PROGRAMMABLE LOGIC CONTROLLER HAVING EMBEDDED DYNAMIC GENERATION OF ENCRYPTION KEYS

摘要

The disclosed embodiments relate to a programmable logic controller ("PLC") having embedded encryption key generation capability for generating symmetrical keys or asymmetrical key pairs unique to the PLC. The PLC unique encryption keys may then be used to secure communication with the particular PLC and/or to validate executable program code prior to execution thereof by the intended PLC.