Saha-Edge can support real-time offline firmware rollback and integrity verification for individual AC chargers using OCPP 2.0.1 without cloud connectivity, while maintaining compliance with IEC 62443 and ISO/IEC 15118-2 standards.
How Saha-Edge enables offline firmware management
Saha-Edge leverages local edge computing capabilities to store and validate firmware images directly on the charger. It uses cryptographic checksums and digital signatures to verify integrity before and after updates. The system maintains a secure boot process that ensures only authenticated firmware can be installed, even when disconnected from the cloud.
This approach allows for immediate rollback capabilities if an update fails or introduces instability. The charger can automatically revert to a previously validated firmware version stored locally, ensuring continuous operation and minimizing downtime.
OCPP 2.0.1’s built-in support for local firmware management, combined with Saha-Edge’s edge-native architecture, enables this functionality without requiring constant internet access.
Security and compliance in offline operations
IEC 62443 compliance is maintained through hardware-based security modules integrated into Saha-Edge. These modules handle key storage, cryptographic operations, and secure communication protocols, ensuring that all firmware interactions meet the standard’s security requirements.
ISO/IEC 15118-2 compliance is upheld by maintaining secure communication channels between the charger and EV, even when offline. The system ensures that authentication and authorization processes remain robust, protecting against unauthorized access or tampering.
Offline verification also supports audit trails and logging, which are essential for regulatory compliance and operational transparency. This capability is particularly valuable in remote or low-connectivity environments where cloud access is unreliable.
Related Reading
For more on related topics, see: SAHA Edge — Edge EV Charge Management System | Tecell.
Further reading: Tecell CMS – EV Roaming Hub & OCPI Platform | India & Global
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