A complex infrastructure for work with cryptographic keys. There are two HSM Thales nShield Connect 1500+ network modules, one in each locality. To support the administration and configuration of the entire network modules use, a server with installed client SW is available in one of the localities, playing the special role of a management server (RFS). For communication between individual infrastructure components, an Impath secured company protocol is used, providing communication encryption and authentication of individual components. The project also included the preparation of application prototypes using HSM modules through the PKCS#11 interface, technical support, and extended after-warranty service.