Cryptography

INDEX PAGE NO. 1. ABSTRACT 1 2. INTRODUCTION 1 3. CRYPTOGRAPHY 1 4. ENCRYPTION AND DECRYPTION 2 5. CIPHER 2 6. HISTORICAL CRYPTOGRAPHY 3 7. WARDRIVEN CRYPTOGRAPHY (World War I) 7 8. WARDRIVEN CRYPTOGRAPHY (World War II) 9 9. MORDERN ENCRYPTION 11 10. SYMMENTRIC KEY ENCRYPTION AND ITS IMPLEMENTATION 12 11. ASYMMENTRIC KEY ENCRYPTION 14 12. RSA ENCRYPTION 15 13. STEGANODRAPHY 17 14. FUTURE

PARALLEL COMPUTING IN CRYPTOGRAPHY A Literature Review Presented to Sharmin Khan Department of Computer Science San Jose State University In Partial Fulfillment of the Requirements for the Class CS 200W By Rachel Gonsalves May 2016 Abstract In today’s world a lot of data is being exchanged via the internet. Sensitive data such as official documents, bank details, credit card information, as well as personal information is being sent online. To maintain the confidentiality, integrity

Quantum Cryptography is the newest technology in the field of Encryption and proved to be most secure as of now. In this paper we will discuss what quantum cryptography is and what makes it most secure and unbreakable. Introduction All our classical computer cryptography methods are basically based on some mathematical calculations which are quiet easy to implement in one direction but very difficult to process in the other direction. As RSA(Rivest-Shamir-Adleman) algorithm which is one of the

On the Development of Quantum Computers and Cryptography In 2010, the United States government, after accessing encrypted files by means of physical intervention, exposed ten Russian sleeper agents; in 2013, the United States government, without any means of physical intervention, surreptitiously collected and promptly decrypted many previously encrypted (Wood). Within this decade, concerns regarding the dubious security of contemporary cryptography will begin to emerge as the secrets of quantum

Abstract Visual Cryptography is a type of cryptographic scheme used to encode a secret image into shadow images called shares or layers such that it can’t be decrypted using the human visual system unless certain qualified subsets of the shares are used. The secret image is encoded without the use of any cryptographic computations. In this paper we will discuss the basic model of visual cryptography and the extended model; using the k out of n scheme. Keywords: Visual Cryptography, Extended Visual

Hybrid cryptography using symmetric key encryption Sean laurel rex bashyam1, karthik Shankar2 ,Saitheja kadiyala3 Dept. of electrical engineering1,3 Dept. of computer science2 {skadiyal ,sbashyam ,kshankar}@my.bridgeport.edu professor Abdel-shakour Abuzneid Dept. of computer engineering University of bridgeport Bridgeport , CT abuzneid@bridgeport.edu Abstract— Crucial methods are employed to deploy the majority networks to acquire the data. Modern improvements stores, transfer data

High level encryption or cryptography is used in a number of applications ranging from those which impact national security to those which are more mundane. Essentially, cryptography is the methodology of encoding information so that one’s privacy is ensured. This is particularly important when it comes to transactions which occur over the Internet. The risk of individuals gaining access to personal information or information which is critical to a country or a nation over the Internet is a very

Before approaching Claude Shannon’s contribution to Cryptography, one must look at his prior work in particular in the field of information theory, a field he theorized in his 1948 paper A Mathematical Theory of Information. Shannon introduced a lot of the ideas that were mentioned and developed in this revolutionary paper to the scientific community in his 1945 paper entitled A Mathematical Theory of Cryptography. Indeed, during the Second World War, Shannon decided to join the Bell Labs, a research

Contents 1 Cryptography 2 Introduction 2 Methods of encryption or cryptography. 2 Symmetric 2 Asymmetric 2 Operation and Working of Both Methods 3 Ingredients of symmetric encryption 3 Working of symmetric cryptography (Graphical Representation) 4 Ingredients of Asymmetric cryptography 4 Working principal of Asymmetric encryption (Graphical representation) 5 Strengths and Weaknesses of Both 6 Strength of Symmetric Encryption 6 Strength of Asymmetric Encryption 6 Weakness of symmetric encryption 6

5 Ways to Measure the Quality of Your Crypto Introduction Cryptography is definitely become a more mainstream topic today. Almost every device in this world is connected to the internet and sharing information. At the same time of the increasing of number in the device, the number of sensitive data in the information shared between devices, application, and server is also increasing in a larger scale. That information must be protected, so that the sensitive data will remain private. The dominance