信息化背景下会计数据加密算法研究 ——以 DES算法为例

吴 艳红
湛江科技学院

摘要

高速发展的网络对人们的工作和生活带来了越来越多的影响，也为人们的信息交流提供了便捷的渠道，
进而改善了人们的生活和工作条件。但是，当数据通过网络传输时，存在安全隐患，尤其是重要的会计数据。一
旦被犯罪分子截获和使用，可能会对数据所有者造成严重的危害。基于以上背景，本文的目的是研究在计算环境
中使用DES算法对会计数据进行加密。本文运用了一种改进的量子遗传算法，并将其应用到DES算法的S-盒设计
中，改善了S-盒的非线性，降低了差分均匀性，提高了DES算法的安全性。这种改进的DES算法通过使用两轮函
数增加密钥长度和迭代处理，减少了迭代次数，进一步提高了算法的安全性，提高了加密过程的运算速度。发现
DES算法的64个密文以及与原始密文相比改变的比特数在32位左右波动，说明了使用DES算法加密会计数据时应
注意的问题。为了防止密钥丢失或泄露，密钥的有效性需要得到保证，这样才能保证成批的较短数据进行加密时
保证它的安全性。1

关键词

DES算法；会计数据；数据加密；加密算法

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