Researchers from Saint Petersburg Electrotechnical University “LETI” have pioneered a novel data encryption algorithm rooted in chaos theory. This innovation promises enhanced information security and faster processing within secure communication frameworks, as reported by the TASS agency, citing the university’s press service.
The core of this new technique involves the mathematical phenomenon of synchronizing two chaotic systems: a master and a slave. Typically, chaotic systems are known for their extreme sensitivity to perturbations and unpredictable behavior. Nevertheless, in communication contexts, one chaotic system (the master) can encode a signal, while the other (the slave) is utilized for decryption.
Previously, aligning these systems necessitated transmitting extended sections of the signal. LETI experts have identified that certain chaotic systems possess extremely brief signal segments capable of enabling synchronization not just forward, but also in reverse time. This is achieved by reversing the recorded trajectory segment of the master system and solving the slave system’s equations backward in time. Modern computing platforms can execute this “forward-backward” procedure repeatedly in mere fractions of a second. Consequently, the systems achieve perfect synchronization, perceived by the end-user as instantaneous.
According to Denis Butusov, Head of the Department of Computer-Aided Design Systems at ETU “LETI,” the new mathematical model boasts universal applicability. The algorithm could be implemented in secure chaotic communications, rapid data encryption methods, high-sensitivity sensors, and complex system simulations. The research conducted by these Russian scientists was supported by a grant from the Russian Science Foundation.
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