明文与密文混合分组加密算法设计  

Design of Block Cipher Algorithm Based on Mixing Plaintext and Ciphertext

作　　者：沈长明 陈柏桃[2] 邹阿金[3] 

机构地区：[1]湖南有色地质勘探局地质处,长沙410007 [2]广东海洋大学航海教育质量管理办公室,湛江524088 [3]广东海洋大学信息学院,湛江524088

出　　处：《现代计算机》2008年第6期74-75,共2页Modern Computer

摘　　要：基于分组密码的理论体系,提出一种明文与密文混合加密算法,在加密过程中自动改变每组明文的加密密钥,使得加密结果和新生成的密钥既与待加密的明文有关,也与已加密的密文有关,因而具有明显的伪随机性和不可预测性,并遵循了分组密码的扩散与混淆准则。理论分析和加密实例表明,该得算法简单易行,具有良好的完善保密性和安全性。Based on block cipher theoretical system, proposes an encryption algorithm by mixing plaintext and ciphertext. At the encryption process, by changing the key to each plaintext, makes the new key and the encryption results related with both the encrypting and encrypted plaintext, so that the encryption algorithm possesses pseudo-randomness and unpredictability. The theoretical analysis and simulation results substantiate that the algorithm is simple, highly effective and secure.

关 键 词：分组密码 混合加密 算法复杂性 

分 类 号：TN918.1[电子电信—通信与信息系统]