MTG Key Management System(MTG KMS) A central key management system relieves applications from complex security tasks, standardizes security processes and thus reduces costs. MTG Mehrwert-Konnektor BSI-compliant and easy control of value-added applications and IoT devices through the CLS channel of a Smart Meter Gateway. Hardware Security Module Hardware for the efficient and secure processing of cryptographic operations or applications. MTG Metering-CA MTG-Metering-CA is a PKI product specifically designed for the German energy market. MTG CryptoController. MTG CryptoController is required for Smart Meter Gateway communication according to BSI TR-03109 and applicable for different use cases. MTG eID-Server Electronic identity server as a connection between the ID cardholder and an online shop or service provider. MTG CARA Public key infrastructure for the generation, use and administration of certificates.