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diffie hellman algorithm implementation in matlab

Introduction

The article is devoted to the development of the library that implements the Diffie Hellman cryptographic algorithm of key exchange. The library appeared as a result of the necessity to use the Diffie Hellman algorithm without the involvement of any third-party libraries.

Diffie Hellman algorithm is an algorithm that allows two parties to get the shared secret key using the communication channel, which is not protected from the interception but is protected from modification.
....etc

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Implementation of Diffie-Hellman Key Exchange on
Wireless Sensor Using Elliptic Curve Cryptography
v


Samant Khajuria, Henrik Tange
Wirelesscenter-CTIF-Copenhagen
Copenhagen University College of Engineering & Aalborg University
Lautrupvang 15, 2750 Ballerup, Copenhagen, Denmark


abstract

This work describes a low-cost Public key Cryptography
(PKC) based solution for security services such as
authentication as required for wireless sensor networks. We
have implemented a software approach using Ellip ....etc

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diffie hellman key exchange code

Diffie Hellman Key Exchange Algorithm (Java)
import java.util.*;
class DiffieHellman
{
public static void main(String args)
{
Scanner sc = new Scanner(System.in);
System.out.println( Enter the value of Xa & Xb );
int Xa=sc.nextInt();
int Xb=sc.nextInt();
System.out.println( Enter a Prime no. p );
int p=sc.nextInt();
System.out.println( Enter Primitive Root a, such that a

int a=sc.nextInt();
int Ya=(int)((Math.pow(a,Xa))%p);
int Yb=(int)((Math.pow(a,Xb))%p);
int Ka=(int)((Math.pow(Yb,Xa))%p);
int Kb ....etc

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This project studies the mathematics of elliptic curves, starting with their
derivation and the proof of how points upon them form an additive abelian
group. We then work on the mathematics neccessary to use these groups
for cryptographic purposes, specifically results for the group formed by an
elliptic curve over a finite field, E(Fq). We examine the mathematics behind
the group of torsion points, to which every point in E(Fq) belongs, and
prove Hasse s theorem along with a number of other useful results. We finish ....etc

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By carefully measuring the amount of time required to perform private key operations, attackers may be able to find fixed Diffie-Hellman exponents, factor RSA keys, and break other cryptosystems.Against a vulnerable system, the attack is computationally inexpensive and often requires only known ciphertext. Actual systems are potentially at risk, including cryptographic tokens, network-based cryptosystems, and other applications where attackers can make reasonably accurate timing measurements. Techniques for preventing the attack for RSA and Dif ....etc

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ppt on new aka protocol of 3g based on diffie-hellman algorithm iee paper 2010 ....etc

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implementation code in matlab for diffie hellman

Introduction

The article is devoted to the development of the library that implements the Diffie Hellman cryptographic algorithm of key exchange. The library appeared as a result of the necessity to use the Diffie Hellman algorithm without the involvement of any third-party libraries.

Description of the Algorithm

Diffie Hellman algorithm is an algorithm that allows two parties to get the shared secret key using the communication channel, which is not protected from the interception but is ....etc

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ns2 coding for the implementation of eliptic curve diffie hellman key exchange between nodes in manet

Abstract

Elliptic curve Diffie Hellman (ECDH) is an anonymous key agreement protocol that allows two parties, each having an elliptic curve public private key pair, to establish a shared secret over an insecure channel. This shared secret may be directly used as a key, or to derive another key which can then be used to encrypt subsequent communications using a symmetric key cipher. It is a variant of the Diffie Hellman protocol us ....etc

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