Elliptic Curve Cryptosystem-Based Group Key Management for Secure Group Communications
Pitipatana Sakarindr, Nirwan Ansari · 2007
Group key management (GKM) prevents all non-membership users from acquiring the group key to decrypt the encrypted messages broadcasted among group members. In this paper, we incorporate elliptic curve cryptosystem (ECC) into GKM to decrease the key length while providing securities at the same level as that of other cryptosystems, and propose the cluster scheme to make the key management more efficient.