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IDN 变体 TLD 项目 - 针对 IDNA 标签开发和维护根区域标签生成规则的程序 - 供第二轮公众意见征询的草案


论坛公告: 意见征询期开始 日期: 2012 年 12 月 7 日
类别/标签: 顶级域名

国际域名 (IDN) 变体 TLD 项目的处理对象是以不同文字符号书写的顶级域名 (TLD) 变体形式。为了在根区域使用 IDN 变体 TLD,需要对 DNS 根区域建立标签生成规则 (LGR)。

标签生成规则 (LGR) 程序就是针对 IDNA 标签开发和维护根区域标签生成规则的方法。必须实施该程序,以实现对 IDN 变体 TLD 的授权和管理。

标签生成规则 (LGR) 项目团队由全球志愿者(包括专业顾问和 ICANN 工作人员)组成,已制定了 LGR 程序文件的草案。该草案已在 2012 年 10 月 ICANN 多伦多会议的公开会议中进行了讨论。在首次公众意见征询期内获取的意见以及在多伦多会议期间取得的机构群体反馈已纳入当前草案内,并将公布以进行第二轮(即最终一轮)公众意见征询。


公众意见专区 链接:

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Domain Name System
Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as"""" is not an IDN."