des.h

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#ifndef XYSSL_DES_H
#define XYSSL_DES_H
 
#define DES_ENCRYPT     0
#define DES_DECRYPT     1
 
typedef struct
{
    int mode;                   
    unsigned long sk[32];       
}
des_context;
 
typedef struct
{
    int mode;                   
    unsigned long sk[96];       
}
des3_context;
 
#ifdef __cplusplus
extern "C" {
#endif
 
void des_setkey_enc( des_context *ctx, unsigned char key[8] );
 
void des_setkey_dec( des_context *ctx, unsigned char key[8] );
 
void des3_set2key_enc( des3_context *ctx, unsigned char key[16] );
 
void des3_set2key_dec( des3_context *ctx, unsigned char key[16] );
 
void des3_set3key_enc( des3_context *ctx, unsigned char key[24] );
 
void des3_set3key_dec( des3_context *ctx, unsigned char key[24] );
 
void des_crypt_ecb( des_context *ctx,
                    unsigned char input[8],
                    unsigned char output[8] );
 
void des_crypt_cbc( des_context *ctx,
                    int mode,
                    int length,
                    unsigned char iv[8],
                    unsigned char *input,
                    unsigned char *output );
 
void des3_crypt_ecb( des3_context *ctx,
                     unsigned char input[8],
                     unsigned char output[8] );
 
void des3_crypt_cbc( des3_context *ctx,
                     int mode,
                     int length,
                     unsigned char iv[8],
                     unsigned char *input,
                     unsigned char *output );
 
/*
 * \brief          Checkup routine
 *
 * \return         0 if successful, or 1 if the test failed
 */
int des_self_test( int verbose );
 
#ifdef __cplusplus
}
#endif
 
#endif /* des.h */