user_pay_net_epay_success.asp

电影ASP文件

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	''epay.net.cn易付在线支付交易平台给商户订单回调文件要包括下面MD5 算法的实现
	'    下面的一段是MD5 算法的ASP实现
	'	 如果你是别的程序,如jsp请换成该语言的 版本
	'---------------   MD5 算法开始  -------------------
	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