| Presentation | 2001/11/14 New Query Type for Internationalized Domain Names Hongbo Shi, Shigeki Goto, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a new query type in Domain Name System (DNS) called IDNQUERY. It is used to cover internationalized domain names (IDNs) encoded in non-ASCII characters, like Unicode (UTF-8). IDNQUERY provides IDNs based on binary string. The IDN allows a user to specify multi-lingual domain names in Japanese, Chinese, and Korean. The IDN is a proper extension of the current DNS. Earlier implementations of DNS and applications provide domain names encoded in 7-bit ASCII only. These old systems and applications are designed on a text base. DNS can be a complete 8-bit clean protocol. There are good reasons to use domain names in 8-bit encoding. Older systems and applications are still working, and they do not work properly when they receive an IDN in 8-bit encoding. Several proposals to realize IDNs in UTF-8 have been discussed at IDN WG in IETF (Internet Engineering Task Force). However, none of them can be used with the older systems and applications because they have trouble with IDNs in 8-bit encoding. This paper proposes a new query type in DNS, IDNQUERY, which sends a query including an IDN in 8-bit encoding. Older DNS and applications can return an error message when they receive a query including an IDN in 8-bit encoding by reading the OPCODE in HEADER of IDNQUERY. This paper proposes the IDNQUERY which can cover both text based IDNs, including ACE, and binary sting based IDNs, such as UTF-8, in the current existing DNS environment. The solution in this paper lets binary string based domain names coexist with existing DNS. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Domain Name System / Internationalized Domain Names / QUERY TYPE / OPCODE / EDNS / UTF-8 / ASCII / Compatible Encoding |
| Paper # | IA2001-21 |
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| Conference Information | |
| Committee | IA |
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| Conference Date | 2001/11/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Internet Architecture(IA) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | New Query Type for Internationalized Domain Names |
| Sub Title (in English) | |
| Keyword(1) | Domain Name System |
| Keyword(2) | Internationalized Domain Names |
| Keyword(3) | QUERY TYPE |
| Keyword(4) | OPCODE |
| Keyword(5) | EDNS |
| Keyword(6) | UTF-8 |
| Keyword(7) | ASCII |
| Keyword(8) | Compatible Encoding |
| 1st Author's Name | Hongbo Shi |
| 1st Author's Affiliation | School of Science and Engineering, Waseda University() |
| 2nd Author's Name | Shigeki Goto |
| 2nd Author's Affiliation | School of Science and Engineering, Waseda University |
| Date | 2001/11/14 |
| Paper # | IA2001-21 |
| Volume (vol) | vol.101 |
| Number (no) | 440 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |