Multi-party Key Exchange for Unbounded Parties from Indistinguishability Obfuscation

2015 ◽  
pp. 52-75 ◽  
Author(s):  
Dakshita Khurana ◽  
Vanishree Rao ◽  
Amit Sahai
Keyword(s):  
Key Exchange ◽  
Indistinguishability Obfuscation

scholarly journals Multiparty Non-Interactive Key Exchange and More From Isogenies on Elliptic Curves

2020 ◽  
Vol 14 (1) ◽  
pp. 5-14
Author(s):  
Dan Boneh ◽  
Darren Glass ◽  
Daniel Krashen ◽  
Kristin Lauter ◽  
Shahed Sharif ◽  
...  
Keyword(s):  
Elliptic Curves ◽  
Abelian Variety ◽  
Efficient Algorithm ◽  
Group Structure ◽  
Mathematical Problem ◽  
Key Exchange ◽  
Cryptographic Primitives ◽  
Indistinguishability Obfuscation ◽  
Multilinear Maps ◽  
Multilinear Map

AbstractWe describe a framework for constructing an efficient non-interactive key exchange (NIKE) protocol for n parties for any n ≥ 2. Our approach is based on the problem of computing isogenies between isogenous elliptic curves, which is believed to be difficult. We do not obtain a working protocol because of a missing step that is currently an open mathematical problem. What we need to complete our protocol is an efficient algorithm that takes as input an abelian variety presented as a product of isogenous elliptic curves, and outputs an isomorphism invariant of the abelian variety.Our framework builds a cryptographic invariant map, which is a new primitive closely related to a cryptographic multilinear map, but whose range does not necessarily have a group structure. Nevertheless, we show that a cryptographic invariant map can be used to build several cryptographic primitives, including NIKE, that were previously constructed from multilinear maps and indistinguishability obfuscation.

Key Exchange Protocol Supporting Mobility and Multihoming

2006 ◽  
Vol 1 (2) ◽  
pp. 52-70
Author(s):  
Mohammed A. Tawfiq ◽  
◽  
Sufyan T. Faraj Al-janabi ◽  
Abdul-Karim A. R. Kadhim ◽  
◽  
...  
Keyword(s):  
Key Exchange ◽  
Key Exchange Protocol

Gateway-Oriented Password-Authenticated Key Exchange Based on RSA

2011 ◽  
Vol 34 (1) ◽  
pp. 38-46 ◽  
Author(s):  
Fu-Shan WEI ◽  
Chuan-Gui MA ◽  
Qing-Feng CHENG
Keyword(s):  
Key Exchange ◽  
Authenticated Key Exchange

Efficient group key exchange protocol with strong security

2010 ◽  
Vol 30 (7) ◽  
pp. 1805-1808
Author(s):  
Shao-feng DENG ◽  
Fan DENG ◽  
Yi-fa LI
Keyword(s):  
Key Exchange ◽  
Key Exchange Protocol ◽  
Group Key ◽  
Group Key Exchange
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