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Second Security, Stability, and Resiliency of the DNS (SSR2) Review Team Announces Leadership

SSR2 ICANN58

SSR2 Review Team members at ICANN58 (L-R): James Gannon, Ramkrishna Pariyar, Žarko Kecić, Denise Michel, Jabhera Matogoro, Geoff Huston, Kerry-Ann Barrett, Kaveh Ranjbar, Emily Taylor, Alain Aina, Boban Krsic, Cathy Handley, Eric Osterweil, Mohamad Amin Hasbini. Not pictured: Noorul Ameen, Don M. Blumenthal.


30 March 2017 – The Second Security, Stability and Resiliency of the DNS (SSR2) Review Team is pleased to announce its leadership selections.

Three nominees volunteered themselves for a leadership position. The review team agreed by consensus to leadership by three co-chairs:

  • Denise Michel, Domain Name System Strategy and Management at Facebook, Inc. (GNSO nominee, North America)
  • Eric Osterweil, Principal Scientist at Verisign (RSSAC nominee, North America)
  • Emily Taylor, CEO at Oxford Information Labs Ltd, Associate Fellow Chatham House (GNSO nominee, Europe)

ICANN announced the selection of a 16-member team to conduct the SSR2 review in February 2017. The SSR review was formerly required under the Affirmation of Commitments and is now one of the Specific Reviews under the ICANN Bylaws. The review will examine ICANN's execution of its commitment to enhance the operational stability, reliability, resiliency, security, and global interoperability of the systems and processes, both internal and external, that directly affect, or are affected by, the Internet's system of unique identifiers that ICANN coordinates.

Visit the SSR2 review team wiki to learn more about the team and follow their work.

About ICANN

ICANN's mission is to help ensure a stable, secure and unified global Internet. To reach another person on the Internet, you have to type an address into your computer - a name or a number. That address has to be unique so computers know where to find each other. ICANN helps coordinate and support these unique identifiers across the world. ICANN was formed in 1998 as a not-for-profit public-benefit corporation and a community with participants from all over the world. ICANN and its community help keep the Internet secure, stable and interoperable. It also promotes competition and develops policy for the top-level of the Internet's naming system and facilitates the use of other unique Internet identifiers. For more information please visit: www.icann.org.


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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."