Re: [imi] Question regarding encryption

[John Bradley <jbradley@mac.com>]

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Yes, I think in practice a non-auditing card may not meet LoA 3.   It =
would at least be a discussion.

We went with requiring auditing in the IMI profile to avoid that debate.

Yes holder of key could work with non Auditing,  but at the moment HoK =
is controlled by the RP and not supported by most of the selectors,  =
while auditing is controlled by the issuer.

If there where a way for the issuer to indicate that HoK MUST be used =
with the card, that becomes more practical.=20

Zero knowledge tokens may also be a future solution,  but not in the =
near term.

John B.
On 2009-12-07, at 10:50 AM, Scott Cantor wrote:

> Mario Ivkovic wrote on 2009-12-07:
>> I was thinking of a government-driven IdP where users probably don't =
want
>> the IdP to know all services they use.
>=20
> The problem is that bearer tokens are not very safe to use without =
audience
> restrictions. Non-auditing mode is fine in theory and broken in =
practice
> unless a holder of key model is used.
>=20
> -- Scott
>=20
>=20
>=20
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>=20


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