期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2014
卷号：3
期号：7
页码：2382-2388
出版社：Shri Pannalal Research Institute of Technolgy
摘要：In computer networking, multicast is t he delivery of a message or information to a group of destination computers simultaneously in a single transmission from t he source. However, the existing group key management (GKM) schemes, aiming to secure communication within a single group, are not suitable in multiple multicast group environments because of inefficient use of keys, and much larger rekeying overheads. In t his paper, we propose a new GKM scheme for mult iple multicast groups, called the master- key-encryption-based multiple group key management (MKE- MGKM) scheme. The MKE-MGKM scheme exploits asymmetric keys, which are generated from the proposed master key encryption (MKE) algorithm, and is used for efficient distribution of t he group key. It alleviates the rekeying overhead by using the asymmetry of t he master and slave keys, i.e., even if one of the slave keys is updated, the remaining ones can still be unchanged by modifying only the master key. Through numerica l analysis and simulations, it is shown that the MKE-MGKM scheme can reduce the storage overhead of a key distribution center (KDC) by 75% and the storage overhead of a user by up to 85% , and 60% of t he communication overhead at most, compared to the existing schemes.
关键词：group key management; multicast; and ; master key encryption
