Device Schema Extensions to the SCIM model
draft-shahzad-scim-device-model-04
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 "Expired".
|
|
|---|---|---|---|
| Authors | Muhammad Shahzad , HASSAN IQBAL , Eliot Lear | ||
| Last updated | 2023-04-20 (Latest revision 2023-03-13) | ||
| RFC stream | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | I-D Exists | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
draft-shahzad-scim-device-model-04
Network Working Group M. Shahzad
Internet-Draft H. Iqbal
Intended status: Standards Track North Carolina State University
Expires: 19 October 2023 E. Lear
Cisco Systems
17 April 2023
Device Schema Extensions to the SCIM model
draft-shahzad-scim-device-model-04
Abstract
The initial core schema for SCIM (System for Cross Identity
Management) was designed for provisioning users. This memo specifies
schema extensions that enables provisioning of devices, using various
underlying bootstrapping systems, such as Wifi EasyConnect, RFC 8366
vouchers, and BLE passcodes.
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
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on 19 October 2023.
Copyright Notice
Copyright (c) 2023 IETF Trust and the persons identified as the
document authors. All rights reserved.
Shahzad, et al. Expires 19 October 2023 [Page 1]
Internet-Draft SCIM Device Schema Extensions April 2023
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 carefully, as they describe your rights
and restrictions with respect to this document. Code Components
extracted from this document must include Revised BSD License text as
described in Section 4.e of the Trust Legal Provisions and are
provided without warranty as described in the Revised BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Why SCIM for devices? . . . . . . . . . . . . . . . . . . 3
1.2. Protocol Participants . . . . . . . . . . . . . . . . . . 3
1.3. Schema Description . . . . . . . . . . . . . . . . . . . 4
1.4. Schema Representation . . . . . . . . . . . . . . . . . . 5
1.5. Terminology . . . . . . . . . . . . . . . . . . . . . . . 5
2. ResourceType Device . . . . . . . . . . . . . . . . . . . . . 5
2.1. Common Attributes . . . . . . . . . . . . . . . . . . . . 5
3. SCIM Core Device Schema . . . . . . . . . . . . . . . . . . . 6
3.1. Singular Attributes . . . . . . . . . . . . . . . . . . . 6
4. Device Groups . . . . . . . . . . . . . . . . . . . . . . . . 7
5. Resource Type EndpointApp . . . . . . . . . . . . . . . . . . 8
6. SCIM EndpointApp Schema . . . . . . . . . . . . . . . . . . . 8
6.1. Common Attributes . . . . . . . . . . . . . . . . . . . . 8
6.2. Singular Attributes . . . . . . . . . . . . . . . . . . . 8
6.3. Complex Attribute . . . . . . . . . . . . . . . . . . . . 9
7. SCIM Device Extensions . . . . . . . . . . . . . . . . . . . 10
7.1. BLE Extension . . . . . . . . . . . . . . . . . . . . . . 11
7.1.1. Singular Attributes . . . . . . . . . . . . . . . . . 11
7.1.2. Multivalued Attributes . . . . . . . . . . . . . . . 11
7.1.3. BLE Pairing Method Extensions . . . . . . . . . . . . 12
7.2. DPP EasyConnect Extension . . . . . . . . . . . . . . . . 15
7.2.1. Singular Attributes . . . . . . . . . . . . . . . . . 15
7.2.2. Multivalued Attributes . . . . . . . . . . . . . . . 16
7.3. Zigbee Extension . . . . . . . . . . . . . . . . . . . . 17
7.3.1. Singular Attribute . . . . . . . . . . . . . . . . . 18
7.3.2. Multivalued Attribute . . . . . . . . . . . . . . . . 18
7.4. The Endpoint Applications Extension Schema . . . . . . . 19
7.4.1. Singular Attributes . . . . . . . . . . . . . . . . . 19
7.4.2. Multivalued Attribute . . . . . . . . . . . . . . . . 20
8. Schema JSON Representation . . . . . . . . . . . . . . . . . 22
8.1. Resource Schema . . . . . . . . . . . . . . . . . . . . . 22
8.2. Device Core Schema JSON . . . . . . . . . . . . . . . . . 24
8.3. EndpointApp Schema JSON . . . . . . . . . . . . . . . . . 25
8.4. BLE Extension Schema JSON . . . . . . . . . . . . . . . . 28
8.5. DPP Extension Schema JSON . . . . . . . . . . . . . . . . 32
8.6. Zigbee Extension Schema JSON . . . . . . . . . . . . . . 34
Shahzad, et al. Expires 19 October 2023 [Page 2]
Internet-Draft SCIM Device Schema Extensions April 2023
8.7. EndpointAppsExt JSON Extension Schema . . . . . . . . . . 35
9. Security Considerations . . . . . . . . . . . . . . . . . . . 37
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 38
11. Changes from Earlier Versions . . . . . . . . . . . . . . . . 38
12. APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . 38
12.1. Device Core Schema OpenAPI Representation . . . . . . . 38
12.2. EndpointApp Schema OpenAPI Representation . . . . . . . 40
12.3. BLE Extension Schema OpenAPI Representation . . . . . . 44
12.4. DPP Extension Schema OpenAPI Representation . . . . . . 47
12.5. Zigbee Extension Schema OpenAPI Representation . . . . . 49
12.6. EndpointAppsExt Extension Schema OpenAPI
Representation . . . . . . . . . . . . . . . . . . . . . 50
13. References . . . . . . . . . . . . . . . . . . . . . . . . . 52
13.1. Normative References . . . . . . . . . . . . . . . . . . 52
13.2. Informative References . . . . . . . . . . . . . . . . . 53
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 53
1. Introduction
The Internet of Things presents a management challenge in many
dimensions. One of them is the ability to onboard and manage large
number of devices. There are many models for bootstrapping trust
between devices and network deployments. Indeed it is expected that
different manufacturers will make use of different methods.
SCIM (System for Cross Identity Management) [RFC7643] [RFC7644]
defines a protocol and a schema for provisioning of users. However,
it can easily be extended to provision devices. The protocol and
core schema were designed to permit just such extensions. Bulk
operations are supported. This is good because often devices are
procured in bulk.
1.1. Why SCIM for devices?
Some might ask why SCIM is well suited for this purpose and not, for
example, NETCONF or RESTCONF with YANG. After all, there are all
sorts of existing models available. The answer is that the only
information being passed about the device is neither state nor device
configuration information, but only information necessary to
bootstrap trust so that the device may establish connectivity.
1.2. Protocol Participants
In the normal SCIM model, it was presumed that large federated
deployments would be SCIM clients who provision and remove employees
and contractors as they are enter and depart those deployments, and
federated services such as sales, payment, or conferencing services
would be the servers.
Shahzad, et al. Expires 19 October 2023 [Page 3]
Internet-Draft SCIM Device Schema Extensions April 2023
In the device model, the roles are reversed, and may be somewhat more
varied. A deployment network management system gateway (NMS gateway)
plays the role of the server, receiving information about devices
that are expected to be connected to its network. That server will
apply appropriate local policies regarding whether/how the device
should be connected.
The client may be one of a number of entities:
* A vendor who is authorized to add devices to a network as part of
a sales transaction. This is similar to the sales integration
sometimes envisioned by Bootstrapping Remote Key Infrastructure
(BRSKI) [RFC8995].
* A client application that administrators or employees use to add,
remove, or get information about devices. An example might be an
tablet or phone app that scans Easyconnect QR codes.
+-----------------------------------+
| |
+-----------+ Request | +---------+ |
| onboarding|------------->| SCIM | |
| app |<-------------| Server | |
+-----------+ Ctrl Endpt +---------+ |
| |
+-----------+ | +------------+ +-------+ |
| Control |...........|..| ALG |.........|device | |
| App | | +------------+ +-------+ |
+-----------+ | |
| |
+-----------------------------------+
Figure 1: Basic Architecture
In Figure 1, the onboarding app provides the device particulars. As
part of the response, the SCIM server might provide additional
information, especially in the case of non-IP devices, where an
application-layer gateway may need to be used to communicate with the
device. The control endpoint is one among a number of objects that
may be returned.
1.3. Schema Description
RFC 7643 does not prescribe a language to describe a schema. We have
chosen the JSON schema language [I-D.bhutton-json-schema] for this
purpose. This implies that use of XML for this device extension is
not supported.
Shahzad, et al. Expires 19 October 2023 [Page 4]
Internet-Draft SCIM Device Schema Extensions April 2023
Several additional schemas specify specific onboarding mechanisms,
such as BLE and Wifi Easy Connect.
1.4. Schema Representation
Attributes defined in the device core schema and extensions comprise
characteristics and SCIM datatypes defined in Sections 2.2 and 2.3 of
the [RFC7643]. This RFC does not define new characteristics and
datatypes for the SCIM attributes.
1.5. Terminology
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.
2. ResourceType Device
This section defines a new resource type, 'Device'. The
"ResourceType" schema specifies the metadata about a resource type
(see section 6 of [RFC7643]). The resource "Devices" comprises a
core device schema and several extension schemas. The core schema
provides a minimal resource representation, whereas extension schemas
extend the core schema depending on the device's capability. The
JSON schema for Device resource type is in Section 8.1.
2.1. Common Attributes
The Device schema contains three common attributes as defined in the
[RFC7643].
id
An id is a required and unique attribute of the device core schema
(see section 3.1 of [RFC7643]).
externalID
An externalID is an optional attribute (see section 3.1 of
[RFC7643]).
meta
Meta is a complex attribute and is required (see section 3.1 of
[RFC7643]).
Shahzad, et al. Expires 19 October 2023 [Page 5]
Internet-Draft SCIM Device Schema Extensions April 2023
3. SCIM Core Device Schema
The core device schema provides the minimal representation of a
resource "Device". It contains only those attributes that any device
may need. Not all attributes are optional. The core schema for
"Device" is identified using the schema URI:
"urn:ietf:params:scim:schemas:core:2.0:Device". The following
attributes are defined in the device core schema.
3.1. Singular Attributes
deviceDisplayName
This attribute is of type "string" and provides a human-readable name
for a device. It is intended to be displayed to end-users and should
be suitable for that purpose. The attribute is not required, and is
not case-sensitive. The attribute may be modified and should be
returned by default. No uniqueness constraints are imposed on this
attribute.
adminState
The "adminState" attribute is of type "boolean" and is a mutable
attribute. If set to TRUE, the commands such as connect, disconnect,
subscribe that control app sends to the controller for the devices
will be processed by the controller. If set to FALSE, any command
coming from the control app for the device will be rejected by the
controller. This attribute is required and mutable. The attribute
should be returned by default and there is uniqueness contraint on
the attribute.
mudUrl
The mudUrl attribute represents the URL to the MUD file associated
with this device. This attribute is optional and mutable. The
mudUrl value is case sensitive and not unique. When present, this
attribute may be used as described in [RFC8520]. This attribute is
case sensitive and returned by default.
Shahzad, et al. Expires 19 October 2023 [Page 6]
Internet-Draft SCIM Device Schema Extensions April 2023
+===================+=======+=====+======+=========+========+========+
| Attribute | Multi | Req | Case | Mutable | Return | Unique |
| | Value | | Exact| | | |
+===================+=======+=====+======+=========+========+========+
| deviceDisplayName | F | F | F | RW | Def | None |
+-------------------+-------+-----+------+---------+--------+--------+
| adminState | F | T | F | RW | Def | None |
+-------------------+-------+-----+------+---------+--------+--------+
| mudUrl | F | F | T | RW | Def | None |
+-------------------+-------+-----+------+---------+--------+--------+
Figure 2: Characteristics of device schema attributes. (Req =
Required, T = True, F = False, RW = ReadWrite, and Def = Default)
An example of a device SCIM object is as follows:
<CODE BEGINS>
{
"schemas": ["urn:ietf:params:scim:schemas:core:2.0:Device"],
"id": "e9e30dba-f08f-4109-8486-d5c6a3316111",
"deviceDisplayName": "BLE Heart Monitor",
"adminState": true,
"meta": {
"resourceType": "Device",
"created": "2022-01-23T04:56:22Z",
"lastModified": "2022-05-13T04:42:34Z",
"version": "W\/\"a330bc54f0671c9\"",
"location": "https://example.com/v2/Device/e9e30dba-f08f
-4109-8486-d5c6a3316111"
}
}
<CODE ENDS>
The schema for the device is presented in JSON format in
Section Section 8.2, while the openAPI representation is provided in
Section Section 12.1.
4. Device Groups
Device groups are created using the SCIM groups as defined in
[RFC7643] Section 4.2.
Shahzad, et al. Expires 19 October 2023 [Page 7]
Internet-Draft SCIM Device Schema Extensions April 2023
5. Resource Type EndpointApp
This section defines a new resource type, 'EndpointApp'. The
"ResourceType" schema specifies the metadata about a resource type
(see section 6 of [RFC7643]). The resource "EndpointApp" represents
partner applications that can control and/or receive data from the
devices. The JSON schema for EndpointApp resource type is in
Section 8.1. The attributes comprising EndpointsApp are listed in
Section 6. The "EndpointApp" are included in the enpoint
applications extension ("endpointAppsExt") Section 7.4.
6. SCIM EndpointApp Schema
The schema for "EndpointApp" is identified using the schema URI:
"urn:ietf:params:scim:schemas:core:2.0:EndpointApp". The following
attributes are defined in this schema.
6.1. Common Attributes
The EndpointApp schema contains three common attributes as defined in
the [RFC7643].
6.2. Singular Attributes
applicationType
This attribute is of type "string" and represents the type of
application. It will only contain two values; 'deviceControl' or
'telemetry'. 'deviceControl' is the application send commands to
control the device. 'telemetry' is the application that receives data
from the device. The attribute is required, and is not case-
sensitive. The is attribute readOnly and should be returned by
default. No uniqueness constraints are imposed on this attribute.
applicationName
The "applicationName" attribute is of type "string" and represents a
human readable name for the application. This attribute is required
and mutable. The attribute should be returned by default and there
is no uniqueness contraint on the attribute.
client-token
This attribute type string contains a token that the client will use
to authenticate itself. Each token may be a string up to 500
characters in length. It is mutable, required, case sensitive and
returned by default if exists.
Shahzad, et al. Expires 19 October 2023 [Page 8]
Internet-Draft SCIM Device Schema Extensions April 2023
6.3. Complex Attribute
certificateInfo
It is the complex attribute that Contains x509 certificate's subject
name and root CA information associated with the device control or
telemetry app. It further has three attributes that are described
below.
rootCN
It is the root certificate common name. This attribute is required,
read only, singular and case sensitive.
subjectName
Also known as the Common Name (CN), the Subject Name is a field in
the X.509 certificate that identifies the primary domain or IP
address for which the certificate is issued. This attribute is not
required, read only, singular and case sensitive.
subjectAlternativeName
This attribute allows for the inclusion of multiple domain names and
IP addresses in a single certificate. This enables the certificate
to be used for multiple related domains or IPs without the need for
separate certificates for each. This attribute is not required, read
only, multivalued and case sensitive.
+===================+=======+=====+======+=========+========+========+
| Attribute | Multi | Req | Case | Mutable | Return | Unique |
| | Value | | Exact| | | |
+===================+=======+=====+======+=========+========+========+
| applicationType | F | T | F | R | Def | None |
+-------------------+-------+-----+------+---------+--------+--------+
| applicationName | F | T | F | RW | Def | None |
+-------------------+-------+-----+------+---------+--------+--------+
| client-token | F | T | T | RW | Def | None |
+-------------------+-------+-----+------+---------+--------+--------+
| certificateInfo | F | F | F | R | Def | None |
+-------------------+-------+-----+------+---------+--------+--------+
| rootCN | F | T | T | R | Def | None |
+-------------------+-------+-----+------+---------+--------+--------+
| subjectName | F | F | T | R | Def | None |
+-------------------+-------+-----+------+---------+--------+--------+
| subjectAltName | T | F | T | R | Def | None |
+-------------------+-------+-----+------+---------+--------+--------+
Shahzad, et al. Expires 19 October 2023 [Page 9]
Internet-Draft SCIM Device Schema Extensions April 2023
Figure 3: Characteristics of EndpointApp schema attributes. (Req
= Required, T = True, F = False, R = ReadOnly, RW = ReadWrite,
Manuf = Manufactirer and Def = Default)
Note that attributes client-token and certificateInfo are used for
the authentication of the application. Both SHALL NOT exist together
in the SCIM object. Either client-token or certificateInfo SHALL be
present in the SCIM object.
An example of a endpointApp SCIM object is as follows. Note that
since certificateInfo is present in the example, client-token
attribute is NULL.
<CODE BEGINS>
{
"schemas": ["urn:ietf:params:scim:schemas:core:2.0:EndpointApp"],
"id": "e9e30dba-f08f-4109-8486-d5c6a3316212",
"applicationType": "deviceControl",
"applicationName": "Device Control App 1",
"certificateInfo": {
"rootCN": "DigiCert Global Root CA",
"subjectName": "wwww.example.com",
"subjectAlternativeName": ["xyz.example.com",
"abc.example.com"]
},
"client-token": null,
"meta": {
"resourceType": "EndpointApp",
"created": "2022-01-23T04:56:22Z",
"lastModified": "2022-05-13T04:42:34Z",
"version": "W\/\"a330bc54f0671c9\"",
"location": "https://example.com/v2/EndpointApp/e9e30dba-f08f
-4109-8486-d5c6a3316212"
}
}
<CODE ENDS>
The schema for the endpointApp is presented in JSON format in
Section Section 8.3, while the openAPI representation is provided in
Section Section 12.2.
7. SCIM Device Extensions
SCIM provides various extension schemas, their attributes, JSON
representation, and example object. These schemas extend the core
device schema based on the device's capability (communication stack).
This RFC presents an additional hierarchical level by introducing
extensions within an extension. See below for more details.
Shahzad, et al. Expires 19 October 2023 [Page 10]
Internet-Draft SCIM Device Schema Extensions April 2023
[[ DISCUSS: Is this okay with the working group? ]]
7.1. BLE Extension
This schema extends the device schema to represent the devices
supporting BLE. The extension is identified using the following
schema URI:
urn:ietf:params:scim:schemas:extension:ble:2.0:Device
The attributes are as follows:
7.1.1. Singular Attributes
deviceMacAddress
A string vakue that represent a public MAC address assigned by the
manufacturer. It is a unique 48-bit value. Ir is required, case
insensitive, and it is mutable and return as default. The regex
pattern is the following:
^[0-9A-Fa-f]{2}(:[0-9A-Fa-f]{2}){5}
isRandom
A boolean flag taken from the BLE core specification, 5.3. If FALSE,
the device is using a public MAC address. If TRUE, the device uses a
Random address resolved using IRK. This attribute is not required,
it is mutable, and returned by default. Its default value is FALSE.
separateBroadcastaddress
When present, this address is used for broadcasts/advertisements.
This value MUST NOT be set when an IRK is provided. Its form is the
same as deviceMacAddress. It is not required, multivalued, mutable,
and returned by default.
irk
A string value, Identity resolving key, which is unique for every
device. It is used to resolve the random address. It is required
when addressType is TRUE. It is mutable and return by default.
7.1.2. Multivalued Attributes
versionSupport
Shahzad, et al. Expires 19 October 2023 [Page 11]
Internet-Draft SCIM Device Schema Extensions April 2023
A multivalued attribute that provides all the BLE versions supported
by the device in the form of an array. For example, [4.1, 4.2, 5.0,
5.1, 5.2, 5.3]. It is required, mutable, and return as default.
pairingMethods
An array of pairing methods associated with the BLE device. The
pairing methods may require sub-attributes, such as key/password, for
the device pairing process. To enable the scalability of pairing
methods in the future, they are represented as extensions to
incorporate various attributes that are part of the respective
pairing process. Pairing method extensions are nested inside the BLE
extension. It is required, case sensitive, mutable, and returned by
deafult.
7.1.3. BLE Pairing Method Extensions
The details on pairing methods and their associated attributes are in
section 2.3 of [BLE53]. This memo defines extensions for four
pairing methods that are nested insided the BLE extension schema.
Each extension contains the common attributes Section 2.1. These
extension are are as follows.
(i) pairingNull extension is identified using the following schema
URI:
urn:ietf:params:scim:schemas:extension:pairingNull:2.0:Device
pairingNull does not have any attribute. It allows pairing for BLE
devices that do not require a pairing method.
(ii) pairingJustWorks extension is identified using the following
schema URI:
urn:ietf:params:scim:schemas:extension:pairingJustWorks:2.0:Device
Just works pairing method does not require a key to pair devices.
For completeness, the key attribute is included and is set to 'null'.
Key attribute is required, immutable, and return by default.
(iii) pairingPassKey extension is identified using the following
schema URI:
urn:ietf:params:scim:schemas:extension:pairingPassKey:2.0:Device
Shahzad, et al. Expires 19 October 2023 [Page 12]
Internet-Draft SCIM Device Schema Extensions April 2023
The pass key pairing method requires a 6-digit key to pair devices.
This extension has one singular integer attribute, "key", which is
required, mutable and returned by default. The key pattern is as
follows:
^[0-9]{6}$
(iv) pairingOOB extension is identified using the following schema
URI:
urn:ietf:params:scim:schemas:extension:pairingOOB:2.0:Device
The out-of-band pairing method includes three singular attributes,
i.e., key, randomNumber, and confirmationNumber.
key The key is string value, required and received from out-of-bond
sources such as NFC. It is case sensitive, mutable, and returned by
default.
randomNumber It represents a nounce added to the key. It is and
integer value that is required attribute. It is mutable and returned
by default.
confirmationNumber An integer which some solutions require in RESTful
message exchange. It is not required. It is mutable and returned by
default if it exists.
+====================+=======+=====+======+=========+========+========+
| Attribute | Multi | Req | Case | Mutable | Return | Unique |
| | Value | | Exact| | | |
+====================+=======+=====+======+=========+========+========+
| deviceMacAddress | F | T | F | RW | Def | Manuf |
+--------------------+-------+-----+------+---------+--------+--------+
| isRandom | F | T | F | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
| sepBroadcastAdd | F | T | F | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
| irk | F | F | F | RW | Def | Manuf |
+--------------------+-------+-----+------+---------+--------+--------+
| versionSupport | T | T | F | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
| pairingMethods | T | T | T | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
Figure 4: Characteristics of BLE extension schema attributes.
sepBroadcastAdd is short for separateBroadcastaddress. (Req =
Required, T = True, F = False, RW = ReadWrite, Def = Default, and
Manuf = Manufacturer).
Shahzad, et al. Expires 19 October 2023 [Page 13]
Internet-Draft SCIM Device Schema Extensions April 2023
An example of a device object with BLE extension is as follows:
<CODE BEGINS>
{
"schemas": ["urn:ietf:params:scim:schemas:core:2.0:Device",
"urn:ietf:params:scim:schemas:extension:ble:2.0:Device"],
"id": "e9e30dba-f08f-4109-8486-d5c6a3316111",
"deviceDisplayName": "BLE Heart Monitor",
"adminState": true,
"urn:ietf:params:scim:schemas:extension:ble:2.0:Device" : {
"versionSupport": ["5.3"],
"deviceMacAddress": "2C:54:91:88:C9:E2",
"isRandom": false,
"separateBroadcastAddress": ["AA:BB:88:77:22:11", "AA:BB:88:77
:22:12"],
"pairingMethods": ["urn:ietf:params:scim:schemas:extension
:pairingNull:2.0:Device",
"urn:ietf:params:scim:schemas:extension:pairingJustWorks
:2.0:Device",
"urn:ietf:params:scim:schemas:extension:pairingPassKey:2.0
:Device",
"urn:ietf:params:scim:schemas:extension:pairingOOB:2.0
:Device"],
"urn:ietf:params:scim:schemas:extension:pairingNull:2.0:Device"
: null,
"urn:ietf:params:scim:schemas:extension:pairingJustWorks:2.0
:Device": {
"key": null
},
"urn:ietf:params:scim:schemas:extension:pairingPassKey:2.0
:Device" : {
"key": 123456
},
"urn:ietf:params:scim:schemas:extension:pairingOOB:2.0:Device":
{
"key": "TheKeyvalueRetrievedFromOOB",
"randNumber": 238796813516896
}
},
"meta": {
"resourceType": "Device",
"created": "2022-01-23T04:56:22Z",
"lastModified": "2022-05-13T04:42:34Z",
"version": "W\/\"a330bc54f0671c9\"",
"location": "https://example.com/v2/Device/e9e30dba-f08f-4109
-8486-d5c6a3316111"
}
Shahzad, et al. Expires 19 October 2023 [Page 14]
Internet-Draft SCIM Device Schema Extensions April 2023
}
<CODE ENDS>
The schema for the BLE extension is presented in JSON format in
Section Section 8.4, while the openAPI representation is provided in
Section Section 12.3.
7.2. DPP EasyConnect Extension
A schema that extends the device schema to enable WiFi EasyConnect
(otherwise known as Device Provisioning Protocol). The extension is
identified using the following schema URI:
urn:ietf:params:scim:schemas:extension:dpp:2.0:Device
The attributes in this extension are adopted from [DPP2]. The
attributes are as follows:
7.2.1. Singular Attributes
dppVersion
An integer that represents the version of DPP the device supports.
This attribute is required, case insensitive, mutable, and returned
by default.
bootstrapKey
A string value representing Elliptic-Curve Diffie–Hellman (ECDH)
public key. The base64 encoded lengths for P-256, P-384, and P-521
are 80, 96, and 120 characters. This attribute is required, case-
sensitive, mutable, and returned by default.
deviceMacAddress
The manufacturer assigns the MAC address stored as string. It is a
unique 48-bit value. This attribute is optional, case insensitive,
mutable, and returned by default. The regex pattern is as follows:
^[0-9A-Fa-f]{2}(:[0-9A-Fa-f]{2}){5}.
serialNumber
An alphanumeric serial number, stored as string, may also be passed
as bootstrapping information. This attribute is optional, case
insensitive, mutable, and returned by default.
Shahzad, et al. Expires 19 October 2023 [Page 15]
Internet-Draft SCIM Device Schema Extensions April 2023
7.2.2. Multivalued Attributes
bootstrappingMethod
It is the array of strings of all the bootstrapping methods available
on the enrollee device. For example, [QR, NFC]. This attribute is
optional, case insensitive, mutable, and returned by default.
classChannel
This attribute is an array of strings of global operating class and
channel shared as bootstrapping information. It is formatted as
class/channel. For example, ['81/1','115/36']. This attribute is
optional, case insensitive, mutable, and returned by default.
+====================+=======+=====+======+=========+========+========+
| Attribute | Multi | Req | Case | Mutable | Return | Unique |
| | Value | | Exact| | | |
+====================+=======+=====+======+=========+========+========+
| dppVersion | F | T | F | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
| bootstrapKey | F | T | T | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
| deviceMacAddress | F | F | F | RW | Def | Manuf |
+--------------------+-------+-----+------+---------+--------+--------+
| serialNumber | F | F | F | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
| bootstrappingMethod| T | F | F | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
| classChannel | T | F | F | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
Figure 5: Characteristics of DPP extension schema attributes.
(Req = Required, T = True, F = False, RW = ReadWrite, Def =
Default, and Manuf = Manufacturer).
An example of a device object with DPP extension is below:
Shahzad, et al. Expires 19 October 2023 [Page 16]
Internet-Draft SCIM Device Schema Extensions April 2023
<CODE BEGINS>
{
"schemas": ["urn:ietf:params:scim:schemas:core:2.0:Device",
"urn:ietf:params:scim:schemas:extension:dpp:2.0
:Device"],
"id": "e9e30dba-f08f-4109-8486-d5c6a3316111",
"displayName": "WiFi Heart Monitor",
"adminState": true,
"urn:ietf:params:scim:schemas:extension:dpp:2.0:Device" : {
"dppVersion": 2,
"bootstrappingMethod": ["QR"],
"bootstrapKey":
"MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmt
tZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=",
"deviceMacAddress": "2C:54:91:88:C9:F2",
"classChannel": ["81/1", "115/36"],
"serialNumber": "4774LH2b4044"
},
"meta": {
"resourceType": "Device",
"created": "2022-01-23T04:56:22Z",
"lastModified": "2022-05-13T04:42:34Z",
"version": "W\/\"a330bc54f0671c9\"",
"location": "https://example.com/v2/Device/e9e30dba-f08f
-4109-8486-d5c6a3316111"
}
}
<CODE ENDS>
The schema for the DPP extension is presented in JSON format in
Section Section 8.5, while the openAPI representation is provided in
Section Section 12.4.
7.3. Zigbee Extension
A schema that extends the device schema to enable the provisioning of
Zigbee devices. The extension is identified using the following
schema URI:
urn:ietf:params:scim:schemas:extension:zigbee:2.0:Device
It has one singular attribute and one multivalued attribute. The
attributes are as follows:
Shahzad, et al. Expires 19 October 2023 [Page 17]
Internet-Draft SCIM Device Schema Extensions April 2023
7.3.1. Singular Attribute
deviceEui64Address
An EUI-64 (Extended Unique Identifier) device address stored as
string. This attribute is required, case insensitive, mutable, and
returned by default. The regex pattern is as follows:
^[0-9A-Fa-f]{16}$
7.3.2. Multivalued Attribute
versionSupport
An array of strings of all the Zigbee versions supported by the
device. For example, [3.0]. This attribute is required, case
insensitive, mutable, and returned by default.
+====================+=======+=====+======+=========+========+========+
| Attribute | Multi | Req | Case | Mutable | Return | Unique |
| | Value | | Exact| | | |
+====================+=======+=====+======+=========+========+========+
| deviceEui64Address | F | T | F | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
| versionSupport | T | T | F | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
Figure 6: Characteristics of Zigbee extension schema attributes.
(Req = Required, T = True, F = False, RW = ReadWrite, and Def =
Default)
An example of a device object with Zigbee extension is shown below:
Shahzad, et al. Expires 19 October 2023 [Page 18]
Internet-Draft SCIM Device Schema Extensions April 2023
<CODE BEGINS>
{
"schemas": ["urn:ietf:params:scim:schemas:core:2.0:Device",
"urn:ietf:params:scim:schemas:extension:zigbee:2.0:Device"],
"id": "e9e30dba-f08f-4109-8486-d5c6a3316111",
"displayName": "Zigbee Heart Monitor",
"adminState": true,
"urn:ietf:params:scim:schemas:extension:zigbee:2.0:Device" : {
"versionSupport": ["3.0"],
"deviceEui64Address": "50325FFFFEE76728"
},
"meta": {
"resourceType": "Device",
"created": "2022-01-23T04:56:22Z",
"lastModified": "2022-05-13T04:42:34Z",
"version": "W\/\"a330bc54f0671c9\"",
"location": "https://example.com/v2/Device/e9e30dba-f08f-4109
-8486-d5c6a3316111"
}
}
<CODE ENDS>
The schema for the Zigbee extension is presented in JSON format in
Section Section 8.6, while the openAPI representation is provided in
Section Section 12.5.
7.4. The Endpoint Applications Extension Schema
Sometimes non-IP devices such as those using BLE or Zigbee require an
application gateway interface to manage them. SCIM clients MUST NOT
specify this to describe native IP-based devices.
endpointAppsExt provides the list application that connect to
enterprise gateway. The endpointAppsExt has one multivalued
attribute and two singular attributes. The extension is identified
using the following schema URI:
urn:ietf:params:scim:schemas:extension:endpointAppsExt:2.0:Device
7.4.1. Singular Attributes
DeviceControlEnterpriseEndpoint
Device control apps use this URL of the enterprise endpoint to reach
the enterprise gateway. When the enterprise receives the SCIM object
from the onboarding app, it adds this attribute to it and sends it
Shahzad, et al. Expires 19 October 2023 [Page 19]
Internet-Draft SCIM Device Schema Extensions April 2023
back as a response to the onboarding app. This attribute is
required, case-sensitive, mutable, and returned by default. The
uniqueness is enforced by the enterprise.
telemetryEnterpriseEndpoint
Telemetry apps use this URL of the enterprise endpoint to reach the
enterprise gateway. When the enterprise receives the SCIM object
from the onboarding app, it adds this attribute to it and sends it
back as a response to the onboarding app. This attribute is
required, case-sensitive, mutable, and returned by default. The
uniqueness is enforced by the enterprise.
7.4.2. Multivalued Attribute
applications
This is a complex multivalued attribute. It represents a list of
endpoint applications i.e., deviceControl and telemetry. Each entry
in the list comprises two attributes including "value" and "$ref".
value
It is the identifier of the endpoint application formated as UUID.
It is same as the common attribute "$id" of the resource
"endpointApp". It is readOnly, required, case insensitive and
returned by default.
$ref
It is the reference to the respective endpointApp resource object
stored in the SCIM server. It is readOnly, required, case sensitive
and returned by default.
+====================+=======+=====+======+=========+========+========+
| Attribute | Multi | Req | Case | Mutable | Return | Unique |
| | Value | | Exact| | | |
+====================+=======+=====+======+=========+========+========+
| DevContEntEndpoint | F | T | T | RW | Def | Ent |
+--------------------+-------+-----+------+---------+--------+--------+
| telEntEndpoint | F | T | T | RW | Def | Ent |
+--------------------+-------+-----+------+---------+--------+--------+
| applications | T | T | F | RW | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
| value | F | T | F | R | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
| $ref | F | T | F | R | Def | None |
+--------------------+-------+-----+------+---------+--------+--------+
Shahzad, et al. Expires 19 October 2023 [Page 20]
Internet-Draft SCIM Device Schema Extensions April 2023
Figure 7: Characteristics of EndpointAppsExt extension schema
attributes. DevContEntEndpoint represents attribute
DeviceControlEnterpriseEndpoint and telEntEndpoint represents
telemetryEnterpriseEndpoint. (Req = Required, T = True, F =
False, R = ReadOnly, RW = ReadWrite, Ent = Enterprise, and Def =
Default).
An example of a device object with endpointAppsExt extension is
below:
<CODE BEGINS>
{
"schemas": ["urn:ietf:params:scim:schemas:core:2.0:Device",
"urn:ietf:params:scim:schemas:extension:ble:2.0:Device",
"urn:ietf:params:scim:schemas:extension:endpointAppsExt:2.0
:Device"],
"id": "e9e30dba-f08f-4109-8486-d5c6a3316111",
"displayName": "BLE Heart Monitor",
"adminState": true,
"urn:ietf:params:scim:schemas:extension:ble:2.0:Device" :
{ "versionSupport": ["5.3"],
"deviceMacAddress": "2C:54:91:88:C9:E2",
"addressType": false,
"pairingMethods": [
"urn:ietf:params:scim:schemas:extension:pairingNull:2.0
:Device",
"urn:ietf:params:scim:schemas:extension:pairingJustWorks
:2.0:Device",
"urn:ietf:params:scim:schemas:extension:pairingPassKey:2.0
:Device",
"urn:ietf:params:scim:schemas:extension:pairingOOB:2.0
:Device"],
"urn:ietf:params:scim:schemas:extension:pairingNull:2.0:Device"
: null,
"urn:ietf:params:scim:schemas:extension:pairingJustWorks:2.0
:Device": {
"key": null
},
"urn:ietf:params:scim:schemas:extension:pairingPassKey:2.0
:Device" : {
"key": 123456
},
"urn:ietf:params:scim:schemas:extension:pairingOOB:2.0:Device":
{
"key": "TheKeyvalueRetrievedFromOOB",
"randNumber": 238796813516896
}
Shahzad, et al. Expires 19 October 2023 [Page 21]
Internet-Draft SCIM Device Schema Extensions April 2023
},
"urn:ietf:params:scim:schemas:extension:endpointAppsExt:2.0
:Device": {
"applications": [
{
"value" : "e9e30dba-f08f-4109-8486-d5c6a3316212",
"$ref" : "https://example.com/v2/EndpointApp/e9e30dba-f08f
-4109-8486-d5c6a3316212"
},
{
"value" : "e9e30dba-f08f-4109-8486-d5c6a3316333",
"$ref" : "https://example.com/v2/EndpointApp/e9e30dba-f08f
-4109-8486-d5c6a3316333"
}
],
"DeviceControlEnterpriseEndpoint":
"https//enterprise.com/device_control_app_endpoint/",
"telemetryEnterpriseEndpoint":
"https//enterprise.com/telemetry_app_endpoint/"
},
"meta": {
"resourceType": "Device",
"created": "2022-01-23T04:56:22Z",
"lastModified": "2022-05-13T04:42:34Z",
"version": "W\/\"a330bc54f0671c9\"",
"location": "https://example.com/v2/Device/e9e30dba-f08f-4109
-8486-d5c6a3316111"
}
}
<CODE ENDS>
The schema for the endpointAppsExt extension along with BLE extension
is presented in JSON format in Section Section 8.7, while the openAPI
representation is provided in Section Section 12.6.
8. Schema JSON Representation
8.1. Resource Schema
Shahzad, et al. Expires 19 October 2023 [Page 22]
Internet-Draft SCIM Device Schema Extensions April 2023
<CODE BEGINS>
[
{
"schemas": ["urn:ietf:params:scim:schemas:core:2.0
:ResourceType"],
"id": "Device",
"name": "Device",
"endpoint": "/Device",
"description": "Device Account",
"schema": "urn:ietf:params:scim:schemas:core:2.0:Device",
"schemaExtensions": [
{
"schema": "urn:ietf:params:scim:schemas:extension:ble:2.0
:Device",
"required": false
},
{
"schema": "urn:ietf:params:scim:schemas:extension:dpp:2.0
:Device",
"required": false
},
{
"schema": "urn:ietf:params:scim:schemas:extension:zigbee
:2.0:Device",
"required": false
},
{
"schema": "urn:ietf:params:scim:schemas:extension
:endpointApps:2.0:Device",
"required": false
},
{
"schema": "urn:ietf:params:scim:schemas:extension
:pairingNull:2.0:Device",
"required": false
},
{
"schema": "urn:ietf:params:scim:schemas:extension
:pairingJustWorks:2.0:Device",
"required": false
},
{
"schema": "urn:ietf:params:scim:schemas:extension
:pairingPassKey:2.0:Device",
"required": false
},
{
"schema": "urn:ietf:params:scim:schemas:extension
Shahzad, et al. Expires 19 October 2023 [Page 23]
Internet-Draft SCIM Device Schema Extensions April 2023
:pairingOOB:2.0:Device",
"required": false
}
],
"meta": {
"location": "https://example.com/v2/ResourceTypes/Device",
"resourceType": "ResourceType"
}
},
{
"schemas": ["urn:ietf:params:scim:schemas:core:2.0
:ResourceType"],
"id": "EndpointApp",
"name": "EndpointApp",
"endpoint": "/EndpointApp",
"description": "Endpoint application such as device control and
telemetry.",
"schema": "urn:ietf:params:scim:schemas:core:2.0:EndpointApp",
"meta": {
"location": "https
://example.com/v2/ResourceTypes/EndpointApp",
"resourceType": "ResourceType"
}
}
]
<CODE ENDS>
8.2. Device Core Schema JSON
<CODE BEGINS>
{
"id": "urn:ietf:params:scim:schemas:core:2.0:Device",
"name": "Device",
"description": "Device account",
"attributes" : [
{
"name": "deviceDisplayName",
"type": "string",
"description": "Human readable name of the device, suitable
for displaying to end-users. For example, 'BLE Heart
Monitor' etc.",
"multivalues": false,
"required": false,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
Shahzad, et al. Expires 19 October 2023 [Page 24]
Internet-Draft SCIM Device Schema Extensions April 2023
{
"name": "adminState",
"type": "boolean",
"description": "A mutable boolean value indicating the device
administrative status. If set TRUE, the commands (such as
connect, disconnect, subscribe) that control app sends to
the controller for the devices will be processeed by the
controller. If set FALSE, any command comming from the
control app for the device will be rejected by the
controller.",
"multivalues": false,
"required": true,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
{
"name": "mudUrl",
"type": "reference",
"description": "A URL to MUD file of the device (RFC 8520).",
"multivalues": false,
"required": false,
"caseExact": true,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
}
],
"meta" : {
"resourceType" : "Schema",
"location" :
"/v2/Schemas/urn:ietf:params:scim:schemas:core:2.0:Device"
}
}
<CODE ENDS>
8.3. EndpointApp Schema JSON
<CODE BEGINS>
{
"id": "urn:ietf:params:scim:schemas:core:2.0:EndpointApp",
"name": "EndpointApp",
"description": "Endpoint application and their credentials",
"attributes" : [
{
"name": "applicationType",
"type": "string",
Shahzad, et al. Expires 19 October 2023 [Page 25]
Internet-Draft SCIM Device Schema Extensions April 2023
"description": "This attribute will only contain two values;
'deviceControl' or 'telemetry'.",
"multivalues": false,
"required": true,
"caseExact": false,
"mutability": "readOnly",
"returned": "default",
"uniqueness": "none"
},
{
"name": "applicationName",
"type": "string",
"description": "Human readable name of the application.",
"multivalues": false,
"required": true,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
{
"name": "certificateInfo",
"type": "complex",
"description": "Contains x509 certificate's subject name and
root CA information associated with the device control or
telemetry app.",
"multivalues": false,
"required": false,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none",
"subAttributes" : [
{
"name" : "rootCN",
"type" : "string",
"description" : "A root certificate common name.",
"multiValued" : false,
"required" : true,
"caseExact" : true,
"mutability" : "readOnly",
"returned" : "default",
"uniqueness" : "none"
},
{
"name" : "subjectName",
"type" : "string",
"description" : "Also known as the Common Name (CN), the
Shahzad, et al. Expires 19 October 2023 [Page 26]
Internet-Draft SCIM Device Schema Extensions April 2023
Subject Name is a field in the X.509 certificate that
identifies the primary domain or IP address for which
the certificate is issued.",
"multiValued" : false,
"required" : false,
"caseExact" : true,
"mutability" : "readOnly",
"returned" : "default",
"uniqueness" : "none"
},
{
"name" : "subjectAlternativeName",
"type" : "string",
"description" : "This attribute allows for the inclusion
of multiple domain names and IP addresses in a single
certificate. This enables the certificate to be used
for multiple related domains or IPs without the need
for separate certificates for each.",
"multiValued" : true,
"required" : false,
"caseExact" : true,
"mutability" : "readOnly",
"returned" : "default",
"uniqueness" : "none"
}
]
},
{
"name": "client-token",
"type": "string",
"description": "This attribute contains a token that the
client will use to authenticate itself. Each token may
be a string up to 500 characters in length.",
"multivalues": false,
"required": false,
"caseExact": true,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
}
],
"meta" : {
"resourceType" : "Schema",
"location" :
"/v2/Schemas/urn:ietf:params:scim:schemas:core:2.0:Device"
}
}
<CODE ENDS>
Shahzad, et al. Expires 19 October 2023 [Page 27]
Internet-Draft SCIM Device Schema Extensions April 2023
8.4. BLE Extension Schema JSON
<CODE BEGINS>
[
{
"id": "urn:ietf:params:scim:schemas:extension:ble:2.0:Device",
"name": "bleExtension",
"description": "Ble extension for device account",
"attributes" : [
{
"name": "versionSupport",
"type": "string",
"description": "Provides a list of all the BLE versions
supported by the device. For example, [4.1, 4.2, 5.0,
5.1, 5.2, 5.3].",
"multivalues": true,
"required": true,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
{
"name": "deviceMacAddress",
"type": "string",
"description": "It is the public MAC address assigned by
the manufacturer. It is unique 48 bit value. The regex
pattern is ^[0-9A-Fa-f]{2}(:[0-9A-Fa-f]{2}){5}.",
"multivalues": false,
"required": true,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "Manufacturer"
},
{
"name": "isRandom",
"type": "boolean",
"description": "The isRandom flag is taken from the BLE
core specifications 5.3. If TRUE, device is using
Random address which is resolved using IRK. If not
present, the value is FALSE.",
"multivalues": false,
"required": false,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
Shahzad, et al. Expires 19 October 2023 [Page 28]
Internet-Draft SCIM Device Schema Extensions April 2023
},
{
"name": "separateBroadcastAddress",
"type": "string",
"description": "When present, this address is used for
broadcasts/advertisements. This value MUST NOT be set
when an IRK is provided. Its form is the same as
deviceMa`cAddress.",
"multivalues": true,
"required": false,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
{
"name": "irk",
"type": "string",
"description": "Identity resolving key, which is unique for
every device. It is used to resolve random address.
This value MUST NOT be set when
separateBroadcastAddress is set.",
"multivalues": false,
"required": false,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "Manufacturer"
},
{
"name": "pairingMethods",
"type": "string",
"description": "List of pairing methods associated with the
ble device, stored as schema URI.",
"multivalues": true,
"required": true,
"caseExact": true,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
}
],
"meta" : {
"resourceType" : "Schema",
"location" : "/v2/Schemas/urn:ietf:params:scim:schemas
:extension:ble:2.0:Device"
}
},
Shahzad, et al. Expires 19 October 2023 [Page 29]
Internet-Draft SCIM Device Schema Extensions April 2023
{
"id": "urn:ietf:params:scim:schemas:extension:pairingNull:2.0
:Device",
"name": "nullPairing",
"description": "Null pairing method for ble. It is included for
the devices that do not have a pairing method.",
"meta" : {
"resourceType" : "Schema",
"location" : "/v2/Schemas/urn:ietf:params:scim:schemas
:extension:pairingNull:2.0:Device"
}
},
{
"id": "urn:ietf:params:scim:schemas:extension:pairingJustWorks
:2.0:Device",
"name": "pairingJustWorks",
"description": "Just works pairing method for ble.",
"attributes" : [
{
"name": "key",
"type": "integer",
"description": "Just works does not have any key value. For
completeness, it is added with a key value 'null'.",
"multivalues": false,
"required": true,
"caseExact": false,
"mutability": "immutable",
"returned": "default",
"uniqueness": "none"
}
],
"meta" : {
"resourceType" : "Schema",
"location" : "/v2/Schemas/urn:ietf:params:scim:schemas
:extension:pairingJustWorks:2.0:Device"
}
},
{
"id": "urn:ietf:params:scim:schemas:extension:pairingPassKey
:2.0:Device",
"name": "pairingPassKey",
"description": "Pass key pairing method for ble.",
"attributes" : [
{
"name": "key",
"type": "integer",
"description": "A six digit passkey for ble device. The
pattern of key is ^[0-9]{6}$.",
Shahzad, et al. Expires 19 October 2023 [Page 30]
Internet-Draft SCIM Device Schema Extensions April 2023
"multivalues": false,
"required": true,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
}
],
"meta" : {
"resourceType" : "Schema",
"location" : "/v2/Schemas/urn:ietf:params:scim:schemas
:extension:pairingPassKey:2.0:Device"
}
},
{
"id": "urn:ietf:params:scim:schemas:extension:pairingOOB:2.0
:Device",
"name": "pairingOOB",
"description": "Pass key pairing method for ble.",
"attributes" : [
{
"name": "key",
"type": "string",
"description": "A key value retrieved from out of band
source such as NFC.",
"multivalues": false,
"required": true,
"caseExact": true,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
{
"name": "randomNumber",
"type": "integer",
"description": "Nonce added to the key.",
"multivalues": false,
"required": true,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
{
"name": "confirmationNumber",
"type": "integer",
"description": "Some solutions require confirmation number
in RESTful message exchange.",
Shahzad, et al. Expires 19 October 2023 [Page 31]
Internet-Draft SCIM Device Schema Extensions April 2023
"multivalues": false,
"required": false,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
}
],
"meta" : {
"resourceType" : "Schema",
"location" : "/v2/Schemas/urn:ietf:params:scim:schemas
:extension:pairingOOB:2.0:Device"
}
}
]
<CODE ENDS>
8.5. DPP Extension Schema JSON
<CODE BEGINS>
{
"id": "urn:ietf:params:scim:schemas:extension:dpp:2.0:Device",
"name": "dppExtension",
"description": "Device extension schema for DPP",
"attributes" : [
{
"name": "dppVersion",
"type": "integer",
"description": "Version of DPP this device supports.",
"multivalues": false,
"required": true,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
{
"name": "bootstrappingMethod",
"type": "string",
"description": "The list of all the bootstrapping methods
available on the enrollee device. For example, [QR,
NFC].",
"multivalues": true,
"required": false,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
Shahzad, et al. Expires 19 October 2023 [Page 32]
Internet-Draft SCIM Device Schema Extensions April 2023
},
{
"name": "bootstrapKey",
"type": "string",
"description": "This key is Elliptic-Curve Diffie–Hellman
(ECDH) public key. The base64 encoded length for P-256,
P-384, and P-521 is 80, 96, and 120 characters.",
"multivalues": false,
"required": true,
"caseExact": true,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
{
"name": "deviceMacAddress",
"type": "string",
"description": "The MAC address assigned by the
manufacturer. It is unique 48 bit value. The regex
pattern is ^[0-9A-Fa-f]{2}(:[0-9A-Fa-f]{2}){5}.",
"multivalues": false,
"required": false,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "Manufacturer"
},
{
"name": "classChannel",
"type": "string",
"description": "A list of global operating class and
channel shared as bootstrapping information. It is
formatted as class/channel. For example, '81/1',
'115/36'.",
"multivalues": true,
"required": false,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
{
"name": "serialNumber",
"type": "string",
"description": "An alphanumeric serial number that may also
be passed as bootstrapping information.",
"multivalues": false,
"required": false,
Shahzad, et al. Expires 19 October 2023 [Page 33]
Internet-Draft SCIM Device Schema Extensions April 2023
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
}
],
"meta" : {
"resourceType" : "Schema",
"location" : "/v2/Schemas/urn:ietf:params:scim:schemas
:extension:dpp:2.0:Device"
}
}
<CODE ENDS>
8.6. Zigbee Extension Schema JSON
Shahzad, et al. Expires 19 October 2023 [Page 34]
Internet-Draft SCIM Device Schema Extensions April 2023
<CODE BEGINS>
{
"id": "urn:ietf:params:scim:schemas:extension:zigbee:2.0:Device",
"name": "zigbeeExtension",
"description": "Device extension schema for zigbee.",
"attributes" : [
{
"name": "versionSupport",
"type": "string",
"description": "Provides a list of all the zigbee versions
supported by the device. For example, [3.0].",
"multivalues": true,
"required": true,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
},
{
"name": "deviceEui64Address",
"type": "string",
"description": "The EUI-64 (Extended Unique Identifier)
device address. The regex pattern is ^[0-9A-Fa-f]{16}$.",
"multivalues": false,
"required": true,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none"
}
],
"meta" : {
"resourceType" : "Schema",
"location" : "/v2/Schemas/urn:ietf:params:scim:schemas
:extension:zigbee:2.0:Device"
}
}
<CODE ENDS>
8.7. EndpointAppsExt JSON Extension Schema
<CODE BEGINS>
{
"id": "urn:ietf:params:scim:schemas:extension:endpointAppsExt:2.0
:Device",
"name": "endpointAppsExt",
"description": "Extension for partner endpoint applications that
can onboard, control, and communicate with the device.",
Shahzad, et al. Expires 19 October 2023 [Page 35]
Internet-Draft SCIM Device Schema Extensions April 2023
"attributes" : [
{
"name": "applications",
"type": "complex",
"description": "Includes references to two types of
application that connect with entrprise, i.e.,
deviceControl and telemetry.",
"multivalues": false,
"required": true,
"caseExact": false,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "none",
"subAttributes" : [
{
"name" : "value",
"type" : "string",
"description" : "The identifier of the endpointApp.",
"multiValued" : false,
"required" : true,
"caseExact" : false,
"mutability" : "readOnly",
"returned" : "default",
"uniqueness" : "none"
},
{
"name" : "$ref",
"type" : "reference",
"referenceTypes" : "EndpointApps",
"description" : "The URI of the corresponding
'EndpointApp' resource which will control or obtain
data from the device.",
"multiValued" : false,
"required" : false,
"caseExact" : true,
"mutability" : "readOnly",
"returned" : "default",
"uniqueness" : "none"
}
]
},
{
"name": "DeviceControlEnterpriseEndpoint",
"type": "reference",
"description": "The URL of the enterprise endpoint which
device control apps use to reach enterprise network
gateway.",
"multivalues": false,
Shahzad, et al. Expires 19 October 2023 [Page 36]
Internet-Draft SCIM Device Schema Extensions April 2023
"required": true,
"caseExact": true,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "Enterprise"
},
{
"name": "telemetryEnterpriseEndpoint",
"type": "reference",
"description": "The URL of the enterprise endpoint which
telemetry apps use to reach enterprise network gateway.",
"multivalues": false,
"required": true,
"caseExact": true,
"mutability": "readWrite",
"returned": "default",
"uniqueness": "Enterprise"
}
],
"meta" : {
"resourceType" : "Schema",
"location" : "/v2/Schemas/urn:ietf:params:scim:schemas
:extension:endpointAppsExt:2.0:Device"
}
}
<CODE ENDS>
The following sections provide representations of schemas for both
SCIM resources and service provider schemas. Note that the JSON
representation has been modified for readability and to fit the
specification format.
8.7.1. Resource Schema Representation
The following is intended as an example of the SCIM schema
representation in JSON format for SCIM resources. Where permitted,
individual values and schema MAY change. This example includes
schema representations for "User", "Group", and "EnterpriseUser";
other schema representations are possible.
9. Security Considerations
Because provisioning operations are senstive, each client must be
appropriately authenticated. Certain objects may be read-only or not
visible based on who is connected.
[ More to be added here. ]
Shahzad, et al. Expires 19 October 2023 [Page 37]
Internet-Draft SCIM Device Schema Extensions April 2023
10. IANA Considerations
TBD
11. Changes from Earlier Versions
Draft -01:
* Doh! We forgot the core device schemea!
Draft -00:
* Initial revision
12. APPENDIX
12.1. Device Core Schema OpenAPI Representation
OpenAPI representation of device core schema is as follows:
<CODE BEGINS>
components:
schemas:
Device:
title: Device
description: Device account
type: object
properties:
deviceDisplayName:
type: string
description: "Human readable name of the device, suitable
for displaying to end-users. For example,
'BLE Heart Monitor' etc."
nullable: true
readOnly: false
writeOnly: false
adminState:
type: boolean
description: A mutable boolean value indicating the device
administrative status. If set TRUE, the
commands (such as connect, disconnect,
subscribe) that control app sends to the
controller for the devices will be processeed
by the controller. If set FALSE, any command
comming from the control app for the device
will be rejected by the controller.
nullable: false
readOnly: false
Shahzad, et al. Expires 19 October 2023 [Page 38]
Internet-Draft SCIM Device Schema Extensions April 2023
writeOnly: false
mudUrl:
type: string
format: uri
description: A URL to MUD file of the device (RFC 8520). It
is added for future use. Current usage is not
defined yet.
nullable: true
readOnly: false
writeOnly: false
required:
- adminState
additionalProperties: false
allOf:
- $ref: '#/components/schemas/CommonAttributes'
CommonAttributes:
type: object
properties:
schemas:
type: array
items:
type: string
enum:
- urn:ietf:params:scim:schemas:core:2.0:Device
description: The list of schemas that define the resource.
nullable: false
id:
type: string
format: uri
description: The unique identifier for a resource.
nullable: false
readOnly: true
writeOnly: false
externalId:
type: string
description: An identifier for the resource that is defined
by the provisioning client.
nullable: true
readOnly: false
writeOnly: false
meta:
type: object
readOnly: true
properties:
resourceType:
type: string
description: The name of the resource type of the
resource.
Shahzad, et al. Expires 19 October 2023 [Page 39]
Internet-Draft SCIM Device Schema Extensions April 2023
nullable: false
readOnly: true
writeOnly: false
location:
type: string
format: uri
description: The URI of the resource being returned.
nullable: false
readOnly: true
writeOnly: false
created:
type: string
format: date-time
description: The date and time the resource was added
to the service provider.
nullable: false
readOnly: true
writeOnly: false
lastModified:
type: string
format: date-time
description: The most recent date and time that the
details of this resource were updated at
the service provider.
nullable: false
readOnly: true
writeOnly: false
version:
type: string
description: The version of the resource.
nullable: true
readOnly: true
writeOnly: false
additionalProperties: false
<CODE ENDS>
12.2. EndpointApp Schema OpenAPI Representation
OpenAPI representation of endpointApp schema is as follows:
<CODE BEGINS>
components:
schemas:
EndpointApp:
title: EndpointApp
description: Endpoint application resource
type: object
properties:
Shahzad, et al. Expires 19 October 2023 [Page 40]
Internet-Draft SCIM Device Schema Extensions April 2023
applicationType:
type: string
description: "This attribute will only contain two values;
'deviceControl' or 'telemetry'."
nullable: false
readOnly: true
writeOnly: false
applicationName:
type: string
description: Human readable name of the application.
nullable: false
readOnly: false
writeOnly: false
required:
- applicationType
- applicationName
additionalProperties: true
oneOf:
- $ref: '#/components/schemas/client-token'
- $ref: '#/components/schemas/certificateInfo'
allOf:
- $ref: '#/components/schemas/CommonAttributes'
client-token:
type: string
description: "This attribute contains a token that the client
will use to authenticate itself. Each token may
be a string up to 500 characters in length."
nullable: true
readOnly: false
writeOnly: false
certificateInfo:
type: object
description: "Contains x509 certificate's subject name and
root CA information associated with the device
control or telemetry app."
properties:
rootCN:
type: string
description: "A root certificate common name."
nullable: false
readOnly: true
writeOnly: false
Shahzad, et al. Expires 19 October 2023 [Page 41]
Internet-Draft SCIM Device Schema Extensions April 2023
subjectName:
type: string
description: "Also known as the Common Name (CN), the
Subject Name is a field in the X.509
certificate that identifies the primary
domain or IP address for which the
certificate is issued."
nullable: false
readOnly: true
writeOnly: false
subjectAlternativeName:
type: array
items:
type: string
description: "This attribute allows for the inclusion of
multiple domain names and IP addresses in a
single certificate. This enables the
certificate to be used for multiple related
domains or IPs without the need for
separate certificates for each. "
nullable: true
readOnly: true
writeOnly: false
required:
- rootCN
CommonAttributes:
type: object
properties:
schemas:
type: array
items:
type: string
enum:
- urn:ietf:params:scim:schemas:core:2.0:Device
description: The list of schemas that define the resource.
nullable: false
id:
type: string
format: uri
description: The unique identifier for a resource.
nullable: false
readOnly: true
writeOnly: false
externalId:
type: string
description: An identifier for the resource that is defined
Shahzad, et al. Expires 19 October 2023 [Page 42]
Internet-Draft SCIM Device Schema Extensions April 2023
by the provisioning client.
nullable: true
readOnly: false
writeOnly: false
meta:
type: object
readOnly: true
properties:
resourceType:
type: string
description: The name of the resource type of the
resource.
nullable: false
readOnly: true
writeOnly: false
location:
type: string
format: uri
description: The URI of the resource being returned.
nullable: false
readOnly: true
writeOnly: false
created:
type: string
format: date-time
description: The date and time the resource was added
to the service provider.
nullable: false
readOnly: true
writeOnly: false
lastModified:
type: string
format: date-time
description: The most recent date and time that the
details of this resource were updated at
the service provider.
nullable: false
readOnly: true
writeOnly: false
version:
type: string
description: The version of the resource.
nullable: true
readOnly: true
writeOnly: false
additionalProperties: false
<CODE ENDS>
Shahzad, et al. Expires 19 October 2023 [Page 43]
Internet-Draft SCIM Device Schema Extensions April 2023
12.3. BLE Extension Schema OpenAPI Representation
OpenAPI representation of BLE extension schema is as follows:
<CODE BEGINS>
components:
schemas:
BleDevice:
type: object
description: BLE Device schema.
properties:
schemas:
type: array
items:
type: string
enum:
- urn:ietf:params:scim:schemas:extension:ble:2.0:Device
urn:ietf:params:scim:schemas:extension:ble:2.0:Device:
$ref: '#/components/schemas/BleDeviceExtension'
required: true
BleDeviceExtension:
type: object
properties:
versionSupport:
type: array
items:
type: string
description: Provides a list of all the BLE versions
supported by the device. For example,
[4.1, 4.2, 5.0, 5.1, 5.2, 5.3].
nullable: false
readOnly: false
writeOnly: false
deviceMacAddress:
type: string
description: It is the public MAC address assigned by the
manufacturer. It is unique 48 bit value. The
regex pattern is
^[0-9A-Fa-f]{2}(:[0-9A-Fa-f]{2}){5}.
nullable: false
readOnly: false
writeOnly: false
isRandom:
type: boolean
description: AddressType flag is taken from the BLE core
specifications 5.3. If FALSE, the device is
Shahzad, et al. Expires 19 October 2023 [Page 44]
Internet-Draft SCIM Device Schema Extensions April 2023
using public MAC address. If TRUE, device is
using Random address which is resolved using
the IRK.
nullable: false
readOnly: false
writeOnly: false
separateBroadcastAddress:
type: string
description: "When present, this address is used for
broadcasts/advertisements. This value MUST NOT
be set when an IRK is provided. Its form is
the same as deviceMa`cAddress."
nullable: false
readOnly: false
writeOnly: false
irk:
type: string
description: Identity resolving key, which is unique for
every device. It is used to resolve random
address.
nullable: true
readOnly: false
writeOnly: false
pairingMethods:
type: array
items:
type: string
description: List of pairing methods associated with the
ble device, stored as schema URI.
nullable: true
readOnly: false
writeOnly: false
urn:ietf:params:scim:schemas:extension:pairingNull:2.0:Device:
$ref: '#/components/schemas/NullPairing'
required: false
urn:ietf:params:scim:schemas:extension:pairingJustWorks:2.0:Device:
$ref: '#/components/schemas/PairingJustWorks'
required: false
urn:ietf:params:scim:schemas:extension:pairingPassKey:2.0:Device:
$ref: '#/components/schemas/PairingPassKey'
required: false
urn:ietf:params:scim:schemas:extension:pairingOOB:2.0:Device:
$ref: '#/components/schemas/PairingOOB'
required: false
required:
- versionSupport
Shahzad, et al. Expires 19 October 2023 [Page 45]
Internet-Draft SCIM Device Schema Extensions April 2023
- deviceMacAddress
- AddressType
- pairingMethods
additionalProperties: false
NullPairing:
type: object
properties:
id:
type: string
description: The id of the null pairing schema.
nullable: false
readOnly: true
writeOnly: false
PairingJustWorks:
type: object
description: Just works pairing method for ble
properties:
key:
type: integer
description: Just works does not have any key value. For
completeness, it is added with a key value
'null'.
nullable: false
readOnly: false
writeOnly: false
required:
- key
PairingPassKey:
type: object
description: Pass key pairing method for ble
properties:
key:
type: integer
description: A six digit passkey for ble device.
The pattern of key is ^[0-9]{6}$.
nullable: false
readOnly: false
writeOnly: false
required:
- key
PairingOOB:
type: object
description: Out-of-band pairing method for BLE
properties:
Shahzad, et al. Expires 19 October 2023 [Page 46]
Internet-Draft SCIM Device Schema Extensions April 2023
key:
type: string
description: The OOB key value for ble device.
nullable: false
readOnly: false
writeOnly: false
randomNumber:
type: integer
description: Nonce added to the key
nullable: false
readOnly: false
writeOnly: false
confirmationNumber:
type: integer
description: Some solutions require a confirmation number
in the RESTful message exchange.
nullable: true
readOnly: false
writeOnly: false
required:
- key
- randomNumber
<CODE ENDS>
12.4. DPP Extension Schema OpenAPI Representation
OpenAPI representation of DPP extension schema is as follows:
<CODE BEGINS>
components:
schemas:
DppDevice:
type: object
description: DPP device extension schema
properties:
schemas:
type: array
items:
type: string
enum:
- urn:ietf:params:scim:schemas:extension:dpp:2.0:Device
urn:ietf:params:scim:schemas:extension:dpp:2.0:Device:
$ref: '#/components/schemas/DppDeviceExtension'
required: true
DppDeviceExtension:
type: object
properties:
dppVersion:
Shahzad, et al. Expires 19 October 2023 [Page 47]
Internet-Draft SCIM Device Schema Extensions April 2023
type: integer
description: Version of DPP this device supports.
nullable: false
readOnly: false
writeOnly: false
bootstrappingMethod:
type: array
items:
type: string
description: The list of all the bootstrapping methods
available on the enrollee device. For
example, [QR, NFC].
nullable: true
readOnly: false
writeOnly: false
bootstrapKey:
type: string
description: This key is Elliptic-Curve Diffie–Hellman
(ECDH) public key. The base64 encoded length
for P-256, P-384, and P-521 is 80, 96, and 120
characters.
nullable: false
readOnly: false
writeOnly: false
deviceMacAddress:
type: string
description: The MAC address assigned by the manufacturer.
The regex pattern is
^[0-9A-Fa-f]{2}(:[0-9A-Fa-f]{2}){5}.
nullable: false
readOnly: false
writeOnly: false
classChannel:
type: array
items:
type: string
description: A list of global operating class and channel
shared as bootstrapping information. It is
formatted as class/channel. For example,
'81/1', '115/36'.
nullable: false
readOnly: false
writeOnly: false
serialNumber:
type: string
description: An alphanumeric serial number that may also be
passed as bootstrapping information.
nullable: false
Shahzad, et al. Expires 19 October 2023 [Page 48]
Internet-Draft SCIM Device Schema Extensions April 2023
readOnly: false
writeOnly: false
required:
- dppVersion
- bootstrapKey
additionalProperties: false
<CODE ENDS>
12.5. Zigbee Extension Schema OpenAPI Representation
OpenAPI representation of zigbee extension schema is as follows:
Shahzad, et al. Expires 19 October 2023 [Page 49]
Internet-Draft SCIM Device Schema Extensions April 2023
<CODE BEGINS>
components:
schemas:
ZigbeeDevice:
type: object
description: Zigbee Device schema.
properties:
schemas:
type: array
items:
type: string
enum:
- urn:ietf:params:scim:schemas:extension:zigbee:2.0:Device
urn:ietf:params:scim:schemas:extension:zigbee:2.0:Device:
$ref: '#/components/schemas/ZigbeeDeviceExtension'
required: true
ZigbeeDeviceExtension:
type: object
properties:
versionSupport:
type: array
items:
type: string
description: Provides a list of all the Zigbee versions
supported by the device. For example, [3.0].
nullable: false
readOnly: false
writeOnly: false
deviceEui64Address:
type: string
description: The EUI-64 (Extended Unique Identifier) device
address. The regex pattern is
^[0-9A-Fa-f]{16}$.
nullable: false
readOnly: false
writeOnly: false
required:
- versionSupport
- deviceEui64Address
description: Device extension schema for Zigbee.
<CODE ENDS>
12.6. EndpointAppsExt Extension Schema OpenAPI Representation
OpenAPI representation of endpoint Apps extension schema is as
follows:
Shahzad, et al. Expires 19 October 2023 [Page 50]
Internet-Draft SCIM Device Schema Extensions April 2023
<CODE BEGINS>
components:
schemas:
EndpointAppsExt:
type: object
properties:
applications:
$ref: '#/components/schemas/applications'
DeviceControlEnterpriseEndpoint:
type: string
format: url
description: The URL of the enterprise endpoint which device
control apps use to reach enterprise network
gateway.
nullable: false
readOnly: false
writeOnly: false
telemetryEnterpriseEndpoint:
type: string
format: url
description: The URL of the enterprise endpoint which
telemetry apps use to reach enterprise network
gateway.
nullable: false
readOnly: false
writeOnly: false
required:
- applications
- DeviceControlEnterpriseEndpoint
- telemetryEnterpriseEndpoint
applications:
type: array
items:
value:
type: string
description: The identifier of the endpointApp.
nullable: false
readOnly: true
writeOnly: false
ref:
type: string
format: uri
description: The URI of the corresponding 'EndpointApp'
resource which will control or obtain data from
Shahzad, et al. Expires 19 October 2023 [Page 51]
Internet-Draft SCIM Device Schema Extensions April 2023
the device.
nullable: false
readOnly: true
writeOnly: false
required:
- value
- ref
<CODE ENDS>
13. References
13.1. Normative References
[BLE53] Bluetooth SIG, "Bluetooth Core Specification, Version
5.3", 2021.
[DPP2] Wi-Fi Alliance, "Wi-Fi Easy Connect Specification, Version
2.0", 2020.
[I-D.bhutton-json-schema]
Wright, A., Andrews, H., Hutton, B., and G. Dennis, "JSON
Schema: A Media Type for Describing JSON Documents", Work
in Progress, Internet-Draft, draft-bhutton-json-schema-01,
10 June 2022, <https://datatracker.ietf.org/doc/html/
draft-bhutton-json-schema-01>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC7643] Hunt, P., Ed., Grizzle, K., Wahlstroem, E., and C.
Mortimore, "System for Cross-domain Identity Management:
Core Schema", RFC 7643, DOI 10.17487/RFC7643, September
2015, <https://www.rfc-editor.org/info/rfc7643>.
[RFC7644] Hunt, P., Ed., Grizzle, K., Ansari, M., Wahlstroem, E.,
and C. Mortimore, "System for Cross-domain Identity
Management: Protocol", RFC 7644, DOI 10.17487/RFC7644,
September 2015, <https://www.rfc-editor.org/info/rfc7644>.
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
May 2017, <https://www.rfc-editor.org/info/rfc8174>.
Shahzad, et al. Expires 19 October 2023 [Page 52]
Internet-Draft SCIM Device Schema Extensions April 2023
[RFC8520] Lear, E., Droms, R., and D. Romascanu, "Manufacturer Usage
Description Specification", RFC 8520,
DOI 10.17487/RFC8520, March 2019,
<https://www.rfc-editor.org/info/rfc8520>.
13.2. Informative References
[RFC8995] Pritikin, M., Richardson, M., Eckert, T., Behringer, M.,
and K. Watsen, "Bootstrapping Remote Secure Key
Infrastructure (BRSKI)", RFC 8995, DOI 10.17487/RFC8995,
May 2021, <https://www.rfc-editor.org/info/rfc8995>.
Authors' Addresses
Muhammad Shahzad
North Carolina State University
Department of Computer Science
890 Oval Drive
Campus Box 8206
Raleigh, NC, 27695-8206
United States of America
Email: mshahza@ncsu.edu
Hassan Iqbal
North Carolina State University
Department of Computer Science
890 Oval Drive
Campus Box 8206
Raleigh, NC, 27695-8206
United States of America
Email: hiqbal@ncsu.edu
Eliot Lear
Cisco Systems
Richtistrasse 7
CH-8304 Wallisellen
Switzerland
Phone: +41 44 878 9200
Email: lear@cisco.com
Shahzad, et al. Expires 19 October 2023 [Page 53]