Encryption Algorithm Using Graph Theory

Algorithm Design Using Spectral Graph Theory

Spectral graph theory is the interplay between linear algebra and combinatorial graph theory. Laplace’s equation and its discrete form, the Laplacian matrix, appear ubiquitously in mathematical physics. Due to the recent discovery of very fast solvers for these equations, they are also becoming increasingly useful in combinatorial optimization, computer vision, computer graphics, and machine le...

FPGA Can be Implemented Using Advanced Encryption Standard Algorithm

This paper mainly focused on implementation of AES encryption and decryption standard AES-128. All the transformations of both Encryption and Decryption are simulated using an iterativedesign approach in order to minimize the hardware consumption. This method can make it avery low-complex architecture, especially in saving the hardware resource in implementing theAES InverseSub Bytes module and...

Cryptanalysis of GSM encryption algorithm A5/1

The A5/1 algorithm is one of the most famous stream cipher algorithms used for over-the-air communication privacy in GSM. The purpose of this paper is to analyze several weaknesses of A5/1, including an improvement to an attack and investigation of the A5/1 state transition. Biham and Dunkelman proposed an attack on A5/1 with a time and data complexity of 239.91and 221.1, ...

A New Fast Data Encryption Algorithm (FDE)

Email Encryption using RC4 Algorithm

In the communication age, in the daily life people constantly uses communication tools that are e-mail marketing, instant messaging, social networking, search engines, bookmarking systems, affiliate systems, print media and direct mail. These tools are used as an internet communication. However as a result of widespread of internet usage, security problems have become more important year by yea...