Internet Engineering Task Force (IETF) S. Hollenbeck Request for Comments: 8605 Verisign Labs Category: Informational R. Carney ISSN: 2070-1721 GoDaddy Inc. May 2019
vCard Format Extensions: ICANN Extensions for the Registration Data Access Protocol (RDAP)
This document defines extensions to the vCard data format for representing and exchanging contact information used to implement the Internet Corporation for Assigned Names and Numbers (ICANN) operational profile for the Registration Data Access Protocol (RDAP). The property and parameter defined here are used to add values to RDAP responses that are consistent with ICANN policies.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for informational purposes.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are candidates for any level of Internet Standard; see Section 2 of RFC 7841.
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The "Temporary Specification for gTLD Registration Data" available at <https://www.icann.org/resources/pages/gtld-registration-data-specs- en> was published by the Internet Corporation for Assigned Named and Numbers (ICANN) in 2018. The Temporary Specification includes requirements that cannot currently be met by the Registration Data Access Protocol (RDAP, [RFC7483]) without extending the underlying vCard [RFC6350] specification used to represent RDAP entity objects. This document includes specifications for an additional vCard property and an additional vCard parameter to meet the requirements of the Temporary Specification.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here.
Syntax specifications shown here use the augmented Backus-Naur Form (ABNF) as described in [RFC5234] and are specified as in the base vCard specification [RFC6350].
Purpose: RDAP entity information can be redacted under certain circumstances (e.g., privacy). The Temporary Specification requires that RDAP entity objects representing "Registrant", "Admin", and "Tech" contacts contain an email address or a location for a web form to facilitate email communication with the relevant contact in a way that does not identify the associated individual. The CONTACT-URI property can be used to include URIs representing an email address or a location for a web form.
Value type: A single URI value.
Property parameters: PREF
Description: At least one "mailto", "http", or "https" URI value MUST be provided. Additional CONTACT-URI properties MAY be provided to describe other contact methods. If multiple CONTACT-URI properties are used, the vCard PREF parameter MUST be used to describe the most preferred property as described in Section 5.3 of RFC 6350 [RFC6350].
Hollenbeck & Carney Informational [Page 3]
RFC 8605 ICANN RDAP vCard Extensions May 2019
CONTACT-URI-param = "VALUE=uri" / pref-param ; pref-param from [RFC6350]
Purpose: ICANN requires the use of ISO 3166 [ISO.3166.1988] two- letter codes, not "country names", in RDAP entity responses. This parameter is used to extend the ADR property described in Section 6.3.1 of RFC 6350 [RFC6350].
Description: This parameter contains the ISO 3166 [ISO.3166.1988] two-character country code associated with the "country name" ADR component described in Section 6.3.1 of RFC 6350 [RFC6350].
CC-param = "CC=" 2ALPHA
ADR;TYPE=work;CC=US:;;54321 Oak St;Reston;VA;20190;USA
ADR;TYPE=home;CC=US:;;12345 Elm St;Reston;VA;20190;USA
The CONTACT-URI value is purposefully intended to be a publicly visible contact reference; as such, it cannot require confidentiality protection. There are, however, privacy implications in the choice of a URI scheme for the web form contact method. An "https" URI value can be used to indicate support for confidentiality protection for connections to the server that publishes the web form. This document presents no other security considerations beyond those described in Section 9 of the base vCard specification [RFC6350].