mbed TLS v2.16.3: xtea.h Source File

mbed TLS v2.16.3

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
41 /* MBEDTLS_ERR_XTEA_HW_ACCEL_FAILED is deprecated and should not be used. */
42 #define MBEDTLS_ERR_XTEA_HW_ACCEL_FAILED -0x0029
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 }
59 mbedtls_xtea_context;
60
61 #else /* MBEDTLS_XTEA_ALT */
62 #include "xtea_alt.h"
63 #endif /* MBEDTLS_XTEA_ALT */
64
70 void mbedtls_xtea_init( mbedtls_xtea_context *ctx );
71
77 void mbedtls_xtea_free( mbedtls_xtea_context *ctx );
78
85 void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] );
86
97 int mbedtls_xtea_crypt_ecb( mbedtls_xtea_context *ctx,
98 int mode,
99 const unsigned char input[8],
100 unsigned char output[8] );
101
102 #if defined(MBEDTLS_CIPHER_MODE_CBC)
103
116 int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx,
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 */
mbedtls_xtea_setup
void mbedtls_xtea_setup(mbedtls_xtea_context *ctx, const unsigned char key[16])
XTEA key schedule.
mbedtls_xtea_init
void mbedtls_xtea_init(mbedtls_xtea_context *ctx)
Initialize XTEA context.
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_self_test
int mbedtls_xtea_self_test(int verbose)
Checkup routine.
mbedtls_xtea_free
void mbedtls_xtea_free(mbedtls_xtea_context *ctx)
Clear XTEA context.
mbedtls_xtea_context
XTEA context structure.
Definition: xtea.h:55
mbedtls_xtea_context::k
uint32_t k[4]
Definition: xtea.h:57
config.h
Configuration options (set of defines)
mbedtls_xtea_context
struct mbedtls_xtea_context mbedtls_xtea_context
XTEA context structure.
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.