This document provides an overview of XMPP and its use for IoT applications. XMPP is an open standard for messaging and presence that allows for global scalability, extensibility, robustness, and security. It supports asynchronous messages, request/response interactions, and publish/subscribe communication patterns. For IoT, XMPP defines interfaces for sensor data, provisioning, control, device discovery, and secure account creation. It provides a standardized way to connect IoT devices and applications.

1. XMPP & IoT
An overview

2. What is XMPP?
eXtensible Messaging and
Presence Protocol
 Standardized by the IETF
 RFC 6120
 RFC 6121
 RFC 6122
 Originally developed in the late 1990-ies.
 “Jabber”
 Based on XML

3. Basic features
Some basic features of XMPP include:
 Global scalability (federation)
 Extensibility (namespaces)
 Robustness (close to 20 years of operation)
 Open (public & free)
 Standardized
 Secure
 Interoperable

4. Communication
 Brokers
 Accounts
 Rosters
 Routing
 Federation
 Topology insensitive
 Server-less
 Peer-to-peer
 Authentication
 SASL
 Encryption
 TLS
 E2E

5. Communication Patterns
Intrinsic patterns:
 Asynchronous messages (message)
 Request/Response (iq)
 Publish/Subscribe (presence)
Extended
 Publish/Subscribe (extended by XEP-0060)
 Multicasting (extended by XEP-0045)
 etc.

6. Security
Standard layers of security:
 Authentication (SASL)
 Encryption (TLS)
 Authorization (presence subscription)
 Blocking
 Spam reporting
 Provisioning
 End-to-end encryption

7. IoT
Interfaces for IoT
 Sensor Data (former XEP-0323)
 Provisioning (former XEP-0324)
 Control (former XEP-0325)
 Concentrator/Bridge (former XEP-0326)
 Thing Registries & Discovery (XEP-0347)
 Secure Account Creation (XEP-0348)
https://gitlab.com/IEEE-SA/XMPPI/IoT
https://prezi.com/esosntqhewhs/iot-xmpp/
https://www.slideshare.net/peterwaher/iot-harmonization-using-xmpp