However you expose it, it always can be faked IMO...

Um, the solution is to NOT expose it

If its private data, only the server is supposed to modify, the solution is to only let the server modify it

I think you need to explain the architecture of your application, draw a plain ASCII diagram or flowchart

Think of the server as a bartender, who needs to check id, serve drinks, make change ... only bartender touches the cash register, customers always have to go through bartender, and he knows how to spot fake currency, fake ids, how much vodka is left ... bartender is gatekeeper

See The Architecture of Open Source Applications


In reply to Re^3: A question about web service security by Anonymous Monk
in thread A question about web service security by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.