Quantum mechanics

Algorithm

Chaotic

Computer security

Theoretical computer science

Encryption

Stream cipher

Computer science

Computer network

Cryptosystem

Physics

Lattice-based cryptography

Computer engineering

Artificial intelligence

Quantum

Quantum cryptography

Cryptography

Quantum information

Chaos An Interdisciplinary Journal of Nonlinear Science

A one-way-coupled chaotic map lattice is proposed for cryptography of self-synchronizing stream cipher. The system performs basic floating-point analytical computation on real numbers, incorporating auxiliarily with few simple algebraic operations on integer numbers. Parallel encryption (decryption) operations of multiple chaotic sites are conducted. It is observed that the system has high practical security, fast encryption (decryption) speed with software realization, and excellent reliability against strong channel noise, and its overall cryptographic properties are considerably better than both known chaotic cryptosystems and currently used conventional cryptosystems, including the advanced encryption standard.

A new spatiotemporally chaotic cryptosystem and its security and performance analyses