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md5.au3
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md5.au3
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#include <Array.au3>
#cs
# AutoIt3 MD5
# https://github.com/genius257/au3-md5
#
# Copyright 2021, Anders Pedersen
# https://green-tag.dk
#
# Licensed under the MIT license:
# https://opensource.org/licenses/MIT
#
# Based on
# https://github.com/blueimp/JavaScript-MD5
#ce
Func md5($string, $key = Null, $raw = False)
If Null = $key Then
If Not $raw Then
Return hexMD5($string)
EndIf
Return rawMD5($string)
EndIf
If Not $raw Then
Return hexHMACMD5($key, $string)
EndIf
Return rawHMACMD5($key, $string)
EndFunc
Func hexMD5($s)
Return rstr2hex(rawMD5($s))
EndFunc
Func rawMD5($s)
Return rstrMD5(str2rstrUTF8($s))
EndFunc
Func hexHMACMD5($k, $d)
Return rstr2hex(rawHMACMD5($k, $d))
EndFunc
Func rawHMACMD5($k, $d)
Return rstrHMACMD5(str2rstrUTF8($k), str2rstrUTF8($d))
EndFunc
Func str2rstrUTF8($input)
Return BinaryToString(StringToBinary($input, 4), 1)
EndFunc
Func rstr2hex($input)
Local $hexTab = '0123456789abcdef'
Local $output = ''
Local $x
Local $i
For $i = 0 To StringLen($input) - 1 Step +1
$x = Asc(StringMid($input, $i + 1, 1))
$output &= StringMid($hexTab, BitAND(UnsignedRightShift($x, 4), 0x0f) + 1, 1) & StringMid($hexTab, BitAND($x, 0x0f) + 1, 1)
Next
Return $output
EndFunc
Func rstrMD5($s)
Return binl2rstr(binlMD5(rstr2binl($s), StringLen($s) * 8))
EndFunc
Func rstrHMACMD5($key, $data)
Local $i
Local $bkey = rstr2binl($key)
Local $ipad[16]
Local $opad[16]
Local $hash
$ipad[15] = Default
$opad[15] = Default
if (StringLen($bkey) > 16) Then
$bkey = binlMD5($bkey, StringLen($key) * 8)
EndIf
For $i = 0 To 16 - 1 Step +1
$ipad[$i] = BitXOR(Execute("$bkey[$i]"), 0x36363636)
$opad[$i] = BitXOR(Execute("$bkey[$i]"), 0x5c5c5c5c)
Next
$hash = binlMD5(__ArrayConcatenate($ipad, rstr2binl($data)), 512 + StringLen($data) * 8)
Return binl2rstr(binlMD5(__ArrayConcatenate($opad, $hash), 512 + 128))
EndFunc
Func rstr2binl($input)
Local $i
Local $output[BitShift(StringLen($input) * 8, 5) + 1]
For $i = 0 To UBound($output) - 1 Step +1
$output[$i] = 0
Next
Local $length8 = StringLen($input) * 8
For $i = 0 To $length8 - 1 Step +8
$output[BitShift($i, 5)] = BitOR($output[BitShift($i, 5)], BitShift(BitAND(Asc(StringMid($input, $i / 8 + 1)), 0xff), Mod($i, 32) * -1))
Next
return $output
EndFunc
Func binlMD5($x, $len)
; append padding
Redim $x[BitShift($len, 5) + 1] ; FIXME
$x[BitShift($len, 5)] = BitOR($x[BitShift($len, 5)], BitShift(0x80, Mod($len, 32) * -1))
Redim $x[BitShift(UnsignedRightShift(($len + 64), 9), 4 * -1) + 14 + 1] ; FIXME
$x[BitShift(BitShift(($len + 64), 9), 4 * -1) + 14] = $len
Local $i
Local $olda
Local $oldb
Local $oldc
Local $oldd
Local $a = 1732584193
Local $b = -271733879
Local $c = -1732584194
Local $d = 271733878
For $i = 0 To UBound($x) - 1 Step +16
$olda = $a
$oldb = $b
$oldc = $c
$oldd = $d
$a = md5ff($a, $b, $c, $d, $x[$i], 7, -680876936)
$d = md5ff($d, $a, $b, $c, $x[$i + 1], 12, -389564586)
$c = md5ff($c, $d, $a, $b, $x[$i + 2], 17, 606105819)
$b = md5ff($b, $c, $d, $a, $x[$i + 3], 22, -1044525330)
$a = md5ff($a, $b, $c, $d, $x[$i + 4], 7, -176418897)
$d = md5ff($d, $a, $b, $c, $x[$i + 5], 12, 1200080426)
$c = md5ff($c, $d, $a, $b, $x[$i + 6], 17, -1473231341)
$b = md5ff($b, $c, $d, $a, $x[$i + 7], 22, -45705983)
$a = md5ff($a, $b, $c, $d, $x[$i + 8], 7, 1770035416)
$d = md5ff($d, $a, $b, $c, $x[$i + 9], 12, -1958414417)
$c = md5ff($c, $d, $a, $b, $x[$i + 10], 17, -42063)
$b = md5ff($b, $c, $d, $a, $x[$i + 11], 22, -1990404162)
$a = md5ff($a, $b, $c, $d, $x[$i + 12], 7, 1804603682)
$d = md5ff($d, $a, $b, $c, $x[$i + 13], 12, -40341101)
$c = md5ff($c, $d, $a, $b, $x[$i + 14], 17, -1502002290)
$b = md5ff($b, $c, $d, $a, Execute("$x[$i + 15]"), 22, 1236535329)
$a = md5gg($a, $b, $c, $d, $x[$i + 1], 5, -165796510)
$d = md5gg($d, $a, $b, $c, $x[$i + 6], 9, -1069501632)
$c = md5gg($c, $d, $a, $b, $x[$i + 11], 14, 643717713)
$b = md5gg($b, $c, $d, $a, $x[$i], 20, -373897302)
$a = md5gg($a, $b, $c, $d, $x[$i + 5], 5, -701558691)
$d = md5gg($d, $a, $b, $c, $x[$i + 10], 9, 38016083)
$c = md5gg($c, $d, $a, $b, Execute("$x[$i + 15]"), 14, -660478335)
$b = md5gg($b, $c, $d, $a, $x[$i + 4], 20, -405537848)
$a = md5gg($a, $b, $c, $d, $x[$i + 9], 5, 568446438)
$d = md5gg($d, $a, $b, $c, $x[$i + 14], 9, -1019803690)
$c = md5gg($c, $d, $a, $b, $x[$i + 3], 14, -187363961)
$b = md5gg($b, $c, $d, $a, $x[$i + 8], 20, 1163531501)
$a = md5gg($a, $b, $c, $d, $x[$i + 13], 5, -1444681467)
$d = md5gg($d, $a, $b, $c, $x[$i + 2], 9, -51403784)
$c = md5gg($c, $d, $a, $b, $x[$i + 7], 14, 1735328473)
$b = md5gg($b, $c, $d, $a, $x[$i + 12], 20, -1926607734)
$a = md5hh($a, $b, $c, $d, $x[$i + 5], 4, -378558)
$d = md5hh($d, $a, $b, $c, $x[$i + 8], 11, -2022574463)
$c = md5hh($c, $d, $a, $b, $x[$i + 11], 16, 1839030562)
$b = md5hh($b, $c, $d, $a, $x[$i + 14], 23, -35309556)
$a = md5hh($a, $b, $c, $d, $x[$i + 1], 4, -1530992060)
$d = md5hh($d, $a, $b, $c, $x[$i + 4], 11, 1272893353)
$c = md5hh($c, $d, $a, $b, $x[$i + 7], 16, -155497632)
$b = md5hh($b, $c, $d, $a, $x[$i + 10], 23, -1094730640)
$a = md5hh($a, $b, $c, $d, $x[$i + 13], 4, 681279174)
$d = md5hh($d, $a, $b, $c, $x[$i], 11, -358537222)
$c = md5hh($c, $d, $a, $b, $x[$i + 3], 16, -722521979)
$b = md5hh($b, $c, $d, $a, $x[$i + 6], 23, 76029189)
$a = md5hh($a, $b, $c, $d, $x[$i + 9], 4, -640364487)
$d = md5hh($d, $a, $b, $c, $x[$i + 12], 11, -421815835)
$c = md5hh($c, $d, $a, $b, Execute("$x[$i + 15]"), 16, 530742520)
$b = md5hh($b, $c, $d, $a, $x[$i + 2], 23, -995338651)
$a = md5ii($a, $b, $c, $d, $x[$i], 6, -198630844)
$d = md5ii($d, $a, $b, $c, $x[$i + 7], 10, 1126891415)
$c = md5ii($c, $d, $a, $b, $x[$i + 14], 15, -1416354905)
$b = md5ii($b, $c, $d, $a, $x[$i + 5], 21, -57434055)
$a = md5ii($a, $b, $c, $d, $x[$i + 12], 6, 1700485571)
$d = md5ii($d, $a, $b, $c, $x[$i + 3], 10, -1894986606)
$c = md5ii($c, $d, $a, $b, $x[$i + 10], 15, -1051523)
$b = md5ii($b, $c, $d, $a, $x[$i + 1], 21, -2054922799)
$a = md5ii($a, $b, $c, $d, $x[$i + 8], 6, 1873313359)
$d = md5ii($d, $a, $b, $c, Execute("$x[$i + 15]"), 10, -30611744)
$c = md5ii($c, $d, $a, $b, $x[$i + 6], 15, -1560198380)
$b = md5ii($b, $c, $d, $a, $x[$i + 13], 21, 1309151649)
$a = md5ii($a, $b, $c, $d, $x[$i + 4], 6, -145523070)
$d = md5ii($d, $a, $b, $c, $x[$i + 11], 10, -1120210379)
$c = md5ii($c, $d, $a, $b, $x[$i + 2], 15, 718787259)
$b = md5ii($b, $c, $d, $a, $x[$i + 9], 21, -343485551)
$a = safeAdd($a, $olda)
$b = safeAdd($b, $oldb)
$c = safeAdd($c, $oldc)
$d = safeAdd($d, $oldd)
Next
Local $return = [$a, $b, $c, $d]
Return $return
EndFunc
Func binl2rstr($input)
Local $i
Local $output = ''
Local $length32 = UBound($input) * 32
For $i = 0 To $length32 - 1 Step +8
$output &= Chr(BitAND(UnsignedRightShift(Execute("$input[BitShift($i, 5)]"), Mod($i, 32)), 0xff))
Next
Return $output
EndFunc
Func md5cmn($q, $a, $b, $x, $s, $t)
Return safeAdd(bitRotateLeft(safeAdd(safeAdd($a, $q), safeAdd($x, $t)), $s), $b)
EndFunc
Func md5ff($a, $b, $c, $d, $x, $s, $t)
return md5cmn(BitOR(BitAND($b, $c), (BitAND(BitNOT($b), $d))), $a, $b, $x, $s, $t)
EndFunc
Func md5gg($a, $b, $c, $d, $x, $s, $t)
return md5cmn(BitOR(BitAND($b, $d), BitAND($c, BitNOT($d))), $a, $b, $x, $s, $t)
EndFunc
Func md5hh($a, $b, $c, $d, $x, $s, $t)
return md5cmn(BitXOR($b, $c, $d), $a, $b, $x, $s, $t)
EndFunc
Func md5ii($a, $b, $c, $d, $x, $s, $t)
return md5cmn(BitXOR($c, BitOR($b, BitNOT($d))), $a, $b, $x, $s, $t)
EndFunc
Func safeAdd($x, $y)
Local $lsw = BitAND($x, 0xffff) + BitAND($y, 0xffff)
Local $msw = BitShift($x, 16) + BitShift($y, 16) + BitShift($lsw, 16)
return BitOR(BitShift($msw, 16 * -1), BitAND($lsw, 0xffff))
EndFunc
Func bitRotateLeft($num, $cnt)
Return BitOR(BitShift($num, $cnt * -1), UnsignedRightShift($num, (32 - $cnt)))
EndFunc
Func UnsignedRightShift($iNum, $iShift)
If $iShift < 0 Then Return 0
If $iShift = 0 And $iNum < 0 Then Return 0x100000000 + $iNum
Return _BitShift($iNum, $iShift)
EndFunc
#cs
# BitShift as Unsigned Integer.
# @see https://www.autoitscript.com/forum/topic/105894-bitshift-as-unsigned-integer/
#ce
Func _BitShift($iNum, $iShift)
If ($iShift <= -32) Or ($iShift >= 32) Then Return SetError(1, 0, $iNum)
If $iShift = 0 Then Return $iNum
If $iShift < 0 Then
; left shifts are not affected
Return BitShift($iNum, $iShift)
Else
; handle right shift of negative number
; the magic: remove sign bit, shift, add back top bit in new position
;If $iNum < 0 Then Return BitOR(BitShift(BitAND($iNum, 0x7FFFFFFF), $iShift), 2 ^ (31 - $iShift)) ;<--- orig
If $iNum < 0 Or $iNum > 2147483647 Then Return BitOR(BitShift(BitAND($iNum, 0x7FFFFFFF), $iShift), 2 ^ (31 - $iShift)) ;<--- modified
EndIf
Return BitShift($iNum, $iShift)
EndFunc
#cs
# Combines two arrays return the result, without affecting the originals.
#ce
Func __ArrayConcatenate($array1, $array2)
Local $iSize1 = UBound($array1)
Redim $array1[UBound($array1) + UBound($array2)]
For $i = UBound($array1) - UBound($array2) To UBound($array1) - 1 Step +1
$array1[$i] = $array2[$i - $iSize1]
Next
Return $array1
EndFunc