AMC-ACE-O version 0.0.3

Document Type Expired Internet-Draft (idn WG)
Author Adam Costello 
Last updated 2001-03-22
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
plain text pdf htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


AMC-ACE-O is a reversible map from a sequence of Unicode [UNICODE] characters to a sequence of letters (A-Z, a-z), digits (0-9), and hyphen-minus (-), henceforth called LDH characters. Such a map (called an 'ASCII-Compatible Encoding', or ACE) might be useful for internationalized domain names [IDN], because host name labels are currently restricted to LDH characters by [RFC952] and [RFC1123].


Adam Costello (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)