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0f113f3e | 1 | /* |
c13d2ab4 | 2 | * Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved. |
5da2f69f | 3 | * |
4a8b0c55 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
aa6bb135 RS |
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 | |
5da2f69f DSH |
8 | */ |
9 | ||
7638370c RL |
10 | /* EVP_MD_CTX related stuff */ |
11 | ||
ff64702b MC |
12 | #include <openssl/core_numbers.h> |
13 | ||
e870791a SL |
14 | #define EVP_CTRL_RET_UNSUPPORTED -1 |
15 | ||
16 | ||
7638370c | 17 | struct evp_md_ctx_st { |
b7c913c8 | 18 | const EVP_MD *reqdigest; /* The original requested digest */ |
7638370c RL |
19 | const EVP_MD *digest; |
20 | ENGINE *engine; /* functional reference if 'digest' is | |
21 | * ENGINE-provided */ | |
22 | unsigned long flags; | |
23 | void *md_data; | |
24 | /* Public key context for sign/verify */ | |
25 | EVP_PKEY_CTX *pctx; | |
26 | /* Update function: usually copied from EVP_MD */ | |
27 | int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count); | |
8c8cf0d9 MC |
28 | |
29 | /* Provider ctx */ | |
30 | void *provctx; | |
31 | EVP_MD *fetched_digest; | |
7638370c RL |
32 | } /* EVP_MD_CTX */ ; |
33 | ||
8baf9968 RL |
34 | struct evp_cipher_ctx_st { |
35 | const EVP_CIPHER *cipher; | |
36 | ENGINE *engine; /* functional reference if 'cipher' is | |
37 | * ENGINE-provided */ | |
38 | int encrypt; /* encrypt or decrypt */ | |
39 | int buf_len; /* number we have left */ | |
40 | unsigned char oiv[EVP_MAX_IV_LENGTH]; /* original iv */ | |
41 | unsigned char iv[EVP_MAX_IV_LENGTH]; /* working iv */ | |
42 | unsigned char buf[EVP_MAX_BLOCK_LENGTH]; /* saved partial block */ | |
43 | int num; /* used by cfb/ofb/ctr mode */ | |
44 | /* FIXME: Should this even exist? It appears unused */ | |
45 | void *app_data; /* application stuff */ | |
46 | int key_len; /* May change for variable length cipher */ | |
47 | unsigned long flags; /* Various flags */ | |
48 | void *cipher_data; /* per EVP data */ | |
49 | int final_used; | |
50 | int block_mask; | |
51 | unsigned char final[EVP_MAX_BLOCK_LENGTH]; /* possible final block */ | |
df05f2ce MC |
52 | |
53 | /* Provider ctx */ | |
54 | void *provctx; | |
55 | EVP_CIPHER *fetched_cipher; | |
8baf9968 RL |
56 | } /* EVP_CIPHER_CTX */ ; |
57 | ||
567db2c1 | 58 | struct evp_mac_ctx_st { |
e74bd290 | 59 | EVP_MAC *meth; /* Method structure */ |
567db2c1 RL |
60 | void *data; /* Individual method data */ |
61 | } /* EVP_MAC_CTX */; | |
62 | ||
5a285add | 63 | struct evp_kdf_ctx_st { |
fb9e6dd6 P |
64 | EVP_KDF *meth; /* Method structure */ |
65 | void *data; /* Algorithm-specific data */ | |
5a285add DM |
66 | } /* EVP_KDF_CTX */ ; |
67 | ||
a94a3e0d RL |
68 | struct evp_keymgmt_st { |
69 | int id; /* libcrypto internal */ | |
70 | ||
f7c16d48 | 71 | int name_id; |
a94a3e0d RL |
72 | OSSL_PROVIDER *prov; |
73 | CRYPTO_REF_COUNT refcnt; | |
74 | CRYPTO_RWLOCK *lock; | |
75 | ||
b305452f RL |
76 | /* Constructor(s), destructor, information */ |
77 | OSSL_OP_keymgmt_new_fn *new; | |
78 | OSSL_OP_keymgmt_free_fn *free; | |
79 | OSSL_OP_keymgmt_get_params_fn *get_params; | |
80 | OSSL_OP_keymgmt_gettable_params_fn *gettable_params; | |
4fe54d67 NT |
81 | OSSL_OP_keymgmt_set_params_fn *set_params; |
82 | OSSL_OP_keymgmt_settable_params_fn *settable_params; | |
6508e858 | 83 | |
b305452f | 84 | /* Key object checking */ |
e62a45b6 | 85 | OSSL_OP_keymgmt_query_operation_name_fn *query_operation_name; |
b305452f RL |
86 | OSSL_OP_keymgmt_has_fn *has; |
87 | OSSL_OP_keymgmt_validate_fn *validate; | |
88 | ||
89 | /* Import and export routines */ | |
90 | OSSL_OP_keymgmt_import_fn *import; | |
91 | OSSL_OP_keymgmt_import_types_fn *import_types; | |
92 | OSSL_OP_keymgmt_export_fn *export; | |
93 | OSSL_OP_keymgmt_export_types_fn *export_types; | |
a94a3e0d RL |
94 | } /* EVP_KEYMGMT */ ; |
95 | ||
ff64702b | 96 | struct evp_keyexch_st { |
f7c16d48 | 97 | int name_id; |
ff64702b MC |
98 | OSSL_PROVIDER *prov; |
99 | CRYPTO_REF_COUNT refcnt; | |
100 | CRYPTO_RWLOCK *lock; | |
101 | ||
102 | OSSL_OP_keyexch_newctx_fn *newctx; | |
103 | OSSL_OP_keyexch_init_fn *init; | |
104 | OSSL_OP_keyexch_set_peer_fn *set_peer; | |
105 | OSSL_OP_keyexch_derive_fn *derive; | |
106 | OSSL_OP_keyexch_freectx_fn *freectx; | |
107 | OSSL_OP_keyexch_dupctx_fn *dupctx; | |
9c45222d MC |
108 | OSSL_OP_keyexch_set_ctx_params_fn *set_ctx_params; |
109 | OSSL_OP_keyexch_settable_ctx_params_fn *settable_ctx_params; | |
4fe54d67 NT |
110 | OSSL_OP_keyexch_get_ctx_params_fn *get_ctx_params; |
111 | OSSL_OP_keyexch_gettable_ctx_params_fn *gettable_ctx_params; | |
ff64702b MC |
112 | } /* EVP_KEYEXCH */; |
113 | ||
dfcb5d29 | 114 | struct evp_signature_st { |
f7c16d48 | 115 | int name_id; |
dfcb5d29 MC |
116 | OSSL_PROVIDER *prov; |
117 | CRYPTO_REF_COUNT refcnt; | |
118 | CRYPTO_RWLOCK *lock; | |
119 | ||
dfcb5d29 MC |
120 | OSSL_OP_signature_newctx_fn *newctx; |
121 | OSSL_OP_signature_sign_init_fn *sign_init; | |
122 | OSSL_OP_signature_sign_fn *sign; | |
390acbeb MC |
123 | OSSL_OP_signature_verify_init_fn *verify_init; |
124 | OSSL_OP_signature_verify_fn *verify; | |
125 | OSSL_OP_signature_verify_recover_init_fn *verify_recover_init; | |
126 | OSSL_OP_signature_verify_recover_fn *verify_recover; | |
d8c98d79 MC |
127 | OSSL_OP_signature_digest_sign_init_fn *digest_sign_init; |
128 | OSSL_OP_signature_digest_sign_update_fn *digest_sign_update; | |
129 | OSSL_OP_signature_digest_sign_final_fn *digest_sign_final; | |
130 | OSSL_OP_signature_digest_verify_init_fn *digest_verify_init; | |
131 | OSSL_OP_signature_digest_verify_update_fn *digest_verify_update; | |
132 | OSSL_OP_signature_digest_verify_final_fn *digest_verify_final; | |
dfcb5d29 MC |
133 | OSSL_OP_signature_freectx_fn *freectx; |
134 | OSSL_OP_signature_dupctx_fn *dupctx; | |
9c45222d MC |
135 | OSSL_OP_signature_get_ctx_params_fn *get_ctx_params; |
136 | OSSL_OP_signature_gettable_ctx_params_fn *gettable_ctx_params; | |
137 | OSSL_OP_signature_set_ctx_params_fn *set_ctx_params; | |
138 | OSSL_OP_signature_settable_ctx_params_fn *settable_ctx_params; | |
d8c98d79 MC |
139 | OSSL_OP_signature_get_ctx_md_params_fn *get_ctx_md_params; |
140 | OSSL_OP_signature_gettable_ctx_md_params_fn *gettable_ctx_md_params; | |
141 | OSSL_OP_signature_set_ctx_md_params_fn *set_ctx_md_params; | |
142 | OSSL_OP_signature_settable_ctx_md_params_fn *settable_ctx_md_params; | |
dfcb5d29 MC |
143 | } /* EVP_SIGNATURE */; |
144 | ||
2c938e2e MC |
145 | struct evp_asym_cipher_st { |
146 | int name_id; | |
147 | OSSL_PROVIDER *prov; | |
148 | CRYPTO_REF_COUNT refcnt; | |
149 | CRYPTO_RWLOCK *lock; | |
150 | ||
151 | OSSL_OP_asym_cipher_newctx_fn *newctx; | |
152 | OSSL_OP_asym_cipher_encrypt_init_fn *encrypt_init; | |
153 | OSSL_OP_asym_cipher_encrypt_fn *encrypt; | |
154 | OSSL_OP_asym_cipher_decrypt_init_fn *decrypt_init; | |
155 | OSSL_OP_asym_cipher_decrypt_fn *decrypt; | |
156 | OSSL_OP_asym_cipher_freectx_fn *freectx; | |
157 | OSSL_OP_asym_cipher_dupctx_fn *dupctx; | |
158 | OSSL_OP_asym_cipher_get_ctx_params_fn *get_ctx_params; | |
159 | OSSL_OP_asym_cipher_gettable_ctx_params_fn *gettable_ctx_params; | |
160 | OSSL_OP_asym_cipher_set_ctx_params_fn *set_ctx_params; | |
161 | OSSL_OP_asym_cipher_settable_ctx_params_fn *settable_ctx_params; | |
162 | } /* EVP_ASYM_CIPHER */; | |
163 | ||
0f113f3e MC |
164 | int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, |
165 | int passlen, ASN1_TYPE *param, | |
166 | const EVP_CIPHER *c, const EVP_MD *md, | |
167 | int en_de); | |
a0be4fd1 RL |
168 | |
169 | struct evp_Encode_Ctx_st { | |
170 | /* number saved in a partial encode/decode */ | |
171 | int num; | |
172 | /* | |
173 | * The length is either the output line length (in input bytes) or the | |
174 | * shortest input line length that is ok. Once decoding begins, the | |
175 | * length is adjusted up each time a longer line is decoded | |
176 | */ | |
177 | int length; | |
178 | /* data to encode */ | |
179 | unsigned char enc_data[80]; | |
180 | /* number read on current line */ | |
181 | int line_num; | |
c0804614 | 182 | unsigned int flags; |
a0be4fd1 | 183 | }; |
4a1f3f27 DSH |
184 | |
185 | typedef struct evp_pbe_st EVP_PBE_CTL; | |
186 | DEFINE_STACK_OF(EVP_PBE_CTL) | |
7141ba31 MC |
187 | |
188 | int is_partially_overlapping(const void *ptr1, const void *ptr2, int len); | |
c13d2ab4 | 189 | |
50cd4768 | 190 | #include <openssl/types.h> |
c13d2ab4 RL |
191 | #include <openssl/core.h> |
192 | ||
193 | void *evp_generic_fetch(OPENSSL_CTX *ctx, int operation_id, | |
f7c16d48 RL |
194 | const char *name, const char *properties, |
195 | void *(*new_method)(int name_id, | |
6b9e3724 | 196 | const OSSL_DISPATCH *fns, |
0ddf74bf | 197 | OSSL_PROVIDER *prov), |
7c95390e | 198 | int (*up_ref_method)(void *), |
0211740f | 199 | void (*free_method)(void *)); |
f7c16d48 RL |
200 | void *evp_generic_fetch_by_number(OPENSSL_CTX *ctx, int operation_id, |
201 | int name_id, const char *properties, | |
202 | void *(*new_method)(int name_id, | |
203 | const OSSL_DISPATCH *fns, | |
0ddf74bf | 204 | OSSL_PROVIDER *prov), |
f7c16d48 RL |
205 | int (*up_ref_method)(void *), |
206 | void (*free_method)(void *)); | |
3d96a51c RL |
207 | void evp_generic_do_all(OPENSSL_CTX *libctx, int operation_id, |
208 | void (*user_fn)(void *method, void *arg), | |
209 | void *user_arg, | |
f7c16d48 | 210 | void *(*new_method)(int name_id, |
3d96a51c | 211 | const OSSL_DISPATCH *fns, |
0ddf74bf | 212 | OSSL_PROVIDER *prov), |
3d96a51c | 213 | void (*free_method)(void *)); |
13273237 | 214 | |
f7c16d48 RL |
215 | /* Internal fetchers for method types that are to be combined with others */ |
216 | EVP_KEYMGMT *evp_keymgmt_fetch_by_number(OPENSSL_CTX *ctx, int name_id, | |
217 | const char *properties); | |
218 | ||
3fd70262 RL |
219 | /* Internal structure constructors for fetched methods */ |
220 | EVP_MD *evp_md_new(void); | |
550f974a | 221 | EVP_CIPHER *evp_cipher_new(void); |
3fd70262 | 222 | |
13273237 RL |
223 | /* Helper functions to avoid duplicating code */ |
224 | ||
225 | /* | |
459b15d4 | 226 | * These methods implement different ways to pass a params array to the |
13273237 RL |
227 | * provider. They will return one of these values: |
228 | * | |
229 | * -2 if the method doesn't come from a provider | |
230 | * (evp_do_param will return this to the called) | |
231 | * -1 if the provider doesn't offer the desired function | |
232 | * (evp_do_param will raise an error and return 0) | |
233 | * or the return value from the desired function | |
234 | * (evp_do_param will return it to the caller) | |
235 | */ | |
459b15d4 SL |
236 | int evp_do_ciph_getparams(const EVP_CIPHER *ciph, OSSL_PARAM params[]); |
237 | int evp_do_ciph_ctx_getparams(const EVP_CIPHER *ciph, void *provctx, | |
13273237 | 238 | OSSL_PARAM params[]); |
459b15d4 | 239 | int evp_do_ciph_ctx_setparams(const EVP_CIPHER *ciph, void *provctx, |
13273237 | 240 | OSSL_PARAM params[]); |
6a3b7c68 RL |
241 | int evp_do_md_getparams(const EVP_MD *md, OSSL_PARAM params[]); |
242 | int evp_do_md_ctx_getparams(const EVP_MD *md, void *provctx, | |
243 | OSSL_PARAM params[]); | |
244 | int evp_do_md_ctx_setparams(const EVP_MD *md, void *provctx, | |
245 | OSSL_PARAM params[]); | |
ff64702b MC |
246 | |
247 | OSSL_PARAM *evp_pkey_to_param(EVP_PKEY *pkey, size_t *sz); | |
248 | ||
249 | #define M_check_autoarg(ctx, arg, arglen, err) \ | |
250 | if (ctx->pmeth->flags & EVP_PKEY_FLAG_AUTOARGLEN) { \ | |
251 | size_t pksize = (size_t)EVP_PKEY_size(ctx->pkey); \ | |
252 | \ | |
253 | if (pksize == 0) { \ | |
51ba9ebd | 254 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_KEY); /*ckerr_ignore*/ \ |
ff64702b MC |
255 | return 0; \ |
256 | } \ | |
257 | if (arg == NULL) { \ | |
258 | *arglen = pksize; \ | |
259 | return 1; \ | |
260 | } \ | |
261 | if (*arglen < pksize) { \ | |
51ba9ebd | 262 | ERR_raise(ERR_LIB_EVP, EVP_R_BUFFER_TOO_SMALL); /*ckerr_ignore*/ \ |
ff64702b MC |
263 | return 0; \ |
264 | } \ | |
265 | } | |
864b89ce MC |
266 | |
267 | void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx); | |
f7c16d48 RL |
268 | |
269 | /* OSSL_PROVIDER * is only used to get the library context */ | |
3f7ce7f1 | 270 | const char *evp_first_name(const OSSL_PROVIDER *prov, int name_id); |
e4a1d023 RL |
271 | int evp_is_a(OSSL_PROVIDER *prov, int number, |
272 | const char *legacy_name, const char *name); | |
f651c727 RL |
273 | void evp_names_do_all(OSSL_PROVIDER *prov, int number, |
274 | void (*fn)(const char *name, void *data), | |
275 | void *data); | |
3c957bcd | 276 | int evp_cipher_cache_constants(EVP_CIPHER *cipher); |