2 * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
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
12 #include <openssl/evp.h>
13 #include "crypto/evp.h"
14 #include "internal/provider.h"
15 #include "evp_local.h"
17 EVP_CIPHER *EVP_CIPHER_meth_new(int cipher_type, int block_size, int key_len)
19 EVP_CIPHER *cipher = evp_cipher_new();
22 cipher->nid = cipher_type;
23 cipher->block_size = block_size;
24 cipher->key_len = key_len;
29 EVP_CIPHER *EVP_CIPHER_meth_dup(const EVP_CIPHER *cipher)
31 EVP_CIPHER *to = NULL;
34 * Non-legacy EVP_CIPHERs can't be duplicated like this.
35 * Use EVP_CIPHER_up_ref() instead.
37 if (cipher->prov != NULL)
40 if ((to = EVP_CIPHER_meth_new(cipher->nid, cipher->block_size,
41 cipher->key_len)) != NULL) {
42 CRYPTO_RWLOCK *lock = to->lock;
44 memcpy(to, cipher, sizeof(*to));
50 void EVP_CIPHER_meth_free(EVP_CIPHER *cipher)
52 EVP_CIPHER_free(cipher);
55 int EVP_CIPHER_meth_set_iv_length(EVP_CIPHER *cipher, int iv_len)
57 if (cipher->iv_len != 0)
60 cipher->iv_len = iv_len;
64 int EVP_CIPHER_meth_set_flags(EVP_CIPHER *cipher, unsigned long flags)
66 if (cipher->flags != 0)
69 cipher->flags = flags;
73 int EVP_CIPHER_meth_set_impl_ctx_size(EVP_CIPHER *cipher, int ctx_size)
75 if (cipher->ctx_size != 0)
78 cipher->ctx_size = ctx_size;
82 int EVP_CIPHER_meth_set_init(EVP_CIPHER *cipher,
83 int (*init) (EVP_CIPHER_CTX *ctx,
84 const unsigned char *key,
85 const unsigned char *iv,
88 if (cipher->init != NULL)
95 int EVP_CIPHER_meth_set_do_cipher(EVP_CIPHER *cipher,
96 int (*do_cipher) (EVP_CIPHER_CTX *ctx,
98 const unsigned char *in,
101 if (cipher->do_cipher != NULL)
104 cipher->do_cipher = do_cipher;
108 int EVP_CIPHER_meth_set_cleanup(EVP_CIPHER *cipher,
109 int (*cleanup) (EVP_CIPHER_CTX *))
111 if (cipher->cleanup != NULL)
114 cipher->cleanup = cleanup;
118 int EVP_CIPHER_meth_set_set_asn1_params(EVP_CIPHER *cipher,
119 int (*set_asn1_parameters) (EVP_CIPHER_CTX *,
122 if (cipher->set_asn1_parameters != NULL)
125 cipher->set_asn1_parameters = set_asn1_parameters;
129 int EVP_CIPHER_meth_set_get_asn1_params(EVP_CIPHER *cipher,
130 int (*get_asn1_parameters) (EVP_CIPHER_CTX *,
133 if (cipher->get_asn1_parameters != NULL)
136 cipher->get_asn1_parameters = get_asn1_parameters;
140 int EVP_CIPHER_meth_set_ctrl(EVP_CIPHER *cipher,
141 int (*ctrl) (EVP_CIPHER_CTX *, int type,
144 if (cipher->ctrl != NULL)
152 int (*EVP_CIPHER_meth_get_init(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *ctx,
153 const unsigned char *key,
154 const unsigned char *iv,
159 int (*EVP_CIPHER_meth_get_do_cipher(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *ctx,
161 const unsigned char *in,
164 return cipher->do_cipher;
167 int (*EVP_CIPHER_meth_get_cleanup(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *)
169 return cipher->cleanup;
172 int (*EVP_CIPHER_meth_get_set_asn1_params(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *,
175 return cipher->set_asn1_parameters;
178 int (*EVP_CIPHER_meth_get_get_asn1_params(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *,
181 return cipher->get_asn1_parameters;
184 int (*EVP_CIPHER_meth_get_ctrl(const EVP_CIPHER *cipher))(EVP_CIPHER_CTX *,