Php-authcode算法之AU3版

2月252017
作者：haijie1223 发布：2017-2-25 10:51 Saturday 分类：源码示例阅读：13168次评论：0条
<code class="language-autoit hljs">php的authcode加解密算法，翻译成AU3了。
<code class="language-autoit hljs">#NoTrayIcon

#PRE_UseX64=n
#QQ交流群:477266297
#include &lt;Date.au3&gt;
#include &lt;array.au3&gt;
Opt('MustDeclareVars', 1)
Local $OriginalStr = '1234567890abcdefghijklmnopqrstuvwxyz中英文测试'
Local $CryptText = authcode($OriginalStr, 'ENCODE', '123')
MsgBox(0, 'Decode' &amp; ':' &amp; $OriginalStr, 'CryptText:' &amp; @CRLF &amp; $CryptText _
         &amp; @CRLF &amp; @CRLF &amp; _
        'Original:' &amp; @CRLF &amp; authcode($CryptText, 'DECODE', '123'))

; #FUNCTION# ============================================================
; Modified by haijie1223 and zldfsz in February 13, 2017
; QQ交流群:477266297
;// 参数解释
;// $string： 明文 或 密文
;// $operation：DECODE表示解密,其它表示加密
;// $key： 密匙
;// $expiry：密文有效期
;// $ckey_length: 动态密匙长度，相同的明文会生成不同密文就是依靠动态密匙
; ========================================================================
Func authcode($string, $operation = 'DECODE', $key = 'AU3_authcode', $expiry = 0, $CodingFlag = 4, $ckey_length = 4)
    $key = _MD5($key);;// 密匙
    Local $keya = _MD5(StringMid($key, 0 + 1, 16));;// 密匙a会参与加解密
    Local $keyb = _MD5(StringMid($key, 16 + 1, 16));;// 密匙b会用来做数据完整性验证
    Local $keyc = ($ckey_length ? ($operation == 'DECODE' ? StringMid($string, 0 + 1, $ckey_length) : StringRight(_MD5(time()), $ckey_length)) : '');;// 密匙c用于变化生成的密文
    Local $cryptkey = $keya &amp; _MD5($keya &amp; $keyc);;// 参与运算的密匙
    Local $key_length = StringLen($cryptkey);
    If $operation == 'DECODE' Then ;// 如果是解码的话，会从第$ckey_length位开始，因为密文前$ckey_length位保存 动态密匙，以保证解密正确
        $string = _Base64Decode(StringMid($string, $ckey_length + 1))
        Local $Tmpstring = ""
        For $i = 3 To StringLen($string) Step 2
            $Tmpstring &amp;= ChrW(Dec(StringMid($string, $i, 2)))
        Next
        $string = $Tmpstring
    Else ;// 明文，前10位用来保存时间戳，解密时验证数据有效性，10到26位用来保存$keyb(密匙b)，解密时会通过这个密匙验证数据完整性
        $string = StringFormat('%010d', $expiry ? $expiry + time() : 0) &amp; StringMid(_MD5($string &amp; $keyb, $CodingFlag), 0 + 1, 16) &amp; $string;
    EndIf
    Local $tmp = ''
    For $i = 1 To StringLen($string)
        If StringRegExp(StringMid($string, $i, 1), '[^\x00-\xff]') Then ;对字符串中的双字节字符进行编码，与php标准进行统一
            Local $strTmp = StringToBinary(StringMid($string, $i, 1), $CodingFlag)
            For $j = 3 To StringLen($strTmp) Step 2
                $tmp &amp;= ChrW(Dec(StringMid($strTmp, $j, 2)))
            Next
        Else
            $tmp &amp;= StringMid($string, $i, 1)
        EndIf
    Next
    $string = $tmp

    Local $box[256]
    For $i = 0 To 255
        $box[$i] = $i
    Next
    ;// 产生密匙簿
    Local $rndkey[256]
    For $i = 0 To 255
        $rndkey[$i] = AscW(StringMid($cryptkey, Mod($i, $key_length) + 1, 1));
    Next
    ;// 用固定的算法，打乱密匙簿，增加随机性，好像很复杂，实际上对并不会增加密文的强度
    Local $j = 0
    For $i = 0 To 255
        $j = Mod(($j + $box[$i] + $rndkey[$i]), 256);
        $tmp = $box[$i];
        $box[$i] = $box[$j];
        $box[$j] = $tmp;
    Next
    ;// 核心加解密部分
    Local $a = 0, $j = 0, $result = '', $string_length = StringLen($string);
    Local $resultC = ''
    For $i = 0 To $string_length - 1
        $a = Mod($a + 1, 256);
        $j = Mod($j + $box[$a], 256);
        $tmp = $box[$a];
        $box[$a] = $box[$j];
        $box[$j] = $tmp;
        ;// 从密匙簿得出密匙进行异或，再转成字符
        $result &amp;= Hex(BitXOR( _
                AscW(StringMid($string, $i + 1, 1)), $box[Mod($box[$a] + $box[$j], 256)] _
                ), 2);
    Next
    $result = '0x' &amp; $result
    If $operation == 'DECODE' Then
        $result = BinaryToString($result, $CodingFlag)
        ;// StringMid($result, 0, 10) == 0 验证数据有效性
        ;// StringMid($result, 0, 10) - time() &gt; 0 验证数据有效性
        ;// StringMid($result, 10, 16) == StringMid(md5(StringMid($result, 26).$keyb), 0, 16) 验证数据完整性
        ;// 验证数据有效性，请看未加密明文的格式
        If (StringMid($result, 0 + 1, 10) = 0 Or StringMid($result, 0 + 1, 10) - time() &gt; 0) And StringMid($result, 10 + 1, 16) == StringMid(_MD5(StringMid($result, 26 + 1) &amp; $keyb, $CodingFlag), 0 + 1, 16) Then
            $result = StringMid($result, 26 + 1)
            Return $result
        Else
            Return '';
        EndIf
    Else
        ;// 把动态密匙保存在密文里，这也是为什么同样的明文，生产不同密文后能解密的原因
        ;// 因为加密后的密文可能是一些特殊字符，复制过程可能会丢失，所以用base64编码
;~      Local $result1 = StringRegExpReplace($keyc &amp; StringReplace(_Base64Encode($result), '=', ''), '\v', '')
        $result = StringStripWS($keyc &amp; StringReplace(_Base64Encode($result), '=', ''),8)
        Return $result
    EndIf
EndFunc   ;==&gt;authcode

Func time()
    Return _DateDiff('s', "1970/01/01 08:00:00", _NowCalc())
EndFunc   ;==&gt;time

Func _MD5($Data, $Flag = 1)
    $Data = StringToBinary($Data, $Flag)
    Local $_MD5Opcode = '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
    $_MD5Opcode &amp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
    $_MD5Opcode &amp;= '45F850E8510000008B4310C1E80383E03F8945F483F838730B6A38582B45F48945F0EB096A78582B45F48945F0FF75F0FF75ECFF750CE831F8FFFF6A088D45F850FF750CE823F8FFFF6A1053FF7508E8050000005BC9C210005589E55156578B7D088B750C8B4D10FCF3A45F5E595DC20C00'
    Local $CodeBuffer = DllStructCreate("byte[" &amp; BinaryLen($_MD5Opcode) &amp; "]")
    DllStructSetData($CodeBuffer, 1, $_MD5Opcode)
    Local $Input = DllStructCreate("byte[" &amp; BinaryLen($Data) &amp; "]")
    DllStructSetData($Input, 1, $Data)
    Local $Digest = DllStructCreate("byte[16]")
    DllCall("user32.dll", "none", "CallWindowProc", "ptr", DllStructGetPtr($CodeBuffer), _
            "ptr", DllStructGetPtr($Input), _
            "int", BinaryLen($Data), _
            "ptr", DllStructGetPtr($Digest), _
            "int", 0)
    Local $Ret = DllStructGetData($Digest, 1)
    $Input = 0
    $Digest = 0
    $CodeBuffer = 0
    Return StringLower(StringTrimLeft($Ret, 2))
    Return $Ret
EndFunc   ;==&gt;_MD5

Func _Base64Decode($Data)
    Local $Opcode = "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
    Local $CodeBuffer = DllStructCreate("byte[" &amp; BinaryLen($Opcode) &amp; "]")
    DllStructSetData($CodeBuffer, 1, $Opcode)
    Local $Ouput = DllStructCreate("byte[" &amp; BinaryLen($Data) &amp; "]")
    Local $Ret = DllCall("user32.dll", "int", "CallWindowProcW", "ptr", DllStructGetPtr($CodeBuffer), _
            "str", $Data, _
            "ptr", DllStructGetPtr($Ouput), _
            "int", 0, _
            "int", 0)
    Local $str = BinaryMid(DllStructGetData($Ouput, 1), 1)

    Local $sRet = ''
    For $i = StringLen($str) - 1 To 1 Step -2
        If StringMid($str, $i, 2) &lt;&gt; '00' Then
            $sRet = StringMid($str, 1, $i + 1)
            ExitLoop
        EndIf
    Next
    Return $sRet
EndFunc   ;==&gt;_Base64Decode

Func _Base64Encode($Data, $LineBreak = 76)
    Local $Opcode = "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
    Local $CodeBuffer = DllStructCreate("byte[" &amp; BinaryLen($Opcode) &amp; "]")
    DllStructSetData($CodeBuffer, 1, $Opcode)
    $Data = Binary($Data)
    Local $Input = DllStructCreate("byte[" &amp; BinaryLen($Data) &amp; "]")
    DllStructSetData($Input, 1, $Data)
    $LineBreak = Floor($LineBreak / 4) * 4
    Local $OputputSize = Ceiling(BinaryLen($Data) * 4 / 3)
    $OputputSize = $OputputSize + Ceiling($OputputSize / $LineBreak) * 2 + 4
    Local $Ouput = DllStructCreate("char[" &amp; $OputputSize &amp; "]")
    DllCall("user32.dll", "none", "CallWindowProc", "ptr", DllStructGetPtr($CodeBuffer), _
            "ptr", DllStructGetPtr($Input), _
            "int", BinaryLen($Data), _
            "ptr", DllStructGetPtr($Ouput), _
            "uint", $LineBreak)
    Return DllStructGetData($Ouput, 1)
EndFunc   ;==&gt;_Base64Encode```
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