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ICANN Announces New Staff Appointment

ICANN is pleased to announce the appointment of Dave Piscitello to the position of Security and Stability Advisory Committee (SSAC) Fellow. In this position Dave will work closely with Steve Crocker and other SSAC members and ICANN staff to review and report on issues relating to the Domain Name and Addressing Systems which encompass this field of expertise.

Dave is a recognized expert in the fields of Internet Routing and Security. For a number of years Dave has run his own consultancy, providing advice and solutions to a number of organizations both public and private. He is well published both as a freelance writer in publications such as the Business Communications Review, Wall Street Ticker, CMP Security Pipeline and ISSA Journal. He has co-authored two books on Internet technologies and served as an acquisitions editor for a major Publisher. Dave has also provided editorial supervision of web information portals and conference program development for MediaLive International.

In his earlier career, Dave worked on a variety of projects as a member of technical staff for Bell Communications Research and Unisys Corporation.

Dave holds a BS in Mathematics from Villanova University. He has also achieved a number of personal honors and awards including a President's Recognition Award during his tenure at Bellcore. He is the Founder and former Chair of The Internet Security Conference, a member of ISSA, the Information Systems Security Association, and a certified Internet firewall administrator.


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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."