PolarSSL v1.2.9
des.h
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1 
27 #ifndef POLARSSL_DES_H
28 #define POLARSSL_DES_H
29 
30 #include "config.h"
31 
32 #include <string.h>
33 
34 #ifdef _MSC_VER
35 #include <basetsd.h>
36 typedef UINT32 uint32_t;
37 #else
38 #include <inttypes.h>
39 #endif
40 
41 #define DES_ENCRYPT 1
42 #define DES_DECRYPT 0
43 
44 #define POLARSSL_ERR_DES_INVALID_INPUT_LENGTH -0x0032
46 #define DES_KEY_SIZE 8
47 
48 #if !defined(POLARSSL_DES_ALT)
49 // Regular implementation
50 //
51 
55 typedef struct
56 {
57  int mode;
58  uint32_t sk[32];
59 }
61 
65 typedef struct
66 {
67  int mode;
68  uint32_t sk[96];
69 }
71 
72 #ifdef __cplusplus
73 extern "C" {
74 #endif
75 
84 void des_key_set_parity( unsigned char key[DES_KEY_SIZE] );
85 
96 int des_key_check_key_parity( const unsigned char key[DES_KEY_SIZE] );
97 
105 int des_key_check_weak( const unsigned char key[DES_KEY_SIZE] );
106 
115 int des_setkey_enc( des_context *ctx, const unsigned char key[DES_KEY_SIZE] );
116 
125 int des_setkey_dec( des_context *ctx, const unsigned char key[DES_KEY_SIZE] );
126 
135 int des3_set2key_enc( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 2] );
136 
145 int des3_set2key_dec( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 2] );
146 
155 int des3_set3key_enc( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 3] );
156 
165 int des3_set3key_dec( des3_context *ctx, const unsigned char key[DES_KEY_SIZE * 3] );
166 
176 int des_crypt_ecb( des_context *ctx,
177  const unsigned char input[8],
178  unsigned char output[8] );
179 
190 int des_crypt_cbc( des_context *ctx,
191  int mode,
192  size_t length,
193  unsigned char iv[8],
194  const unsigned char *input,
195  unsigned char *output );
196 
206 int des3_crypt_ecb( des3_context *ctx,
207  const unsigned char input[8],
208  unsigned char output[8] );
209 
222 int des3_crypt_cbc( des3_context *ctx,
223  int mode,
224  size_t length,
225  unsigned char iv[8],
226  const unsigned char *input,
227  unsigned char *output );
228 
229 #ifdef __cplusplus
230 }
231 #endif
232 
233 #else /* POLARSSL_DES_ALT */
234 #include "des_alt.h"
235 #endif /* POLARSSL_DES_ALT */
236 
237 #ifdef __cplusplus
238 extern "C" {
239 #endif
240 
246 int des_self_test( int verbose );
247 
248 #ifdef __cplusplus
249 }
250 #endif
251 
252 #endif /* des.h */