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Open Source Embedded Software Development Blog

Trusted Software Development Using OP-TEE

This blog aims to introduce the concept of Trusted Execution Environment (TEE) and how end users can leverage open source software to safely deploy applications that require handling confidential information.

What is TEE? What are the benefits of having a TEE?

TEE provides an isolated environment to ensure code/data integrity and confidentiality. Typical embedded systems running Linux or Android are exposed to a large number of security vulnerabilities in both the kernel and user space packages. Vulnerabilities can allow an attacker to gain access to sensitive information and/or insert malware. TEE adds an additional layer of security where code/data running on the TEE can not be accessed/tampered from the normal world OS (eg: Linux/Android).
 

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Webinar: Developing for Industrial IoT with Linux OS on DragonBoard™ 410c

The ever-increasing demand for connected embedded systems is driving innovation in Industrial IoT (IIoT), including designs with connected sensors, robust CPU processing, low power, and security designed and built into products from the earliest stages.

Join us for a Timesys University 4-part webinar series — Developing for Industrial IoT with Linux OS on DragonBoard™ 410c — to explore the process of building an embedded Linux based device using the Qualcomm® Snapdragon™ 410E powered DragonBoard 410c development board from Arrow Electronics. With topics that cover build systems, deployment strategy, designing-in and managing security, device appearance and ease of user interaction, you’ll gain insight into various aspects of technology and design decisions developers face when choosing to build embedded Linux based products for this increasingly demanding and expanding connected world.
 

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Secure Boot and Encrypted Data Storage

Secure boot ensures only authenticated software runs on the device and is achieved by verifying digital signatures of the software prior to executing that code. To achieve secure boot, processor/SoC support is required. In our experience, some of the more secure boot friendly processors with readily available documentation are NXP i.MX, Xilinx Zynq, and Atmel SAMA5 series. Some TI Sitara processors support secure boot, but might involve TI factory programming of signing keys and custom part numbers.
 

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Webinar: Building Embedded Software Efficiently with an IDE

Discover IDE-assisted software development best practices that can help you minimize the number of challenges you encounter and reduce development delays when building your value-add embedded application.

This four-session webinar series will utilize open source Linux and Timesys’ TimeStorm IDE for embedded application- and system-level development. You’ll see how TimeStorm provides a consistent development experience while providing application developers with the flexibility they need to be more efficient and productive.
 

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Securing Embedded Linux Devices

Embedded devices have unique security needs ranging from IP protection, anti-cloning / anti-counterfeit capability, device software integrity, user data protection, securing network communication, device authentication and ability to run only trusted applications. A wide range of open source technologies are available that can help implement the aforementioned security requirements. However, it is not always apparent which mechanisms are best suited for a given use case, resulting in a steep learning curve. This blog series aims at giving a high-level overview of the different methods to secure your product and help accelerate your trusted software deployment.
 

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Software / Firmware Update Design Considerations

The Internet of Things (IoT) has quickly led to the deployment of ubiquitous, unattended devices throughout our homes, offices, factories and public spaces. In this continuously expanding connected world of devices and IoT, the need to update/upgrade your product’s software/firmware is a certainty. There is no single software update approach that fits all, but there are key questions you should consider when designing your approach. They are: Why, When, What and How.
 

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