Paper Info
Title
Broadcast encryption using efficient key distribution and renewal for ubiquitous environments
Abstract
The method of broadcast encryption has been applied to the transmission of digital information such as multimedia, software, and paid TV on the open network. In this broadcast encryption method, only previously authorized users can gain access to digital information. When broadcast message is transmitted, authorized users can first decode the session key using the previously given private key and get digital information using this session key. This way, users retrieve a message or a session key using the key transmitted by broadcasters. For their part, broadcasters need to generate and distribute keys. Broadcasters should also carry out efficient key renewal when users subscribe or unsubscribe. This paper introduces how to generate and distribute key efficiently and how key renewal works. The proposal uses two methods: (1) the server generates keys without the consent of users by anticipating users, and; (2) the server and users generate keys by mutual agreement. The advantage of the two proposed methods is that the receiver can decode broadcast message using a secret key. Even if the key is renewed later, the user can efficiently renew using only a single set of information.
Year
DOI
Venue
2006
10.1007/11807964_73
EUC Workshops
Keywords
Field
DocType
digital information,authorized user,key renewal work,session key,secret key,broadcast encryption,broadcast encryption method,private key,efficient key renewal,efficient key distribution,ubiquitous environment,broadcast message,key distribution
Broadcast encryption,Key distribution,Key generation,Computer security,Computer science,Computer network,Encryption,Public-key cryptography,Message passing,Session key,Cable television,Distributed computing
Conference
Volume
ISSN
ISBN
4097
0302-9743
3-540-36850-7
Citations 
PageRank 
References 
0
0.34
5
Authors
3
Name
Order
Citations
PageRank
Deokgyu Lee16112.70
Jang-Su Park241.22
Im-Yeong Lee314724.59