基于DES和LSB算法的云计算安全模型  

Cloud Computing Security Model Based on DES and LSB

作　　者：王宁[1] 胡雪松 Wang Ning;Hu Xuesong(The Third Research Institute of the Ministry of Public Security,Beijing 100000;Educational Insurance Department of Army Academy of Amord Forces,Beijing 100072)

机构地区：[1]公安部第三研究所,北京100000 [2]陆军装甲兵学院教保处,北京100072

出　　处：《信息通信》2019年第9期58-60,共3页Information & Communications

摘　　要：云存储是解决存储资源有限的一种选择。存储在云上的数据保密性和安全性非常重要。可以通过密码学技术来实现这些数据的保密性和安全性。数据加密标准(DES)作为标准对称加密算法是常用的分组密码算法之一。DES将生成一个由8个密码块组成的密文,但这种密文对于暴力攻击基本没有作用。因此,利用最小有效位(LSB)算法将最后的8个密码块转换成8个随机图像,然后利用DES算法,再提出合并成一个密文。Cloud storage is an alternative to limited storage resources.Data privacy and security stored in the cloud are important.The confidentiality and security of these data can be realized by cryptography.As a standard symmetric encryption algorithm,data encryption standard(DES)is one of the commonly used block cipher algorithms.DES will generate a ciphertext composed of eight cipher blocks,but this ciphertext has little effect on violent attacks.Therefore,the minimumsignificant bit(LSB)algorithm is used to convert the last 8 cryptographic blocks into 8 random images,and then DES algorithm is used to propose and combine them into one ciphertext.

关 键 词：DES LSB 云计算 安全模型 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]