Efficient Geometric Group Key-sharing Scheme

Author(s):  
Koki Nishigami ◽  
Keiichi Iwamura
Keyword(s):  
2017 ◽  
Vol 9 (1) ◽  
pp. 13
Author(s):  
I Made Mustika Kerta Astawa ◽  
Rahmi Nurazizah

Protocol Hsu et.al first introduced in 2012 and is the protocol type Group Key Transfer based Linear Shamir's Secret Sharing Scheme (LSSS). The main idea of this protocol is to use m-secret sharing perspective. This protocol assumes that the difficulty of discrete logarithm problem (DLP) (ie given  is computationally very difficult/not feasible to count ) and Cryptographyc Diffie Hellman (CDH) (ie given  and  it is computationally very difficult/not feasible to count ) in . Thus, it needs to analyze the security attributes to this mechanism Protocol Hsu. Good cryptographic protocols should meet the security attributes Known Security Key, Key-Compromise Impersonation Resillience, Unknown Key-Share Resillience, Key Control and Key Confirmation.


Information ◽  
2019 ◽  
Vol 10 (5) ◽  
pp. 175 ◽  
Author(s):  
Runhai Jiao ◽  
Hong Ouyang ◽  
Yukun Lin ◽  
Yaoming Luo ◽  
Gang Li ◽  
...  

With the development of 5G and the Internet of Things (IoT), mobile terminals are widely used in various applications under multicast scenarios. However, due to the limited computation resources of mobile terminals, reducing the computation cost of members in group key distribution processes of dynamic groups has become an important issue. In this paper, we propose a computation-efficient group key distribution (CEGKD) protocol. First, an improved secret sharing scheme is proposed to construct faster encryption and decryption algorithms. Second, the tree structure of logical key hierarchy (LKH) is employed to implement a simple and effective key-numbering method. Theoretical analysis is given to prove that the proposed protocol meets forward security and backward security. In addition, the experiment results show that the computation cost of CEGKD on the member side is reduced by more than 85% compared with that of the LKH scheme.


Author(s):  
Jun Hamasaki ◽  
Ryo Kaneko ◽  
Keiichi Iwamura
Keyword(s):  

2020 ◽  
Vol 16 (6) ◽  
pp. 875
Author(s):  
Cai Zengyu ◽  
Wu Zuodong ◽  
Zhang Jianwei ◽  
Wang Wenqian

2009 ◽  
Vol 29 (3) ◽  
pp. 638-642
Author(s):  
Wei-ni ZENG ◽  
Ya-ping LIN ◽  
Qiu-ying LU

2011 ◽  
Vol 30 (12) ◽  
pp. 3334-3336
Author(s):  
Wei WANG ◽  
Shun-xian ZHOU

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