Securing communication channels is critical for embedded systems, especially with the deprecation of older protocols like TLS 1.0. This guide covers the essential steps to add support for TLS 1.1 and TLS 1.2 in Windows Embedded Compact 7, tailored for system integrators, developers, and IT professionals seeking to enhance security and compliance.
1. Understanding the Need for TLS 1.1 and TLS 1.2 Support
Windows Embedded Compact 7 initially shipped with support limited to TLS 1.0, which is now considered insecure due to vulnerabilities like BEAST and POODLE. Upgrading to TLS 1.1 and TLS 1.2 ensures stronger encryption, improved security, and compliance with modern security standards such as PCI DSS and HIPAA. Supporting these protocols also future-proofs your embedded devices against evolving threats and industry requirements.
2. Obtaining the Necessary Updates and SDKs
Microsoft released an update package called the Security Update for Windows Embedded Compact 7 (KB2639308), which enables TLS 1.1 and TLS 1.2. To apply this, download the update from the Microsoft Update Catalog and ensure your SDK is updated to at least version 7.0.6002. This update includes the necessary DLLs and configuration files to support newer TLS versions.
3. Installing the TLS Support Update
Installation involves integrating the update into your custom image. Use the Platform Builder to add the update package, making sure to select the correct architecture (ARM, x86, MIPS). After integration, rebuild your image and deploy it to your devices. This process replaces or updates the SSL libraries to enable TLS 1.1 and TLS 1.2 support.
4. Configuring the Registry for Protocol Support
Once the update is installed, you need to enable TLS 1.1 and TLS 1.2 explicitly via registry settings. Create or modify the registry keys at HKEY_LOCAL_MACHINE\Security\Protocols\
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