Self-stabilizing secure and heterogeneous systems

A method for providing self-stabilization of functionality security and privacy to a distributed computer system with self-stabilizing machines, according to which the system periodically and constantly recovers from cyber-attacks performed by an adversary who gained access to the system during a vulnerability window. Then a True Random Number Generator (TRNG) generates a random number from which generating a pair of public and private keys are generated. The public key of the pair is distributed among neighboring machines, to generate a common symmetric secret key. Each machine to exchanges messages with any other machine using messages that are encrypted and decrypted by their established common symmetric secret key, where all keys are generated using random numbers that were generated by the True Random Number Generator.