xref: /openssl/include/crypto/rsa.h (revision 6dacee48)
1 /*
2  * Copyright 2019-2024 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 #ifndef OSSL_INTERNAL_RSA_H
11 # define OSSL_INTERNAL_RSA_H
12 # pragma once
13 
14 # include <openssl/core.h>
15 # include <openssl/rsa.h>
16 # include "crypto/types.h"
17 
18 #define RSA_MIN_MODULUS_BITS    512
19 
20 typedef struct rsa_pss_params_30_st {
21     int hash_algorithm_nid;
22     struct {
23         int algorithm_nid;       /* Currently always NID_mgf1 */
24         int hash_algorithm_nid;
25     } mask_gen;
26     int salt_len;
27     int trailer_field;
28 } RSA_PSS_PARAMS_30;
29 
30 RSA_PSS_PARAMS_30 *ossl_rsa_get0_pss_params_30(RSA *r);
31 int ossl_rsa_pss_params_30_set_defaults(RSA_PSS_PARAMS_30 *rsa_pss_params);
32 int ossl_rsa_pss_params_30_copy(RSA_PSS_PARAMS_30 *to,
33                                 const RSA_PSS_PARAMS_30 *from);
34 int ossl_rsa_pss_params_30_is_unrestricted(const RSA_PSS_PARAMS_30 *rsa_pss_params);
35 int ossl_rsa_pss_params_30_set_hashalg(RSA_PSS_PARAMS_30 *rsa_pss_params,
36                                        int hashalg_nid);
37 int ossl_rsa_pss_params_30_set_maskgenhashalg(RSA_PSS_PARAMS_30 *rsa_pss_params,
38                                               int maskgenhashalg_nid);
39 int ossl_rsa_pss_params_30_set_saltlen(RSA_PSS_PARAMS_30 *rsa_pss_params,
40                                        int saltlen);
41 int ossl_rsa_pss_params_30_set_trailerfield(RSA_PSS_PARAMS_30 *rsa_pss_params,
42                                             int trailerfield);
43 int ossl_rsa_pss_params_30_hashalg(const RSA_PSS_PARAMS_30 *rsa_pss_params);
44 int ossl_rsa_pss_params_30_maskgenalg(const RSA_PSS_PARAMS_30 *rsa_pss_params);
45 int ossl_rsa_pss_params_30_maskgenhashalg(const RSA_PSS_PARAMS_30 *rsa_pss_params);
46 int ossl_rsa_pss_params_30_saltlen(const RSA_PSS_PARAMS_30 *rsa_pss_params);
47 int ossl_rsa_pss_params_30_trailerfield(const RSA_PSS_PARAMS_30 *rsa_pss_params);
48 
49 int ossl_rsa_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
50                                    const EVP_MD *Hash, const EVP_MD *mgf1Hash,
51                                    const unsigned char *EM, int *sLenOut);
52 int ossl_rsa_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
53                                         const unsigned char *mHash,
54                                         const EVP_MD *Hash, const EVP_MD *mgf1Hash,
55                                         int *sLenOut);
56 
57 const char *ossl_rsa_mgf_nid2name(int mgf);
58 int ossl_rsa_oaeppss_md2nid(const EVP_MD *md);
59 const char *ossl_rsa_oaeppss_nid2name(int md);
60 
61 RSA *ossl_rsa_new_with_ctx(OSSL_LIB_CTX *libctx);
62 OSSL_LIB_CTX *ossl_rsa_get0_libctx(RSA *r);
63 void ossl_rsa_set0_libctx(RSA *r, OSSL_LIB_CTX *libctx);
64 
65 int ossl_rsa_set0_all_params(RSA *r, STACK_OF(BIGNUM) *primes,
66                              STACK_OF(BIGNUM) *exps,
67                              STACK_OF(BIGNUM) *coeffs);
68 int ossl_rsa_get0_all_params(RSA *r, STACK_OF(BIGNUM_const) *primes,
69                              STACK_OF(BIGNUM_const) *exps,
70                              STACK_OF(BIGNUM_const) *coeffs);
71 int ossl_rsa_is_foreign(const RSA *rsa);
72 RSA *ossl_rsa_dup(const RSA *rsa, int selection);
73 
74 int ossl_rsa_todata(RSA *rsa, OSSL_PARAM_BLD *bld, OSSL_PARAM params[],
75                     int include_private);
76 int ossl_rsa_fromdata(RSA *rsa, const OSSL_PARAM params[], int include_private);
77 int ossl_rsa_pss_params_30_todata(const RSA_PSS_PARAMS_30 *pss,
78                                   OSSL_PARAM_BLD *bld, OSSL_PARAM params[]);
79 int ossl_rsa_pss_params_30_fromdata(RSA_PSS_PARAMS_30 *pss_params,
80                                     int *defaults_set,
81                                     const OSSL_PARAM params[],
82                                     OSSL_LIB_CTX *libctx);
83 int ossl_rsa_set0_pss_params(RSA *r, RSA_PSS_PARAMS *pss);
84 int ossl_rsa_pss_get_param_unverified(const RSA_PSS_PARAMS *pss,
85                                       const EVP_MD **pmd, const EVP_MD **pmgf1md,
86                                       int *psaltlen, int *ptrailerField);
87 RSA_PSS_PARAMS *ossl_rsa_pss_decode(const X509_ALGOR *alg);
88 int ossl_rsa_param_decode(RSA *rsa, const X509_ALGOR *alg);
89 RSA *ossl_rsa_key_from_pkcs8(const PKCS8_PRIV_KEY_INFO *p8inf,
90                              OSSL_LIB_CTX *libctx, const char *propq);
91 
92 int ossl_rsa_padding_check_PKCS1_type_2(OSSL_LIB_CTX *ctx,
93                                         unsigned char *to, int tlen,
94                                         const unsigned char *from, int flen,
95                                         int num, unsigned char *kdk);
96 int ossl_rsa_padding_check_PKCS1_type_2_TLS(OSSL_LIB_CTX *ctx, unsigned char *to,
97                                             size_t tlen,
98                                             const unsigned char *from,
99                                             size_t flen, int client_version,
100                                             int alt_version);
101 int ossl_rsa_padding_add_PKCS1_OAEP_mgf1_ex(OSSL_LIB_CTX *libctx,
102                                             unsigned char *to, int tlen,
103                                             const unsigned char *from, int flen,
104                                             const unsigned char *param,
105                                             int plen, const EVP_MD *md,
106                                             const EVP_MD *mgf1md);
107 
108 int ossl_rsa_validate_public(const RSA *key);
109 int ossl_rsa_validate_private(const RSA *key);
110 int ossl_rsa_validate_pairwise(const RSA *key);
111 
112 int ossl_rsa_verify(int dtype, const unsigned char *m,
113                     unsigned int m_len, unsigned char *rm,
114                     size_t *prm_len, const unsigned char *sigbuf,
115                     size_t siglen, RSA *rsa);
116 
117 const unsigned char *ossl_rsa_digestinfo_encoding(int md_nid, size_t *len);
118 
119 extern const char *ossl_rsa_mp_factor_names[];
120 extern const char *ossl_rsa_mp_exp_names[];
121 extern const char *ossl_rsa_mp_coeff_names[];
122 
123 ASN1_STRING *ossl_rsa_ctx_to_pss_string(EVP_PKEY_CTX *pkctx);
124 int ossl_rsa_pss_to_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pkctx,
125                         const X509_ALGOR *sigalg, EVP_PKEY *pkey);
126 
127 # if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
128 int ossl_rsa_acvp_test_gen_params_new(OSSL_PARAM **dst, const OSSL_PARAM src[]);
129 void ossl_rsa_acvp_test_gen_params_free(OSSL_PARAM *dst);
130 
131 int ossl_rsa_acvp_test_set_params(RSA *r, const OSSL_PARAM params[]);
132 int ossl_rsa_acvp_test_get_params(RSA *r, OSSL_PARAM params[]);
133 typedef struct rsa_acvp_test_st RSA_ACVP_TEST;
134 void ossl_rsa_acvp_test_free(RSA_ACVP_TEST *t);
135 # else
136 # define RSA_ACVP_TEST void
137 # endif
138 int ossl_rsa_check_factors(RSA *r);
139 
140 RSA *evp_pkey_get1_RSA_PSS(EVP_PKEY *pkey);
141 #endif
142