Sam Kumar
65a8d520b1
This commit adds support for TLS in the TCP CLI tool, along with a test of TLS functionality. The main purpose of this is to provide an example of how to use mbedTLS with TCPlp to run TLS. I felt it is important to have an example because I expect that many applications that use TCP, particularly those in which a Thread device exchanges data with a device outside the Thread mesh, will need to run TLS over TCP for security reasons. A secondary benefit is to add TCP functionality to the TCP CLI tool. Additionally, by having the example code be part of a "real" application (the CLI tool), there is less risk of the code going stale as OpenThread evolves. I added an "expects" test for the TLS functionality in the CLI tool. I also ran the code on two Nordic NRF52840-DK boards to make sure it works. The performance impact of TLS appears to be small. When using TCP without TLS, I am able to achieve ~80 kb/s goodput between two NRF52840-DK boards. With TLS in the same setup, I am able to achieve ~70-75 kb/s goodput.
What is OpenThread?
OpenThread released by Google is... 
...an open-source implementation of the Thread networking protocol. Google Nest has released OpenThread to make the technology used in Nest products more broadly available to developers to accelerate the development of products for the connected home.
...OS and platform agnostic, with a narrow platform abstraction layer and a small memory footprint, making it highly portable. It supports both system-on-chip (SoC) and network co-processor (NCP) designs.
...a Thread Certified Component, implementing all features defined in the Thread 1.3.0 specification, including all Thread networking layers (IPv6, 6LoWPAN, IEEE 802.15.4 with MAC security, Mesh Link Establishment, Mesh Routing) and device roles, as well as Border Router support.
More information about Thread can be found at threadgroup.org. Thread is a registered trademark of the Thread Group, Inc.
Who supports OpenThread?
Getting started
All end-user documentation and guides are located at openthread.io. If you're looking to do things like...
- Learn more about OpenThread features and enhancements
- Use OpenThread in your products
- Learn how to build and configure a Thread network
- Port OpenThread to a new platform
- Build an application on top of OpenThread
- Certify a product using OpenThread
...then openthread.io is the place for you.
Note: For users in China, end-user documentation is available at openthread.google.cn.
If you're interested in contributing to OpenThread, read on.
Contributing
We would love for you to contribute to OpenThread and help make it even better than it is today! See our Contributing Guidelines for more information.
Contributors are required to abide by our Code of Conduct and Coding Conventions and Style Guide.
License
OpenThread is released under the BSD 3-Clause license. See the LICENSE file for more information.
Please only use the OpenThread name and marks when accurately referencing this software distribution. Do not use the marks in a way that suggests you are endorsed by or otherwise affiliated with Nest, Google, or The Thread Group.
Need help?
OpenThread support is available on GitHub:
- Bugs and feature requests — submit to the Issue Tracker
- Community Discussion - ask questions, share ideas, and engage with other community members