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    VBS MD5加密算法代碼
    來源:易賢網(wǎng) 閱讀:1678 次 日期:2016-07-18 11:35:13
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    VBS MD5加密算法代碼,需要的朋友可以參考下。

    代碼如下:

    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)

    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)

    a=inputbox("請(qǐng)輸入密碼:")

    wscript.echo md5(a)

    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 F(x, y, z)

    F = (x And y) Or ((Not x) And z)

    End Function

    Private Function G(x, y, z)

    G = (x And z) Or (y And (Not z))

    End Function

    Private Function H(x, y, z)

    H = (x Xor y Xor z)

    End Function

    Private Function I(x, y, z)

    I = (y Xor (x Or (Not z)))

    End Function

    Private Sub FF(a, b, c, d, x, s, ac)

    a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac))

    a = RotateLeft(a, s)

    a = AddUnsigned(a, b)

    End Sub

    Private Sub GG(a, b, c, d, x, s, ac)

    a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac))

    a = RotateLeft(a, s)

    a = AddUnsigned(a, b)

    End Sub

    Private Sub HH(a, b, c, d, x, s, ac)

    a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac))

    a = RotateLeft(a, s)

    a = AddUnsigned(a, b)

    End Sub

    Private Sub II(a, b, c, d, x, s, ac)

    a = AddUnsigned(a, AddUnsigned(AddUnsigned(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)

    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

    FF a, b, c, d, x(k + 0), S11, &HD76AA478

    FF d, a, b, c, x(k + 1), S12, &HE8C7B756

    FF c, d, a, b, x(k + 2), S13, &H242070DB

    FF b, c, d, a, x(k + 3), S14, &HC1BDCEEE

    FF a, b, c, d, x(k + 4), S11, &HF57C0FAF

    FF d, a, b, c, x(k + 5), S12, &H4787C62A

    FF c, d, a, b, x(k + 6), S13, &HA8304613

    FF b, c, d, a, x(k + 7), S14, &HFD469501

    FF a, b, c, d, x(k + 8), S11, &H698098D8

    FF d, a, b, c, x(k + 9), S12, &H8B44F7AF

    FF c, d, a, b, x(k + 10), S13, &HFFFF5BB1

    FF b, c, d, a, x(k + 11), S14, &H895CD7BE

    FF a, b, c, d, x(k + 12), S11, &H6B901122

    FF d, a, b, c, x(k + 13), S12, &HFD987193

    FF c, d, a, b, x(k + 14), S13, &HA679438E

    FF b, c, d, a, x(k + 15), S14, &H49B40821

    GG a, b, c, d, x(k + 1), S21, &HF61E2562

    GG d, a, b, c, x(k + 6), S22, &HC040B340

    GG c, d, a, b, x(k + 11), S23, &H265E5A51

    GG b, c, d, a, x(k + 0), S24, &HE9B6C7AA

    GG a, b, c, d, x(k + 5), S21, &HD62F105D

    GG d, a, b, c, x(k + 10), S22, &H2441453

    GG c, d, a, b, x(k + 15), S23, &HD8A1E681

    GG b, c, d, a, x(k + 4), S24, &HE7D3FBC8

    GG a, b, c, d, x(k + 9), S21, &H21E1CDE6

    GG d, a, b, c, x(k + 14), S22, &HC33707D6

    GG c, d, a, b, x(k + 3), S23, &HF4D50D87

    GG b, c, d, a, x(k + 8), S24, &H455A14ED

    GG a, b, c, d, x(k + 13), S21, &HA9E3E905

    GG d, a, b, c, x(k + 2), S22, &HFCEFA3F8

    GG c, d, a, b, x(k + 7), S23, &H676F02D9

    GG b, c, d, a, x(k + 12), S24, &H8D2A4C8A

    HH a, b, c, d, x(k + 5), S31, &HFFFA3942

    HH d, a, b, c, x(k + 8), S32, &H8771F681

    HH c, d, a, b, x(k + 11), S33, &H6D9D6122

    HH b, c, d, a, x(k + 14), S34, &HFDE5380C

    HH a, b, c, d, x(k + 1), S31, &HA4BEEA44

    HH d, a, b, c, x(k + 4), S32, &H4BDECFA9

    HH c, d, a, b, x(k + 7), S33, &HF6BB4B60

    HH b, c, d, a, x(k + 10), S34, &HBEBFBC70

    HH a, b, c, d, x(k + 13), S31, &H289B7EC6

    HH d, a, b, c, x(k + 0), S32, &HEAA127FA

    HH c, d, a, b, x(k + 3), S33, &HD4EF3085

    HH b, c, d, a, x(k + 6), S34, &H4881D05

    HH a, b, c, d, x(k + 9), S31, &HD9D4D039

    HH d, a, b, c, x(k + 12), S32, &HE6DB99E5

    HH c, d, a, b, x(k + 15), S33, &H1FA27CF8

    HH b, c, d, a, x(k + 2), S34, &HC4AC5665

    II a, b, c, d, x(k + 0), S41, &HF4292244

    II d, a, b, c, x(k + 7), S42, &H432AFF97

    II c, d, a, b, x(k + 14), S43, &HAB9423A7

    II b, c, d, a, x(k + 5), S44, &HFC93A039

    II a, b, c, d, x(k + 12), S41, &H655B59C3

    II d, a, b, c, x(k + 3), S42, &H8F0CCC92

    II c, d, a, b, x(k + 10), S43, &HFFEFF47D

    II b, c, d, a, x(k + 1), S44, &H85845DD1

    II a, b, c, d, x(k + 8), S41, &H6FA87E4F

    II d, a, b, c, x(k + 15), S42, &HFE2CE6E0

    II c, d, a, b, x(k + 6), S43, &HA3014314

    II b, c, d, a, x(k + 13), S44, &H4E0811A1

    II a, b, c, d, x(k + 4), S41, &HF7537E82

    II d, a, b, c, x(k + 11), S42, &HBD3AF235

    II c, d, a, b, x(k + 2), S43, &H2AD7D2BB

    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))

    End Function

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