Firmware Signing

Introduction to Firmware- and code signing

In today’s interconnected world, where millions of connected devices fall victim to compromises and attacks each year, the need for robust security measures has never been greater. At Cryptera, we understand the critical importance of safeguarding your devices against these threats. That’s why we offer a cutting-edge Firmware Signing solution, meticulously designed to mitigate the risk of device compromise by fortifying your critical signing keys.

Our solution is your shield, protecting your brand reputation and ensuring the authenticity and integrity of your code. With Cryptera’s Firmware Signing, you can be confident that your firmware remains authentic and untampered, providing you with peace of mind in an ever-evolving digital landscape. By entrusting your security to us, you can also expedite your time-to-market with our efficient software-as-a-service solution.

What sets Cryptera apart is our unparalleled expertise, with over 30 years of experience in developing secure connected devices and mastering cryptographic key management. Our roots are deeply entrenched in the highly regulated payment industry, where security is paramount. Our Firmware Signing solution seamlessly integrates with your existing applications for user authorization and software building. This means you can sign firmware without the burden of navigating the complexities of key security and backup, allowing you to focus on what matters most – delivering secure and reliable devices to your customers.

Secure firmware signing is a crucial practice in the field of cybersecurity and embedded systems, designed to ensure the integrity, authenticity, and trustworthiness of firmware and software running on various devices, such as microcontrollers, embedded systems, IoT devices, and more. It involves the use of cryptographic techniques to digitally sign firmware or software images before they are loaded onto a device’s hardware. This process helps protect against unauthorized modifications, malware injection, and other security threats, ultimately enhancing the overall security posture of the system.

Advantages and Benefits of Secure Firmware Signing:
  • Integrity Assurance
    Secure firmware signing guarantees that the firmware or software being loaded onto a device has not been tampered with or altered in any way since it was signed. This ensures that the device operates as intended, without hidden vulnerabilities or malicious modifications.

  • Authentication
    By verifying the digital signature associated with the firmware, a device can confirm that the firmware originates from a trusted source. This prevents the installation of unauthorized or counterfeit firmware, protecting against supply chain attacks and ensuring that only trusted software runs on the device.

  • Protection Against Malware
    Secure firmware signing helps prevent the installation of malicious or compromised firmware. Even if an attacker gains access to the device, they cannot load unauthorized code onto it without the appropriate digital signature, reducing the risk of malware infections.

  • Enhanced Device Security
    Devices with secure firmware signing are better equipped to resist various forms of attacks, such as rootkits, bootloader exploits, and remote code execution. This makes them more resilient to both physical and remote attacks.

  • Compliance and Regulatory Requirements
    Many industries and sectors have regulatory requirements mandating secure firmware signing as part of their cybersecurity measures. Adhering to these requirements not only ensures compliance but also demonstrates a commitment to security to customers and stakeholders.

  • Trustworthiness
    Secure firmware signing builds trust with end-users and customers. Knowing that a device’s firmware is protected from unauthorized changes instills confidence in the product, increasing its appeal in the market.

  • Remote Updates
    Secure firmware signing is essential for secure over-the-air (OTA) updates. It enables devices to safely receive and install updates from the manufacturer or trusted sources without exposing them to potential security risks.

  • Vendor and Developer Accountability
    When firmware is signed with a digital signature, it holds the vendor or developer accountable for the software’s quality and security. This encourages responsible software development practices and prompt response to security vulnerabilities.

  • Long-term Security
    Secure firmware signing helps maintain the security of devices throughout their lifecycle. Manufacturers can release updated firmware with improved security features and patches, ensuring that devices remain secure even as new vulnerabilities are discovered.

In conclusion, secure firmware signing is a critical component of modern cybersecurity practices, providing a layer of protection that is essential for ensuring the integrity, authenticity, and security of embedded systems and IoT devices. It is a fundamental step in safeguarding against various cyber threats and maintaining the trust of customers and stakeholders.

Introducing Cryptera Firmware Signing (SaaS)

Your Ultimate Solution for Secure Code Signing and Key Management for Embedded Device

Cryptera offer a comprehensive Software-as-a-Service (SaaS) solution tailored to meet all your code signing and key storage needs for embedded devices. Our platform simplifies the entire process, ensuring the utmost security and efficiency for your projects.

Key Features
  • End-to-End Setup
    Seamlessly establish signing and key storage procedures for your connected devices, covering all aspects of your code signing workflow.
  • Streamlined Integration
    Effortlessly integrate our service into your build pipeline and seamlessly connect with your preferred code signing tools, including vendor-specific options for bootloader, firmware, OS, and OT signing.

  • User-Friendly Experience
    Utilize our intuitive signing client or APIs to access code signing and key management as a service, reducing the complexity of traditional signing methods.

  • Complete Automation
    Eliminate the need to store sensitive keys on USB drives or laptops while avoiding cumbersome processes for key storage. Our automated system ensures a hassle-free experience.

  • Expert Guidance
    Rely on our team of experts with extensive knowledge in embedded devices and low-level component signing to help you devise the best code signing setup tailored to your unique requirements.

  • Robust Security
    Implement strong authentication and access control measures, granting fine-grained control over who can access your keys and for what purposes.

  • Comprehensive Compliance
    Ensure compliance with IEC 62443-4-1 standards for private key storage and code signing, with our platform supporting you every step of the way.


With Cryptera Firmware Signing (SaaS), you can confidently manage your code signing and key storage needs, backed by our cutting-edge technology and expert support.

Download our Firmware Signing Product Sheet

FirmwareGuard - Key management




Schedule Your Firmware Signing as a Service Demo

Experience the power of Firmware Signing as a Service firsthand, contact us now to book a personalized demo tailored to your specific needs. Our experts will provide you with comprehensive insights, showcasing exactly how our solution integrates into your setup.