mbed TLS v2.3.0
xtea.h
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1 
25 #ifndef MBEDTLS_XTEA_H
26 #define MBEDTLS_XTEA_H
27 
28 #if !defined(MBEDTLS_CONFIG_FILE)
29 #include "config.h"
30 #else
31 #include MBEDTLS_CONFIG_FILE
32 #endif
33 
34 #include <stddef.h>
35 #include <stdint.h>
36 
37 #define MBEDTLS_XTEA_ENCRYPT 1
38 #define MBEDTLS_XTEA_DECRYPT 0
39 
40 #define MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH -0x0028
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