IDNABIS AGENDA
IETF 75
Stockholm
Agenda
Agenda Bashing
Principles + Objectives (brief) - Cerf
Mapping (Resnick)
Specific Mapping rules
Normative or informational reference?
Tables Update - Faltstrom
BiDi Update - Alvestrand
Outline of required changes to Defs, Protocol, Rational - Klensin
Principles + Objectives
We need to finish this work now
A-label/U-label correspondence must be preserved as a key
element of IDNA2008
No amount of mapping, contexting or restricting will absolutely
prevent phishing or confusion. Nor can those measures force
absolute consistency among system or between applications
on the same system.
Principles + Objectives (2)
We have to rely on zone administrators ("registries") to be
thoughtful and on implementors of applications that call
on DNS lookup functions to exercise good, balanced
judgment about protecting their users while providing
maximum flexbillity.
Corollary: some zone administrators will be anywhere from
negligent to deliberately abusive.
Mapping
If mapping happens during the registration process, the
registrant needs to see the resulting domain name
(which must be valid in accordance with IDNA2008
specifications)
If mapping is done on lookup, strings must be in valid
IDNA2008 form after any mapping
We are NOT trying to be conformant to IDNA2003
We ARE seeking to reduce user surprise (principle
of reduced astonishment)
- Width mapping
- Upper case to lower case maping
- NFC form
General consensus: the case/width/NFC mapping
before lookup is not MUST; might be SHOULD or
MAY or simply advice.