Attribute-Based Access Control for Multi-Authority Systems with Constant Size Ciphertext in Cloud Co

• 作 者: CHEN Yanli SONG Lingling YANG
• 机 构: CollegeofComputer,OverseasCooperation&,ExchangeOffice
• 出 处: 中国通信：英文版
• 发表日期: 2016年2期
• 关键词: 系统初始化 计算成本 密文 访问控制 权威 属性 加密解密 安全访问 cloud computing attribute-basedencryption a
• 基金项目: The authors would like to thank the reviewers for their detailed reviews and constructive comments, which have helped improve the quality of this paper. This work was supported by National Natural Sci

In most existing CP-ABE schemes, there is only one authority in the system and all the public keys and private keys are issued by this authority, which incurs ciphertext size and computation costs in the encryption and decryption operations that depend at