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e79f8773 | 1 | /* |
aa6bb135 | 2 | * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved. |
e79f8773 | 3 | * |
aa6bb135 RS |
4 | * Licensed under the OpenSSL license (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 | |
e79f8773 RL |
8 | */ |
9 | ||
10 | #include <string.h> | |
11 | ||
12 | #include <openssl/evp.h> | |
13 | #include "internal/evp_int.h" | |
14 | #include "evp_locl.h" | |
15 | ||
16 | EVP_CIPHER *EVP_CIPHER_meth_new(int cipher_type, int block_size, int key_len) | |
17 | { | |
43ecb9c3 RS |
18 | EVP_CIPHER *cipher = OPENSSL_zalloc(sizeof(EVP_CIPHER)); |
19 | ||
e79f8773 RL |
20 | if (cipher != NULL) { |
21 | cipher->nid = cipher_type; | |
22 | cipher->block_size = block_size; | |
23 | cipher->key_len = key_len; | |
24 | } | |
25 | return cipher; | |
26 | } | |
27 | ||
28 | EVP_CIPHER *EVP_CIPHER_meth_dup(const EVP_CIPHER *cipher) | |
29 | { | |
30 | EVP_CIPHER *to = EVP_CIPHER_meth_new(cipher->nid, cipher->block_size, | |
31 | cipher->key_len); | |
43ecb9c3 RS |
32 | |
33 | if (to != NULL) | |
e79f8773 RL |
34 | memcpy(to, cipher, sizeof(*to)); |
35 | return to; | |
36 | } | |
37 | ||
38 | void EVP_CIPHER_meth_free(EVP_CIPHER *cipher) | |
39 | { | |
40 | OPENSSL_free(cipher); | |
41 | } | |
42 | ||
43 | int EVP_CIPHER_meth_set_iv_length(EVP_CIPHER *cipher, int iv_len) | |
44 | { | |
45 | cipher->iv_len = iv_len; | |
46 | return 1; | |
47 | } | |
48 | ||
49 | int EVP_CIPHER_meth_set_flags(EVP_CIPHER *cipher, unsigned long flags) | |
50 | { | |
51 | cipher->flags = flags; | |
52 | return 1; | |
53 | } | |
54 | ||
55 | int EVP_CIPHER_meth_set_impl_ctx_size(EVP_CIPHER *cipher, int ctx_size) | |
56 | { | |
57 | cipher->ctx_size = ctx_size; | |
58 | return 1; | |
59 | } | |
60 | ||
61 | int EVP_CIPHER_meth_set_init(EVP_CIPHER *cipher, | |
62 | int (*init) (EVP_CIPHER_CTX *ctx, | |
63 | const unsigned char *key, | |
64 | const unsigned char *iv, | |
65 | int enc)) | |
66 | { | |
67 | cipher->init = init; | |
68 | return 1; | |
69 | } | |
70 | ||
71 | int EVP_CIPHER_meth_set_do_cipher(EVP_CIPHER *cipher, | |
72 | int (*do_cipher) (EVP_CIPHER_CTX *ctx, | |
73 | unsigned char *out, | |
74 | const unsigned char *in, | |
75 | size_t inl)) | |
76 | { | |
77 | cipher->do_cipher = do_cipher; | |
78 | return 1; | |
79 | } | |
80 | ||
81 | int EVP_CIPHER_meth_set_cleanup(EVP_CIPHER *cipher, | |
82 | int (*cleanup) (EVP_CIPHER_CTX *)) | |
83 | { | |
84 | cipher->cleanup = cleanup; | |
85 | return 1; | |
86 | } | |
87 | ||
88 | int EVP_CIPHER_meth_set_set_asn1_params(EVP_CIPHER *cipher, | |
89 | int (*set_asn1_parameters) (EVP_CIPHER_CTX *, | |
90 | ASN1_TYPE *)) | |
91 | { | |
92 | cipher->set_asn1_parameters = set_asn1_parameters; | |
93 | return 1; | |
94 | } | |
95 | ||
96 | int EVP_CIPHER_meth_set_get_asn1_params(EVP_CIPHER *cipher, | |
97 | int (*get_asn1_parameters) (EVP_CIPHER_CTX *, | |
98 | ASN1_TYPE *)) | |
99 | { | |
100 | cipher->get_asn1_parameters = get_asn1_parameters; | |
101 | return 1; | |
102 | } | |
103 | ||
104 | int EVP_CIPHER_meth_set_ctrl(EVP_CIPHER *cipher, | |
105 | int (*ctrl) (EVP_CIPHER_CTX *, int type, | |
106 | int arg, void *ptr)) | |
107 | { | |
108 | cipher->ctrl = ctrl; | |
109 | return 1; | |
110 | } | |
111 | ||
112 | ||
113 | int (*EVP_CIPHER_meth_get_init(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *ctx, | |
114 | const unsigned char *key, | |
115 | const unsigned char *iv, | |
116 | int enc) | |
117 | { | |
118 | return cipher->init; | |
119 | } | |
120 | int (*EVP_CIPHER_meth_get_do_cipher(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *ctx, | |
121 | unsigned char *out, | |
122 | const unsigned char *in, | |
123 | size_t inl) | |
124 | { | |
125 | return cipher->do_cipher; | |
126 | } | |
127 | ||
128 | int (*EVP_CIPHER_meth_get_cleanup(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *) | |
129 | { | |
130 | return cipher->cleanup; | |
131 | } | |
132 | ||
133 | int (*EVP_CIPHER_meth_get_set_asn1_params(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *, | |
134 | ASN1_TYPE *) | |
135 | { | |
136 | return cipher->set_asn1_parameters; | |
137 | } | |
138 | ||
139 | int (*EVP_CIPHER_meth_get_get_asn1_params(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *, | |
140 | ASN1_TYPE *) | |
141 | { | |
142 | return cipher->get_asn1_parameters; | |
143 | } | |
144 | ||
145 | int (*EVP_CIPHER_meth_get_ctrl(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *, | |
146 | int type, int arg, | |
147 | void *ptr) | |
148 | { | |
149 | return cipher->ctrl; | |
150 | } | |
151 |