Retrieving information about Object Identifiers using the WHOIS protocol
draft-viathinksoft-oidwhois-00
The information below is for an old version of the document.
| Document | Type |
This is an older version of an Internet-Draft whose latest revision state is "Replaced".
|
|
|---|---|---|---|
| Author | Daniel Marschall | ||
| Last updated | 2021-02-09 | ||
| Replaced by | draft-viathinksoft-oidip | ||
| RFC stream | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | I-D Exists | |
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| Send notices to | (None) |
draft-viathinksoft-oidwhois-00
INTERNET-DRAFT D. Marschall
Intended Status: Informational ViaThinkSoft
Expires: August 13, 2021 February 2021
Retrieving information about Object Identifiers
using the WHOIS protocol
draft-viathinksoft-oidwhois-00
Abstract
This document defines a method for retrieving information about
Object Identifiers (OIDs) and their associated Registration
Authorities (RAs) using the WHOIS protocol, in a way that is both
human-readable and machine-readable.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on August 13, 2021.
Copyright Notice
Copyright (c) 2021 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
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carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Terminology . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Authentication Tokens . . . . . . . . . . . . . . . . . . . 4
2.2 Request ABNF Notation . . . . . . . . . . . . . . . . . . . 5
3 Response . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Format and Encoding . . . . . . . . . . . . . . . . . . . . 6
3.2 Structure . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.1 Query-Section (Information about Query and Result) . . 7
3.2.2 Object-Section (Information about the OID) . . . . . . 8
3.2.3 RA-Section (Information about the Current RA) . . . . . 11
3.2.4 Sections for Previous Registration Authorities . . . . 13
3.3 Digital Signature . . . . . . . . . . . . . . . . . . . . . 13
3.4 Date/Time Format . . . . . . . . . . . . . . . . . . . . . 13
3.4.1 Date/Time Format ABNF Notation . . . . . . . . . . . . 14
3.4.2 Date/Time Format Examples . . . . . . . . . . . . . . . 14
4 Referral . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 Full Example . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1 Request . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 Response . . . . . . . . . . . . . . . . . . . . . . . . . 16
6 Alternative Namespaces . . . . . . . . . . . . . . . . . . . . 17
6.1 Example: UUID Namespace . . . . . . . . . . . . . . . . . . 18
7 Internationalization Considerations . . . . . . . . . . . . . . 18
8 Security Considerations . . . . . . . . . . . . . . . . . . . . 19
9 IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 19
10 References . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10.1 Normative References . . . . . . . . . . . . . . . . . . . 20
10.2 Informative References . . . . . . . . . . . . . . . . . . 21
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . 22
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 22
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1 Introduction
An Object Identifier (OID) is an extensively used identification
mechanism jointly developed by ITU-T and ISO/IEC for naming any type
of object with a globally unambiguous name. OIDs provide a
persistent identification of objects based on a hierarchical
structure of Registration Authorities (RA), where each parent has an
Object Identifier and allocates Object Identifiers to child nodes.
More information about Object Identifiers can be found in
Recommendation ITU-T X.660 (2011) | ISO/IEC 9834-1:2012 [X660].
There are a few methods of retrieving information about an OID, like:
(A) Searching through web repositories like <http://www.oid-info.com>
or <http://www.alvestrand.no/objectid/>. This has the disadvantage
that the information is usually not machine-readable without
functionalities like an API.
(B) Retrieving information using the Object Identifier Resolution
System (ORS) as defined in Recommendation ITU-T X.672 (2010) |
ISO/IEC 29168-1:2011 [X672]. This has the disadvantage that
Registration Authorities need to include specific DNS Resource
Records to their domains, and additionally, all RAs of the superior
OIDs must implement the ORS.
This document describes an additional method for retrieving
information about OIDs, which is both human-readable and machine-
readable.
Three of many possible use-case scenarios are:
(1) Many web-browsers and Operating Systems can handle ITU-T X.509
certificates [X509] and usually contain a viewer application that
shows the contents of these certificates. Attributes which are
unknown by the application are either only displayed by their OID, or
hidden to avoid confusion to the user. With OID-WHOIS, the
application could query the name of these unknown OIDs or even
retrieve instructions on how the data described by this OID can be
parsed and displayed.
(2) Applications that handle SNMP (Simple Network Management
Protocol) [RFC1157] might need information about additional MIB files
or their OIDs. OID-WHOIS could aid these applications in gathering
the required information.
(3) In directory services like LDAP (Lightweight Directory Access
Protocol) [RFC4511], applications could query the name of attributes
that are described by an OID the application doesn't know.
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1.1 Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
In this document, "RA" is an abbreviation for "Registration
Authority" and "OID" is an abbreviation for "Object Identifier".
2 Request
OID-WHOIS is based on the WHOIS protocol specified in RFC 3912
[RFC3912].
During the request, the client sends a query beginning with "oid:",
followed by an OID in dot-notation, as defined in RFC 3061, section 2
[RFC3061], but with the following differences:
(1) The OID MAY contain a leading dot.
(2) To query the root of the OID tree, the OID MUST be either missing
or consisting only of a single dot.
Examples of valid queries are:
oid:
oid:.
oid:2.999
oid:.2.999
All OIDs MUST be interpreted as absolute OIDs. Relative OIDs (e.g.
relative to the OID of the Registration Authority operating the WHOIS
service) are not allowed.
The namespace identifier (i.e. "oid") MUST be written in lower-case.
Note: Existing WHOIS servers can add the functionalities described in
this document in addition to their usual operation, i.e. they may
accept queries beginning with "oid:" as well as other types of
queries.
2.1 Authentication Tokens
Some organizations might not want to present their OID information
(or part of it) to the public, e.g. for reasons like privacy or
confidentiality. Therefore, at the end of the query, the client can
append case-sensitive, non-empty alphanumeric authentication tokens
to control the display of confidential information.
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Each authentication token MUST be prepended by a dollar sign ("$").
Examples of valid queries are:
oid:2.999$firstToken
oid:2.999$firstToken$secondToken
Please note that authentication tokens are only weak protection. For
more information, see section 8 "Security Considerations".
2.2 Request ABNF Notation
To define the query string, the following Augmented BNF definitions
will be used. They are based on the ABNF styles of RFC 5234
[RFC5234].
query = namespace ":" optional-oid *( "$" authtoken )
namespace = %x6F %x69 %x64 ; "oid"
optional-oid = [ "." ] [ oid ]
oid = unsigned-number *( "." unsigned-number )
authtoken = 1*( char-or-digit )
digit = %x30-39 ; 0-9
nonzero-digit = %x31-39 ; 1-9
uppercase-char = %x41-5A ; A-Z
lowercase-char = %x61-7A ; a-z
char-or-digit = uppercase-char / lowercase-char / digit
unsigned-number = "0" / nonzero-digit *( digit )
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3 Response
3.1 Format and Encoding
(1) The response MUST be UTF-8 encoded (as defined in RFC 3629
[RFC3629]), without Byte-Order-Mark (BOM).
(2) The response contains multiple lines with field names and values,
which MUST be separated by a double colon (":"). Whitespace
characters after the double colon are allowed.
(3) If possible, each line SHOULD be limited to 80 characters,
including the field name, double colon, value, and whitespaces.
(4) Field names and values MUST be treated case-sensitive.
(5) If a value needs to be split into multiple lines, e.g. if the
line would exceed the length limit, the same field name including
double colon MUST be repeated at the beginning of the next line.
(6) If an attribute has multiple values (e.g. multiple Unicode
labels, alternative email-addresses, etc.), each value MUST be
written in a new line with the same field name.
(7) Lines with the same field name SHALL be kept together.
(8) Comment lines MUST start with a percent sign ("%") at the
beginning of a line, without prepending whitespaces. They MUST NOT
be evaluated by machines (except for signature validation, as
mentioned in section 3.3 "Digital Signature").
3.2 Structure
A response consists of sections, which SHOULD be separated by at
least one empty line and/or comment line.
This document specifies the following sections (which SHALL stay in
this order):
(1) Query-Section which contains the request and the result. This
section MUST start with the field "query".
(2) Object-Section which contains information about the OID. This
section MUST start with the field "object".
(3) RA-Section which contains information about the current
Registration Authority. This section MUST start with the field "ra".
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(4) Optional RA-Sections containing information about RAs which were
previously in charge of managing the OID.
The WHOIS service MAY define additional sections after any of these
sections, but the Query-Section MUST be the first section in the
response.
3.2.1 Query-Section (Information about Query and Result)
This section MUST always be present and MUST start with the field
"query". It MUST be the first section in the response.
Possible fields are:
(1) "query" MUST be present and contain the request of the client
(beginning with the namespace identifier and double colon, i.e.
"oid:"). Canonization or sanitation (like removing a leading dot)
SHOULD NOT be applied at this step. Authentication tokens SHOULD be
omitted, though.
(2) "result" MUST be present and SHALL be one of the following
values:
"Found" means that the WHOIS service can verify that the
requested OID exists. The following sections will contain
information about this OID.
"Not found; superior object found" means that the WHOIS service
cannot verify that the requested OID exists, or it denies that
the OID exists (e.g. because it is confidential). However, the
WHOIS service knows a superior OID which does exist. The
following sections will contain information about that superior
OID instead.
"Not found" means that the WHOIS service cannot verify that the
requested OID exists, or it denies that the OID exists (e.g.
because it is confidential). Additionally, the WHOIS service
does not have information about any superior OID, or their
existence is also denied.
"Service error" means that an internal error occurred, or that
the system is in maintenance mode. The client should try again
later.
(3) "distance" SHOULD be present if it is applicable in the requested
namespace (it is always applicable for OIDs) and if the result is
"Not found; superior object found". A distance of 1 means that the
direct parent was found. A distance of 2 means that the grand-parent
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was found, etc.
(4) "message" SHOULD be present if the result is "Service error". It
contains a message explaining why the service is not available (e.g.
displaying an error message). It MUST NOT be present if the result
has a different value.
The WHOIS service SHOULD NOT add additional fields to this section.
3.2.2 Object-Section (Information about the OID)
This section MUST be present if the result is "Found" or "Not found;
superior object found". It MUST start with the field "object". It
MUST NOT be present if the result is "Not found" or "Service error".
Possible fields are:
(1) "object" contains the OID in dot-notation, prepended by the
namespace identifier and double colon ("oid:"). This field MUST be
present.
(2) "status" MUST be present and SHALL be one of the following
values:
"Information available" means that information about the OID is
fully available.
"Information partially available" means that part of the
information about the OID is not available. Possible reasons
could be that part of the information is redacted due to
confidentiality, or the WHOIS service does only know basic
information, while the full information can be found somewhere
else (e.g. at a referred WHOIS service). The field "attribute"
MAY be used with the value "confidential".
"Information unavailable" means that the information about the
OID is missing, redacted due to confidentiality, or otherwise
unavailable. The field "attribute" MAY be used with the value
"confidential".
(3) "name" (OPTIONAL) contains the name of the OID. It SHOULD be as
short as possible.
(4) "description" (OPTIONAL) contains a short description of the OID.
The description SHOULD only be a single sentence.
(5) "information" (OPTIONAL) contains additional information, e.g.
Management Information Base (MIB) definitions.
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(6) "url" (OPTIONAL, multiple values allowed) contains a URL (as
defined in RFC 3986 [RFC3986]) leading to more information about the
OID.
(7) "asn1-notation" (OPTIONAL, multiple values allowed) contains one
or more possible notations in the ASN.1 syntax, as defined in
Recommendation ITU-T X.680 (2015) | ISO/IEC 8824-1:2015, clause 32.3
[X680], e.g. {joint-iso-itu-t(2) example(999)}.
Note: A line-break, to break up lines which are too long, as
defined in section 3.1 ("Format and Encoding") SHOULD be used.
This is no problem because multiple ASN.1 notations can be
distinguished by their opening curly bracket and their closing
curly bracket.
(8) "iri-notation" (OPTIONAL, multiple values allowed) contains one
or more possible notations in the OID-IRI syntax, as defined in
Recommendation ITU-T X.680 (2015) | ISO/IEC 8824-1:2015, clause 34.3
[X680] (but without quotation marks), e.g. /Joint-ISO-ITU-T/Example.
Note: A line-break, to break up lines which are too long, as
defined in section 3.1 ("Format and Encoding") SHALL NOT be used,
otherwise, it would be ambiguous if the line-break was used to
shorten the line, or if the line-break indicates a new value in
case multiple OID-IRI notations are supplied.
(9) "identifier" (OPTIONAL, multiple values allowed) contains an
alphanumeric identifier ("NameForm") as defined in Recommendation
ITU-T X.680 (2015) | ISO/IEC 8824-1:2015, clause 12.3 [X680].
(10) "standardized-id" (OPTIONAL, multiple values allowed) contains
an alphanumeric identifier that has a standardized "NameForm", i.e.
in ASN.1 notation, it can be written without its associated number.
See more information in Recommendation ITU-T X.680 (2015) | ISO/IEC
8824-1:2015, clause 32.7 [X680].
(11) "unicode-label" (OPTIONAL, multiple values allowed) contains a
Non-integer Unicode label, as defined in Recommendation ITU-T X.680
(2015) | ISO/IEC 8824-1:2015, clause 12.27 [X680].
(12) "long-arc" (OPTIONAL, multiple values allowed) contains a Non-
integer Unicode label that can be used as the first identifier in an
OID Internationalized Resource Identifier (OID-IRI), shortening it.
More information can be found in Recommendation ITU-T X.660 (2011) |
ISO/IEC 9834-1:2012, clause 3.5.8 [X660].
(13) "whois-service" (OPTIONAL) contains an IP-address or hostname of
a system that offers a WHOIS service that can supply information
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about the OID and/or its subordinate OIDs. If the result is "Found"
(i.e. the OID is existing in the local database), then the
information "whois-service" is only informational; its existence is
most likely a hint that subordinate OIDs will be found at that WHOIS
server. If the result is "Not found; superior object found", then
the client SHOULD query the referred WHOIS server to receive more
information about the OID. See more information in section 4
"Referral".
(14) "attribute" (OPTIONAL, multiple values allowed) contains
attributes of the OID. An attribute MUST be one of the following
values:
"confidential" means that information about the OID or part of it
is confidential.
"draft" means that the allocation of the OID is not yet official
and the information is subject to change without notice. This
includes deletion and relocation.
"frozen" means that no more child OIDs can be created under this
OID, e.g. because the RA has stopped operating, but the existing
child OIDs stay valid.
"leaf" means that no child OIDs can be allocated under this OID.
The field "subordinate" SHALL therefore not be present.
"no-identifiers" means that the RA is not allocating alphanumeric
identifiers.
"no-unicode-labels" means that the RA is not allocating Non-
integer Unicode labels.
"retired" means that the OID is withdrawn, revoked, retired,
expired, etc. Please consult Recommendation ITU-T X.660 (2011) |
ISO/IEC 9834-1:2012 [X660] for more information about such cases.
(15) "parent" (OPTIONAL) contains the OID of the nearest known parent
OID, prepended by namespace identifier and double colon, i.e. "oid:".
It MAY be followed by additional human-readable information, e.g. a
description or a list of ASN.1 identifiers. There SHALL be at least
1 whitespace in between.
(16) "subordinate" (OPTIONAL, multiple values allowed) contains a
list of subordinate OIDs, prepended by namespace identifier and
double colon, i.e. "oid:". It MAY be followed by additional human-
readable information, e.g. a description or a list of ASN.1
identifiers. There SHALL be at least 1 whitespace in between.
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(17) "created" (OPTIONAL) contains the date and time (as specified in
section 3.4 "Date/Time Format") when the OID was first allocated by
the RA of the superior OID.
(18) "updated" (OPTIONAL) contains the date and time (as specified in
section 3.4 "Date/Time Format") when the OID information was last
updated.
Additional fields can be defined by the WHOIS service. The field
names SHALL only consist of the lower-case letters "a..z", hyphens
("-") and numbers, and SHOULD be written in the English language.
The field name MUST NOT begin or end with a hyphen and a hyphen MUST
NOT be followed by another hyphen.
3.2.3 RA-Section (Information about the Current RA)
This section MUST NOT be present if the result is "Not found" or
"Service error", otherwise it MAY be present. If it is present, it
MUST start with the field "ra".
Possible fields are:
(1) "ra" contains a general name of the RA, like the name of a
person, the name of a group, or the name of an organization. This
field MUST be present.
(2) "ra-status" MUST be present and SHALL be one of the following
values:
"Information available" means that information about this RA is
fully available.
"Information partially available" means that part of the
information is not available. A possible reason could be that
part of the information is redacted due to confidentiality. The
field "attribute" MAY be used with the value "confidential".
"Information unavailable" means that the data is missing (if the
WHOIS service does only know the name of the RA and nothing
else), redacted due to confidentiality or otherwise unavailable.
The field "attribute" MAY be used with the value "confidential".
(3) "ra-contact-name" (OPTIONAL, multiple values allowed) contains
the name of a person responsible for the allocation of subordinate
OIDs, in case "ra" is a group or organization.
(4) "ra-address" (OPTIONAL) contains the physical location of the RA.
While a fully qualified postal address is recommended, the field can
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also just contain a rough location like city and country name, state
and country name, or just the country name, etc. The name of the
country SHOULD always be present.
(5) "ra-phone" (OPTIONAL, multiple values allowed) contains a
landline phone number of the Registration Authority. It SHOULD be
written in the international number format specified in
Recommendation ITU-T E.164 (2010) [E164], e.g. +1 206 555 0100.
(6) "ra-mobile" (OPTIONAL, multiple values allowed) contains a mobile
phone number of the Registration Authority. It SHOULD be written in
the international number format specified in Recommendation ITU-T
E.164 (2010) [E164], e.g. +1 206 555 0100.
(7) "ra-fax" (OPTIONAL, multiple values allowed) contains a fax
number of the Registration Authority. It SHOULD be written in the
international number format specified in Recommendation ITU-T E.164
(2010) [E164], e.g. +1 206 555 0100.
(8) "ra-email" (OPTIONAL, multiple values allowed) contains an email
address of the Registration Authority.
(9) "ra-url" (OPTIONAL, multiple values allowed) contains a URL (as
defined in RFC 3986 [RFC3986]) leading to more information about the
RA (usually the website of the RA).
(10) "ra-attribute" (OPTIONAL, multiple values allowed) contains
attributes of the RA. An attribute MUST be one of the following
values:
"confidential" means that the information about the RA or part of
it is confidential.
"retired" means that the RA is defunct. If this attribute is set
to the current RA, then the OID MUST have the attribute "frozen"
(until the responsibility is transferred to a non-defunct RA, or
until the current RA becomes active again).
(11) "ra-created" (OPTIONAL) contains the date and time (as specified
in section 3.4 "Date/Time Format") when the RA was created/registered
in the database.
(12) "ra-updated" (OPTIONAL) contains the date and time (as specified
in section 3.4 "Date/Time Format") when the RA information was last
modified.
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Additional fields can be defined by the WHOIS service, but they MUST
begin with "ra-". The field names SHALL only consist of the lower-
case letters "a..z", hyphens ("-") and numbers, and SHOULD be written
in the English language. The field name MUST NOT begin or end with a
hyphen and a hyphen MUST NOT be followed by another hyphen.
3.2.4 Sections for Previous Registration Authorities
To optionally display information about RAs which were previously in
charge of managing the OID, a new section per RA can be added with
the following field name prefixes:
"ra-" is the prefix of the current Registration Authority.
"ra1-" is the prefix of the first RA. It is the very first person or
company to whom the OID was allocated by the RA of the superior OID.
"ra2-" is the prefix of the second RA, after the responsibility has
been transferred. etc.
The definition of these sections is identical to the definition of
the RA-Section (described in section 3.2.3 "RA-Section"), just with a
different prefix.
The history does not need to be complete, e.g. it is no problem to
only serve information about the first and the current RA, or only
serve information about the current RA.
3.3 Digital Signature
If integrity/authenticity is required, the whole response can be
signed, e.g. by using S/MIME, RSA, or PGP. This document does not
describe a mechanism for detecting which signature method was used.
The creation and verification of the signature are therefore
implementation-specific and no interoperability regarding signature
creation and validation is given at this time.
Depending on the signature method being used, various things need to
be appended and/or prepended to the response. These additional lines
MUST be prepended by a percent sign ("%") to avoid that an
application confuses these additional lines (e.g. lines belonging to
a PGP header, as defined in RFC 4880 [RFC4880]) with parts of the
actual WHOIS response.
3.4 Date/Time Format
Date/Time references SHALL be formatted as described in
section 3.4.1.
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If parts of the date/time reference are uncertain, then they SHOULD
be omitted until the date/time reference has the highest correctness.
Examples of valid date/time references can be found in section 3.4.2.
3.4.1 Date/Time Format ABNF Notation
To define the format of a Date/Time reference, the following
Augmented BNF definitions will be used. They are based on the ABNF
styles of RFC 5234 [RFC5234].
date-time = year [ "-" month [ "-" day [ " " time ] ] ]
year = 4*4DIGIT
month = ( "0" %x31-39 ) /
( "1" %x30-32 ) ; 01-12
day = ( "0" %x31-39 ) /
( "1" %x30-39 ) /
( "2" %x30-39 ) /
( "3" %x30-31 ) / ; 01-31
time = hour ":" minute [ ":" second ] [ " " timezone ]
hour = ( "0" %x30-39 ) /
( "1" %x30-39 ) /
( "2" %x30-33 ) ; 00-23
minute = %x30-35 DIGIT ; 00-59
second = %x30-35 DIGIT ; 00-59
timezone = ( "+" / "-" ) hour minute
3.4.2 Date/Time Format Examples
Examples of valid date/time references are:
2020-06-29 18:32:00 +0200
2020-06-29 18:32:00
2020-06-29 18:32 +0200
2020-06-29 18:32
2020-06-29
2020-06
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4 Referral
By using the field "whois-service", the WHOIS service can instruct
the client to query another WHOIS service that might have more
information about the requested OID.
If Registration Authorities maintain up-to-date WHOIS service
references of their OID delegations, it is possible to automatically
retrieve information about any OID.
Example: OID 2.999 is owned by Registration Authority "A", operating
a WHOIS service at "a.example.com".
Registration Authority "A" allocated OID 2.999.1000 to Registration
Authority "B" who is operating a WHOIS service at "b.example.com".
The client asks a.example.com for information about OID 2.999.1000.1
and should receive the following reply:
query: oid:2.999.1000.1
result: Not found; superior object found
distance: 1
object: oid:2.999.1000
status: Information available
name: Company "B"
whois-service: b.example.com
ra: "B"
ra-status: Information unavailable
The client is now aware that "a.example.com" only knows OID
2.999.1000, and that there is a reference to another WHOIS service
located at "b.example.com". So, the client should then accordingly
query "b.example.com", asking for information about OID 2.999.1000.1:
query: oid:2.999.1000.1
result: Found
object: oid:2.999.1000.1
status: Information available
name: Example OID 1
ra: "B"
ra-status: Information unavailable
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5 Full Example
5.1 Request
oid:2.999
5.2 Response
query: oid:2.999
result: Found
object: oid:2.999
status: Information available
name: Example
description: This OID can be used by anyone, for the purposes of
description: documenting examples of Object Identifiers.
asn1-notation: {joint-iso-itu-t(2) example(999)}
iri-notation: /Example
identifier: example
unicode-label: Beispiel
unicode-label: Ejemplo
unicode-label: Example
unicode-label: Exemple
unicode-label: (Korean characters are omitted in this example)
unicode-label: (Arabian characters are omitted in this example)
unicode-label: (Japanese characters are omitted in this example)
unicode-label: (Chinese characters are omitted in this example)
unicode-label: (Russian characters are omitted in this example)
long-arc: Beispiel
long-arc: Ejemplo
long-arc: Example
long-arc: Exemple
long-arc: (Korean characters are omitted in this example)
long-arc: (Arabian characters are omitted in this example)
long-arc: (Japanese characters are omitted in this example)
long-arc: (Chinese characters are omitted in this example)
long-arc: (Russian characters are omitted in this example)
parent: oid:2 (joint-iso-itu-t)
created: 2011-06
updated: 2011-09
ra: ITU-T SG 17 & ISO/IEC JTC 1/SC 6
ra-status: Information unavailable
% -----BEGIN RSA SIGNATURE-----
% DwnqRtx/ONtPh4onXnrZPl9jF+G50RMLZkSwuClaoH2t/yK8CnYJrmzkzA5+gkfWkoQ
% cq+J8J9cvnwXvBfpVHh+7lyNOVW1N016TYFcBt8MVxb6K2KhkKclqeA6wz0kSUuE4qR
% ZohzrZBcCP7aLIpcaoVi6QACAt6J0vOvYBaf0=
% -----END RSA SIGNATURE-----
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6 Alternative Namespaces
This document describes the retrieval of information about OIDs using
the WHOIS protocol. In addition to the OID namespace, the methods
described in this document can also be applied to other namespaces
like "uuid", "isbn", "gtin" etc.
Following things need to be considered if alternative namespaces are
implemented:
(1) The request MUST be UTF-8 encoded (as defined in RFC 3629
[RFC3629]), without Byte-Order-Mark (BOM).
(2) The namespace SHALL be a namespace identifier (NID) as defined in
RFC 8141 [RFC8141].
(3) The namespace identifier SHALL be written in lower-case (this is
already defined in section 2 "Request").
(4) If available, a formal URN namespace identifier (as defined in
RFC 8141, section 5.1 [RFC8141]) SHOULD be used, e.g. "uuid" should
be used instead of "guid".
(5) If things like "Owner", "Creator", "Manager", "Administrator",
etc., are relevant to the identifiers in the namespace, then the RA-
section as described in section 3.2.3 SHALL be used, even though the
word "Registration Authority" might not be appropriate in the
terminology of the namespace.
(6) The namespace specific identifier MUST NOT contain dollar signs
("$"), because section 2.1 "Authentication Tokens" defines them as a
separator for authentication tokens.
(7) The namespace specific identifier MUST be treated case-sensitive
if the namespace distinguishes between lower-case and upper-case.
(8) Fields which can only be used in the OID namespace (e.g.
"unicode-label") MUST NOT be used for other namespaces.
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6.1 Example: UUID Namespace
The following example shows the retrieval of information about
Universally Unique Identifiers (e.g. UUIDs used by the Microsoft
Common Object Model, also known as GUIDs). The UUID namespace has no
hierarchical structure, which means that the WHOIS service can only
respond with the result "Found", "Not found" or "Service error" and
the fields "parent" and "subordinate" cannot be used.
Request:
uuid:b4bfcc3a-db2c-424c-b029-7fe99a87c641
Response:
query: uuid:b4bfcc3a-db2c-424c-b029-7fe99a87c641
result: Found
object: uuid:b4bfcc3a-db2c-424c-b029-7fe99a87c641
status: Information available
name: Desktop
information: GUID can be used in file dialogs as "Custom Place".
ra: Microsoft Corp.
ra-status: Information unavailable
More information about UUIDs can be found in Recommendation ITU-T
X.667 (2012) | ISO/IEC 9834-8:2014 [X667].
More information about the Microsoft Common Object Model (COM) can be
found at Microsoft Docs <https://docs.microsoft.com/en-
us/windows/win32/com/component-object-model--com--portal>.
7 Internationalization Considerations
The original WHOIS protocol as defined in RFC 3912 [RFC3912] does not
define any character set and there is no mechanism for indicating
which character set is in use.
To enhance interoperability, this document specifies that the request
and response MUST be UTF-8 encoded (as defined in RFC 3629
[RFC3629]), without Byte-Order-Mark (BOM).
The WHOIS service can define additional field names, but they SHOULD
be written in the English language so that there is consistency with
the field names defined in this document.
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8 Security Considerations
(1) The knowledge of existence or information about some OIDs could
be considered confidential. In this case, the WHOIS service can
either deny the existence of the requested OID (by setting the result
to "Not found") or redact information in the Object-Section, as
defined in section 3.2.2 "Object-Section".
(2) Registration Authorities might demand that their data is kept
confidential, or at least be partially redacted to increase privacy
or as measurement against spam. In this case, the WHOIS service can
redact information in the RA-Section, as defined in section 3.2.3
"RA-Section".
(3) The WHOIS service can decide if confidential material is omitted
or shown, based on authentication mechanisms like white-listing
client IP addresses or by using authentication tokens supplied by the
client, as defined in section 2.1 "Authentication Tokens".
(4) The usage of authentication tokens is not recommended if the
traffic between client and server is transmitted through an untrusted
network, because the WHOIS protocol is not encrypted.
(5) Authentication tokens must have a sufficient length and
complexity to avoid successful brute force attacks, or the WHOIS
service must limit the number of requests per time.
(6) The WHOIS protocol itself has no mechanism for verifying the
integrity of data received. Due to this fact, the information should
not be trusted if it is transmitted through an untrusted network. If
integrity/authenticity is required, the WHOIS response can be signed,
as described in section 3.3 "Digital Signature". However, this
document does not describe a mechanism for detecting which signature
method was used. Therefore, no interoperability of signature
creation/validation is given at this time.
9 IANA Considerations
(1) IANA is operating a WHOIS service at whois.iana.org. This WHOIS
service could be extended by allowing requests starting with "oid:",
to serve information about OIDs owned or delegated by IANA, for
example, it could output information about Private Enterprise Numbers
(PEN) located at OID 1.3.6.1.4.1.
(2) Owners of Private Enterprise Numbers could store the addresses of
their WHOIS servers in the IANA PEN database so that these addresses
can be included in the WHOIS output of IANA. This would enable the
referral functionality described in section 4 "Referral".
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10 References
10.1 Normative References
[E164] "The international public telecommunication numbering
plan", Recommendation ITU-T E.164 (2010), November 2010.
<http://handle.itu.int/11.1002/1000/10688>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997.
<http://www.rfc-editor.org/info/rfc2119>.
[RFC3061] Mealling, M., "A URN Namespace of Object Identifiers",
RFC 3061, DOI 10.17487/RFC3061, February 2001.
<http://www.rfc-editor.org/info/rfc3061>.
[RFC3629] Yergeau, F., "UTF-8, a transformation format of ISO
10646", STD 63, RFC 3629, DOI 10.17487/RFC3629,
November 2003.
<http://www.rfc-editor.org/info/rfc3629>.
[RFC3912] Daigle, L., "WHOIS Protocol Specification", RFC 3912,
DOI 10.17487/RFC3912, September 2004.
<http://www.rfc-editor.org/info/rfc3912>.
[RFC3986] Berners-Lee, T., "Uniform Resource Identifier (URI):
Generic Syntax", STD 66, RFC 3986, DOI 10.17487/RFC3986,
January 2005.
<http://www.rfc-editor.org/info/rfc3986>.
[RFC5234] Crocker, D. and P. Overell, "Augmented BNF for Syntax
Specifications: ABNF", STD 68, RFC 5234,
DOI 10.17487/RFC5234, January 2008.
<http://www.rfc-editor.org/info/rfc5234>.
[RFC8141] Saint-Andre, P., "Uniform Resource Names (URNs)",
RFC 8141, DOI 10.17487/RFC8141, April 2017.
<http://www.rfc-editor.org/info/rfc8141>.
[X660] "Information technology - Procedures for the operation of
object identifier registration authorities: General
procedures and top arcs of the international object
identifier tree", Recommendation ITU-T X.660 (2011) |
ISO/IEC 9834-1:2012, July 2011.
<http://handle.itu.int/11.1002/1000/11336>.
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[X680] "Information technology - Abstract Syntax Notation One
(ASN.1): Specification of basic notation", Recommendation
ITU-T X.680 (2015) | ISO/IEC 8824-1:2015, August 2015.
<http://handle.itu.int/11.1002/1000/12479>.
10.2 Informative References
[RFC1157] Case, J., Fedor, M., Schoffstall, M., Davin, J., "A Simple
Network Management Protocol (SNMP)", RFC 1157,
DOI 10.17487/RFC1157, May 1990.
<http://www.rfc-editor.org/info/rfc1157>.
[RFC4511] Sermersheim, J., "Lightweight Directory Access Protocol
(LDAP): The Protocol", RFC 4511, DOI 10.17487/RFC4511,
June 2006.
<http://www.rfc-editor.org/info/rfc4511>.
[RFC4880] Callas, J., Donnerhacke, L., Finney, H., Shaw, D., Thayer,
R., "OpenPGP Message Format", RFC 4880,
DOI 10.17487/RFC4880, November 2007.
<http://www.rfc-editor.org/info/rfc4880>.
[X509] "Information technology - Open Systems Interconnection -
The Directory: Public-key and attribute certificate
frameworks", Recommendation ITU-T X.509 (2016) |
ISO/IEC 9594-8:2017, October 2016.
<http://handle.itu.int/11.1002/1000/13031>.
[X667] "Information technology - Procedures for the operation of
object identifier registration authorities: Generation of
universally unique identifiers and their use in object
identifiers", Recommendation ITU-T X.667 (2012) |
ISO/IEC 9834-8:2014, October 2012.
<http://handle.itu.int/11.1002/1000/11746>.
[X672] "Information technology - Open systems interconnection -
Object identifier resolution system",
Recommendation ITU-T X.672 (2010) | ISO/IEC 29168-1:2011,
August 2010.
<http://handle.itu.int/11.1002/1000/10831>.
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Acknowledgements
Olivier Dubuisson
Authors' Addresses
Daniel Marschall
Postfach 11 53
69243 Bammental
Germany
EMail: daniel-marschall@viathinksoft.de
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