On Sep 6, 2006, at 3:44 PM, Jim Fenton wrote:
The aspect of user-level SSP that concerns me equally is the
transaction load. When user-level SSP is "turned on", the verifier
MUST query for a user-level record in addition to the domain-level
record. User-level queries are not as effectively cached, since
these are queries for individual addresses, not domains.
This depends upon the number of exceptions made, and whether these
exceptions can normally be handled within the domain level
transaction. If this mechanism is intended to provide additional
assurances by way of added annotations for a few email-addresses, it
seems likely this could be accommodated within a domain level
transaction.
-Doug
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