【摘要】 针对现有流媒体加密算法在安全性、通用性和实用性方面存在的缺陷,提出一种全新的基于混沌参数可变序列的流加密算法。该算法利用多层次迭代、密钥实时改变的思想,提高了安全性能。另外,本算法以流式加密为基础,采用直接加密的方式,使其适用于不同的视频编码标准,并且易于硬件实现。通过理论分析和实验结果,进一步证实了此算法具有很好的保密性和实时性。更多还原

【Abstract】 Aiming at the current faults of algorithm for video encryption which existed in security,compatibility and practicality,it was proposed a chaos based algorithm for video encryption.In addition,this algorithm was based on stream-encryption algorithm,and adopted the mathod of direct-encryption algorithm,in order to be used on different video coding standards and be easily carried out using hardware.According to theoretical analysis and results of experiments,it was proved that this algorithm had execllent security and tiny dalay.更多还原