mbed TLS v2.28.0
xtea.h
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1 
6 /*
7  * Copyright The Mbed TLS Contributors
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 #ifndef MBEDTLS_XTEA_H
23 #define MBEDTLS_XTEA_H
24 
25 #if !defined(MBEDTLS_CONFIG_FILE)
26 #include "mbedtls/config.h"
27 #else
28 #include MBEDTLS_CONFIG_FILE
29 #endif
30 
31 #include <stddef.h>
32 #include <stdint.h>
33 
34 #define MBEDTLS_XTEA_ENCRYPT 1
35 #define MBEDTLS_XTEA_DECRYPT 0
36 
38 #define MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH -0x0028
39 
40 /* MBEDTLS_ERR_XTEA_HW_ACCEL_FAILED is deprecated and should not be used. */
42 #define MBEDTLS_ERR_XTEA_HW_ACCEL_FAILED -0x0029
43 
44 #ifdef __cplusplus
45 extern "C" {
46 #endif
47 
48 #if !defined(MBEDTLS_XTEA_ALT)
49 // Regular implementation
50 //
51 
55 typedef struct mbedtls_xtea_context
56 {
57  uint32_t k[4];
58 }
60 
61 #else /* MBEDTLS_XTEA_ALT */
62 #include "xtea_alt.h"
63 #endif /* MBEDTLS_XTEA_ALT */
64 
71 
78 
85 void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] );
86 
98  int mode,
99  const unsigned char input[8],
100  unsigned char output[8] );
101 
102 #if defined(MBEDTLS_CIPHER_MODE_CBC)
103 
117  int mode,
118  size_t length,
119  unsigned char iv[8],
120  const unsigned char *input,
121  unsigned char *output);
122 #endif /* MBEDTLS_CIPHER_MODE_CBC */
123 
124 #if defined(MBEDTLS_SELF_TEST)
125 
131 int mbedtls_xtea_self_test( int verbose );
132 
133 #endif /* MBEDTLS_SELF_TEST */
134 
135 #ifdef __cplusplus
136 }
137 #endif
138 
139 #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.
uint32_t k[4]
Definition: xtea.h:57
struct mbedtls_xtea_context mbedtls_xtea_context
XTEA context structure.
int mbedtls_xtea_self_test(int verbose)
Checkup routine.
XTEA context structure.
Definition: xtea.h:55