这段ASP的密码要如何设置啊？整段什么意思啊？

<%
StrSQL="DBQ="+server.mappath("../data/webnews.mdb")+";DRIVER={Microsoft Access Driver (*.mdb)};"
set conn=server.createobject("ADODB.CONNECTION")
conn.open StrSQL
sub CloseConn()
    conn.close
    set conn=nothing
end sub
function decrypt(dcode)   
dim texts
dim i
for i=1 to len(dcode)
texts=texts & chr(asc(mid(dcode,i,2))-i)
next
decrypt=texts
end function
function encrypt(ecode)
Dim texts
dim i
for i=1 to len(ecode)
texts=texts & chr(asc(mid(ecode,i,2))+i)
next
encrypt = texts
end function
%>