摘要
针对电子信息的集中管理问题,提出了一个分布式的基于身份的代理重加密方案。该方案利用代理将用发送方身份加密的密文,转化成接收方可以利用自己的私钥解密的密文,而在这个过程中,半可信的代理不能对密文进行解密。该方案不用存储公钥证书,降低了密钥管理的难度;采用了分布式计算环境,进一步提高了资源利用率;密文经过聚合后,使得长度变短,极大地减少了通信开销。
To solve the problem of centralized management of electronic information, a distributed identity based proxy re-encryption scheme is proposed. The scheme transforms the ciphertext encrypted by the agent with the sender＇s identity into the ciphertext that the receiver can decrypt with his own private key, and in this process, the semi-trusted proxy cannot decrypt the ciphertext. The scheme is not necessary to store public key certificate, which reduces the di^culty of key management. The distributed computing environment is adopted to further improve the utilization rate of resources. And after polymerization of the ciphertext, the shorter length greatly reduces the communication overhead.
出处
《数字技术与应用》
2017年第9期187-188,共2页
Digital Technology & Application
关键词
集中管控
分布式
代理重加密
centralized management
distributed
proxy re-encryption
