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# CyberStep (Cosmic Break) KAR format
# script for QuickBMS http://quickbms.aluigi.org
set MEMORY_FILE10 string "
unsigned int kar_gethash(const char* m_String, int dwLength)
{
unsigned int dwHash = 0;
for(int i = 0; i < dwLength; ++i)
{
dwHash = 31 * dwHash + m_String[i];
}
return dwHash;
}
static unsigned long mt_table[624];
static int mt_state = 0;
void mt_init(unsigned long dwSeed)
{
mt_table[0] = dwSeed & 0xffffffffUL;
for (mt_state = 1; mt_state < 624; ++mt_state)
{
mt_table[mt_state] = (69069 * mt_table[mt_state - 1]) & 0xffffffffUL;
}
}
unsigned long mt_get_rand(void)
{
unsigned long mt_result;
static unsigned long mt_magic[2] = {0x0UL, 0x9908b0dfUL};
int j = 0;
if ( mt_state >= 624 )
{
if (mt_state == 624 + 1)
mt_init(5489UL);
for (j = 0; j < 624 - 397; j++)
{
mt_result = (mt_table[j] & 0x80000000UL) | (mt_table[j + 1] & 0x7fffffffUL);
mt_table[j] = mt_table[j + 397] ^ (mt_result >> 1) ^ mt_magic[mt_result & 0x1UL];
}
for (;j < 624 - 1; j++)
{
mt_result = (mt_table[j] & 0x80000000UL) | (mt_table[j + 1] & 0x7fffffffUL);
mt_table[j] = mt_table[j + (397 - 624)] ^ (mt_result >> 1) ^ mt_magic[mt_result & 0x1UL];
}
mt_result = (mt_table[624 - 1] & 0x80000000UL) | (mt_table[0] & 0x7fffffffUL);
mt_table[624 - 1] = mt_table[397 - 1] ^ (mt_result >> 1) ^ mt_magic[mt_result & 0x1UL];
mt_state = 0;
}
mt_result = mt_table[mt_state++];
mt_result ^= (mt_result >> 11);
mt_result ^= (mt_result << 7) & 0x9d2c5680UL;
mt_result ^= (mt_result << 15) & 0xefc60000UL;
mt_result ^= (mt_result >> 18);
mt_result = ((mt_result << 8) & 0xff00ff00UL) | ((mt_result >> 8) & 0xff00ffUL);
return (mt_result << 16) | (mt_result >> 16);
}
void kar_decrypt(unsigned char* lpBuffer, unsigned int dwSeed, int dwSize)
{
mt_init(dwSeed);
for (int i = 0; i < dwSize; i++)
{
lpBuffer[i] ^= (unsigned char)mt_get_rand();
}
}
int swap_int32(int val)
{
val = ((val << 8) & 0xFF00FF00) | ((val >> 8) & 0xFF00FF );
return (val << 16) | ((val >> 16) & 0xFFFF);
}
void kar_rebuild_table(unsigned char* lpSrcBuffer, int dwSize)
{
int dwPosDest = 0;
int dwPosBegin = 4;
int dwBlocks = dwSize / 1024 + 1;
for (int i = 0; i < dwBlocks; i++)
{
char bCheck = 0;
int dwBlockSize = 0;
memcpy(&bCheck, lpSrcBuffer + dwPosBegin, 1);
memcpy(&dwBlockSize, lpSrcBuffer + dwPosBegin + 1, 4);
dwBlockSize = swap_int32(dwBlockSize);
memcpy(lpSrcBuffer + dwPosDest, lpSrcBuffer + dwPosBegin + 5, dwBlockSize);
dwPosBegin += dwBlockSize + 5;
dwPosDest += dwBlockSize;
}
}
"
endian big
comtype gzip
get ARCHIVE_SIZE asize
get TABLE_SIZE long
math TABLE_SIZE ^= 0x85FD91A1
math TABLE_OFFSET = ARCHIVE_SIZE
math TABLE_OFFSET -= TABLE_SIZE
string TABLE_KEY p= "%d" TABLE_OFFSET
strlen TABLE_KEY_LENGTH TABLE_KEY
log MEMORY_FILE TABLE_OFFSET TABLE_SIZE
calldll MEMORY_FILE10 "kar_gethash" "tcc" TABLE_HASH TABLE_KEY TABLE_KEY_LENGTH
calldll MEMORY_FILE10 "kar_decrypt" "tcc" RET MEMORY_FILE TABLE_HASH TABLE_SIZE
get ARCHIVE_NAME filename
if ARCHIVE_NAME == "keel.dat"
set ARCHIVE_PASSWORD string "dhfuhsudfh98vhdsovnfdhiouer8u8hgjbkjciudsuifsjdiosajfn"
calldll MEMORY_FILE10 "kar_rebuild_table" "tcc" RET MEMORY_FILE TABLE_SIZE
get DUMMY1 byte MEMORY_FILE #1,3
endif
get MD5_LENGTH short MEMORY_FILE
getdstring MD5_HASH MD5_LENGTH MEMORY_FILE
get TIMESTAMP longlong MEMORY_FILE
get DUMMY3 byte MEMORY_FILE #0,1,3
if DUMMY3 == 3
get COMPRESSION_STR_LENGTH short MEMORY_FILE
getdstring COMPRESSION COMPRESSION_STR_LENGTH MEMORY_FILE #deflate=-1 -> data is compressed with gzip
endif
get FILES long MEMORY_FILE
for i = 0 < FILES
get FIRST_PATH_LENGTH short MEMORY_FILE
getdstring FIRST_PATH FIRST_PATH_LENGTH MEMORY_FILE
get SECOND_PATH_LENGTH short MEMORY_FILE
getdstring SECOND_PATH SECOND_PATH_LENGTH MEMORY_FILE
get SIZE long MEMORY_FILE
get OFFSET longlong MEMORY_FILE
string FILE_KEY p= "%s%s%s" ARCHIVE_PASSWORD FIRST_PATH TIMESTAMP
strlen FILE_KEY_LENGTH FILE_KEY
callfunction EXTRACT_FILE 1
next i
startfunction EXTRACT_FILE
log MEMORY_FILE2 OFFSET SIZE
calldll MEMORY_FILE10 "kar_gethash" "tcc" FILE_HASH FILE_KEY FILE_KEY_LENGTH
calldll MEMORY_FILE10 "kar_decrypt" "tcc" RET MEMORY_FILE2 FILE_HASH SIZE
if DUMMY3 == 1 || DUMMY3 == 3
clog FIRST_PATH 0 SIZE SIZE MEMORY_FILE2
else
log FIRST_PATH 0 SIZE MEMORY_FILE2
endif
endfunctionERROR
120 calldll MEMORY_FILE10 "kar_rebuild_table" "tcc" RET MEMORY_FILE TABLE_SIZE
FILE
https://mega.nz/file/XhoEACQT#KOct1oyW9RkTqd4jIMTMIaVMrDlwTlaKzrgamHmBh34