des.h
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#ifndef _DES_H
#define _DES_H
#include <windows.h>
#define DES_KEY_LEN 8
#define DES_DATA_LEN 64
typedef enum {
S_DES_SUCCESS,
S_DES_FAIL,
S_DDES_FAIL,
S_DES_DATALEN_TOO_BIG,
S_DES_KEYLEN_TOO_BIG,
S_DES_OPEN_FILE_ERROR
}STATUS_DES;
#ifdef __cplusplus
extern "C"
{
#endif
/*
Function Name: des
Function Description: use DES to encrypt the data;
intput:
data: the data need to be encrypted
datelen: datalen
key: 64 bit key (Must be 64bit)
output:
data: encrypted data by DES
return:
S_DES_SUCCESS: indicates success;
S_DES_FAIL: indicates fail;
*/
__declspec(dllexport) INT32 __stdcall WriteDataToFile(BYTE *data,INT32 datelen, BYTE *key, char* pcPathBuf);
/*
Function Name: Ddes
Function Description: use DES to Decrypt the data;
intput:
data: the data need to be Decrypt
datelen: datalen
key: 64 bit key (Must be 64bit and be the same as the key used in des() function)
output:
data: Decrypt data by DES
*/
__declspec(dllexport) INT32 __stdcall ReadDataFromFile(BYTE *data,INT32 datelen, BYTE *key, char* pcPathBuf);
#ifdef __cplusplus
};
#endif
#endif