链路层随机线性加密算法改进设计

The link layer random linear encryption algorithm design improvements

在数据通信链路层进行随机线性加密,提高链路层数据传输的编解码速率和安全性。传统方法采用区间分割的算术编码方案实现信息加密,无法满足链路层数据加密的效率需求。提出一种基于分段混沌谱补偿的链路层随机线性加密算法。对链路层数据进行线性算术编码设计,采用分段混沌谱补偿方法提高加密密钥的不可预测性,进行随机线性加密,降低明文攻击的危险。仿真结果表明,该算法进行数据加密的密文序列的敏感性平均变化率接近理想值,加密效率较高,对链路层的蛮力攻击具有很好的抵御效果。

In random linear encryption, data communication link layer and increase the link layer the decoding speed of data transmission, and security. Traditional methods using interval segmentation arithmetic coding scheme to realize information encryption, unable to meet the demand of the efficiency of the data link layer encryption. A model- based compensation link layer random linear subsection chaos encryption algorithm. To linear arithmetic coding design of data link layer, using subsection chaos compensation methods improve encryption keys unpredictability, conduct random linear encryption, reduce the risk of plaintext attack. Simulation results show that the algorithm of data encryption cipher sequence of the sensitivity of the average rate is close to ideal value, encryption efficiency is higher, the link layer of a brute force attack has the very good protection against effect.