Protocol for Applying an Integrity-Assurance System Using Shortened Codes

Abstract

The paper examines a protocol for implementing a data integrity assurance system for the Industrial Internet of Things (IIoT) based on shortened Goppa codes. The main integrity threats in IIoT are analyzed, and it is shown that the presence of a cryptographic algorithm alone, without a proper protocol, does not guarantee the secure operation of the system. The use of a block-chaining protocol with the assignment of unique identifiers (UIDs) and timestamps is proposed to detect message replays and delays. A block- chaining encoding mechanism is described, which significantly reduces the likelihood that an attacker can form a valid codeword with a required UID. It is demonstrated that such a protocol minimizes risks associated with the linearity of shortened codes and provides an additional layer of protection, provided the Goppa polynomial key remains undisclosed.