标签:str 功能 缓冲区 ++i main 名称 mbr 磁盘 word
功能:为初始化文件中指定的条目取得字串
函数原型:
DWORD GetPrivateProfileString(
LPCTSTR lpAppName, // 指定想要查找条目的名称
LPCTSTR lpKeyName, // 指定想要获取的项名或条目名
LPCTSTR lpDefault, // 指定的条目没有时返回的默认值
LPTSTR lpReturnedString, // 指定一个字串缓冲区
DWORD nSize, // 指定缓冲区大小
LPCTSTR lpFileName // 初始化文件名字
);
使用:
GetPrivateProfileStringA("Locker","psw","hello",keys,256,".\\Config.ini");
具体关于Windows文件的操作可参考:Windows文件操作
功能:可打开或创建以下对象,并返回可访问的句柄:
函数原型:
HANDLE CreateFile(
LPCTSTR lpFileName,
DWORD dwDesiredAccess,
DWORD dwShareMode,
LPSECURITY_ATTRIBUTES lpSecurityAttributes,
DWORD dwCreationDisposition,
DWORD dwFlagsAndAttributes,
HANDLE hTemplateFile
);
使用:
hFile = CreateFileA("\\\\.\\\\physicaldrive0",
GENERIC_READ,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
功能:说明在一个文件中设置当前的读取位置
返回值:返回一个新位置,采用从文件起始处开始算起的一个字节偏移量。
函数原型:
DWORD SetFilePointer(
HANDLE hFile, // handle of file
LONG lDistanceToMove, // number of bytes to move file pointer
PLONG lpDistanceToMoveHigh,
// pointer to high-order DWORD of
// distance to move
DWORD dwMoveMethod // how to move
);
使用:
HANDLE hFile = NULL;
int offset = 0;
hFile = CreateFileA("\\\\.\\\\physicaldrive0",
GENERIC_READ,
FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,NULL);
if (hFile==INVALID_HANDLE_VALUE)
{
MessageBoxA(NULL,"不能打开 \\\\.\\\\physicaldrive0..","Error",MB_OK | MB_ICONERROR);
return 0;
}
SetFilePointer(hFile,offset,0,0);
功能:从文件指针指向的位置开始将数据读出到一个文件中,且支持同步和异步操作。
与fread函数相比,这个函数要明显灵活的多。该函数能够操作通信设备、管道、套接字以及邮槽。
函数原型:
BOOL ReadFile(
HANDLE hFile, // 文件句柄
LPVOID lpBuffer, // 保存数据的缓冲区
DWORD nNumberOfBytesToRead, // 要读入的字节数
LPDWORD lpNumberOfBytesRead, // 指向实际读取字节数的指针
LPOVERLAPPED lpOverlapped // pointer to structure for data
);
功能:可以将一个数据写入一个文件
与fwrite相比,这个函数要明显灵活的多。该函数能够操作通信设备、管道、套接字以及邮槽。
函数原型:
BOOL WriteFile(
HANDLE hFile, // 文件句柄
LPCVOID lpBuffer, // 指向将写入文件的数据缓冲区
DWORD nNumberOfBytesToWrite, // 要写入的字节数
LPDWORD lpNumberOfBytesWritten, // 实际写入文件的字节数
LPOVERLAPPED lpOverlapped // pointer to structure for overlapped I/O
);
#include <windows.h>
#include "bin.h"
#define cryptFlag 445
int ReadDisk(int Id,int num,unsigned char *buffer);
int WriteDisk(int Id,int num,unsigned char* buffer);
int __stdcall WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd )
{
char keys[256]={0}; //buffer,缓冲区,用来保存ini配置文件里面输入的密码
unsigned char mbr[512]={0}; //用于保存从硬盘MBR里面读取出来的原始的MBR信息的
unsigned char len;//255
int i = 0;
GetPrivateProfileStringA("Locker","psw","left",keys,256,".\\Config.ini");
len = strlen(keys);
if (len==0 || len>=18)
{
MessageBoxA(NULL,"错误!密码长度建议控制在0-18内..","Error",MB_OK | MB_ICONERROR);
exit(-1);
}
byte XResult=0; //密码异或值
for (i= 0; i < len; ++i)
XResult^=keys[i];
if(ReadDisk(0,1,mbr)==0)
{
MessageBoxA(NULL,"Read MBR failed!","Error",MB_OK | MB_ICONERROR);
exit(-1);
}
if (mbr[cryptFlag] == 0x16)
{
MessageBoxA(NULL,"错误!硬盘已加锁,请不要重复加锁操作..","Error",MB_OK | MB_ICONERROR);
exit(-1);
}
mbr[cryptFlag] = 0x16;
for (i = 0; i < 64; ++i)
mbr[446+i]^=XResult;
WriteDisk(2,1,mbr);//将原始引导程序保存到第3扇区
memcpy(lock_disk+cryptFlag,mbr+cryptFlag,67);
WriteDisk(0,1,lock_disk);//写入加密的MBR
//MessageBoxA(NULL,"恭喜你加锁成功了!!!\n请不要重复加锁!\n","Success",MB_OK | MB_ICONINFORMATION);
return 0;
}
int ReadDisk(int Id,int num,unsigned char *buffer)
{
/*
读取扇区
id = ID号
num = 读取数量
成功返回读取字节数
*/
HANDLE hFile=NULL;
int offset=0;
int ReadSize=0;
DWORD Readed=0;
offset = Id*512;
ReadSize = num*512;
if (buffer==NULL)
{
return ReadSize;
}
hFile = CreateFileA("\\\\.\\\\physicaldrive0",
GENERIC_READ,
FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,NULL);
if (hFile==INVALID_HANDLE_VALUE)
{
MessageBoxA(NULL,"不能打开 \\\\.\\\\physicaldrive0..","Error",MB_OK | MB_ICONERROR);
return 0;
}
SetFilePointer(hFile,offset,0,0);
ReadFile(hFile,buffer,ReadSize,&Readed,NULL);
CloseHandle(hFile);
return Readed;
}
int WriteDisk(int Id,int num,unsigned char* buffer)
{
/*
写扇区
*/
HANDLE hFile = NULL;
int WriteSize = 0;
int offset = 0;
DWORD Writed = 0;
offset = Id*512;
WriteSize = num*512;
if (buffer==NULL)
{
return WriteSize;
}
//Open it
hFile = CreateFileA("\\\\.\\\\physicaldrive0",1073741824, 1, 0, 3, 128, 0);
if (hFile==INVALID_HANDLE_VALUE)
{
MessageBoxA(NULL,"不能打开 \\\\.\\\\physicaldrive0..","Error",MB_OK | MB_ICONERROR);
return 0;
}
SetFilePointer (hFile, offset, 0, 0);
WriteFile(hFile,buffer,WriteSize,&Writed,0);
CloseHandle(hFile);
return WriteSize;
}
标签:str 功能 缓冲区 ++i main 名称 mbr 磁盘 word
原文地址:https://www.cnblogs.com/coolcpp/p/hardware-encrypt.html