Deniable encryption Essays

Othello In the play Othello we are going to examine the role of Emilia. How well was her role as Iago’s wife received, how important was her role. She is the “undoing” of Iago through her honesty. Was her honesty done on purpose to have Iago out of her life for good? Was she right to betray her husband for her lady? Whom did she serve? Herself? Desdemona? Her husband? Does she redeem herself in the end for stealing the handkerchief or did she get what she deserved for betraying her lady

user. In cryptography two types of operation are performed. (i) Encryption and (ii) Decryption. To encrypt and decrypt data a secret key is used. After encryption original data is converted into another format known as cyphertext, which is not easy to understand. In the present era everyone needs fast processing and less space required to store results in computation process as well as security of information. There are many encryption algorithms in which some of these take more computation time, some

What is Unicode SMS? The term “Unicode SMS” refers to text messages sent and received containing characters not included in the default GSM character set. GSM stands for Global System for Mobile Communications (originally “Groupe Spécial Mobile”), and the GSM character set is a collection of the 128 letters (A-Z), numbers (0-9) and symbols (i.e. @, ?, !, &, etc.) most commonly used in mobile communications. Because GSM was developed in Europe and uses 7-bit binary code, it has its limitations. For

Walmart is one of the biggest company in the United States. The company is worth nearly $260 billion, as well as having to managed more than 5,000 stores in 10 countries around the world and employed approximately 1.5 million workers. Unlike others, Walmart developed its purchasing power by eliminating the middlemen and building direct relationship with the suppliers. In addition, the company purchases the products in bulk directly from suppliers at a lower cost and then sell items in stores at

Without human factors, random passwords, system-selected passwords, and long passwords can be considered as secure as compared to passwords based on names, passwords selected by user, and long short passwords. In addition, the habit of forcing users to make changes to password frequently and requisition for users to have different passwords for different entries should be adequate in efforts to fighting unsecure access. However, human factor is an issue that cannot be ignored in the contemporary

Public key cryptography is an asymmetric method that use a pair of keys for encryption: a public key which is used to encrypt data, and private, or secret key is used to decryption. It requires that a person must have a pair of public key and private key. The public key is distributed in the open so that anyone wishing to communicate

The so-called fully homomorphic encryption is considered the Holy Grail of Cryptography. Addition and multiplication are the main building blocks of computers, and the ability to make calculations on encrypted data without decrypting it, would lead to a whole new level of security. So, a company, for example, could send an encrypted database to a cloud computing provider, which would work on that data without decrypting it. If a customer wanted then to perform a search on their personal database

4. Strong collision: given a message M1, it is not possible to find two distinct messages such that h (M1’) = h (M1). The probability of this collision is 2n/2. Hash function is used in message authentication which uses a secret code before hashing so that no one else can modify the message and hash and then can encrypt the message for confidentiality. There are several ways of applying hash for message authentication: 1. One is to apply hash to the message and encrypt it and decrypt it using the

JAYARAJ ANNAPACKIAM CSI COLLEGE OF ENGINEERING NAZARETH DEPARTMENT OF ECE - IV PAPER ON OPTICAL CAMOUFLAGE (Application to IMAGE PROCESSING) BY, J.IMMANUEL V.JEFRINS E MAIL-ID : immanmilky@gmail.com Jefona47@gmail.com ABSTRACT: The abstract of this paper is the working principle of a Harry Potter-like invisibility cloak. In order to make the cloak invisible, Light from all directions travel through the object, rather than hitting it. Because of not being able to interact with light, the hidden

Effective password policy is needed to prevent the passwords from being guessed or cracked. The password policy covers the passwords of all types via passwords of users, systems, databases, applications, etc.., while the password policy can be enforced where they are used frequently and by users, it is difficult to enforce for the passwords used in application to application communication. This article talks about the challenges and possible solution to eliminate embedded passwords in application

Lowry Williams IS 4670 Cybercrime Forensics Unit 5 Assignment 1 Create data recovery plan Data the count may order or give you authorize to seizure a computer so that you may be able to extracted things from the computer’s hard drives. You need to do it in many difference phases you want to insure that the integrity of the computer evidence. You should copies all the files onto a write once only CD- read only memory disks. You may want to “ clone” your computer hard drive, you would do this,

1. Symmetric encryption the keys should be changed frequently. They are shared between two peers, keys should be known only by the two members using them. So confidentiality is extremely important to key exchange. In-band key exchange takes place in the existing and established communication channel. This is however not secured and subject to eavesdropping attacks. Out-of-band key exchange takes place outside the communication channel or pathway, such as a secondary channel through special secured

7.7.1 Data Owners 1. One whose going to access files, one who owns file, who requires his data to be secure. 2. Data owners are responsible for encrypting the data by generating private key. MMCOE, Department of Computer Engineering, 2015-2016 26 Regeneration of code based cloud storage 3. Data/File is encrypted using AES Algorithm. 4. Data owner sends data/file to TPA and takes help of TPA. 5. Data owner is provided with log window to see how TPA is working and get report of the same. 6. Data owner

networks. a) Encryption b) Data mining c) Internet Security d) Decryption Answer:a 2. Which key is used to access the encrypted message? a) Encryption key b) Decryption key c) Primary key d) Foreign key Answer:b 3. Which of the following is a property of good encryption technique? a) Relatively simple for authorized users to encrypt and decrypt data b) Decryption key is extremely difficult for an intruder to determine c) Encryption depends on a parameter of the algorithm called the encryption key d)

Chapter 1 Introduction of Multifactor Authentication Multifactor authentication is a security system that combination more than one form of authentication that created a multilayer of defenses to make it more difficult for an unauthorized person to access a target such as a physical location, network or database as if one of the factor is compromised broken we still got another barrier to breach through it. For example, the Automated Teller Machine (ATM) that need the users to provide their physical

shown in Fig.1 which it uses a cover medium (It used to hold secret data inside), the secret message (the secret data that is to be sent), hiding method (It used to hide secret message inside carrier file and produce the result is Stego-file) and an Encryption algorithm (the procedure is to encrypt Stego-file). The result of the process is the Encrypted Stego file which is the encrypted digital image/video that has the secret message hidden inside. Encrypted Stego-file is sent to the receiver via communication

lettered keyword. This cipher is a form of polyalphabetic substitution. In this cipher we make a key before encrypting the message so that it is a bit more secure. In this method the key shifts the alphabets according to its position. In this encryption the key needs to be known for the person decrypting it because there are about 26n possibilities where n is the number of letters in the string. For example let the code be: “mybirthdayisinjanuary” and let’s take the key to be “math” Plain Text

Padding byte stuffing: A technique to hide data in MP3 Abstract: In today’s world, secrecy is of utmost importance in almost all fields. When one needs to share some sensitive information in public networks, it becomes important that information does not go into wrong hands. Here, information security plays a major role. Sensitive information communication can be secured by using either cryptography or steganography. Steganography is a secret communication method for hiding data in some digital

CHAPTER 1 INTRODUCTION STEGANOGRAPHY Steganography is the art or practice of hiding a message, picture, or document inside another message, picture, or file. The term steganography is derived from the Greek words- stegano means "covered or else protected", in addition graphed signifies "writing" and combining these two Greek words defining it as “covered writing” [1]. Steganography is used to conceal the messages inside other harmless messages in a way that does not allow any enemy to even sense

Our protocol takes two integers decomposed into encrypted bit vectors [a][b] and outputs the greater integer. In this configuration cloud 1 (C1) has the encrypted bit vectors of the integers being compared and cloud 2 (C2) knows the private key. The protocol is as follows in a very concise form. we can say with firm conviction that vector [Y] consist of encrypted zeros at every location except one location which holds the value of encrypted one. This distinct location identifies the first position