mbed TLS v2.12.0

xtea.h
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1
6 /*
7 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
8 * SPDX-License-Identifier: Apache-2.0
9 *
10 * Licensed under the Apache License, Version 2.0 (the "License"); you may
11 * not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
18 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 *
22 * This file is part of mbed TLS (https://tls.mbed.org)
23 */
24 #ifndef MBEDTLS_XTEA_H
25 #define MBEDTLS_XTEA_H
26
27 #if !defined(MBEDTLS_CONFIG_FILE)
28 #include "config.h"
29 #else
30 #include MBEDTLS_CONFIG_FILE
31 #endif
32
33 #include <stddef.h>
34 #include <stdint.h>
35
36 #define MBEDTLS_XTEA_ENCRYPT 1
37 #define MBEDTLS_XTEA_DECRYPT 0
38
39 #define MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH -0x0028
40 #define MBEDTLS_ERR_XTEA_HW_ACCEL_FAILED -0x0029
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45
46 #if !defined(MBEDTLS_XTEA_ALT)
47 // Regular implementation
48 //
49
53 typedef struct
54 {
55 uint32_t k[4];
56 }
57 mbedtls_xtea_context;
58
59 #else /* MBEDTLS_XTEA_ALT */
60 #include "xtea_alt.h"
61 #endif /* MBEDTLS_XTEA_ALT */
62
68 void mbedtls_xtea_init( mbedtls_xtea_context *ctx );
69
75 void mbedtls_xtea_free( mbedtls_xtea_context *ctx );
76
83 void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] );
84
95 int mbedtls_xtea_crypt_ecb( mbedtls_xtea_context *ctx,
96 int mode,
97 const unsigned char input[8],
98 unsigned char output[8] );
99
100 #if defined(MBEDTLS_CIPHER_MODE_CBC)
101
114 int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx,
115 int mode,
116 size_t length,
117 unsigned char iv[8],
118 const unsigned char *input,
119 unsigned char *output);
120 #endif /* MBEDTLS_CIPHER_MODE_CBC */
121
127 int mbedtls_xtea_self_test( int verbose );
128
129 #ifdef __cplusplus
130 }
131 #endif
132
133 #endif /* xtea.h */
mbedtls_xtea_crypt_ecb
int mbedtls_xtea_crypt_ecb(mbedtls_xtea_context *ctx, int mode, const unsigned char input[8], unsigned char output[8])
XTEA cipher function.
mbedtls_xtea_crypt_cbc
int mbedtls_xtea_crypt_cbc(mbedtls_xtea_context *ctx, int mode, size_t length, unsigned char iv[8], const unsigned char *input, unsigned char *output)
XTEA CBC cipher function.
mbedtls_xtea_free
void mbedtls_xtea_free(mbedtls_xtea_context *ctx)
Clear XTEA context.
config.h
Configuration options (set of defines)
mbedtls_xtea_init
void mbedtls_xtea_init(mbedtls_xtea_context *ctx)
Initialize XTEA context.
mbedtls_xtea_setup
void mbedtls_xtea_setup(mbedtls_xtea_context *ctx, const unsigned char key[16])
XTEA key schedule.
mbedtls_xtea_self_test
int mbedtls_xtea_self_test(int verbose)
Checkup routine.
mbedtls_xtea_context
XTEA context structure.
Definition: xtea.h:53