mbed TLS v2.7.6
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 #if !defined(MBEDTLS_XTEA_ALT)
43 // Regular implementation
44 //
45 
46 #ifdef __cplusplus
47 extern "C" {
48 #endif
49 
53 typedef struct
54 {
55  uint32_t k[4];
56 }
58 
65 
72 
79 void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] );
80 
92  int mode,
93  const unsigned char input[8],
94  unsigned char output[8] );
95 
96 #if defined(MBEDTLS_CIPHER_MODE_CBC)
97 
111  int mode,
112  size_t length,
113  unsigned char iv[8],
114  const unsigned char *input,
115  unsigned char *output);
116 #endif /* MBEDTLS_CIPHER_MODE_CBC */
117 
118 #ifdef __cplusplus
119 }
120 #endif
121 
122 #else /* MBEDTLS_XTEA_ALT */
123 #include "xtea_alt.h"
124 #endif /* MBEDTLS_XTEA_ALT */
125 
126 #ifdef __cplusplus
127 extern "C" {
128 #endif
129 
135 int mbedtls_xtea_self_test( int verbose );
136 
137 #ifdef __cplusplus
138 }
139 #endif
140 
141 #endif /* xtea.h */
int mbedtls_xtea_crypt_ecb(mbedtls_xtea_context *ctx, int mode, const unsigned char input[8], unsigned char output[8])
XTEA cipher function.
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.
void mbedtls_xtea_free(mbedtls_xtea_context *ctx)
Clear XTEA context.
Configuration options (set of defines)
void mbedtls_xtea_init(mbedtls_xtea_context *ctx)
Initialize XTEA context.
void mbedtls_xtea_setup(mbedtls_xtea_context *ctx, const unsigned char key[16])
XTEA key schedule.
int mbedtls_xtea_self_test(int verbose)
Checkup routine.
XTEA context structure.
Definition: xtea.h:53