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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 | ||
7638370c | 14 | struct evp_md_ctx_st { |
b7c913c8 | 15 | const EVP_MD *reqdigest; /* The original requested digest */ |
7638370c RL |
16 | const EVP_MD *digest; |
17 | ENGINE *engine; /* functional reference if 'digest' is | |
18 | * ENGINE-provided */ | |
19 | unsigned long flags; | |
20 | void *md_data; | |
21 | /* Public key context for sign/verify */ | |
22 | EVP_PKEY_CTX *pctx; | |
23 | /* Update function: usually copied from EVP_MD */ | |
24 | int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count); | |
8c8cf0d9 MC |
25 | |
26 | /* Provider ctx */ | |
27 | void *provctx; | |
28 | EVP_MD *fetched_digest; | |
7638370c RL |
29 | } /* EVP_MD_CTX */ ; |
30 | ||
8baf9968 RL |
31 | struct evp_cipher_ctx_st { |
32 | const EVP_CIPHER *cipher; | |
33 | ENGINE *engine; /* functional reference if 'cipher' is | |
34 | * ENGINE-provided */ | |
35 | int encrypt; /* encrypt or decrypt */ | |
36 | int buf_len; /* number we have left */ | |
37 | unsigned char oiv[EVP_MAX_IV_LENGTH]; /* original iv */ | |
38 | unsigned char iv[EVP_MAX_IV_LENGTH]; /* working iv */ | |
39 | unsigned char buf[EVP_MAX_BLOCK_LENGTH]; /* saved partial block */ | |
40 | int num; /* used by cfb/ofb/ctr mode */ | |
41 | /* FIXME: Should this even exist? It appears unused */ | |
42 | void *app_data; /* application stuff */ | |
43 | int key_len; /* May change for variable length cipher */ | |
44 | unsigned long flags; /* Various flags */ | |
45 | void *cipher_data; /* per EVP data */ | |
46 | int final_used; | |
47 | int block_mask; | |
48 | unsigned char final[EVP_MAX_BLOCK_LENGTH]; /* possible final block */ | |
df05f2ce MC |
49 | |
50 | /* Provider ctx */ | |
51 | void *provctx; | |
52 | EVP_CIPHER *fetched_cipher; | |
8baf9968 RL |
53 | } /* EVP_CIPHER_CTX */ ; |
54 | ||
567db2c1 RL |
55 | struct evp_mac_ctx_st { |
56 | const EVP_MAC *meth; /* Method structure */ | |
57 | void *data; /* Individual method data */ | |
58 | } /* EVP_MAC_CTX */; | |
59 | ||
5a285add | 60 | struct evp_kdf_ctx_st { |
d2ba8123 | 61 | const EVP_KDF *meth; /* Method structure */ |
5a285add DM |
62 | EVP_KDF_IMPL *impl; /* Algorithm-specific data */ |
63 | } /* EVP_KDF_CTX */ ; | |
64 | ||
ff64702b MC |
65 | struct evp_keyexch_st { |
66 | OSSL_PROVIDER *prov; | |
67 | CRYPTO_REF_COUNT refcnt; | |
68 | CRYPTO_RWLOCK *lock; | |
69 | ||
70 | OSSL_OP_keyexch_newctx_fn *newctx; | |
71 | OSSL_OP_keyexch_init_fn *init; | |
72 | OSSL_OP_keyexch_set_peer_fn *set_peer; | |
73 | OSSL_OP_keyexch_derive_fn *derive; | |
74 | OSSL_OP_keyexch_freectx_fn *freectx; | |
75 | OSSL_OP_keyexch_dupctx_fn *dupctx; | |
76 | } /* EVP_KEYEXCH */; | |
77 | ||
78 | ||
0f113f3e MC |
79 | int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, |
80 | int passlen, ASN1_TYPE *param, | |
81 | const EVP_CIPHER *c, const EVP_MD *md, | |
82 | int en_de); | |
a0be4fd1 RL |
83 | |
84 | struct evp_Encode_Ctx_st { | |
85 | /* number saved in a partial encode/decode */ | |
86 | int num; | |
87 | /* | |
88 | * The length is either the output line length (in input bytes) or the | |
89 | * shortest input line length that is ok. Once decoding begins, the | |
90 | * length is adjusted up each time a longer line is decoded | |
91 | */ | |
92 | int length; | |
93 | /* data to encode */ | |
94 | unsigned char enc_data[80]; | |
95 | /* number read on current line */ | |
96 | int line_num; | |
c0804614 | 97 | unsigned int flags; |
a0be4fd1 | 98 | }; |
4a1f3f27 DSH |
99 | |
100 | typedef struct evp_pbe_st EVP_PBE_CTL; | |
101 | DEFINE_STACK_OF(EVP_PBE_CTL) | |
7141ba31 MC |
102 | |
103 | int is_partially_overlapping(const void *ptr1, const void *ptr2, int len); | |
c13d2ab4 RL |
104 | |
105 | #include <openssl/ossl_typ.h> | |
106 | #include <openssl/core.h> | |
107 | ||
108 | void *evp_generic_fetch(OPENSSL_CTX *ctx, int operation_id, | |
109 | const char *algorithm, const char *properties, | |
0211740f | 110 | void *(*new_method)(const OSSL_DISPATCH *fns, |
c13d2ab4 | 111 | OSSL_PROVIDER *prov), |
7c95390e | 112 | int (*up_ref_method)(void *), |
0211740f | 113 | void (*free_method)(void *)); |
13273237 RL |
114 | |
115 | /* Helper functions to avoid duplicating code */ | |
116 | ||
117 | /* | |
459b15d4 | 118 | * These methods implement different ways to pass a params array to the |
13273237 RL |
119 | * provider. They will return one of these values: |
120 | * | |
121 | * -2 if the method doesn't come from a provider | |
122 | * (evp_do_param will return this to the called) | |
123 | * -1 if the provider doesn't offer the desired function | |
124 | * (evp_do_param will raise an error and return 0) | |
125 | * or the return value from the desired function | |
126 | * (evp_do_param will return it to the caller) | |
127 | */ | |
459b15d4 SL |
128 | int evp_do_ciph_getparams(const EVP_CIPHER *ciph, OSSL_PARAM params[]); |
129 | int evp_do_ciph_ctx_getparams(const EVP_CIPHER *ciph, void *provctx, | |
13273237 | 130 | OSSL_PARAM params[]); |
459b15d4 | 131 | int evp_do_ciph_ctx_setparams(const EVP_CIPHER *ciph, void *provctx, |
13273237 | 132 | OSSL_PARAM params[]); |
ff64702b MC |
133 | |
134 | OSSL_PARAM *evp_pkey_to_param(EVP_PKEY *pkey, size_t *sz); | |
135 | ||
136 | #define M_check_autoarg(ctx, arg, arglen, err) \ | |
137 | if (ctx->pmeth->flags & EVP_PKEY_FLAG_AUTOARGLEN) { \ | |
138 | size_t pksize = (size_t)EVP_PKEY_size(ctx->pkey); \ | |
139 | \ | |
140 | if (pksize == 0) { \ | |
141 | EVPerr(err, EVP_R_INVALID_KEY); /*ckerr_ignore*/ \ | |
142 | return 0; \ | |
143 | } \ | |
144 | if (arg == NULL) { \ | |
145 | *arglen = pksize; \ | |
146 | return 1; \ | |
147 | } \ | |
148 | if (*arglen < pksize) { \ | |
149 | EVPerr(err, EVP_R_BUFFER_TOO_SMALL); /*ckerr_ignore*/ \ | |
150 | return 0; \ | |
151 | } \ | |
152 | } |