Cyber electronic system based on AI

The invention relates to a cryptographic system for the secure transmission of messages between two or more computer entities through the use of coupled electronic cards that allow the encryption and decryption of messages between the entities as a secure communication bridge between equal or different transmission protocols.

The system is based on two coupled groups of electronic cards (A and B) programmed with neural networks (associative or neural machine translation) in order to allow the encryption and decryption of the messages exchanged between the two groups in total security.

The minimum system includes a single pair of A and B electronic cards interposed between two IT entities to allow the secure transmission of messages and data.

The neural network prevents malicious users from performing a reverse-engineering operation by deriving the encryption algorithm entering in possession of one or even two cards of the pair, since the algorithm is embedded in the neural network and the encoding table changes with each realisation of a new group of cards.

To increase encryption protection, a common security key is shared by the groups using the known Diffie-Hellman key exchange algorithm, whose specific use is in this patent description. The security key is applied word by word in XOR with the message in A before encryption, in B after encryption (fig. 2).

Each system is based on a microcontroller card with two interfaces that allow communication with the outside: the two interfaces can be either of the same type or even of a different type, so that they can be used in any situation: each card encodes and decodes the part of the data of the messages that goes through each card, without changing the protocol part of the same, thus allowing the transmission of data without modifying the transmission channel. The system acts as a secure communication bridge between transmission protocols: speaking of ISO/OSI levels, the system performs data encryption at level 5.

It can also foreseen the implementation of the cards in a single-chip.