基于多态性密码的智能设备的安全设计

Design on Smart Terminal Communication Security Based on Polymorphic Cipher

智能设备在现在及未来的生活中有着重要的地位,但是如何保证智能终端之间的通信安全以及维持安全稳定快捷的信息交互是当前应重点研究的问题。针对智能终端要求的轻量级加密提出了一种基于强单向函数构造的随机群来设计多态性密码的PRNG(伪随机序列生成器),用来产生一组128 bit的随机序列对智能终端之间的信息交互进行加密。在实验部分使用严格雪崩准则对设计的算法进行分析,通过实验证明该算法能满足要求。

With the development of lnternet of Things, the smart terminal communication security and privacy protection of in6mnation upladed to the cloud become more important. The polymorphic encryption is random and hard to be cracked. This paper designs a PRNG （Pseudo Random Noise Generator） of polymorphic cipher by a random group constructed from strong one-way fimction, which generates a random 128-bit sequence to encrypt smart temfinal conmmnication data. The algorism is proofed by Strict Avalanche Criterion （SAC）, and the results shows that this algorithm can meet the requirement ofcryptolog＇y.