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SSAC 审查 - 工作组报告草案


开放 : 2009 年 10 月 5 日
关闭 : 2009 年 11 月 22 日

说明 / 背景 : 理事会指定了 JAS Communications 作为安全与稳定咨询委员会 (SSAC) 的独立审查顾问。 JAS 于 2009 年 2 月发布了 最终报告草案 [PDF, 673 KB] , 以便向 ICANN 墨西哥城会议提交并与机构群体开展讨论。

在报告提交期间以及随后的 公众意见征询 期收到的意见已由顾问在 审查报告的终稿 [PDF, 775 KB] 中进行了处理。

此后 , SSAC 审查工作组向 SSAC 机构群体展开了一轮更广泛的咨询 , 机构群体发布了一份结构清晰的文档 , 对工作组的工作提供了意见和建议 ; 审查工作组还通过 公众意见征询流程 向一般公众征询了意见。

在对获得的资料及收集到的众多意见进行分析后 , SSAC 审查工作组现发布了 报告草案 [PDF, 392 KB] , 将在首尔会议上提交并征询公众意见。在公众意见征询期结束后,此报告将定案供理事会付诸行动。
负责人 : Marco Lorenzoni

公告 | 讨论空间 | 对意见的总结/分析

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."