Rossler非线性动力机在密码学中的应用
Rossler Nonlinear Dynamical Machine for Cryptography Applications
摘要：
在密码或IP地址加密方案等许多加密应用中，对称加密是有用的。在密码学的这些相对简单的应用中，由于与非对称密码学相关联的计算和实现复杂性，非对称密码学难以证明是合理的。对称方案使用仅在两个通信主机之间已知的单个共享密钥。该共享密钥用于数据的加密和解密。这个密钥必须是小的，除了是一个潜在的大密钥空间的子集，使其方便通信主机，同时使密码分析困难的潜在攻击者。在本工作中，一个抽象的Rossler非线性动力机已被描述第一。Rossler系统表现出一定的系统参数和初始条件的值的混沌动力学。Rossler系统的混沌动力学具有明显的不稳定性和不规则性以及对初始条件的极端敏感性，已被用于密钥的设计，试图增加潜在攻击者的混乱和挑战。
英文摘要：
In many of the cryptography applications like password or IP address encryption schemes, symmetric cryptography is useful. In these relatively simpler applications of cryptography, asymmetric cryptography is difficult to justify on account of the computational and implementation complexities associated with asymmetric cryptography. Symmetric schemes make use of a single shared key known only between the two communicating hosts. This shared key is used both for the encryption as well as the decryption of data. This key has to be small in size besides being a subset of a potentially large keyspace making it convenient for the communicating hosts while at the same time making cryptanalysis difficult for the potential attackers. In the present work, an abstract Rossler nonlinear dynamical machine has been described first. The Rossler system exhibits chaotic dynamics for certain values of system parameters and initial conditions. The chaotic dynamics of the Rossler system with its apparently erratic and irregular characteristics and extreme sensitivity to the initial conditions has been used for the design of the cryptographic key in an attempt to increase the confusion and the challenge for the potential attackers.
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