scholarly journals Security analysis and enhancement for three-party password-based authenticated key exchange protocol

2011 ◽  
Vol 5 (3) ◽  
pp. 273-278 ◽  
Author(s):  
Jianjie Zhao ◽  
Dawu Gu ◽  
Lei Zhang
Keyword(s):  
Security Analysis ◽  
Key Exchange ◽  
Authenticated Key Exchange ◽  
Key Exchange Protocol ◽  
Authenticated Key Exchange Protocol

Unlinkable Affiliation-Hiding Authenticated Key Exchange

2011 ◽  
Vol 467-469 ◽  
pp. 640-644
Author(s):  
Yong Ding ◽  
Bin Li ◽  
Zheng Tao Jiang
Keyword(s):  
Key Agreement ◽  
Mutual Authentication ◽  
Security Analysis ◽  
Key Exchange ◽  
Public Key ◽  
Authenticated Key Exchange ◽  
Key Exchange Protocol ◽  
Authentication And Key Agreement ◽  
Other Information ◽  
Authenticated Key Exchange Protocol

Affiliation-hiding authenticated key exchange protocol, also called secret handshake, makes two parties from the same organization realize mutual authentication and key agreement via public key certificates without leaking the organization information to any others. Moreover, if the peer involved in the protocol is not from the same group, no any information of the affiliation can be known. In previous secret handshakes protocols, there is a problem which is linkability. That is to say, two activities of the same people can be associated by the attackers. It is not desirable for privacy because the association may deduce it’s affiliation with some other information. In this paper, an unlinkable affiliation-hiding authenticated key exchange protocol is brought out to conquer the linkability. Security analysis is given finally.

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