scholarly journals Analysis and Improvement of Key Distribution Scheme for Secure Group Communication

2016 ◽  
Vol 2016 ◽  
pp. 1-7
Author(s):  
Jia Ning Luo ◽  
Ming Hour Yang
Keyword(s):  
Group Communication ◽  
Encryption Algorithm ◽  
Forward Secrecy ◽  
Secure Group Communication ◽  
Distribution Scheme ◽  
Key Update ◽  
Malicious Insiders ◽  
And Performance ◽  
Ciphertext Policy ◽  
Group Member

In a secure group communication, messages between a group coordinator and members are protected by session keys. If a group’s membership changes, the session keys should be updated to insure forward secrecy and backward secrecy. Zhou and Huang proposed a key-updated scheme based on ciphertext-policy attribute encryption algorithm to improve the security of key-update mechanism, but their scheme is vulnerable: a malicious group member may send forged key-update messages to control the group. In this paper, we analyze the vulnerability in Zhou and Huang’s scheme and propose an enhanced scheme. In our scheme, only the group initiator can update group keys and the verification of key-update mechanism is improved to prevent malicious insiders from controlling the group. We also give a security and performance analysis of our scheme.

scholarly journals A Efficient Key Distribution Scheme for Individual/Group Communication on TRS

2006 ◽  
Vol 13C (7) ◽  
pp. 913-922
Author(s):  
Deok-Gyu Lee ◽  
Yong-Suk Park ◽  
Jong-Chul Ahn ◽  
Im-Yeong Lee
Keyword(s):  
Group Communication ◽  
Key Distribution ◽  
Individual Group ◽  
Distribution Scheme

Key management and key distribution for secure group communication in mobile and cloud network

2018 ◽  
Vol 84 ◽  
pp. 123-125 ◽  
Author(s):  
P. Vijayakumar ◽  
Victor Chang ◽  
L. Jegatha Deborah ◽  
Bharat S. Rawal Kshatriya
Keyword(s):  
Key Management ◽  
Group Communication ◽  
Key Distribution ◽  
Secure Group Communication ◽  
Cloud Network
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