高手们谁能将这段代码转成C#的代码!高手们!分不够还可再加
Private Const ASP_BITS_TO_A_BYTE = 8
Private Const ASP_BYTES_TO_A_WORD = 4
Private Const ASP_BITS_TO_A_WORD = 32
Private ASP_m_lOnBits(30)
Private ASP_m_l2Power(30)
Private Function ASP_LShift(lValue, iShiftBits)
If iShiftBits = 0 Then
ASP_LShift = lValue
Exit Function
ElseIf iShiftBits = 31 Then
If lValue And 1 Then
ASP_LShift = &H80000000
Else
ASP_LShift = 0
End If
Exit Function
ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
Err.Raise 6
End If
If (lValue And ASP_m_l2Power(31 - iShiftBits)) Then
ASP_LShift = ((lValue And ASP_m_lOnBits(31 - (iShiftBits + 1))) * ASP_m_l2Power(iShiftBits)) Or &H80000000
Else
ASP_LShift = ((lValue And ASP_m_lOnBits(31 - iShiftBits)) * ASP_m_l2Power(iShiftBits))
End If
End Function
Private Function ASP_RShift(lValue, iShiftBits)
If iShiftBits = 0 Then
ASP_RShift = lValue
Exit Function
ElseIf iShiftBits = 31 Then
If lValue And &H80000000 Then
ASP_RShift = 1
Else
ASP_RShift = 0
End If
Exit Function
ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
Err.Raise 6
End If
ASP_RShift = (lValue And &H7FFFFFFE) \ ASP_m_l2Power(iShiftBits)
If (lValue And &H80000000) Then
ASP_RShift = (ASP_RShift Or (&H40000000 \ ASP_m_l2Power(iShiftBits - 1)))
End If
End Function
Private Function ASP_RotateLeft(lValue, iShiftBits)
ASP_RotateLeft = ASP_LShift(lValue, iShiftBits) Or ASP_RShift(lValue, (32 - iShiftBits))
End Function
Private Function ASP_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
ASP_AddUnsigned = lResult
End Function
Private Function ASP_md5_F(x, y, z)
ASP_md5_F = (x And y) Or ((Not x) And z)
End Function
Private Function ASP_md5_G(x, y, z)
ASP_md5_G = (x And z) Or (y And (Not z))
End Function
Private Function ASP_md5_H(x, y, z)
ASP_md5_H = (x Xor y Xor z)
End Function
Private Function ASP_md5_I(x, y, z)
ASP_md5_I = (y Xor (x Or (Not z)))
End Function
Private Sub ASP_md5_FF(a, b, c, d, x, s, ac)
a = ASP_AddUnsigned(a, ASP_AddUnsigned(ASP_AddUnsigned(ASP_md5_F(b, c, d), x), ac))
a = ASP_RotateLeft(a, s)
a = ASP_AddUnsigned(a, b)
End Sub
Private Sub ASP_md5_GG(a, b, c, d, x, s, ac)
a = ASP_AddUnsigned(a, ASP_AddUnsigned(ASP_AddUnsigned(ASP_md5_G(b, c, d), x), ac))
a = ASP_RotateLeft(a, s)
a = ASP_AddUnsigned(a, b)
End Sub
Private Sub ASP_md5_HH(a, b, c, d, x, s, ac)
a = ASP_AddUnsigned(a, ASP_AddUnsigned(ASP_AddUnsigned(ASP_md5_H(b, c, d), x), ac))
a = ASP_RotateLeft(a, s)
a = ASP_AddUnsigned(a, b)
End Sub
Private Sub ASP_md5_II(a, b, c, d, x, s, ac)
a = ASP_AddUnsigned(a, ASP_AddUnsigned(ASP_AddUnsigned(ASP_md5_I(b, c, d), x), ac))
a = ASP_RotateLeft(a, s)
a = ASP_AddUnsigned(a, b)
End Sub
Private Function ASP_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) \ ASP_BITS_TO_A_BYTE)) \ (MODULUS_BITS \ ASP_BITS_TO_A_BYTE)) + 1) * (MODULUS_BITS \ ASP_BITS_TO_A_WORD)
ReDim lWordArray(lNumberOfWords - 1)
lBytePosition = 0
lByteCount = 0
Do Until lByteCount >= lMessageLength
lWordCount = lByteCount \ ASP_BYTES_TO_A_WORD
lBytePosition = (lByteCount Mod ASP_BYTES_TO_A_WORD) * ASP_BITS_TO_A_BYTE
lWordArray(lWordCount) = lWordArray(lWordCount) Or ASP_LShift(Asc(Mid(sMessage, lByteCount + 1, 1)), lBytePosition)
lByteCount = lByteCount + 1
Loop
lWordCount = lByteCount \ ASP_BYTES_TO_A_WORD
lBytePosition = (lByteCount Mod ASP_BYTES_TO_A_WORD) * ASP_BITS_TO_A_BYTE
lWordArray(lWordCount) = lWordArray(lWordCount) Or ASP_LShift(&H80, lBytePosition)
lWordArray(lNumberOfWords - 2) = ASP_LShift(lMessageLength, 3)
lWordArray(lNumberOfWords - 1) = ASP_RShift(lMessageLength, 29)
ASP_ConvertToWordArray = lWordArray
End Function
Private Function ASP_WordToHex(lValue)
Dim lByte
Dim lCount
For lCount = 0 To 3
lByte = ASP_RShift(lValue, lCount * ASP_BITS_TO_A_BYTE) And ASP_m_lOnBits(ASP_BITS_TO_A_BYTE - 1)
ASP_WordToHex = ASP_WordToHex & Right("0" & Hex(lByte), 2)
Next
End Function
Private Const ASP_BITS_TO_A_BYTE = 8
Private Const ASP_BYTES_TO_A_WORD = 4
Private Const ASP_BITS_TO_A_WORD = 32
Private ASP_m_lOnBits(30)
Private ASP_m_l2Power(30)
Private Function ASP_LShift(lValue, iShiftBits)
If iShiftBits = 0 Then
ASP_LShift = lValue
Exit Function
ElseIf iShiftBits = 31 Then
If lValue And 1 Then
ASP_LShift = &H80000000
Else
ASP_LShift = 0
End If
Exit Function
ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
Err.Raise 6
End If
If (lValue And ASP_m_l2Power(31 - iShiftBits)) Then
ASP_LShift = ((lValue And ASP_m_lOnBits(31 - (iShiftBits + 1))) * ASP_m_l2Power(iShiftBits)) Or &H80000000
Else
ASP_LShift = ((lValue And ASP_m_lOnBits(31 - iShiftBits)) * ASP_m_l2Power(iShiftBits))
End If
End Function
Private Function ASP_RShift(lValue, iShiftBits)
If iShiftBits = 0 Then
ASP_RShift = lValue
Exit Function
ElseIf iShiftBits = 31 Then
If lValue And &H80000000 Then
ASP_RShift = 1
Else
ASP_RShift = 0
End If
Exit Function
ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
Err.Raise 6
End If
ASP_RShift = (lValue And &H7FFFFFFE) \ ASP_m_l2Power(iShiftBits)
If (lValue And &H80000000) Then
ASP_RShift = (ASP_RShift Or (&H40000000 \ ASP_m_l2Power(iShiftBits - 1)))
End If
End Function
Private Function ASP_RotateLeft(lValue, iShiftBits)
ASP_RotateLeft = ASP_LShift(lValue, iShiftBits) Or ASP_RShift(lValue, (32 - iShiftBits))
End Function
Private Function ASP_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
ASP_AddUnsigned = lResult
End Function
Private Function ASP_md5_F(x, y, z)
ASP_md5_F = (x And y) Or ((Not x) And z)
End Function
Private Function ASP_md5_G(x, y, z)
ASP_md5_G = (x And z) Or (y And (Not z))
End Function
Private Function ASP_md5_H(x, y, z)
ASP_md5_H = (x Xor y Xor z)
End Function
Private Function ASP_md5_I(x, y, z)
ASP_md5_I = (y Xor (x Or (Not z)))
End Function
Private Sub ASP_md5_FF(a, b, c, d, x, s, ac)
a = ASP_AddUnsigned(a, ASP_AddUnsigned(ASP_AddUnsigned(ASP_md5_F(b, c, d), x), ac))
a = ASP_RotateLeft(a, s)
a = ASP_AddUnsigned(a, b)
End Sub
Private Sub ASP_md5_GG(a, b, c, d, x, s, ac)
a = ASP_AddUnsigned(a, ASP_AddUnsigned(ASP_AddUnsigned(ASP_md5_G(b, c, d), x), ac))
a = ASP_RotateLeft(a, s)
a = ASP_AddUnsigned(a, b)
End Sub
Private Sub ASP_md5_HH(a, b, c, d, x, s, ac)
a = ASP_AddUnsigned(a, ASP_AddUnsigned(ASP_AddUnsigned(ASP_md5_H(b, c, d), x), ac))
a = ASP_RotateLeft(a, s)
a = ASP_AddUnsigned(a, b)
End Sub
Private Sub ASP_md5_II(a, b, c, d, x, s, ac)
a = ASP_AddUnsigned(a, ASP_AddUnsigned(ASP_AddUnsigned(ASP_md5_I(b, c, d), x), ac))
a = ASP_RotateLeft(a, s)
a = ASP_AddUnsigned(a, b)
End Sub
Private Function ASP_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) \ ASP_BITS_TO_A_BYTE)) \ (MODULUS_BITS \ ASP_BITS_TO_A_BYTE)) + 1) * (MODULUS_BITS \ ASP_BITS_TO_A_WORD)
ReDim lWordArray(lNumberOfWords - 1)
lBytePosition = 0
lByteCount = 0
Do Until lByteCount >= lMessageLength
lWordCount = lByteCount \ ASP_BYTES_TO_A_WORD
lBytePosition = (lByteCount Mod ASP_BYTES_TO_A_WORD) * ASP_BITS_TO_A_BYTE
lWordArray(lWordCount) = lWordArray(lWordCount) Or ASP_LShift(Asc(Mid(sMessage, lByteCount + 1, 1)), lBytePosition)
lByteCount = lByteCount + 1
Loop
lWordCount = lByteCount \ ASP_BYTES_TO_A_WORD
lBytePosition = (lByteCount Mod ASP_BYTES_TO_A_WORD) * ASP_BITS_TO_A_BYTE
lWordArray(lWordCount) = lWordArray(lWordCount) Or ASP_LShift(&H80, lBytePosition)
lWordArray(lNumberOfWords - 2) = ASP_LShift(lMessageLength, 3)
lWordArray(lNumberOfWords - 1) = ASP_RShift(lMessageLength, 29)
ASP_ConvertToWordArray = lWordArray
End Function
Private Function ASP_WordToHex(lValue)
Dim lByte
Dim lCount
For lCount = 0 To 3
lByte = ASP_RShift(lValue, lCount * ASP_BITS_TO_A_BYTE) And ASP_m_lOnBits(ASP_BITS_TO_A_BYTE - 1)
ASP_WordToHex = ASP_WordToHex & Right("0" & Hex(lByte), 2)
Next
End Function
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Public Function ASP_MD5(sMessage)
ASP_m_lOnBits(0) = CLng(1)
ASP_m_lOnBits(1) = CLng(3)
ASP_m_lOnBits(2) = CLng(7)
ASP_m_lOnBits(3) = CLng(15)
ASP_m_lOnBits(4) = CLng(31)
ASP_m_lOnBits(5) = CLng(63)
ASP_m_lOnBits(6) = CLng(127)
ASP_m_lOnBits(7) = CLng(255)
ASP_m_lOnBits(8) = CLng(511)
ASP_m_lOnBits(9) = CLng(1023)
ASP_m_lOnBits(10) = CLng(2047)
ASP_m_lOnBits(11) = CLng(4095)
ASP_m_lOnBits(12) = CLng(8191)
ASP_m_lOnBits(13) = CLng(16383)
ASP_m_lOnBits(14) = CLng(32767)
ASP_m_lOnBits(15) = CLng(65535)
ASP_m_lOnBits(16) = CLng(131071)
ASP_m_lOnBits(17) = CLng(262143)
ASP_m_lOnBits(18) = CLng(524287)
ASP_m_lOnBits(19) = CLng(1048575)
ASP_m_lOnBits(20) = CLng(2097151)
ASP_m_lOnBits(21) = CLng(4194303)
ASP_m_lOnBits(22) = CLng(8388607)
ASP_m_lOnBits(23) = CLng(16777215)
ASP_m_lOnBits(24) = CLng(33554431)
ASP_m_lOnBits(25) = CLng(67108863)
ASP_m_lOnBits(26) = CLng(134217727)
ASP_m_lOnBits(27) = CLng(268435455)
ASP_m_lOnBits(28) = CLng(536870911)
ASP_m_lOnBits(29) = CLng(1073741823)
ASP_m_lOnBits(30) = CLng(2147483647)
ASP_m_l2Power(0) = CLng(1)
ASP_m_l2Power(1) = CLng(2)
ASP_m_l2Power(2) = CLng(4)
ASP_m_l2Power(3) = CLng(8)
ASP_m_l2Power(4) = CLng(16)
ASP_m_l2Power(5) = CLng(32)
ASP_m_l2Power(6) = CLng(64)
ASP_m_l2Power(7) = CLng(128)
ASP_m_l2Power(8) = CLng(256)
ASP_m_l2Power(9) = CLng(512)
ASP_m_l2Power(10) = CLng(1024)
ASP_m_l2Power(11) = CLng(2048)
ASP_m_l2Power(12) = CLng(4096)
ASP_m_l2Power(13) = CLng(8192)
ASP_m_l2Power(14) = CLng(16384)
ASP_m_l2Power(15) = CLng(32768)
ASP_m_l2Power(16) = CLng(65536)
ASP_m_l2Power(17) = CLng(131072)
ASP_m_l2Power(18) = CLng(262144)
ASP_m_l2Power(19) = CLng(524288)
ASP_m_l2Power(20) = CLng(1048576)
ASP_m_l2Power(21) = CLng(2097152)
ASP_m_l2Power(22) = CLng(4194304)
ASP_m_l2Power(23) = CLng(8388608)
ASP_m_l2Power(24) = CLng(16777216)
ASP_m_l2Power(25) = CLng(33554432)
ASP_m_l2Power(26) = CLng(67108864)
ASP_m_l2Power(27) = CLng(134217728)
ASP_m_l2Power(28) = CLng(268435456)
ASP_m_l2Power(29) = CLng(536870912)
ASP_m_l2Power(30) = CLng(1073741824)
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 = ASP_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
ASP_md5_FF a, b, c, d, x(k + 0), S11, &HD76AA478
ASP_md5_FF d, a, b, c, x(k + 1), S12, &HE8C7B756
ASP_md5_FF c, d, a, b, x(k + 2), S13, &H242070DB
ASP_md5_FF b, c, d, a, x(k + 3), S14, &HC1BDCEEE
ASP_md5_FF a, b, c, d, x(k + 4), S11, &HF57C0FAF
ASP_md5_FF d, a, b, c, x(k + 5), S12, &H4787C62A
ASP_md5_FF c, d, a, b, x(k + 6), S13, &HA8304613
ASP_md5_FF b, c, d, a, x(k + 7), S14, &HFD469501
ASP_md5_FF a, b, c, d, x(k + 8), S11, &H698098D8
ASP_md5_FF d, a, b, c, x(k + 9), S12, &H8B44F7AF
ASP_md5_FF c, d, a, b, x(k + 10), S13, &HFFFF5BB1
ASP_md5_FF b, c, d, a, x(k + 11), S14, &H895CD7BE
ASP_md5_FF a, b, c, d, x(k + 12), S11, &H6B901122
ASP_md5_FF d, a, b, c, x(k + 13), S12, &HFD987193
ASP_md5_FF c, d, a, b, x(k + 14), S13, &HA679438E
ASP_md5_FF b, c, d, a, x(k + 15), S14, &H49B40821
ASP_md5_GG a, b, c, d, x(k + 1), S21, &HF61E2562
ASP_md5_GG d, a, b, c, x(k + 6), S22, &HC040B340
ASP_md5_GG c, d, a, b, x(k + 11), S23, &H265E5A51
ASP_md5_GG b, c, d, a, x(k + 0), S24, &HE9B6C7AA
ASP_md5_GG a, b, c, d, x(k + 5), S21, &HD62F105D
ASP_md5_GG d, a, b, c, x(k + 10), S22, &H2441453
ASP_md5_GG c, d, a, b, x(k + 15), S23, &HD8A1E681
ASP_md5_GG b, c, d, a, x(k + 4), S24, &HE7D3FBC8
ASP_md5_GG a, b, c, d, x(k + 9), S21, &H21E1CDE6
ASP_md5_GG d, a, b, c, x(k + 14), S22, &HC33707D6
ASP_md5_GG c, d, a, b, x(k + 3), S23, &HF4D50D87
ASP_md5_GG b, c, d, a, x(k + 8), S24, &H455A14ED
ASP_md5_GG a, b, c, d, x(k + 13), S21, &HA9E3E905
ASP_md5_GG d, a, b, c, x(k + 2), S22, &HFCEFA3F8
ASP_md5_GG c, d, a, b, x(k + 7), S23, &H676F02D9
ASP_md5_GG b, c, d, a, x(k + 12), S24, &H8D2A4C8A
ASP_md5_HH a, b, c, d, x(k + 5), S31, &HFFFA3942
ASP_md5_HH d, a, b, c, x(k + 8), S32, &H8771F681
ASP_md5_HH c, d, a, b, x(k + 11), S33, &H6D9D6122
ASP_md5_HH b, c, d, a, x(k + 14), S34, &HFDE5380C
ASP_md5_HH a, b, c, d, x(k + 1), S31, &HA4BEEA44
ASP_md5_HH d, a, b, c, x(k + 4), S32, &H4BDECFA9
ASP_md5_HH c, d, a, b, x(k + 7), S33, &HF6BB4B60
ASP_md5_HH b, c, d, a, x(k + 10), S34, &HBEBFBC70
ASP_md5_HH a, b, c, d, x(k + 13), S31, &H289B7EC6
ASP_md5_HH d, a, b, c, x(k + 0), S32, &HEAA127FA
ASP_md5_HH c, d, a, b, x(k + 3), S33, &HD4EF3085
ASP_md5_HH b, c, d, a, x(k + 6), S34, &H4881D05
ASP_md5_HH a, b, c, d, x(k + 9), S31, &HD9D4D039
ASP_md5_HH d, a, b, c, x(k + 12), S32, &HE6DB99E5
ASP_md5_HH c, d, a, b, x(k + 15), S33, &H1FA27CF8
ASP_md5_HH b, c, d, a, x(k + 2), S34, &HC4AC5665
ASP_md5_II a, b, c, d, x(k + 0), S41, &HF4292244
ASP_md5_II d, a, b, c, x(k + 7), S42, &H432AFF97
ASP_md5_II c, d, a, b, x(k + 14), S43, &HAB9423A7
ASP_md5_II b, c, d, a, x(k + 5), S44, &HFC93A039
ASP_md5_II a, b, c, d, x(k + 12), S41, &H655B59C3
ASP_md5_II d, a, b, c, x(k + 3), S42, &H8F0CCC92
ASP_md5_II c, d, a, b, x(k + 10), S43, &HFFEFF47D
ASP_md5_II b, c, d, a, x(k + 1), S44, &H85845DD1
ASP_md5_II a, b, c, d, x(k + 8), S41, &H6FA87E4F
ASP_md5_II d, a, b, c, x(k + 15), S42, &HFE2CE6E0
ASP_md5_II c, d, a, b, x(k + 6), S43, &HA3014314
ASP_md5_II b, c, d, a, x(k + 13), S44, &H4E0811A1
ASP_md5_II a, b, c, d, x(k + 4), S41, &HF7537E82
ASP_md5_II d, a, b, c, x(k + 11), S42, &HBD3AF235
ASP_md5_II c, d, a, b, x(k + 2), S43, &H2AD7D2BB
ASP_md5_II b, c, d, a, x(k + 9), S44, &HEB86D391
a = ASP_AddUnsigned(a, AA)
b = ASP_AddUnsigned(b, BB)
c = ASP_AddUnsigned(c, CC)
d = ASP_AddUnsigned(d, DD)
Next
ASP_MD5 = LCase(ASP_WordToHex(a) & ASP_WordToHex(b) & ASP_WordToHex(c) & ASP_WordToHex(d))
End Function
System.Security.Cryptography.MD5CryptoServiceProvider如果你非要自己写一个,可以参考
http://blog.csdn.net/Ewangsoft/archive/2006/07/22/960980.aspx
和以下的代码功能是一样的吗?public string GetMD5(string strData)
{
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] md5Bytes = System.Text.Encoding.Default.GetBytes(strData);
byte[] cryString = md5.ComputeHash(md5Bytes);
string md5Str = string.Empty;
for (int i=0;i<cryString.Length;i++)
{
md5Str += cryString[i].ToString("X2");
}
return md5Str;
}