S盒的设计是分组密码设计的重要组成部分. 提出一种基于参数抖动的耦合映
像格子时空混沌系统设计S盒的方法，使用带有参数抖动的交叉耦合映像格子模型和基
于Chebyshev映射的格子局部状态生成函数，实现8×8 S盒的快速批量生成. 通过非线性度、
差分均匀性、严格雪崩准则、输出比特间独立性及双射特性等评价准则的分析和测试，对批量
产生的盒子进行优选，并就优选盒子的各项性能与已有的基于混沌的S盒子进行对比和分析.
结果表明：该方法所构造的优选S盒，其密码学特性更优良，可作为基本部件用于新型分组密
码系统的设计.

Design of S-boxes is an important part in the block ciphers design. In this paper,
the S-box construction method based on spatiotemporal chaotic system is proposed.
Cross coupled map lattices based on the Chebyshev map with random parameters dither are
used to produce a large number of 8×8 S-boxes. Evaluation tests are carried out, including
nonlinearity, equiprobable input/output XOR distribution, strict avalanche criterion, output
bit independence criterion and bijective property. The prior S-box is picked up in the
test. Further comparison results indicate that the prior S-box has better cryptographical
properties than existing chaos-based methods. It can be used as a core component in the
design of new block cipher systems.