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Hi, SL3NCK calculates the 7 NCK's levels used for unlocking SL3 phones. SL3NCK("0000000000000000000000000000000000000000", "080803080307030003010002020305") _output: #pw+283037116581614+1# #pw+235518432205471+2# #pw+595388505163502+3# #pw+415333744058839+4# #pw+259299316395048+5# #pw+467723677207791+6# #pw+690485095019780+7# You can test run and see is the same code output as in the following websites: http://www.francesco-pompili.it/Hash2Nck.aspx http://nokia-sl3.com/nck.php #include <Crypt.au3> ; #Function# =========================================================================================================== ; Name...........: SL3NCK ; Description ...: Calculates 7 NCK levels for SL3. ; Syntax.........: SL3NCK("TARGET_HASH","MASTER_SP_CODE") ; Return values .: string with 7 levels NCK's. ; Author ........: kyan (autoIT code), oOXTCOo (PHP code). ; Remarks .......: $TargetHash is a string with 40 hex chars. $MasterSP is a string with 30 digits. ; Related .......: SimlFeistel(), _packH() ; Requeires .....: #include <Crypt.au3> ; =============================================================================================================================== Func SL3NCK($TargetHash, $MasterSP) $result = '' $MasterSP = '000000' & StringMid($MasterSP, 0 + 1, 24) For $i = 1 To 7 $hash = _packH('0' & $i & $TargetHash) $hash = StringTrimLeft(StringUpper(_Crypt_HashData($hash, $CALG_SHA1)), 2) $precode8 = StringMid($MasterSP, 0 + 1, 16) $precode7 = StringMid($MasterSP, 17 + 1, 30) For $magic = 0 To 1 $sh = _packH('0' & $magic & StringMid($hash, 0 + 1, 32) & $precode8) $sh = StringTrimLeft(StringUpper(_Crypt_HashData($sh, $CALG_SHA1)), 2) $precode = SimlFeistel($sh, $precode7) $precode7 = $precode $sh = _packH('0' & $magic & StringMid($hash, 0 + 1, 32) & $precode) $sh = StringTrimLeft(StringUpper(_Crypt_HashData($sh, $CALG_SHA1), 2) $precode = SimlFeistel($sh, $precode8, 8) $precode8 = $precode Next $final = $precode8 & $precode7 $x = 1 $nck = '' For $y = 1 To 15 $nck = $nck & StringMid($final, $x + 1, 1) $x += 2 Next $result &= '#pw+' & $nck & '+' & $i & '#' & @CRLF Next Return $result EndFunc ;==>SL3NCK Func SimlFeistel($sh, $precode, $bytes = 7) Local $result = '', $j = 0, $nck = '', $nck2 = '' While ($j < ($bytes * 2)) $nck = StringMid($sh, $j + 1, 1) & StringMid($sh, $j + 2, 1) $nck2 = StringMid($precode, $j + 1, 1) + StringMid($precode, $j + 2, 1) $prenck = Mod((Dec($nck) + Dec($nck2)), 10) $result = $result & '0' & $prenck $j += 2 WEnd Return $result EndFunc ;==>SimlFeistel Func _packH($sInput) Local $sReply = "" For $xx = 1 To StringLen($sInput) Step 2 $sReply &= Chr(Dec(StringMid($sInput, $xx, 2))) Next Return $sReply EndFunc ;==>_packH by Luigi Hope it comes handy for someone PS: You can't unlock a phone only with this. Google is your friend.