]> North Carolina State University

Department of Computer Science 890 Oval Drive Campus Box 8206 Raleigh, NC 27695-8206 USA mshahza@ncsu.edu

North Carolina State University

Department of Computer Science 890 Oval Drive Campus Box 8206 Raleigh, NC 27695-8206 USA hiqbal@ncsu.edu

Cisco Systems

Richtistrasse 7 Wallisellen CH-8304 Switzerland +41 44 878 9200 lear@cisco.com

Internet-Draft 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.

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) 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.

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.

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. 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) . 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.

| SCIM | | | app |<-------------| Server | | +-----------+ Ctrl Endpt +---------+ | | | +-----------+ | +------------+ +-------+ | | Control |...........|..| ALG |.........|device | | | App | | +------------+ +-------+ | +-----------+ | | | | +-----------------------------------+ ]]>

In , 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.

Schema Description RFC 7643 does not prescribe a language to describe a schema. We have chosen the JSON schema language for this purpose. This implies that use of XML for this device extension is not supported. Several additional schemas specify specific onboarding mechanisms, such as BLE and Wifi Easy Connect.

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 . This RFC does not define new characteristics and datatypes for the SCIM attributes.

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 when, and only when, they appear in all capitals, as shown here.

ResourceType Device This section defines a new resource type, 'Device'. The "ResourceType" schema specifies the metadata about a resource type (see section 6 of ). 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 .

Common Attributes The Device schema contains three common attributes as defined in the . id An id is a required and unique attribute of the device core schema (see section 3.1 of ). externalID An externalID is an optional attribute (see section 3.1 of ). meta Meta is a complex attribute and is required (see section 3.1 of ).

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.

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 . This attribute is case sensitive and returned by default.

An example of a device SCIM object is as follows:

{ "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" } } ]]>

The schema for the device is presented in JSON format in Section , while the openAPI representation is provided in Section .

Device Groups Device groups are created using the SCIM groups as defined in Section 4.2.

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. [[ DISCUSS: Is this okay with the working group? ]]

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:

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:

addressType 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 required, it is mutable, and return 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.

Multivalued Attributes versionSupport 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.

BLE Pairing Method Extensions The details on pairing methods and their associated attributes are in section 2.3 of . This memo defines extensions for four pairing methods that are nested insided the BLE extension schema. Each extension contains the common attributes . 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 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:

(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.

An example of a device object with BLE extension is as follows:

{ "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", "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 } }, "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" } } ]]>

The schema for the BLE extension is presented in JSON format in Section , while the openAPI representation is provided in Section .

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 . The attributes are as follows:

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:

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.

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.

An example of a device object with DPP extension is below:

{ "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" : { "versionSupport": ["802.11ax"], "bootstrappingMethod": ["QR"], "bootstrapKey": "MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=", "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" } } ]]>

The schema for the DPP extension is presented in JSON format in Section , while the openAPI representation is provided in Section .

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:

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:

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.

An example of a device object with Zigbee extension is shown below:

{ "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" } } ]]>

The schema for the Zigbee extension is presented in JSON format in Section , while the openAPI representation is provided in Section .

The Endpoint Applications Extension Schema Sometimes non-IP devices such as those using BLE or Zigbe require an application gateway interface to manage them. SCIM clients MUST NOT specify this to describe native IP-based devices. The device schema is a base schema upon which specific onboarding technology schemas are built. This extension provides two complex attributes deviceControl, and dataReceiver to represent two types of partner endpoint applications, device control, and data receiver applications, respectively. The extension is identified using the following schema URI: urn:ietf:params:scim:schemas:extension:endpointApps:2.0:Device

"deviceControl" Complex Attribute A complex attribute representing the application responsible for controlling the device. Device control applications provide access control for the device. It determines which other applications can access the data from the device. Depending on the use case, there can be more than one device control application. deviceControl has two sub-attributes: (i) a multvalued client-tokens attribute and (ii) a singular attribute called enterpriseEndpoint. client-tokens This attribute contains a list of tokens that the client will used to authenticate itself. Each token may be a string up to 500 characters in length. This attribute is a multivalued string which is required, case-sensitive, mutable, and returned by default. [[ We probably need something better here. ]] enterpriseEndpoint Device control apps use the URL of the enterprise endpoint to reach the network 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.

"dataReceiver" Complex Attribute A complex attribute representing the application(s) that receive data from the device. Depending on the use case, there can be more than one data receiver application. "dataReceiver" has two sub-attributes: (i) a multi-valued attribute called client-tokens, and (ii) a singular attribute called enterpriseEndpoint. client-tokens This attribute contains a list of tokens that the client will used to authenticate itself. Each token may be a string up to 500 characters in length. This attribute is a multivalued string which is required, case-sensitive, mutable, and returned by default. [[ We probably need something better here. ]] enterpriseEndpoint Data receiver apps use the URL of the enterprise endpoint to reach the network 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.

An example of a device object with endpointApps extension is below:

{ "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:endpointapps: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 } }, "urn:ietf:params:scim:schemas:extension:endpointapps:2.0:Device": { "deviceControl": { "client-tokens": [ "1293847109832471203984789383XXX" ], "enterpriseEndpoint": "https//enterprise.com/device_control_endpoint/" }, "dataReceiver": { "client-tokens":[ "dlku23234sdui232393" ], "enterpriseEndpoint": "https//enterprise.com/data_receiver_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" } } ]]>

The schema for the endpointApps extension along with BLE extension is presented in JSON format in Section , while the openAPI representation is provided in Section .

Schema JSON Representation

Device Resource Schema

[ { "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:pairingOOB:2.0:Device", "required": false } ], "meta": { "location": "https://example.com/v2/ResourceTypes/Device", "resourceType": "ResourceType" } } ] ]]>

Device Core Schema JSON

{ "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" }, { "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" } } ]]>

BLE Extension Schema JSON

[ { "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": "addressType", "type": "boolean", "description": "AddressType flag is taken from the BLE core specifications 5.3. If FALSE, the device is using public MAC address. If TRUE, device is using Random address which is resolved using IRK.", "multivalues": false, "required": true, "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.", "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" } }, { "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}$.", "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.", "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" } } ] ]]>

DPP Extension Schema JSON

{ "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" }, { "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, "caseExact": false, "mutability": "readWrite", "returned": "default", "uniqueness": "none" } ], "meta" : { "resourceType" : "Schema", "location" : "/v2/Schemas/urn:ietf:params: scim:schemas:extension:dpp:2.0:Device" } } ]]>

Zigbee Extension Schema JSON

{ "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" } } ]]>

EndpointApps Extension Schema JSON

{ "id": "urn:ietf:params:scim:schemas:extension:endpointApps:2.0: Device", "name": "endpointApps", "description": "Extension for partner endpoint applications that can onboard, control, and communicate with the device.", "attributes" : [ { "name": "deviceControl", "type": "complex", "description": "Device control application attributes.", "multivalues": false, "required": true, "caseExact": false, "mutability": "readWrite", "returned": "default", "uniqueness": "none", "subAttributes" : [ { "name": "client-tokens", "type": "string", "description": "This attribute contains a list of tokens that the client will used to authenticate itself. Each token may be a string up to 500 characters in length.", "multivalues": true, "required": true, "caseExact": true, "mutability": "readWrite", "returned": "default", "uniqueness": "none" }, { "name": "enterpriseEndpoint", "type": "reference", "description": "The URL of the enterprise endpoint which device control apps uses to reach enterprise network gateway. When enterprise receives the SCIM object from onboarding app, it adds this attribute to the object and sends back the object as response back to the onboarding app.", "multivalues": false, "required": true, "caseExact": true, "mutability": "readWrite", "returned": "default", "uniqueness": "none" } ] }, { "name": "dataReceiver", "type": "complex", "description": "Data receiver application attributes.", "multivalues": false, "required": true, "caseExact": false, "mutability": "readWrite", "returned": "default", "uniqueness": "none", "subAttributes" : [ { "name": "client-tokens", "type": "string", "description": "This attribute contains a list of tokens that the client will used to authenticate itself. Each token may be a string up to 500 characters in length.", "multivalues": true, "required": true, "caseExact": true, "mutability": "readWrite", "returned": "default", "uniqueness": "none" }, { "name": "enterpriseEndpoint", "type": "reference", "description": "The URL of the enterprise endpoint which device control apps uses to reach enterprise network gateway. When enterprise receives the SCIM object from onboarding app, it adds this attribute to the object and sends back the object as response back to the onboarding app.", "multivalues": false, "required": true, "caseExact": true, "mutability": "readWrite", "returned": "default", "uniqueness": "none" } ] } ], "meta" : { "resourceType" : "Schema", "location" : "/v2/Schemas/urn:ietf:params:scim:schemas: extension:endpointApps:2.0:Device" } } ]]>

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.

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. ]

IANA Considerations TBD

Changes from Earlier Versions Draft -01: Doh! We forgot the core device schemea! Draft -00: Initial revision

APPENDIX

Device Core Schema OpenAPI Representation OpenAPI representation of device core schema is as follows:

openapi: 3.0.3 info: title: Device Schema version: 1.0.0 description: API for device core schema 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 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: 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 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: false 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: false writeOnly: false additionalProperties: false paths: /devices: post: summary: Create a new device description: Creates a new device. operationId: createDevice requestBody: description: The device to create required: true content: application/json: schema: $ref: '#/components/schemas/Device' responses: '201': description: Created headers: Location: schema: type: string format: uri description: The URI of the newly created device. content: application/json: schema: $ref: '#/components/schemas/Device' /devices/{deviceId}: get: summary: Get a device by ID description: Returns a single device by its ID. operationId: getDeviceById parameters: - name: deviceId in: path description: The ID of the device to return. required: true schema: type: string responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/Device' ]]>

BLE Extension Schema OpenAPI Representation OpenAPI representation of BLE extension schema is as follows:

openapi: 3.0.1 info: version: 1.0.0 title: DPP Extension Schema description: API for DPP device extension schema components: schemas: 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 addressType: type: boolean description: AddressType flag is taken from the BLE core specifications 5.3. If FALSE, the device is using public MAC address. If TRUE, device is using Random address which is resolved using the IRK. 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 required: - versionSupport - 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: 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 paths: /devices: post: summary: Create a new device operationId: createDevice requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/BleDeviceExtension' anyof: - $ref: '#/components/schemas/NullPairing' - $ref: '#/components/schemas/PairingJustWorks' - $ref: '#/components/schemas/PairingPassKey' - $ref: '#/components/schemas/PairingOOB' responses: '201': description: Created content: application/json: schema: $ref: '#/components/schemas/BleDeviceExtension' anyof: - $ref: '#/components/schemas/NullPairing' - $ref: '#/components/schemas/PairingJustWorks' - $ref: '#/components/schemas/PairingPassKey' - $ref: '#/components/schemas/PairingOOB' /devices/{deviceId}: get: summary: Get a Dpp device by ID description: Returns a single Dpp device by its ID. operationId: getDeviceById parameters: - name: id in: path description: The ID of the device to return. required: true schema: type: string responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/BleDeviceExtension' anyof: - $ref: '#/components/schemas/NullPairing' - $ref: '#/components/schemas/PairingJustWorks' - $ref: '#/components/schemas/PairingPassKey' - $ref: '#/components/schemas/PairingOOB' ]]>

DPP Extension Schema OpenAPI Representation OpenAPI representation of DPP extension schema is as follows:

openapi: 3.0.1 info: version: 1.0.0 title: DPP Extension Schema description: API for DPP device extension schema components: schemas: DppDeviceExtension: type: object properties: dppVersion: 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 readOnly: false writeOnly: false required: - dppVersion - bootstrapKey additionalProperties: false paths: /devices: post: summary: Create a new device operationId: createDevice requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/DppDeviceExtension' responses: '201': description: Created content: application/json: schema: $ref: '#/components/schemas/DppDeviceExtension' /devices/{deviceId}: get: summary: Get a Dpp device by ID description: Returns a single Dpp device by its ID. operationId: getDeviceById parameters: - name: id in: path description: The ID of the device to return. required: true schema: type: string responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/DppDeviceExtension' ]]>

Zigbee Extension Schema OpenAPI Representation OpenAPI representation of zigbee extension schema is as follows:

openapi: 3.0.1 info: title: Zigbee Device Extension description: API for Zigbee device extensions schema version: 1.0.0 components: schemas: 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. paths: /devices: post: summary: Create a new device operationId: createDevice requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/ZigbeeDeviceExtension' responses: '201': description: Created content: application/json: schema: $ref: '#/components/schemas/ZigbeeDeviceExtension' /devices/{deviceId}: get: summary: Get a Zigbee device by ID description: Returns a single Zigbee device by its ID. operationId: getDeviceById parameters: - name: id in: path description: The ID of the device to return. required: true schema: type: string responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/ZigbeeDeviceExtension' ]]>

EndpointApps Extension Schema OpenAPI Representation OpenAPI representation of endpoint Apps schema is as follows:

openapi: 3.0.1 info: version: 1.0.0 title: Endpoint Apps Extension description: Extension for partner endpoint applications that can onboard, control, and communicate with the device. components: schemas: endpointApps: type: array items: allOf: - $ref: '#/components/schemas/deviceControl' - $ref: '#/components/schemas/dataReceiver' deviceControl: type: array items: $ref: '#/components/schemas/deviceControlAttributes' deviceControlAttributes: properties: client-tokens: type: string format: uri description: This attribute contains a list of tokens that the client will used to authenticate itself. Each token may be a string up to 500 octets in length. nullable: false readOnly: false writeOnly: false enterpriseEndpoint: type: string format: uri description: The URL of the enterprise endpoint which device control apps uses to reach enterprise network gateway. When enterprise receives the SCIM object from onboarding app, it adds this attribute to the object and sends back the object as response back to the onboarding app. nullable: false readOnly: false writeOnly: false required: - client-tokens - enterpriseEndpoint dataReceiver: type: array items: $ref: '#/components/schemas/dataReceiverAttributes' dataReceiverAttributes: properties: client-tokens: type: string format: uri description: This attribute contains a list of tokens that the client will used to authenticate itself. Each token may be a string up to 500 octets in length. nullable: false readOnly: false writeOnly: false enterpriseEndpoint: type: string format: uri description: The URL of the enterprise endpoint which data receiver apps uses to reach enterprise network gateway. When enterprise receives the SCIM object from onboarding app, it adds this attribute to the object and sends back the object as response back to the onboarding app. nullable: false readOnly: false writeOnly: false paths: /endpointApps: get: summary: Get endpoint apps description: Returns all endpoint apps operationId: getAllEndpointApps responses: '200': description: OK content: application/json: schema: type: array items: $ref: '#/components/schemas/endpointApps' ]]>

Bluetooth SIG Wi-Fi Alliance The System for Cross-domain Identity Management (SCIM) specifications are designed to make identity management in cloud-based applications and services easier. The specification suite builds upon experience with existing schemas and deployments, placing specific emphasis on simplicity of development and integration, while applying existing authentication, authorization, and privacy models. Its intent is to reduce the cost and complexity of user management operations by providing a common user schema and extension model as well as binding documents to provide patterns for exchanging this schema using HTTP.This document provides a platform-neutral schema and extension model for representing users and groups and other resource types in JSON format. This schema is intended for exchange and use with cloud service providers. The System for Cross-domain Identity Management (SCIM) specification is an HTTP-based protocol that makes managing identities in multi-domain scenarios easier to support via a standardized service. Examples include, but are not limited to, enterprise-to-cloud service providers and inter-cloud scenarios. The specification suite seeks to build upon experience with existing schemas and deployments, placing specific emphasis on simplicity of development and integration, while applying existing authentication, authorization, and privacy models. SCIM's intent is to reduce the cost and complexity of user management operations by providing a common user schema, an extension model, and a service protocol defined by this document. Postman JSON Schema defines the media type "application/schema+json", a JSON- based format for describing the structure of JSON data. JSON Schema asserts what a JSON document must look like, ways to extract information from it, and how to interact with it. The "application/ schema-instance+json" media type provides additional feature-rich integration with "application/schema+json" beyond what can be offered for "application/json" documents. In many standards track documents several words are used to signify the requirements in the specification. These words are often capitalized. This document defines these words as they should be interpreted in IETF documents. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements. RFC 2119 specifies common key words that may be used in protocol specifications. This document aims to reduce the ambiguity by clarifying that only UPPERCASE usage of the key words have the defined special meanings. This memo specifies a component-based architecture for Manufacturer Usage Descriptions (MUDs). The goal of MUD is to provide a means for end devices to signal to the network what sort of access and network functionality they require to properly function. The initial focus is on access control. Later work can delve into other aspects.This memo specifies two YANG modules, IPv4 and IPv6 DHCP options, a Link Layer Discovery Protocol (LLDP) TLV, a URL, an X.509 certificate extension, and a means to sign and verify the descriptions. This document specifies automated bootstrapping of an Autonomic Control Plane. To do this, a Secure Key Infrastructure is bootstrapped. This is done using manufacturer-installed X.509 certificates, in combination with a manufacturer's authorizing service, both online and offline. We call this process the Bootstrapping Remote Secure Key Infrastructure (BRSKI) protocol. Bootstrapping a new device can occur when using a routable address and a cloud service, only link-local connectivity, or limited/disconnected networks. Support for deployment models with less stringent security requirements is included. Bootstrapping is complete when the cryptographic identity of the new key infrastructure is successfully deployed to the device. The established secure connection can be used to deploy a locally issued certificate to the device as well.