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Trusted Community Representatives Approach to DNSSEC Root Key Management

ICANN, as the IANA functions operator, seeks to improve confidence and acceptance in the DNSSEC security mechanism among the wider Internet community by inviting recognized members of the DNS technical community to be part of the key generation, key backup and key signing process for the root.

As part of the joint effort to secure the domain name system (DNS) and the Root DNSSEC key management process currently under consideration, a number of persons acting as trusted representatives of the Internet community will be sought to participate in the root key generation and signing ceremonies. These persons are called Trusted Community Representatives (TCRs).

ICANN will select 21 TCRs and a number of candidate TCRs. Initially, this will be done on a provisional basis to determine the approach's viability based on the success of the first Hardware Security Module (HSM) initialization and key generation that is scheduled for June 2010. The selection will be based on Statements of Interest, solicited from the Internet community at http://www.root-dnssec.org/tcr/. Persons considered affiliated with ICANN, VeriSign or the U.S. Department of Commerce may not become a Trusted Community Representative.

For more information: http://www.root-dnssec.org/wp-content/uploads/2010/04/ICANN-TCR-Proposal-20100408.pdf [PDF, 102 KB]


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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""icann.org"" is not an IDN."