The MTG Key Management System provides centralized management of cryptographic keys throughout their lifecycle, supporting KMIP 2.x and PKCS#11 standards with a REST API for cryptographic operations including encryption, digital signatures, hashing, and random number generation. It integrates with HSMs from vendors like Utimaco, Entrust, and Thales, offering secure key storage, generation, and post-quantum cryptography capabilities. As part of the MTG ERS system, it can expand with additional security components like PKI and HSMs. The solution supports smart metering and IoT device management applications with features including secure firmware updates, role-based access control, and industry compliance standards.