1/* ====================================================================
2 * Copyright (c) 2002-2006 The OpenSSL Project. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
14 * distribution.
15 *
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
20 *
21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For written permission, please contact
24 * openssl-core@openssl.org.
25 *
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
28 * permission of the OpenSSL Project.
29 *
30 * 6. Redistributions of any form whatsoever must retain the following
31 * acknowledgment:
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
34 *
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ==================================================================== */
48
49#include <openssl/aes.h>
50
51#include <assert.h>
52
53#include "../aes/internal.h"
54#include "../modes/internal.h"
55
56
57void AES_ctr128_encrypt(const uint8_t *in, uint8_t *out, size_t len,
58 const AES_KEY *key, uint8_t ivec[AES_BLOCK_SIZE],
59 uint8_t ecount_buf[AES_BLOCK_SIZE], unsigned int *num) {
60 CRYPTO_ctr128_encrypt(in, out, len, key, ivec, ecount_buf, num, AES_encrypt);
61}
62
63void AES_ecb_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key,
64 const int enc) {
65 assert(in && out && key);
66 assert((AES_ENCRYPT == enc) || (AES_DECRYPT == enc));
67
68 if (AES_ENCRYPT == enc) {
69 AES_encrypt(in, out, key);
70 } else {
71 AES_decrypt(in, out, key);
72 }
73}
74
75void AES_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t len,
76 const AES_KEY *key, uint8_t *ivec, const int enc) {
77 if (hwaes_capable()) {
78 aes_hw_cbc_encrypt(in, out, len, key, ivec, enc);
79 return;
80 }
81
82#if defined(AES_NOHW_CBC)
83 if (!vpaes_capable()) {
84 aes_nohw_cbc_encrypt(in, out, len, key, ivec, enc);
85 return;
86 }
87#endif
88 if (enc) {
89 CRYPTO_cbc128_encrypt(in, out, len, key, ivec, AES_encrypt);
90 } else {
91 CRYPTO_cbc128_decrypt(in, out, len, key, ivec, AES_decrypt);
92 }
93}
94
95void AES_ofb128_encrypt(const uint8_t *in, uint8_t *out, size_t length,
96 const AES_KEY *key, uint8_t *ivec, int *num) {
97 unsigned num_u = (unsigned)(*num);
98 CRYPTO_ofb128_encrypt(in, out, length, key, ivec, &num_u, AES_encrypt);
99 *num = (int)num_u;
100}
101
102void AES_cfb128_encrypt(const uint8_t *in, uint8_t *out, size_t length,
103 const AES_KEY *key, uint8_t *ivec, int *num,
104 int enc) {
105 unsigned num_u = (unsigned)(*num);
106 CRYPTO_cfb128_encrypt(in, out, length, key, ivec, &num_u, enc, AES_encrypt);
107 *num = (int)num_u;
108}
109