scholarly journals Two-sources randomness extractors in finite fields and in elliptic curves

2017 ◽  
Vol Volume 24 - 2017 - Special... ◽  
Author(s):  
Hortense Boudjou Tchapgnouo ◽  
Abdoul A. Ciss ◽  
Djiby Sow ◽  
D.T. Kolyang
Keyword(s):  
Elliptic Curves ◽  
Finite Fields ◽  
Key Exchange ◽  
Sources Of Information ◽  
Nous Proposons ◽  
Key Exchange Protocol ◽  
Randomness Extractors ◽  
Diffie Hellman ◽  
Diffie Hellman Key Exchange ◽  
Key Extraction

We propose two-sources randomness extractors over finite fields and on elliptic curves that can extract from two sources of information without consideration of other assumptions that the starting algorithmic assumptions with a competitive level of security. These functions have several applications. We propose here a description of a version of a Diffie-Hellman key exchange protocol and key extraction. Nous proposons des extracteurs d'aléas 2-sources sur les corps finis et sur les courbes elliptiques capables d'extraire à partir de plusieurs sources d'informations sans considération d'autres hypothèses que les hypothèses algorithmiques de départ avec un niveau de sécurité compétitif. Ces fonctions possèdent plusieurs applications. Nous proposons ici une version du protocole d'échange de clé Diffie-Hellman incluant la phase d'extraction.

A Faster Software Implementation of the Supersingular Isogeny Diffie-Hellman Key Exchange Protocol

2018 ◽  
Vol 67 (11) ◽  
pp. 1622-1636 ◽  
Author(s):  
Armando Faz-Hernandez ◽  
Julio Lopez ◽  
Eduardo Ochoa-Jimenez ◽  
Francisco Rodriguez-Henriquez
Keyword(s):  
Key Exchange ◽  
Software Implementation ◽  
Key Exchange Protocol ◽  
Diffie Hellman ◽  
Diffie Hellman Key Exchange

scholarly journals Extended supersingular isogeny Diffie–Hellman key exchange protocol: Revenge of the SIDH

2021 ◽  
Author(s):  
Daniel Cervantes‐Vázquez ◽  
Eduardo Ochoa‐Jiménez ◽  
Francisco Rodríguez‐Henríquez
Keyword(s):  
Key Exchange ◽  
Key Exchange Protocol ◽  
Diffie Hellman ◽  
Diffie Hellman Key Exchange

scholarly journals Enhancement of Security of Diffie-Hellman Key Exchange Protocol using RSA Cryptography.

2022 ◽  
Vol 2161 (1) ◽  
pp. 012014
Author(s):  
Chiradeep Gupta ◽  
N V Subba Reddy
Keyword(s):  
Key Exchange ◽  
Secret Key ◽  
Key Exchange Protocol ◽  
Diffie Hellman ◽  
Shared Secret ◽  
Diffie Hellman Key Exchange ◽  
Intended Receiver ◽  
Rsa Cryptography ◽  
Shared Secret Key ◽  
Mitm Attack

Abstract Cryptography is related and referred to as the secured transmission of messages amongst the sender and the intended receiver by ensuring confidentiality, integrity, and authentication. Diffie – Hellman (DH) key exchange protocol is a well-known algorithm that would generate a shared secret key among the sender and the intended receiver, and the basis of cryptosystems for using public and private key for encryption and decryption process. But it is severely affected by the Man in the Middle (MITM) attack that would intercept and manipulate thus eavesdropping the shared secret key. This paper proposes a model of integrating the public-key RSA cryptography system with the DH key exchange to prevent the MITM attack. The performance of the proposed work has been compared to the DH Key Exchange algorithm as well as RSA Cryptosystem to conclude for effectiveness of the proposed model.

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