On-site meter work requires field staff to have the right credentials for the right operation. Managing those credentials alongside task assignments and results creates a need for controlled provisioning, revocation and traceable use, without leaving unnecessary security material on mobile devices.

The central system plans and assigns operations and manages the full lifecycle of HLS keys and credentials, from generation and secure distribution to revocation. It provisions material only for the scope of each task. The mobile client executes assigned operations using that material, retains as little as possible on the device, and returns results and audit records.

Develop the central workflow for planning, assigning and tracking on-site meter operations. Implement HLS key and credential lifecycle management and task-scoped provisioning. Develop the mobile client to execute assigned tasks with minimal local retention of security material, and integrate the collection of operation results and audit records.