摘要
数据加密是计算机系统安全防护的基本措施之一。论述了凯撒(Caesar)加密算法的一般原理及加密方法,分析了凯撒密码(Caesar)加密算法的脆弱性,针对中文信息,利用汉语拼音的音标结合矩阵混合置换,提出了对凯撒密码(Caesar)的改进方法,强化了加密性能,增加了破解的难度。
Data Encryption is a fundamental solution for the computer system＇ s security. This paper introduced the basic theory and approach of Caesar Ciphering, and analyzed the vulnerability of Caesar Cipher. Considering the Chinese inforrnation, this paper proposed an improved algorithm using the Chinese syllable integrated with permutation matrix, which will enforce the encryption performance and make it more difficult to be attacked.
出处
《计算机安全》
2013年第4期57-60,共4页
Network & Computer Security
关键词
加密算法
凯撒密码
置换密钥矩阵
Encryption Algorithm
Caesar Ciphering
Permutation matrix
