Asynchronous Web Programming with HTML5 WebSockets and Java

The growth of embedded systems connecting to the Internet or "Internet of Things" (IoT) increases year by year. Thus, the IoT ecosystems become new targets of the attackers. This presentation will talk about the basic principle of information security, why we need to secure IoT ecosystems, and also the vulnerabilities and solutions from OWASP.

NETOPEER is a set of open source NETCONF tools built on the libnetconf library. It includes a NETCONF server that runs on managed devices to allow configuration via NETCONF RPC operations and retrieve state data. It also includes a NETCONF agent that accepts incoming NETCONF connections and passes operations to the server, a CLI client to interact with the server, and a manager for YANG and transaction modules on the server. The presentation provides an overview of NETOPEER tools for managing devices using the NETCONF protocol.

Enhance your network security by introducing Multi Factor Authentication (MFA) into new or existing use cases. New threats, risks, and vulnerabilities as well as evolving business requirements underscore to the need for a strong authentication approach based on simple service delivery, choice, and future-forward scalability. Learn how to create time, location and event driven policies to trigger new MFA workflows. Managed or unmanaged devices can be leveraged using secure MFA solutions from a variety of 3rd party providers and when combined with SSO, provides a much simpler and secure user experience versus traditional two-factor authentication methods..

The document discusses authentication protocols and digital signatures. It describes mutual authentication protocols that allow two parties to verify each other's identities and exchange session keys. It also discusses one-way authentication protocols. The document focuses on explaining the Digital Signature Standard (DSS) and the Digital Signature Algorithm (DSA). It provides details on how DSA uses public/private key pairs to generate and verify digital signatures for authenticating messages and senders.

The document summarizes the process of compiling Java code from writing it in an IDE to running the bytecode on a JVM. It discusses how code is compiled incrementally in an IDE, generated into bytecode, dynamically loaded and interpreted with just-in-time compilation into native code for performance. It also overview's IBM's involvement in Java development and optimization.

The document discusses web authentication and authorization. It introduces various authentication threats and technologies like usernames/passwords, one-time passwords, and Kerberos. It also discusses authentication attacks like brute force attacks and weak password recovery validation. The document then covers authentication techniques and infrastructures such as pluggable authentication modules and secure sockets layer. Finally, it discusses web authentication standards including single sign-on, OAuth, and OpenID.

This document discusses authentication and authorization frameworks like OAuth and OpenID Connect. It provides an overview of key concepts like authentication, authorization, roles in OAuth like resource owner, client, authorization server and resource server. It explains the authorization code grant flow in OAuth and how OpenID Connect builds upon OAuth to provide identity features. It also compares OpenID Connect to SAML and discusses Microsoft and TechCello implementations of these specifications.

The document discusses security in LoRaWAN networks. It describes how LoRaWAN uses cryptographic techniques like AES encryption with keys, and message authentication codes to provide security features like mutual authentication, integrity protection, and encryption. It explains the join procedure where devices are provisioned with session keys to communicate securely. Improvements in LoRaWAN 1.1 like additional replay protection and separation of security realms are also summarized. The document recommends best practices for provisioning devices securely and maintaining security across the entire IoT system.

JWTs provide a more secure and scalable alternative to cookie-based authentication. JWTs contain encrypted user information that is verified on the client-side and transmitted with each request, avoiding the need for database lookups on the server-side. In contrast, cookies require server-side sessions and database lookups to validate the user on each request. JWTs also enable cross-domain requests and work across mobile and web platforms, while cookies have limitations in these areas. Developers are advised to use a third-party service to handle JWT generation and verification rather than implementing it themselves.

Stack-based and heap-based buffer overflow attacks, based on Counter Hack Reloaded (by Skoudis & Liston), & other sources.

The document discusses the logical design of IoT. It describes the key logical design elements including IoT functional blocks, communication models, and communication APIs. The logical design provides an abstract representation of IoT entities and processes without implementation details. The functional blocks provide capabilities for identification, sensing, actuation, communication and management. Common communication models are request-response, publish-subscribe, push-pull and exclusive pair. REST and WebSocket are examples of IoT communication APIs.

This document provides an overview of AWS IoT services including key features and use cases. It discusses the AWS IoT message broker which supports standard protocols like MQTT to securely connect millions of devices. It also describes the rules engine which can transform messages and route them to other AWS services, thing shadows for persistent device states, and the device registry for identity management. Example use cases are given across various industries like healthcare, smart homes, manufacturing, and more.

The internet is the internationally connected network of computer networks with addresses that are administrated by IANA

This document discusses message authentication codes (MACs). It explains that MACs use a shared symmetric key to authenticate messages, ensuring integrity and validating the sender. The document outlines the MAC generation and verification process, and notes that MACs provide authentication but not encryption. It then describes HMAC specifically, which applies a cryptographic hash function to the message and key to generate the MAC. The key steps of the HMAC process are detailed.

Key management: Introduction, How public key distribution done, Diffie Hellman Key Exchage Algorithm,Digital Certificate. Key Management using Digital certificate is done etc. wireshark screenshot showing digital cetificate.

AWS IoT is a managed cloud platform that lets connected devices easily and securely interact with cloud applications and other devices.

This document discusses sockets programming in Java. It covers server sockets, which listen for incoming client connections, and client sockets, which connect to servers. It describes how to create server and client sockets in Java using the ServerSocket and Socket classes. Examples are provided of simple Java programs to implement a TCP/IP server and client using sockets.

This document discusses real-time web applications and the technologies needed to enable them. It describes how HTTP is half-duplex and led to hacks like long polling to simulate real-time behavior. The WebSocket protocol provides full-duplex communications by upgrading the HTTP handshake. This allows real-time messaging over a single connection. The document also covers asynchronous programming, event-driven architectures, and frameworks like Spring that support WebSockets and asynchronous APIs.

The document discusses various techniques for implementing real-time web applications, including polling, Comet, and WebSockets. It explains that polling involves the browser periodically requesting updates from the server. Comet enables long-polling to allow the server to push responses to the browser without requiring it to send frequent requests. WebSockets provide true two-way communication by upgrading the initial HTTP connection to a WebSocket protocol.

Session presented at the 6th IndicThreads.com Conference on Java held in Pune, India on 2-3 Dec. 2011. http://Java.IndicThreads.com

The document discusses the limitations of HTTP for building interactive real-time web applications and introduces WebSockets as an alternative. It explains that WebSockets allow for asynchronous, bidirectional communication over a single TCP connection, unlike HTTP which is stateless and half-duplex. The document also outlines the Java API for WebSockets (JSR 356) and provides examples of how WebSockets can be used for applications like chat, games, and social networking.

This document introduces classes for asynchronous I/O in Servlet 3.0 without exposing low-level I/O details. New classes include ServletFuture, ServletAsyncHandler, ServletRequestChannel, and ServletResponseChannel. ServletRequestChannel allows asynchronous and synchronous read operations from the request body, while ServletResponseChannel allows write operations to the response. Examples demonstrate asynchronous and synchronous reads and writes, with the request automatically suspended for asynchronous operations.

This presentation explains the basics of WebSockets and how a Developer can leverage its features to enhance a Mobile User Experience and offer real timing applications

Peter Lubbers from Kaazing gave a presentation on HTML5 WebSocket and communication technologies to the San Francisco Java User Group. He discussed the limitations of traditional HTTP for real-time applications and how technologies like polling and long polling add complexity. He then introduced HTML5 WebSocket as a new standard that enables true full-duplex communication with low latency. Finally, he briefly covered other HTML5 communication features like Server-Sent Events, XMLHttpRequest Level 2, and Cross Document Messaging.

With the growing challenges we face with shortage of resources there is a constant need to improve scalability and performance. Fortunately Java EE 7 and Java SE 7 has provided a rich set of APIs which can be used to avoid the conventional request-response paradigm. The session will span across JSRs cover how JAX-RS, Servlets, WebSockets, EJB provide support to submit asynchronous requests and cover topics like callbacks, timeouts, client side asynchrony, API like non blocking IO and lots of good stuff from Java EE 7 and Java SE 7 . Prerequisite: An open mind and be ready to “Think async”

This document contains questions and answers related to Linux/Unix shells. Some key points: - It asks about common shell commands like date, who, pwd, rm, grep, ps, kill, mail, etc. and how to use them. - It covers shell scripting concepts like variables ($VAR), conditionals (if/else), loops (for, while), I/O redirection, functions, and more. - Questions address shells basics like finding the shell, users, processes, directories and files as well as more advanced topics like process IDs, background processes, command line arguments, and Boolean/conditional operators.

The document describes four shell scripts - twice, home, suffix, and rnfile. It provides preliminary results for twice, home, and suffix. Twice doubles an integer argument but produces errors if no argument is given or the argument is non-integer. Home prints a user's home directory given their name as an argument, but produces an error if no argument is provided. Suffix renames a file by adding a suffix argument to the filename.

This is part 5 of the training "introduction to linux for bioinformatics". Here we introduce more advanced use on the command line (piping, redirecting) and provide you a selection of GNU text mining and analysis tools that assist you tremendously in handling your bioinformatics data. Interested in following this training session? Contact me at http://www.jakonix.be/contact.html

Speaker: Atul Kshir­sagar, GE Soft­ware To learn more about Pivotal Cloud Foundry, visit http://www.pivotal.io/platform-as-a-service/pivotal-cloud-foundry.

Overview of WebSockets (protocol and Java EE7 support) by Erin Schnabel (Liberty Profile Development Lead, IBM | @ebullientworks)

This document provides an overview of Linux Bash shell scripting. It covers topics such as writing basic scripts, variables, conditionals, loops, functions, arguments, and input/output redirection. Examples are given for many common scripting tasks like arithmetic operations, string manipulation, file operations, and comparing values. The document is intended to teach the basics of scripting in the Linux Bash shell.

Slide deck from my talk on Node.js. More information is available here: http://colinmackay.scot/2014/11/29/dunddd-2014-introduction-to-node-jsfrom-hello-world-to-deploying-on-azure/

This document provides an introduction and overview of shell scripting in Linux. It discusses what a shell script is, when they should and should not be used, examples of common shell scripts, and an introduction to programming features commonly used in shell scripts such as variables, conditionals, loops, command line arguments, and more. Key points covered include that shell scripts allow automating command execution, are useful for repetitive tasks, and come with programming features to customize behavior.