密码加密:
登陆时：
<!--#include file="commonfile/rik.asp"-->
sqls="select * from secret where userid='"&request.form("userid")&"' and ps='"&rik(request.form("password"))&"'"
修改时：<!--#include file="commonfile/rik.asp"-->
sql="insert into secret(userid,ps) values('"&request.form("userid2")&"','"&rik(request.form("password2"))&"')"
将以下代码保存为rik.asp
<%
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 str2bin(varstr)
Dim varasc
Dim i
Dim varchar
Dim varlow
Dim varhigh
str2bin=""
For i=1 To Len(varstr)
varchar=mid(varstr,i,1)
varasc = Asc(varchar)
If varasc<0 Then
varasc = varasc + 65535
End If
If varasc>255 Then
varlow = Left(Hex(Asc(varchar)),2)
varhigh = right(Hex(Asc(varchar)),2)
str2bin = str2bin & chrB("&H" & varlow) & chrB("&H" & varhigh)
Else
str2bin = str2bin & chrB(AscB(varchar))
End If
Next
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 rik_F(x, y, z)
rik_F = (x And y) Or ((Not x) And z)
End Function
Private Function rik_G(x, y, z)
rik_G = (x And z) Or (y And (Not z))
End Function
Private Function rik_H(x, y, z)
rik_H = (x Xor y Xor z)
End Function
Private Function rik_I(x, y, z)
rik_I = (y Xor (x Or (Not z)))
End Function
Private Sub rik_FF(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(rik_F(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Private Sub rik_GG(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(rik_G(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Private Sub rik_HH(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(rik_H(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Private Sub rik_II(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(rik_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 = LenB(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(AscB(MidB(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 rik(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(str2bin(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
rik_FF a, b, c, d, x(k + 0), S11, &HD76AA478
rik_FF d, a, b, c, x(k + 1), S12, &HE8C7B756
rik_FF c, d, a, b, x(k + 2), S13, &H242070DB
rik_FF b, c, d, a, x(k + 3), S14, &HC1BDCEEE
rik_FF a, b, c, d, x(k + 4), S11, &HF57C0FAF
rik_FF d, a, b, c, x(k + 5), S12, &H4787C62A
rik_FF c, d, a, b, x(k + 6), S13, &HA8304613
rik_FF b, c, d, a, x(k + 7), S14, &HFD469501
rik_FF a, b, c, d, x(k + 8), S11, &H698098D8
rik_FF d, a, b, c, x(k + 9), S12, &H8B44F7AF
rik_FF c, d, a, b, x(k + 10), S13, &HFFFF5BB1
rik_FF b, c, d, a, x(k + 11), S14, &H895CD7BE
rik_FF a, b, c, d, x(k + 12), S11, &H6B901122
rik_FF d, a, b, c, x(k + 13), S12, &HFD987193
rik_FF c, d, a, b, x(k + 14), S13, &HA679438E
rik_FF b, c, d, a, x(k + 15), S14, &H49B40821
rik_GG a, b, c, d, x(k + 1), S21, &HF61E2562
rik_GG d, a, b, c, x(k + 6), S22, &HC040B340
rik_GG c, d, a, b, x(k + 11), S23, &H265E5A51
rik_GG b, c, d, a, x(k + 0), S24, &HE9B6C7AA
rik_GG a, b, c, d, x(k + 5), S21, &HD62F105D
rik_GG d, a, b, c, x(k + 10), S22, &H2441453
rik_GG c, d, a, b, x(k + 15), S23, &HD8A1E681
rik_GG b, c, d, a, x(k + 4), S24, &HE7D3FBC8
rik_GG a, b, c, d, x(k + 9), S21, &H21E1CDE6
rik_GG d, a, b, c, x(k + 14), S22, &HC33707D6
rik_GG c, d, a, b, x(k + 3), S23, &HF4D50D87
rik_GG b, c, d, a, x(k + 8), S24, &H455A14ED
rik_GG a, b, c, d, x(k + 13), S21, &HA9E3E905
rik_GG d, a, b, c, x(k + 2), S22, &HFCEFA3F8
rik_GG c, d, a, b, x(k + 7), S23, &H676F02D9
rik_GG b, c, d, a, x(k + 12), S24, &H8D2A4C8A
rik_HH a, b, c, d, x(k + 5), S31, &HFFFA3942
rik_HH d, a, b, c, x(k + 8), S32, &H8771F681
rik_HH c, d, a, b, x(k + 11), S33, &H6D9D6122
rik_HH b, c, d, a, x(k + 14), S34, &HFDE5380C
rik_HH a, b, c, d, x(k + 1), S31, &HA4BEEA44
rik_HH d, a, b, c, x(k + 4), S32, &H4BDECFA9
rik_HH c, d, a, b, x(k + 7), S33, &HF6BB4B60
rik_HH b, c, d, a, x(k + 10), S34, &HBEBFBC70
rik_HH a, b, c, d, x(k + 13), S31, &H289B7EC6
rik_HH d, a, b, c, x(k + 0), S32, &HEAA127FA
rik_HH c, d, a, b, x(k + 3), S33, &HD4EF3085
rik_HH b, c, d, a, x(k + 6), S34, &H4881D05
rik_HH a, b, c, d, x(k + 9), S31, &HD9D4D039
rik_HH d, a, b, c, x(k + 12), S32, &HE6DB99E5
rik_HH c, d, a, b, x(k + 15), S33, &H1FA27CF8
rik_HH b, c, d, a, x(k + 2), S34, &HC4AC5665
rik_II a, b, c, d, x(k + 0), S41, &HF4292244
rik_II d, a, b, c, x(k + 7), S42, &H432AFF97
rik_II c, d, a, b, x(k + 14), S43, &HAB9423A7
rik_II b, c, d, a, x(k + 5), S44, &HFC93A039
rik_II a, b, c, d, x(k + 12), S41, &H655B59C3
rik_II d, a, b, c, x(k + 3), S42, &H8F0CCC92
rik_II c, d, a, b, x(k + 10), S43, &HFFEFF47D
rik_II b, c, d, a, x(k + 1), S44, &H85845DD1
rik_II a, b, c, d, x(k + 8), S41, &H6FA87E4F
rik_II d, a, b, c, x(k + 15), S42, &HFE2CE6E0
rik_II c, d, a, b, x(k + 6), S43, &HA3014314
rik_II b, c, d, a, x(k + 13), S44, &H4E0811A1
rik_II a, b, c, d, x(k + 4), S41, &HF7537E82
rik_II d, a, b, c, x(k + 11), S42, &HBD3AF235
rik_II c, d, a, b, x(k + 2), S43, &H2AD7D2BB
rik_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
rik = LCase(WordToHex(a) & WordToHex(b) & WordToHex(c) & WordToHex(d)) '32byte密码
'rik=LCase(WordToHex(b) & WordToHex(c)) '16byte密码
End Function
%>