des.h

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#ifndef POLARSSL_DES_H
#define POLARSSL_DES_H
 
#if !defined(POLARSSL_CONFIG_FILE)
#include "config.h"
#else
#include POLARSSL_CONFIG_FILE
#endif
 
#include <string.h>
 
#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
#include <basetsd.h>
typedef UINT32 uint32_t;
#else
#include <inttypes.h>
#endif
 
#define DES_ENCRYPT     1
#define DES_DECRYPT     0
 
#define POLARSSL_ERR_DES_INVALID_INPUT_LENGTH              -0x0032  
#define DES_KEY_SIZE    8
 
#if !defined(POLARSSL_DES_ALT)
// Regular implementation
//
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct
{
    int mode;                   
    uint32_t sk[32];            
}
des_context;
 
typedef struct
{
    int mode;                   
    uint32_t sk[96];            
}
des3_context;
 
void des_init( des_context *ctx );
 
void des_free( des_context *ctx );
 
void des3_init( des3_context *ctx );
 
void des3_free( des3_context *ctx );
 
void des_key_set_parity( unsigned char key[DES_KEY_SIZE] );
 
int des_key_check_key_parity( const unsigned char key[DES_KEY_SIZE] );
 
int des_key_check_weak( const unsigned char key[DES_KEY_SIZE] );
 
int des_setkey_enc( des_context *ctx, const unsigned char key[DES_KEY_SIZE] );
 
int des_setkey_dec( des_context *ctx, const unsigned char key[DES_KEY_SIZE] );
 
int des3_set2key_enc( des3_context *ctx,
                      const unsigned char key[DES_KEY_SIZE * 2] );
 
int des3_set2key_dec( des3_context *ctx,
                      const unsigned char key[DES_KEY_SIZE * 2] );
 
int des3_set3key_enc( des3_context *ctx,
                      const unsigned char key[DES_KEY_SIZE * 3] );
 
int des3_set3key_dec( des3_context *ctx,
                      const unsigned char key[DES_KEY_SIZE * 3] );
 
int des_crypt_ecb( des_context *ctx,
                    const unsigned char input[8],
                    unsigned char output[8] );
 
#if defined(POLARSSL_CIPHER_MODE_CBC)
int des_crypt_cbc( des_context *ctx,
                    int mode,
                    size_t length,
                    unsigned char iv[8],
                    const unsigned char *input,
                    unsigned char *output );
#endif /* POLARSSL_CIPHER_MODE_CBC */
 
int des3_crypt_ecb( des3_context *ctx,
                     const unsigned char input[8],
                     unsigned char output[8] );
 
#if defined(POLARSSL_CIPHER_MODE_CBC)
int des3_crypt_cbc( des3_context *ctx,
                     int mode,
                     size_t length,
                     unsigned char iv[8],
                     const unsigned char *input,
                     unsigned char *output );
#endif /* POLARSSL_CIPHER_MODE_CBC */
 
#ifdef __cplusplus
}
#endif
 
#else  /* POLARSSL_DES_ALT */
#include "des_alt.h"
#endif /* POLARSSL_DES_ALT */
 
#ifdef __cplusplus
extern "C" {
#endif
 
int des_self_test( int verbose );
 
#ifdef __cplusplus
}
#endif
 
#endif /* des.h */