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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/evp/cmeth_lib.c
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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 "internal/evp_int.h"
14 #include "internal/provider.h"
17 EVP_CIPHER
*EVP_CIPHER_meth_new(int cipher_type
, int block_size
, int key_len
)
19 EVP_CIPHER
*cipher
= OPENSSL_zalloc(sizeof(EVP_CIPHER
));
22 cipher
->nid
= cipher_type
;
23 cipher
->block_size
= block_size
;
24 cipher
->key_len
= key_len
;
25 cipher
->lock
= CRYPTO_THREAD_lock_new();
26 if (cipher
->lock
== NULL
) {
35 EVP_CIPHER
*EVP_CIPHER_meth_dup(const EVP_CIPHER
*cipher
)
37 EVP_CIPHER
*to
= EVP_CIPHER_meth_new(cipher
->nid
, cipher
->block_size
,
41 CRYPTO_RWLOCK
*lock
= to
->lock
;
43 memcpy(to
, cipher
, sizeof(*to
));
49 void EVP_CIPHER_meth_free(EVP_CIPHER
*cipher
)
54 CRYPTO_DOWN_REF(&cipher
->refcnt
, &i
, cipher
->lock
);
57 ossl_provider_free(cipher
->prov
);
58 CRYPTO_THREAD_lock_free(cipher
->lock
);
63 int EVP_CIPHER_up_ref(EVP_CIPHER
*cipher
)
67 CRYPTO_UP_REF(&cipher
->refcnt
, &ref
, cipher
->lock
);
71 int EVP_CIPHER_meth_set_iv_length(EVP_CIPHER
*cipher
, int iv_len
)
73 cipher
->iv_len
= iv_len
;
77 int EVP_CIPHER_meth_set_flags(EVP_CIPHER
*cipher
, unsigned long flags
)
79 cipher
->flags
= flags
;
83 int EVP_CIPHER_meth_set_impl_ctx_size(EVP_CIPHER
*cipher
, int ctx_size
)
85 cipher
->ctx_size
= ctx_size
;
89 int EVP_CIPHER_meth_set_init(EVP_CIPHER
*cipher
,
90 int (*init
) (EVP_CIPHER_CTX
*ctx
,
91 const unsigned char *key
,
92 const unsigned char *iv
,
99 int EVP_CIPHER_meth_set_do_cipher(EVP_CIPHER
*cipher
,
100 int (*do_cipher
) (EVP_CIPHER_CTX
*ctx
,
102 const unsigned char *in
,
105 cipher
->do_cipher
= do_cipher
;
109 int EVP_CIPHER_meth_set_cleanup(EVP_CIPHER
*cipher
,
110 int (*cleanup
) (EVP_CIPHER_CTX
*))
112 cipher
->cleanup
= cleanup
;
116 int EVP_CIPHER_meth_set_set_asn1_params(EVP_CIPHER
*cipher
,
117 int (*set_asn1_parameters
) (EVP_CIPHER_CTX
*,
120 cipher
->set_asn1_parameters
= set_asn1_parameters
;
124 int EVP_CIPHER_meth_set_get_asn1_params(EVP_CIPHER
*cipher
,
125 int (*get_asn1_parameters
) (EVP_CIPHER_CTX
*,
128 cipher
->get_asn1_parameters
= get_asn1_parameters
;
132 int EVP_CIPHER_meth_set_ctrl(EVP_CIPHER
*cipher
,
133 int (*ctrl
) (EVP_CIPHER_CTX
*, int type
,
141 int (*EVP_CIPHER_meth_get_init(const EVP_CIPHER
*cipher
))(EVP_CIPHER_CTX
*ctx
,
142 const unsigned char *key
,
143 const unsigned char *iv
,
148 int (*EVP_CIPHER_meth_get_do_cipher(const EVP_CIPHER
*cipher
))(EVP_CIPHER_CTX
*ctx
,
150 const unsigned char *in
,
153 return cipher
->do_cipher
;
156 int (*EVP_CIPHER_meth_get_cleanup(const EVP_CIPHER
*cipher
))(EVP_CIPHER_CTX
*)
158 return cipher
->cleanup
;
161 int (*EVP_CIPHER_meth_get_set_asn1_params(const EVP_CIPHER
*cipher
))(EVP_CIPHER_CTX
*,
164 return cipher
->set_asn1_parameters
;
167 int (*EVP_CIPHER_meth_get_get_asn1_params(const EVP_CIPHER
*cipher
))(EVP_CIPHER_CTX
*,
170 return cipher
->get_asn1_parameters
;
173 int (*EVP_CIPHER_meth_get_ctrl(const EVP_CIPHER
*cipher
))(EVP_CIPHER_CTX
*,