Kigen has achieved GSMA eUICC Security Assurance (eSA) certification for an automotive eSIM supporting the latest version of the GSMA’s SGP.32 specification, as vehicle manufacturers look to extend the security and connectivity of software-defined vehicles over longer service lives.
The Cambridge-based company said its Automotive eSIM is the first eSA-certified eSIM to support SGP.32 v1.3, published by the GSMA in May 2026. The specification is designed for IoT eSIM deployments and includes features such as direct and indirect profile downloads, digital activation codes and emergency profile handling.
For automotive OEMs and Tier-1 suppliers, the changes are intended to simplify the management of cellular connectivity across vehicles that may remain in service for a decade or more.
Kigen’s eSIM operating system is combined with Infineon’s TEGRION SLI22 automotive security controller. The companies say the platform provides a common security architecture that can be used across different connected-vehicle applications, including telematics and infotainment.
The approach is also intended to reduce fragmentation between automotive and other IoT deployments. Kigen’s Automotive eSIM is part of a three-product portfolio based on the TEGRION SLx22 family, alongside consumer and industrial IoT versions. The products share the same operating system, development tools and management stack.
For vehicle manufacturers, a common platform could allow security infrastructure and development processes to be reused across different types of connected vehicles and fleets.
The extended service life of connected vehicles also creates a challenge for security architectures. Hardware installed at manufacture may need to remain secure and updateable long after a vehicle has left the factory.
Kigen said its platform can support hybrid key encapsulation combining conventional and post-quantum cryptographic algorithms. Post-quantum cryptography (PQC) is not currently part of the GSMA eSIM specifications, but the company said OEMs can use its C-SDK development suite and test eSIM samples to experiment with PQC-resistant communications.
The company is positioning this as a way for manufacturers to prepare for future cryptographic requirements without having to replace embedded hardware across an existing fleet.
The eSIMs also form part of Kigen’s wider security infrastructure, which includes GSMA SAS-UP certification for manufacturing and SAS-SM certification for subscription management, as well as its hosted eIM remote-management platform.
Kigen said its automotive eSIMs currently interoperate with more than 20 network providers that support digital activation, while more than 60 IoT modules are certified as “Secure with Kigen”.
The company plans to take its certified IoT eSIMs and eIM solution through GSMA interoperability testing in October.
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