL_PARAM_get_size_t(p, &gctx->nbits))
|
|
return 0;
|
|
if (gctx->nbits < RSA_MIN_MODULUS_BITS) {
|
|
ERR_raise(ERR_LIB_PROV, PROV_R_KEY_SIZE_TOO_SMALL);
|
|
return 0;
|
|
}
|
|
}
|
|
if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_PRIMES)) != NULL
|
|
&& !OSSL_PARAM_get_size_t(p, &gctx->primes))
|
|
return 0;
|
|
if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_RSA_E)) != NULL
|
|
&& !OSSL_PARAM_get_BN(p, &gctx->pub_exp))
|
|
return 0;
|
|
/* Only attempt to get PSS parameters when generating an RSA-PSS key */
|
|
if (gctx->rsa_type == RSA_FLAG_TYPE_RSASSAPSS
|
|
&& !pss_params_fromdata(&gctx->pss_params, &gctx->pss_defaults_set, params,
|
|
gctx->rsa_type, gctx->libctx))
|
|
return 0;
|
|
#if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
|
|
/* Any ACVP test related parameters are copied into a params[] */
|
|
if (!ossl_rsa_acvp_test_gen_params_new(&gctx->acvp_test_params, params))
|
|
return 0;
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
#define rsa_gen_basic \
|
|
OSSL_PARAM_size_t(OSSL_PKEY_PARAM_RSA_BITS, NULL), \
|
|
OSSL_PARAM_size_t(OSSL_PKEY_PARAM_RSA_PRIMES, NULL), \
|
|
OSSL_PARAM_BN(OSSL_PKEY_PARAM_RSA_E, NULL, 0)
|
|
|
|
/*
|
|
* The following must be kept in sync with ossl_rsa_pss_params_30_fromdata()
|
|
* in crypto/rsa/rsa_backend.c
|
|
*/
|
|
#define rsa_gen_pss \
|
|
OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_RSA_DIGEST, NULL, 0), \
|
|
OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_RSA_DIGEST_PROPS, NULL, 0), \
|
|
OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_RSA_MASKGENFUNC, NULL, 0), \
|
|
OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_RSA_MGF1_DIGEST, NULL, 0), \
|
|
OSSL_PARAM_int(OSSL_PKEY_PARAM_RSA_PSS_SALTLEN, NULL)
|
|
|
|
static const OSSL_PARAM *rsa_gen_settable_params(ossl_unused void *genctx,
|
|
ossl_unused void *provctx)
|
|
{
|
|
static OSSL_PARAM settable[] = {
|
|
rsa_gen_basic,
|
|
OSSL_PARAM_END
|
|
};
|
|
|
|
return settable;
|
|
}
|
|
|
|
static const OSSL_PARAM *rsapss_gen_settable_params(ossl_unused void *genctx,
|
|
ossl_unused void *provctx)
|
|
{
|
|
static OSSL_PARAM settable[] = {
|
|
rsa_gen_basic,
|
|
rsa_gen_pss,
|
|
OSSL_PARAM_END
|
|
};
|
|
|
|
return settable;
|
|
}
|
|
|
|
static void *rsa_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
|
|
{
|
|
struct rsa_gen_ctx *gctx = genctx;
|
|
RSA *rsa = NULL, *rsa_tmp = NULL;
|
|
BN_GENCB *gencb = NULL;
|
|
|
|
if (!ossl_prov_is_running() || gctx == NULL)
|
|
return NULL;
|
|
|
|
switch (gctx->rsa_type) {
|
|
case RSA_FLAG_TYPE_RSA:
|
|
/* For plain RSA keys, PSS parameters must not be set */
|
|
if (!ossl_rsa_pss_params_30_is_unrestricted(&gctx->pss_params))
|
|
goto err;
|
|
break;
|
|
case RSA_FLAG_TYPE_RSASSAPSS:
|
|
/*
|
|
* For plain RSA-PSS keys, PSS parameters may be set but don't have
|
|
* to, so not check.
|
|
*/
|
|
break;
|
|
default:
|
|
/* Unsupported RSA key sub-type... */
|
|
return NULL;
|
|
}
|
|
|
|
if ((rsa_tmp = ossl_rsa_new_with_ctx(gctx->libctx)) == NULL)
|
|
return NULL;
|
|
|
|
gctx->cb = osslcb;
|
|
gctx->cbarg = cbarg;
|
|
gencb = BN_GENCB_new();
|
|
if (gencb != NULL)
|
|
BN_GENCB_set(gencb, rsa_gencb, genctx);
|
|
|
|
#if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
|
|
if (gctx->acvp_test_params != NULL) {
|
|
if (!ossl_rsa_acvp_test_set_params(rsa_tmp, gctx->acvp_test_params))
|
|
goto err;
|
|
}
|
|
#endif
|
|
|
|
if (!RSA_generate_multi_prime_key(rsa_tmp,
|
|
(int)gctx->nbits, (int)gctx->primes,
|
|
gctx->pub_exp, gencb))
|
|
goto err;
|
|
|
|
if (!ossl_rsa_pss_params_30_copy(ossl_rsa_get0_pss_params_30(rsa_tmp),
|
|
&gctx->pss_params))
|
|
goto err;
|
|
|
|
RSA_clear_flags(rsa_tmp, RSA_FLAG_TYPE_MASK);
|
|
RSA_set_flags(rsa_tmp, gctx->rsa_type);
|
|
|
|
rsa = rsa_tmp;
|
|
rsa_tmp = NULL;
|
|
err:
|
|
BN_GENCB_free(gencb);
|
|
RSA_free(rsa_tmp);
|
|
return rsa;
|
|
}
|
|
|
|
static void rsa_gen_cleanup(void *genctx)
|
|
{
|
|
struct rsa_gen_ctx *gctx = genctx;
|
|
|
|
if (gctx == NULL)
|
|
return;
|
|
#if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
|
|
ossl_rsa_acvp_test_gen_params_free(gctx->acvp_test_params);
|
|
gctx->acvp_test_params = NULL;
|
|
#endif
|
|
BN_clear_free(gctx->pub_exp);
|
|
OPENSSL_free(gctx);
|
|
}
|
|
|
|
static void *common_load(const void *reference, size_t reference_sz,
|
|
int expected_rsa_type)
|
|
{
|
|
RSA *rsa = NULL;
|
|
|
|
if (ossl_prov_is_running() && reference_sz == sizeof(rsa)) {
|
|
/* The contents of the reference is the address to our object */
|
|
rsa = *(RSA **)reference;
|
|
|
|
if (RSA_test_flags(rsa, RSA_FLAG_TYPE_MASK) != expected_rsa_type)
|
|
return NULL;
|
|
|
|
/* We grabbed, so we detach it */
|
|
*(RSA **)reference = NULL;
|
|
return rsa;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void *rsa_load(const void *reference, size_t reference_sz)
|
|
{
|
|
return common_load(reference, reference_sz, RSA_FLAG_TYPE_RSA);
|
|
}
|
|
|
|
static void *rsapss_load(const void *reference, size_t reference_sz)
|
|
{
|
|
return common_load(reference, reference_sz, RSA_FLAG_TYPE_RSASSAPSS);
|
|
}
|
|
|
|
static void *rsa_dup(const void *keydata_from, int selection)
|
|
{
|
|
if (ossl_prov_is_running()
|
|
/* do not allow creating empty keys by duplication */
|
|
&& (selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
|
|
return ossl_rsa_dup(keydata_from, selection);
|
|
return NULL;
|
|
}
|
|
|
|
/* For any RSA key, we use the "RSA" algorithms regardless of sub-type. */
|
|
static const char *rsa_query_operation_name(int operation_id)
|
|
{
|
|
return "RSA";
|
|
}
|
|
|
|
const OSSL_DISPATCH ossl_rsa_keymgmt_functions[] = {
|
|
{ OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))rsa_newdata },
|
|
{ OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))rsa_gen_init },
|
|
{ OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS,
|
|
(void (*)(void))rsa_gen_set_params },
|
|
{ OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
|
|
(void (*)(void))rsa_gen_settable_params },
|
|
{ OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))rsa_gen },
|
|
{ OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))rsa_gen_cleanup },
|
|
{ OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))rsa_load },
|
|
{ OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))rsa_freedata },
|
|
{ OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))rsa_get_params },
|
|
{ OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))rsa_gettable_params },
|
|
{ OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))rsa_has },
|
|
{ OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))rsa_match },
|
|
{ OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))rsa_validate },
|
|
{ OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))rsa_import },
|
|
{ OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))rsa_import_types },
|
|
{ OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))rsa_export },
|
|
{ OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))rsa_export_types },
|
|
{ OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))rsa_dup },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
const OSSL_DISPATCH ossl_rsapss_keymgmt_functions[] = {
|
|
{ OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))rsapss_newdata },
|
|
{ OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))rsapss_gen_init },
|
|
{ OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))rsa_gen_set_params },
|
|
{ OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
|
|
(void (*)(void))rsapss_gen_settable_params },
|
|
{ OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))rsa_gen },
|
|
{ OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))rsa_gen_cleanup },
|
|
{ OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))rsapss_load },
|
|
{ OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))rsa_freedata },
|
|
{ OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))rsa_get_params },
|
|
{ OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))rsa_gettable_params },
|
|
{ OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))rsa_has },
|
|
{ OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))rsa_match },
|
|
{ OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))rsa_validate },
|
|
{ OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))rsa_import },
|
|
{ OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))rsa_import_types },
|
|
{ OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))rsa_export },
|
|
{ OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))rsa_export_types },
|
|
{ OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
|
|
(void (*)(void))rsa_query_operation_name },
|
|
{ OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))rsa_dup },
|
|
{ 0, NULL }
|
|
};
|