YD/T 2270-2011 in English
VALIDTechnical Specification for Keyword-based Internet Addressing Resolution
- Issued on:2011-05-18
- Implemented on:2011-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$388.00
本标准确立了基于关键词的互联网寻址解析技术要求，规定了互联网关键词的资源记录和DNS资源记录的映射、KWRP解析协议规范以及解析系统的安全性需求。
本标准适用于基于关键词的互联网寻址的解析。
Introduction
Analysis of the core content of the standard
This standard defines the addressing and resolution technology framework based on Internet keywords, mainly including:
- Mapping rules between keyword resource records and DNS NAPTR records
- XML Schema definition of KWRP (Keyword Resolution Protocol)
- Parsing process based on DDDS algorithm
- HTTP/UDP protocol carrying solution
Technical architecture comparison
| Dimensions | KWRP method | DNS direct method |
|---|---|---|
| Protocol stack | Application layer protocol (XML encapsulation) | Transport layer protocol (UDP/TCP) |
| Implementation complexity | Need to develop a proxy resolution server | Need to integrate the DDDS algorithm into the client |
| Extensibility | Support multi-protocol bearer | Depend on DNS protocol extension |
Key technology implementation
1. Resource record mapping mechanism
The standard specifies the corresponding relationship between the fields of keyword logic records and DNS NAPTR records:
- Priority → NAPTR Preference field
- URL value → Regexp field (need to comply with RFC3986)
- The Service field is fixed to "K2U"
2. DDDS algorithm application
The Dynamic Delegated Discovery System (DDDS) realizes the conversion from keywords to URIs through iterative queries. The typical processing flow includes:
- Keyword to domain name (such as "@abc:def" → "def.abc.keyword")
- Query NAPTR records to obtain conversion rules
- Generate target URI based on Regexp field
Implementation suggestions
Browser integration solution
It is recommended to adopt a hybrid resolution mode:
- Native support: modify the browser address bar processing logic, built-in KWRP client
- Plug-in extension: implement keyword interception through NPAPI/PPAPI interface
Security enhancement measures
In view of the security risks described in Chapter 10 of the standard, it is recommended to:
- Deploy DNSSEC verification chain
- Enable TLS 1.2+ when HTTPS carries KWRP
- Implement a keyword blacklist filtering mechanism
Evolution direction
As one of the keyword addressing standards, the subsequent development of this standard should focus on:
- Cooperative processing with IDN (Internationalized Domain Names)
- Application of blockchain technology in keyword rights confirmation
- Protocol optimization based on HTTP/3
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