基于混沌序列的双重加密安全网络编码方案设计

发布时间：2018-04-20 08:37

  本文选题：全局窃听 + 混沌序列　； 参考：《计算机应用》2017年12期

【摘要】：针对当前对抗全局窃听的网络编码方案计算量大、占用带宽大、安全性不高等问题,提出一种基于混沌序列的双重加密方案。首先,利用密钥对传输数据的最后一维进行加密,加密时用数据本身扰动混沌序列;然后,用另一密钥和随机数密钥生成编码系数矩阵,此时用m序列对混沌序列进行扰动;最后,用得到的编码系数矩阵对未加密消息和加密消息进行线性组合,实现对抗全局窃听。由于编码系数矩阵是由密钥生成的,不需要在信道中传输编码系数,相对于实体网络编码(SPOC)方案,所提方案节省了网络中对编码系数传输的带宽开销。分析和实验结果表明,该方案提高了网络的安全性能,对唯密文攻击和已知明文攻击都能起到作用,并且提高了传输效率,算法复杂度适中。
[Abstract]:A double encryption scheme based on chaotic sequences is proposed to solve the problems of large computation large bandwidth and low security in the current network coding scheme against global eavesdropping. Firstly, the last one dimension of the transmitted data is encrypted with the key, and the chaotic sequence is disturbed by the data itself, then the encoding coefficient matrix is generated by another key and random number key, and the chaotic sequence is disturbed by m sequence. Finally, the unencrypted and encrypted messages are linearly combined with the encoding coefficient matrix to combat global eavesdropping. Because the encoding coefficient matrix is generated by the key, it is not necessary to transmit the encoding coefficient in the channel. Compared with the solid network coding scheme, the proposed scheme saves the bandwidth overhead of the transmission of the coding coefficient in the network. The analysis and experimental results show that the proposed scheme can improve the security performance of the network, play a role in cipher-only attacks and known plaintext attacks, and improve the transmission efficiency. The algorithm complexity is moderate.
【作者单位】： 辽宁工程技术大学电子与信息工程学院;
【基金】：国家科技支撑计划项目(2013BAH12F02) 辽宁省高等学校杰出青年学者成长计划项目(LJQ2012029)~~
【分类号】：TN915.08
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本文编号：1777053