<div dir="ltr">Well, actually even with a single OpenID account and login, you can still prevent sites from collaborating and figuring out where you've been by comparing identifiers. That's one of the scenarios that directed identity in OpenID 2.0 enables. The OP just has to issue pairwise unique identifiers. No OP to date does this that I know of, but it's entirely possible and not difficult either.<br>
<br><div class="gmail_quote">On Tue, Oct 21, 2008 at 2:27 PM, SitG Admin <span dir="ltr"><<a href="mailto:sysadmin@shadowsinthegarden.com">sysadmin@shadowsinthegarden.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="Ih2E3d"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
OpenID does not mandate that sites you log into automatically know anything at all about you except an identifier by which it can recognize you at your next visit.<br>
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Additionally, only *that* site needs to recognize you on your next visit:<div class="Ih2E3d"><br>
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<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
With none of that mandated, OpenID still gives you the ability to log in with just a single username and password across the web.<br>
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And let's say you're willing to give up this convenience: NOTHING is preventing you from having more than one ID! You can easily use one OpenID per site, preventing those sites from connecting your ID at one site with your ID at another site just by comparing notes.<br>
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-Shade<br>
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