• [导入]ASP的MD5加密!


      从来没用过加密工具!从网上下了一个MD5的算法文件,用于ASP的,虽然已经有很多解密的方法了,但总还是比明码存储的要好些,就先用这个!本来想自己写个加密算法的,但觉得一来时间不够,二来算法也不严密,怕搞不好出错,就先用了这个!用法就简单了,先包含这个文件再MD5就行了,例:

    <!--#include file="md5_inc.asp"-->
    <%
     response.Write(MD5("fasdf3"))
    %>

    <%
    Private Const BITS_TO_A_BYTE = 8
    Private Const BYTES_TO_A_WORD = 4
    Private Const BITS_TO_A_WORD = 32

    Private m_lOnBits(30)
    Private m_l2Power(30)
     
    Private Function LShift(lValue, iShiftBits)
        If iShiftBits = 0 Then
            LShift = lValue
            Exit Function
        ElseIf iShiftBits = 31 Then
            If lValue And 1 Then
                LShift = &H80000000
            Else
                LShift = 0
            End If
            Exit Function
        ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
            Err.Raise 6
        End If

        If (lValue And m_l2Power(31 - iShiftBits)) Then
            LShift = ((lValue And m_lOnBits(31 - (iShiftBits + 1))) * m_l2Power(iShiftBits)) Or &H80000000
        Else
            LShift = ((lValue And m_lOnBits(31 - iShiftBits)) * m_l2Power(iShiftBits))
        End If
    End Function

    Private Function RShift(lValue, iShiftBits)
        If iShiftBits = 0 Then
            RShift = lValue
            Exit Function
        ElseIf iShiftBits = 31 Then
            If lValue And &H80000000 Then
                RShift = 1
            Else
                RShift = 0
            End If
            Exit Function
        ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
            Err.Raise 6
        End If
       
        RShift = (lValue And &H7FFFFFFE) \ m_l2Power(iShiftBits)

        If (lValue And &H80000000) Then
            RShift = (RShift Or (&H40000000 \ m_l2Power(iShiftBits - 1)))
        End If
    End Function

    Private Function RotateLeft(lValue, iShiftBits)
        RotateLeft = LShift(lValue, iShiftBits) Or RShift(lValue, (32 - iShiftBits))
    End Function

    Private Function AddUnsigned(lX, lY)
        Dim lX4
        Dim lY4
        Dim lX8
        Dim lY8
        Dim lResult
     
        lX8 = lX And &H80000000
        lY8 = lY And &H80000000
        lX4 = lX And &H40000000
        lY4 = lY And &H40000000
     
        lResult = (lX And &H3FFFFFFF) + (lY And &H3FFFFFFF)
     
        If lX4 And lY4 Then
            lResult = lResult Xor &H80000000 Xor lX8 Xor lY8
        ElseIf lX4 Or lY4 Then
            If lResult And &H40000000 Then
                lResult = lResult Xor &HC0000000 Xor lX8 Xor lY8
            Else
                lResult = lResult Xor &H40000000 Xor lX8 Xor lY8
            End If
        Else
            lResult = lResult Xor lX8 Xor lY8
        End If
     
        AddUnsigned = lResult
    End Function

    Private Function md5_F(x, y, z)
        md5_F = (x And y) Or ((Not x) And z)
    End Function

    Private Function md5_G(x, y, z)
        md5_G = (x And z) Or (y And (Not z))
    End Function

    Private Function md5_H(x, y, z)
        md5_H = (x Xor y Xor z)
    End Function

    Private Function md5_I(x, y, z)
        md5_I = (y Xor (x Or (Not z)))
    End Function

    Private Sub md5_FF(a, b, c, d, x, s, ac)
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_F(b, c, d), x), ac))
        a = RotateLeft(a, s)
        a = AddUnsigned(a, b)
    End Sub

    Private Sub md5_GG(a, b, c, d, x, s, ac)
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_G(b, c, d), x), ac))
        a = RotateLeft(a, s)
        a = AddUnsigned(a, b)
    End Sub

    Private Sub md5_HH(a, b, c, d, x, s, ac)
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_H(b, c, d), x), ac))
        a = RotateLeft(a, s)
        a = AddUnsigned(a, b)
    End Sub

    Private Sub md5_II(a, b, c, d, x, s, ac)
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_I(b, c, d), x), ac))
        a = RotateLeft(a, s)
        a = AddUnsigned(a, b)
    End Sub

    Private Function ConvertToWordArray(sMessage)
        Dim lMessageLength
        Dim lNumberOfWords
        Dim lWordArray()
        Dim lBytePosition
        Dim lByteCount
        Dim lWordCount
       
        Const MODULUS_BITS = 512
        Const CONGRUENT_BITS = 448
       
        lMessageLength = Len(sMessage)
       
        lNumberOfWords = (((lMessageLength + ((MODULUS_BITS - CONGRUENT_BITS) \ BITS_TO_A_BYTE)) \ (MODULUS_BITS \ BITS_TO_A_BYTE)) + 1) * (MODULUS_BITS \ BITS_TO_A_WORD)
        ReDim lWordArray(lNumberOfWords - 1)
       
        lBytePosition = 0
        lByteCount = 0
        Do Until lByteCount >= lMessageLength
            lWordCount = lByteCount \ BYTES_TO_A_WORD
            lBytePosition = (lByteCount Mod BYTES_TO_A_WORD) * BITS_TO_A_BYTE
            lWordArray(lWordCount) = lWordArray(lWordCount) Or LShift(Asc(Mid(sMessage, lByteCount + 1, 1)), lBytePosition)
            lByteCount = lByteCount + 1
        Loop

        lWordCount = lByteCount \ BYTES_TO_A_WORD
        lBytePosition = (lByteCount Mod BYTES_TO_A_WORD) * BITS_TO_A_BYTE

        lWordArray(lWordCount) = lWordArray(lWordCount) Or LShift(&H80, lBytePosition)

        lWordArray(lNumberOfWords - 2) = LShift(lMessageLength, 3)
        lWordArray(lNumberOfWords - 1) = RShift(lMessageLength, 29)
       
        ConvertToWordArray = lWordArray
    End Function

    Private Function WordToHex(lValue)
        Dim lByte
        Dim lCount
       
        For lCount = 0 To 3
            lByte = RShift(lValue, lCount * BITS_TO_A_BYTE) And m_lOnBits(BITS_TO_A_BYTE - 1)
            WordToHex = WordToHex & Right("0" & Hex(lByte), 2)
        Next
    End Function

    Public Function MD5(sMessage)
        m_lOnBits(0) = CLng(1)
        m_lOnBits(1) = CLng(3)
        m_lOnBits(2) = CLng(7)
        m_lOnBits(3) = CLng(15)
        m_lOnBits(4) = CLng(31)
        m_lOnBits(5) = CLng(63)
        m_lOnBits(6) = CLng(127)
        m_lOnBits(7) = CLng(255)
        m_lOnBits(8) = CLng(511)
        m_lOnBits(9) = CLng(1023)
        m_lOnBits(10) = CLng(2047)
        m_lOnBits(11) = CLng(4095)
        m_lOnBits(12) = CLng(8191)
        m_lOnBits(13) = CLng(16383)
        m_lOnBits(14) = CLng(32767)
        m_lOnBits(15) = CLng(65535)
        m_lOnBits(16) = CLng(131071)
        m_lOnBits(17) = CLng(262143)
        m_lOnBits(18) = CLng(524287)
        m_lOnBits(19) = CLng(1048575)
        m_lOnBits(20) = CLng(2097151)
        m_lOnBits(21) = CLng(4194303)
        m_lOnBits(22) = CLng(8388607)
        m_lOnBits(23) = CLng(16777215)
        m_lOnBits(24) = CLng(33554431)
        m_lOnBits(25) = CLng(67108863)
        m_lOnBits(26) = CLng(134217727)
        m_lOnBits(27) = CLng(268435455)
        m_lOnBits(28) = CLng(536870911)
        m_lOnBits(29) = CLng(1073741823)
        m_lOnBits(30) = CLng(2147483647)
       
        m_l2Power(0) = CLng(1)
        m_l2Power(1) = CLng(2)
        m_l2Power(2) = CLng(4)
        m_l2Power(3) = CLng(8)
        m_l2Power(4) = CLng(16)
        m_l2Power(5) = CLng(32)
        m_l2Power(6) = CLng(64)
        m_l2Power(7) = CLng(128)
        m_l2Power(8) = CLng(256)
        m_l2Power(9) = CLng(512)
        m_l2Power(10) = CLng(1024)
        m_l2Power(11) = CLng(2048)
        m_l2Power(12) = CLng(4096)
        m_l2Power(13) = CLng(8192)
        m_l2Power(14) = CLng(16384)
        m_l2Power(15) = CLng(32768)
        m_l2Power(16) = CLng(65536)
        m_l2Power(17) = CLng(131072)
        m_l2Power(18) = CLng(262144)
        m_l2Power(19) = CLng(524288)
        m_l2Power(20) = CLng(1048576)
        m_l2Power(21) = CLng(2097152)
        m_l2Power(22) = CLng(4194304)
        m_l2Power(23) = CLng(8388608)
        m_l2Power(24) = CLng(16777216)
        m_l2Power(25) = CLng(33554432)
        m_l2Power(26) = CLng(67108864)
        m_l2Power(27) = CLng(134217728)
        m_l2Power(28) = CLng(268435456)
        m_l2Power(29) = CLng(536870912)
        m_l2Power(30) = CLng(1073741824)


        Dim x
        Dim k
        Dim AA
        Dim BB
        Dim CC
        Dim DD
        Dim a
        Dim b
        Dim c
        Dim d
       
        Const S11 = 7
        Const S12 = 12
        Const S13 = 17
        Const S14 = 22
        Const S21 = 5
        Const S22 = 9
        Const S23 = 14
        Const S24 = 20
        Const S31 = 4
        Const S32 = 11
        Const S33 = 16
        Const S34 = 23
        Const S41 = 6
        Const S42 = 10
        Const S43 = 15
        Const S44 = 21

        x = ConvertToWordArray(sMessage)
       
        a = &H67452301
        b = &HEFCDAB89
        c = &H98BADCFE
        d = &H10325476

        For k = 0 To UBound(x) Step 16
            AA = a
            BB = b
            CC = c
            DD = d
       
            md5_FF a, b, c, d, x(k + 0), S11, &HD76AA478
            md5_FF d, a, b, c, x(k + 1), S12, &HE8C7B756
            md5_FF c, d, a, b, x(k + 2), S13, &H242070DB
            md5_FF b, c, d, a, x(k + 3), S14, &HC1BDCEEE
            md5_FF a, b, c, d, x(k + 4), S11, &HF57C0FAF
            md5_FF d, a, b, c, x(k + 5), S12, &H4787C62A
            md5_FF c, d, a, b, x(k + 6), S13, &HA8304613
            md5_FF b, c, d, a, x(k + 7), S14, &HFD469501
            md5_FF a, b, c, d, x(k + 8), S11, &H698098D8
            md5_FF d, a, b, c, x(k + 9), S12, &H8B44F7AF
            md5_FF c, d, a, b, x(k + 10), S13, &HFFFF5BB1
            md5_FF b, c, d, a, x(k + 11), S14, &H895CD7BE
            md5_FF a, b, c, d, x(k + 12), S11, &H6B901122
            md5_FF d, a, b, c, x(k + 13), S12, &HFD987193
            md5_FF c, d, a, b, x(k + 14), S13, &HA679438E
            md5_FF b, c, d, a, x(k + 15), S14, &H49B40821
       
            md5_GG a, b, c, d, x(k + 1), S21, &HF61E2562
            md5_GG d, a, b, c, x(k + 6), S22, &HC040B340
            md5_GG c, d, a, b, x(k + 11), S23, &H265E5A51
            md5_GG b, c, d, a, x(k + 0), S24, &HE9B6C7AA
            md5_GG a, b, c, d, x(k + 5), S21, &HD62F105D
            md5_GG d, a, b, c, x(k + 10), S22, &H2441453
            md5_GG c, d, a, b, x(k + 15), S23, &HD8A1E681
            md5_GG b, c, d, a, x(k + 4), S24, &HE7D3FBC8
            md5_GG a, b, c, d, x(k + 9), S21, &H21E1CDE6
            md5_GG d, a, b, c, x(k + 14), S22, &HC33707D6
            md5_GG c, d, a, b, x(k + 3), S23, &HF4D50D87
            md5_GG b, c, d, a, x(k + 8), S24, &H455A14ED
            md5_GG a, b, c, d, x(k + 13), S21, &HA9E3E905
            md5_GG d, a, b, c, x(k + 2), S22, &HFCEFA3F8
            md5_GG c, d, a, b, x(k + 7), S23, &H676F02D9
            md5_GG b, c, d, a, x(k + 12), S24, &H8D2A4C8A
               
            md5_HH a, b, c, d, x(k + 5), S31, &HFFFA3942
            md5_HH d, a, b, c, x(k + 8), S32, &H8771F681
            md5_HH c, d, a, b, x(k + 11), S33, &H6D9D6122
            md5_HH b, c, d, a, x(k + 14), S34, &HFDE5380C
            md5_HH a, b, c, d, x(k + 1), S31, &HA4BEEA44
            md5_HH d, a, b, c, x(k + 4), S32, &H4BDECFA9
            md5_HH c, d, a, b, x(k + 7), S33, &HF6BB4B60
            md5_HH b, c, d, a, x(k + 10), S34, &HBEBFBC70
            md5_HH a, b, c, d, x(k + 13), S31, &H289B7EC6
            md5_HH d, a, b, c, x(k + 0), S32, &HEAA127FA
            md5_HH c, d, a, b, x(k + 3), S33, &HD4EF3085
            md5_HH b, c, d, a, x(k + 6), S34, &H4881D05
            md5_HH a, b, c, d, x(k + 9), S31, &HD9D4D039
            md5_HH d, a, b, c, x(k + 12), S32, &HE6DB99E5
            md5_HH c, d, a, b, x(k + 15), S33, &H1FA27CF8
            md5_HH b, c, d, a, x(k + 2), S34, &HC4AC5665
       
            md5_II a, b, c, d, x(k + 0), S41, &HF4292244
            md5_II d, a, b, c, x(k + 7), S42, &H432AFF97
            md5_II c, d, a, b, x(k + 14), S43, &HAB9423A7
            md5_II b, c, d, a, x(k + 5), S44, &HFC93A039
            md5_II a, b, c, d, x(k + 12), S41, &H655B59C3
            md5_II d, a, b, c, x(k + 3), S42, &H8F0CCC92
            md5_II c, d, a, b, x(k + 10), S43, &HFFEFF47D
            md5_II b, c, d, a, x(k + 1), S44, &H85845DD1
            md5_II a, b, c, d, x(k + 8), S41, &H6FA87E4F
            md5_II d, a, b, c, x(k + 15), S42, &HFE2CE6E0
            md5_II c, d, a, b, x(k + 6), S43, &HA3014314
            md5_II b, c, d, a, x(k + 13), S44, &H4E0811A1
            md5_II a, b, c, d, x(k + 4), S41, &HF7537E82
            md5_II d, a, b, c, x(k + 11), S42, &HBD3AF235
            md5_II c, d, a, b, x(k + 2), S43, &H2AD7D2BB
            md5_II b, c, d, a, x(k + 9), S44, &HEB86D391
       
            a = AddUnsigned(a, AA)
            b = AddUnsigned(b, BB)
            c = AddUnsigned(c, CC)
            d = AddUnsigned(d, DD)
        Next
       
        ' MD5 = LCase(WordToHex(a) & WordToHex(b) & WordToHex(c) & WordToHex(d))
        MD5=LCase(WordToHex(b) & WordToHex(c))
    End Function
    %>


    文章来源:http://computer.mblogger.cn/wucountry/posts/24916.aspx
    ================================
      /\_/\                        
     (=^o^=)  Wu.Country@侠缘      
     (~)@(~)  一辈子,用心做一件事!
    --------------------------------
      学而不思则罔,思而不学则怠!  
    ================================
  • 相关阅读:
    基础总结深入:数据类型的分类和判断(数据、内存、变量) 对象 函数 回调函数 IIFE 函数中的this 分号
    BOM 定时器 通过修改元素的类来改变css JSON
    事件 事件的冒泡 事件的委派 事件的绑定 事件的传播
    DOM修改 使用DOM操作CSS
    包装类 Date Math 字符串的相关的方法 正则表达式 DOM DOM查询
    数组 call()、apply()、bind()的使用 this arguments
    autocad 二次开发 最小包围圆算法
    win10 objectarx向导在 vs2015中不起作用的解决办法
    AutoCad 二次开发 jig操作之标注跟随线移动
    AutoCad 二次开发 文字镜像
  • 原文地址:https://www.cnblogs.com/WuCountry/p/305762.html
Copyright © 2020-2023  润新知