1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file isc/aes.c */
#include <openssl/evp.h>
#include <openssl/opensslv.h>
#include <isc/aes.h>
#include <isc/assertions.h>
#include <isc/string.h>
#include <isc/types.h>
#include <isc/util.h>
void
isc_aes128_crypt(const unsigned char *key, const unsigned char *in,
unsigned char *out) {
EVP_CIPHER_CTX *c;
int len;
c = EVP_CIPHER_CTX_new();
RUNTIME_CHECK(c != NULL);
RUNTIME_CHECK(EVP_EncryptInit(c, EVP_aes_128_ecb(), key, NULL) == 1);
EVP_CIPHER_CTX_set_padding(c, 0);
RUNTIME_CHECK(
EVP_EncryptUpdate(c, out, &len, in, ISC_AES_BLOCK_LENGTH) == 1);
RUNTIME_CHECK(len == ISC_AES_BLOCK_LENGTH);
EVP_CIPHER_CTX_free(c);
}
void
isc_aes192_crypt(const unsigned char *key, const unsigned char *in,
unsigned char *out) {
EVP_CIPHER_CTX *c;
int len;
c = EVP_CIPHER_CTX_new();
RUNTIME_CHECK(c != NULL);
RUNTIME_CHECK(EVP_EncryptInit(c, EVP_aes_192_ecb(), key, NULL) == 1);
EVP_CIPHER_CTX_set_padding(c, 0);
RUNTIME_CHECK(
EVP_EncryptUpdate(c, out, &len, in, ISC_AES_BLOCK_LENGTH) == 1);
RUNTIME_CHECK(len == ISC_AES_BLOCK_LENGTH);
EVP_CIPHER_CTX_free(c);
}
void
isc_aes256_crypt(const unsigned char *key, const unsigned char *in,
unsigned char *out) {
EVP_CIPHER_CTX *c;
int len;
c = EVP_CIPHER_CTX_new();
RUNTIME_CHECK(c != NULL);
RUNTIME_CHECK(EVP_EncryptInit(c, EVP_aes_256_ecb(), key, NULL) == 1);
EVP_CIPHER_CTX_set_padding(c, 0);
RUNTIME_CHECK(
EVP_EncryptUpdate(c, out, &len, in, ISC_AES_BLOCK_LENGTH) == 1);
RUNTIME_CHECK(len == ISC_AES_BLOCK_LENGTH);
EVP_CIPHER_CTX_free(c);
}
|
