IEC 62351 - Power Systems Communication Security 9:5.2: Part 9, 5.2 to 5.5: key management lifecycle, key usages, key management system security policy and design principles for power system operations

Keys are managed across the life cycle of the device (manufacturing, onboarding, operation, decommissioning) and the life cycle of the key (generation, distribution, use, update, revocation, destruction), by usage, under a key management system security policy and design principles suited to long-lived, constrained, dispersed power system equipment.