云计算中数据信息加密安全存储仿真研究

Research on Data Encryption and Storage in Cloud Computing

对云计算中数据信息的加密安全存储,能够更好的解决数据信息的存储安全问题。对数据信息加密的安全存储,需要根据信息映射结果,获取信息存储的明文字节和密钥字节,完成云计算中数据信息加密安全存储。传统方法先利用非对称算法加密数据明文,建立访问控制体系,但忽略了获取明文字节和密钥字节,导致信息加密存储效果不理想。提出基于改进密钥的云计算中数据信息加密安全存储方法。利用CP-ABE方法生成公钥和主密钥,定义为初始密钥,设定用户权限列表中每个用户访问的约束条件,引入帐篷映射和猫映射对存储的数据信息序列进行映射,获得其帐篷映射和猫映射的密钥,对映射结果进行整型数值化处理,获取信息存储的明文字节和密钥字节,以此为依据完成对云计算中数据信息加密安全存储。仿真证明所提方法加密性能高,能有效地保障云计算环境下信息存储的安全稳定性。

This paper presents an encryption and storage method of data information in cloud computing based on modified secret key. CPABE method is used to generate public key and master key, which are defined as initial key, then constraint condition of visit of each user in user permission list is set. The tent mapping and cat mapping are introduced to map the stored data information sequence, and secret keys of the tent mapping and cat mapping are obtained. In addition, the integer quantization for the mapping resuhs is carried out, and plaintext bytes and secret key bytes are obtained. Thus, according to that, the encryption and storage are completed. Simulation proves that the method has high encryption performance. It can ensure security and stability of information storage under cloud computing environment effectively.