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中文摘要：
为了更加有效地保障信息安全,针对低维混沌密码体系和传统LSB的缺点,构建了基于高维Lorenz混沌系统的加密体系,增大了密钥空间。通过理论和实验分析,选择了合适的采样间隔,并利用LSB隐蔽性强的特点,提出了一种基于高维混沌加密的LSB加密体系。理论分析和实验结果表明,该算法可以有效抵御局部线性攻击、相空间重构攻击和熵攻击等,安全性较高,且具有较强的鲁棒性。
英文摘要：
In order to ensure the secure communication,aimed at the defects of low-dimensional chaotic encryption and classical LSB,the high-dimensional chaotic encryption system is established.The key space is increased.Through the theoretical analysis and experiments,an appropriate sampling interval also is selected.Combined with the good concealment of LSB,a double encryption algorithm is proposed based on LSB and chaotic Lorenz system.The results indicate that the algorithm resist the local linear attack,phase space reconstruction attack and entropy attack.It has high security and robustness.
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