TI CC274x Debug Authentication
Debug Authentication for TI CC274x Devices
The TI CC274x device family implements a secure Debug Authentication mechanism designed to prevent unauthorized access to the device’s debug interface. This mechanism is part of Texas Instruments’ security architecture and ensures that only authenticated tools or users can gain debug privileges.
Overview
Debug access on CC274x devices is protected by a challenge–response–based authentication flow. When debug authentication is initiated, the device generates a challenge vector that must be signed externally. The signed response is then submitted back to the device to unlock the debug interface.
SEGGER’s tools support this authentication workflow through the Device Provisioner infrastructure and dedicated J-Link functionality.
Debug Authentication via SEGGER Device Provisioner
SEGGER provides support for CC274x Debug Authentication through the SEGGER Device Provisioner. This includes:
- Starting the Debug Authentication process
- Retrieving the challenge vector
- Submitting the signed response
- Handling all communication required by the CC274x authentication protocol
However, the Debug Authentication functionality for the TI CC274x is not included by default.
Availability
The CC274x Debug Authentication features are available only upon request. Customers requiring access must contact SEGGER to have this feature enabled.
The corresponding script file is provided for a fee. Pricing is available upon request.
For more information, please contact us via the following link: https://www.segger.com/about-us/contact-us/
Usage with J-Link
J-Link provides command-line and script-based support for CC274x Debug Authentication, including:
- Debug authentication for all three security levels: SECURE, NON-SECURE, and NON-INVASIVE
- Support for all encryption mechanisms, as signing must be performed by an external tool (for example: openssl)
- No private keys need to be embedded into SEGGER tools for the process
- Full automation support, allowing integration into development and production workflows
More detailed documentation and examples will be provided upon request.