Multi-recipient Encryption in Heterogeneous Setting
This paper presents an efficient method for securely broad casting a message to multiple recipients in a heterogeneous environment where each recipient is allowed to choose his or her preferred secure encryption scheme independently of other recipients choices.Previous work pertinent to this direction of research, namely multi-recipient en cryption scheme (MRES), generally requires all recipients adhere to the same public key encapsulation mechanism (KEM) for the sake of deliv ering promised savings in computation and bandwidth via randomness reuse.Our work eliminates the requirement of using the same KEM by all recipients, whereby removing a practical barrier to the adoption of MRES in real world applications.A second advantage is the methods capability to cope with a dynamically changing group of recipients where old recipients may be deleted and new recipients may be added, while ensuring the security of messages shared in future.Additional features of our method include decryption by a sender, anonymity of recipients and stateful key encapsulation which significantly reduces computational costs for securely transmitting or sharing new messages.All these at tributes would be useful in building applications for secure data sharing in a cloud computing environment.
multi-recipient public key encryption sender recovery KEM DEM
Puwen Wei Yuliang Zheng Wei Wang
Key Laboratory of Cryptologic Technology and Information Security,Ministry of Education,Shandong Uni Department of Software and Information Systems,University of North Carolina at Charlotte,Charlotte,N
国际会议
福州
英文
462-480
2014-05-05（万方平台首次上网日期，不代表论文的发表时间）