"""

 Python 2.7 pseudocode

 Present by FORE

"""

from struct import pack, unpack

from ctypes import *

class ELIF(Structure):

 _fields_ = [ ('Signature',c_uint),

 ('ullStructSize',c_ulonglong),

 ('dwEncryptKey',c_uint),

 ('wFileName',c_ushort),

 ('FileName',c_wchar_p) ]

def get_encrypt_key(key):

 key ^= 0x1548E29C

 key ^= ((key>>0x18)^(key>>0x10)^(key>>0x08))

 return key and key&0x000000FF or 0xD7

def decode(buf,key):

 key = get_encrypt_key(key)

 length = len(buf)

 buf = list(unpack('B'*length,buf))

 for i in range(length):

  buf[i] ^= key

 buf = pack('B'*length,*buf)

 return buf

def main():

 elif = ELIF()

 # ... read something

 buf = decode(buf,eilf.dwEncryptKey)

//  IsHangulString

// Present by FORE

// http://foreblog.tistory.com/

#include <windows.h>

BOOL WINAPI IsHangulStringA(LPSTR lpString){
 BYTE   ch1,ch2;
 while(*lpString){
  ch1 = (BYTE)*lpString;
  if ( ch1 & 0x80 ){
   ch2 = (BYTE)*(lpString+1);
   if ( (ch1>0x80 && ch1<=0xA0) || (ch1>=0xB0 && ch1<=0xC5) ){
    if ( (ch2>0x40 && ch2<0x5B) || (ch2>0x60 && ch2<0x7B) || (ch2>0x80 && ch2<0xFF) )
     return TRUE;
   }
   else if ( ch1>0xA0 && ch1<0xB0 ){
    if ( (ch2>0x40 && ch2<0x5B) || (ch2>0x60 && ch2<0x7B) || (ch2>0x80 && ch2<0xA1) )
     return TRUE;
    if ( ch1 == 0xA4 ){ // 여기가 자모 코드. 자모 판별 필요 없을시 제거 가능.
     if ( ch2>0xA0 && ch2<0xFF )
      return TRUE;
    }
   }
   else if ( ch1 == 0xC6 ){
    if ( (ch2>0x40 && ch2<0x53 ) || (ch2>0xA0 && ch2<0xFF) )
     return TRUE;
   }
   else if ( ch1 > 0xC6 && ch1 < 0xC9 ){
    if ( ch2>0xA0 && ch2<0xFF )
     return TRUE;
   }
   lpString++;
  }
  lpString++;
 }
 return FALSE;
}

BOOL WINAPI IsHangulStringW(LPWSTR lpString){
 WCHAR   ch1;
 while(*lpString){
  ch1 = *lpString;
  if ( (ch1 >= 0xAC00 && ch1 <=0xD7A3)
   || (ch1 >= 0xA960 && ch1 <=0xA97C) // 이 밑부터 죄다 자모 코드
   || (ch1 >= 0xD7B0 && ch1 <=0xD7C6)
   || (ch1 >= 0xD7CB && ch1 <=0xD7FB)
   || (ch1 >= 0x3131 && ch1 <=0x318E) )
   return TRUE;
  lpString++;
 }
 return FALSE;
}

BOOL WINAPI IsHangulStringA(LPSTR lpString){
 BYTE   ch1,ch2;
 while(*lpString){
  ch1 = (BYTE)*lpString;
  if ( ch1 & 0x80 ){
   ch2 = (BYTE)*(lpString+1);
   if ( (((ch1>0x80 && ch1<=0xA0) || (ch1>=0xB0 && ch1<=0xC5)) && ((ch2>0x40 && ch2<0x5B) || (ch2>0x60 && ch2<0x7B) || (ch2>0x80 && ch2<0xFF)))
    || ((ch1>0xA0 && ch1<0xB0) && (ch2>0x40 && ch2<0x5B) || (ch2>0x60 && ch2<0x7B) || (ch2>0x80 && ch2<0xA1))
    || ((ch1 == 0xA4) && (ch2>0xA0 && ch2<0xFF))
    || ((ch1 == 0xC6) && ((ch2>0x40 && ch2<0x53 ) || (ch2>0xA0 && ch2<0xFF)))
    || ((ch1 > 0xC6 && ch1 < 0xC9) && (ch2>0xA0 && ch2<0xFF)) )
     return TRUE;
   lpString++;
  }
  lpString++;
 }
 return FALSE;
}