基于自适应反馈的分组加密工作模式研究

Research on Block Cipher Mode of Operation Based on Adaptive Feedback

分组加密AES算法应用广泛,为了在降低加密时延的同时提高算法的安全性,可以对分组加密的工作模式进行改进。采用软件实现AES加密算法,对分组加密的ECB模式、CBC模式以及新型HCBC模式进行编程。实验表明,HCBC模式能够加密任意长度的数据,并通过密钥还原为相应的明文,具有较好的安全性和运行效率,是结合ECB模式与CBC模式优点的改进方案。

The block cipher AES algorithm is used widely.In order to improve the security of algorithm while reducing latency,the block cipher mode of operation can be improved.Use software to implement the AES algorithm,and program the ECB,CBC and new HCBC mode of operation.Experiments show that the HCBC mode can encrypt data of any length and restore it to the corresponding plaintext through the key.It has better security and operating efficiency.It is an improved scheme that combines the advantages of the ECB and the CBC.