ASP code is generally clear, there is little encryption, MS has a tool script encoder can be encrypted, this dongdong can be downloaded for free Microsoft Official website, but also has detailed use instructions, but after it encrypted file will have <%@ language = Vbscript.encode%>, the administrator sees this sentence to know that this ASP file is encrypted. There are also related decryption files.
This article provides a simple method, you can encrypt the ASP code, the main idea is to do some operations, such as the whole code to move a bit, basically even if the encryption, the main decryption function is as follows:
function Unencode (temp)
But=1
For I =1 to Len (temp)
If Mid (temp,i,1) <> "Soup" Then
PK=ASC (Mid (temp,i,1))-but
If pk>126 Then
pk=pk-95
ElseIf Pk<32 Then
Pk=pk+95
End If
A=A&CHR (PK)
Else
A=a&vbcrlf
End If
Next
Unencode=a
End Function
function Encode (temp)
But=1
Cc=replace (Temp,vbcrlf, "soup")
For i= 1 to Len (cc)
If Mid (cc,i,1) <> "Soup" Then
PK=ASC (Mid (cc,i,1)) +but
If pk>126 Then
pk=pk-95
ElseIf Pk<32 Then
Pk=pk+95
End If
A=A&CHR (PK)
Else
a=a& "Soup"
End If
Next
A=replace (A, "" "," "" "" ")
Encode=a
End Function
At the time of development, the key ASP code is usually encode and then executed using Excute (Uncode (ipaddr)). This way the administrator can not see the key code directly, generally not in the program with the Encode function, only in the development of the use, in addition, Unencode can also be changed to other function names.
This way encryption is relatively simple, decryption is also very easy.
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