encode asp.. ผมอยากจะ encode รหัสผ่านเข้าฐานข้อมูล access และ un encode ไม่ทราบว่าต้องใช้ function อะไรครับ

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