scholarly journals Secure Hybrid Crypto-system AES/RSA on FPGA for Data Communication

2020 ◽  
Vol 3 (1) ◽  
pp. 14-23
Author(s):  
M Issad ◽  
N Anane ◽  
A M Bellemou ◽  
B Boudraa
Keyword(s):  
Graphical User Interface ◽  
Information Technologies ◽  
Data Transfer ◽  
Data Communication ◽  
Digital Data ◽  
Key Exchange Protocol ◽  
Client Server ◽  
Java Language ◽  
Diffie Hellman ◽  
Diffie Hellman Key Exchange

With the development of information technologies, our environment is surrounded by digital data that transit via networks. When data are important, they become vulnerable to external attacks which can be avoided by using cryptography which provides confidentiality, integrity and availability required to secure digital data transactions such as e- commerce, mobile telephony and Internet. This paper deals with securing data transmitted over a network composed by a server and several clients, where a security platform has been integrated into the server and embedded on an FPGA circuit. The protection of data transfer between clients is provided by hybrid cryptography combining symmetric and asymmetric cryptographies. The security of client-server communication is ensured by the AES protocol and the Diffie-Hellman key exchange protocol. To offer a good management of keys and their sharing, a dedicated system for generating keys is designed to fit with public key infrastructures. This system is a part of the server and has been implemented using JAVA language and executed on a computer. This communication system provides a Graphical User Interface (GUI) offering to clients ease and flexibility in transferring their data.

An Enhanced Authentication Scheme for Internet of Things Based E-Healthcare System

2020 ◽  
Vol 17 (1) ◽  
pp. 246-253 ◽  
Author(s):  
Ravi Raushan Kumar Chaudhary ◽  
Ashish Singh ◽  
Kakali Chatterjee
Keyword(s):  
Mutual Authentication ◽  
Security Analysis ◽  
Authentication Scheme ◽  
Key Generation ◽  
Key Exchange Protocol ◽  
Session Key ◽  
Diffie Hellman ◽  
Healthcare Monitoring ◽  
Diffie Hellman Key Exchange ◽  
Mutual Authentication Protocol

Security is a major challenge in modern IoT based healthcare monitoring systems. It provides many benefits such as critical patient monitoring, remote diagnosis at anytime, anywhere. Hence, security of this data is essential when the healthcare professionals access it. Also, while storing the patients record; it must be kept safe from misuse and modification of data as other devices can easily track it. To prevent this type of threats, we have proposed a mutual authentication protocol to enhance health care security and to resist vulnerable attacks. The proposed scheme used Challenge response protocol for the authentication purpose and the Diffie-Hellman key exchange protocol is used for generation of the session key generation. The security analysis of the proposed scheme shows that the scheme is more secure and resist all the major attacks as compared to other schemes. The Formal verification of this schema also ensures that it resists most probable attacks in this system. The result of the proposed authentication scheme shows that it has low computational and communicational load.

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.

scholarly journals Modification of Traditional RSA into Symmetric-RSA Cryptosystems

Cryptography ◽  
2020 ◽  
pp. 120-128
Author(s):  
Prerna Mohit ◽  
G. P. Biswas
Keyword(s):  
Digital Signature ◽  
Discrete Logarithm ◽  
Prime Numbers ◽  
Public Key ◽  
Key Exchange Protocol ◽  
Factorization Problem ◽  
Rsa Algorithm ◽  
Diffie Hellman ◽  
Diffie Hellman Key Exchange ◽  
Rsa Cryptography

This paper addresses the modification of RSA cryptography namely Symmetric-RSA, which seem to be equally useful for different cryptographic applications such as encryption, digital signature, etc. In order to design Symmetric-RSA, two prime numbers are negotiated using Diffie-Hellman key exchange protocol followed by RSA algorithm. As the new scheme uses Diffie-Hellman and RSA algorithm, the security of the overall system depends on discrete logarithm as well as factorization problem and thus, its security is more than public-key RSA. Finally, some new cryptographic applications of the proposed modifications are described that certainly extend the applications of the existing RSA.

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