TrueCrypt加密:TrueCrypt Mount更改加密卷密码(4)

1.TrueCrypt Mount更改加密卷密码
TrueCrypt项目中ChangePwd具体参数:

int ChangePwd (char *lpszVolume, 
               Password *oldPassword, 
               Password *newPassword, 
               int pkcs5, 
               HWND hwndDlg);

参数	类型	含义	示例
lpszVolume	char *	加密卷文件	NULL
oldPassword	Password	原密码
newPassword	Password	新密码
pkcs5	int	哈希算法	0
hwndDlg	HWND	传入的窗口句柄	NULL

2.实际调用

extern "C" __declspec(dllexport) int ChangePasswordC(char* szFile, char* szoldPassword, char* sznewPassowrd, HWND hwndDlg)  
{  
    char szFileName[TC_MAX_PATH+1];  
    int nStatus;  
    Password oldPassword;  
    Password newPassword;  
    int pkcs5;  
    strcpy(szFileName, szFile);  
    szFileName[strlen(szFile)] = 0;  
    strcpy((char *)oldPassword.Text, szoldPassword);  
    oldPassword.Length = strlen ((char *)oldPassword.Text);  
    strcpy((char *)newPassword.Text, sznewPassowrd);  
    newPassword.Length = strlen ((char *)newPassword.Text);  
    pkcs5 = 0;  
    nStatus = ChangePwd (szFileName, &oldPassword, &newPassword, pkcs5, hwndDlg);  
    if (nStatus == ERR_OS_ERROR  
        && GetLastError () == ERROR_ACCESS_DENIED  
        && IsUacSupported ()  
        && IsVolumeDeviceHosted (szFileName))  
    {  
        WaitCursor ();  
        nStatus = UacChangePwd (szFileName, &oldPassword, &newPassword, pkcs5, hwndDlg);  
        NormalCursor ();  
    }  
    burn (&oldPassword, sizeof (oldPassword));  
    burn (&newPassword, sizeof (newPassword));  
    if (nStatus == 0)  
    {  
        return 1;  
    }  
    return 0;  
}