[331] | 1 | /*
|
---|
| 2 | * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
|
---|
| 3 | *
|
---|
| 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
|
---|
| 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 | {
|
---|
| 18 | EVP_CIPHER *cipher = OPENSSL_zalloc(sizeof(EVP_CIPHER));
|
---|
| 19 |
|
---|
| 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);
|
---|
| 32 |
|
---|
| 33 | if (to != NULL)
|
---|
| 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 |
|
---|