Name
Abstract | ||
|---|---|---|
In many secure group communication models, thereexists a group manager that creates the group key anddistributes it to every group member. Such groupmanager is responsible for changing and re-distributing(rekeying) the group key whenever it deems necessary.Many applications will require very fast rekeying so thatit is not disruptive to their performance. In this paper, wepresent a generic software model for secure group keymanagement. We present the main components along withtheir functionality and interactions. With emphasis on therekey manager, we discuss two issues that criticallyimpact the rekey time: establishment and maintenance ofthe logical key hierarchy (LKH), and the rekey packetconstruction for a changed key. We show that our novelidea of maintaining balanced LKH as B+ search treegreatly reduces the number of changed keys compared toan unbalanced LKH. In addition, we show that a rekeypacket construction using simple XOR operationsbetween keys instead of the usual encryption techniquesubstantially reduces rekey time. We performedexperiments that demonstrate the effectiveness andfeasibility of our approaches. |
Year | DOI | Venue |
|---|---|---|
2003 | 10.1109/ISCC.2003.1214215 | ISCC |
Keywords | Field | DocType |
rekey issues,secure group communication model,group manager,secure group key management,secure group keymanagement,group member,group key,rekey time,rekey packetconstruction,changed key,balanced lkh,logical key hierarchy,message authentication,public key cryptography | Key distribution,Group key,Message authentication code,Computer science,Communication in small groups,Computer network,Encryption,Rekeying,Public-key cryptography,Search tree,Distributed computing | Conference |
ISSN | ISBN | Citations |
1530-1346 | 0-7695-1961-X | 5 |
PageRank | References | Authors |
0.61 | 4 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Sahar M. Ghanem | 1 | 15 | 4.25 |
| Hussein Abdel-Wahab | 2 | 200 | 24.32 |
| Abdel-Wahab, H. | 3 | 40 | 7.24 |