Lock administration system

A lock administration system for self-powered locks is provided. The system comprises an ASP (application service provider) server operationally connected to the Internet and configured to store lock system related information, at least one client module configured to control the generating of shared secrets for encrypting and decrypting, and the generating and the encrypting of lock access data packets using a token, transmit the data packets to the ASP server using public networks, receive an encrypted status packet from the ASP server using public networks, control the decrypting of the status packet and send information regarding the decrypt status packet to the ASP server using public networks and at least one lock configured to receive data packets from the ASP server via public networks, decrypt the data packets and send an encrypted status packet to the ASP server using public networks.