> I have a comment on section 5.2.1.4. I'm under the impression that
> instead of solving the problem of replay attack in the
> non-SSL transport
> case, SAML is saying "Well, it's a problem."
> The solution is simply to add IssueInstant (perhaps optionally) to
> Request (and perhaps Response). This bounds the ID-based
> replay cache to
> a short period and solves the problem (to the extent that it's
> solvable).
> Is there a reason for not doing this?
This is pretty much the conclusion we came to at the last F2F. I
mentioned it during the meeting as a possibility, and this is our
example case for why we need to complete the review of sec-cons before
freezing the core.
C.