基于离散斜帐篷映射的混沌加密系统

A new chaotic cryptosystem based on discrete skew tent map

利用帐篷映射的混沌特性并结合动态参数和明文块细分子块方法,提出了一种改进了的基于离散斜帐篷映射的混沌加密方法。该方法不仅继承了原有系统的优良密码学特性,而且通过理论分析和实验证明它拥有更好的抗选择明文攻击特性以及较稳定的加解密速度。

A new chaotic cryptosystem based on discrete skew tent map was proposed by making use of the dynamic encryption parameter and fractionized sub-blocks of plain text block scheme, and taking into account of the chaos features of the tent map. The proposed cryptosystem inherited the advantages of the original one. Theoretic analysis and experiment results prove that it has better anti-chosen-plaintext-attack property and stable encryption/decryption speed.