Cryptography

In the above Fig.1 text data is encrypted using AES algorithm. The message digest is calculated using SHA-1 algorithm which is calculated for message integrity. The encrypted data is embedded in video which consists of audio and images which is called as video steganography. Steganography is the process of hiding the text data in any cover media such as audio, video, images. 3. PROBLEM DEFINITION 1. In previous technique the data was hided in image due to which only less amount of data was made

which is known as cover and grafia which is known as writing which is combinedly known as “covered writing”. It is also defined as the art and science of communication in such a way that it hides the existence of the communication. In contrast to cryptography, steganography hides message inside other harmless message in such a way that the enemy connect detect that there is a hidden message inside the cover message. In order to have a clear understanding about steganography let us look at the following

Since from the earlier times, people are bothered about how to securely transmit secret messages. Both Cryptographic techniques and steganographic techniques are used to achieve this aim. In cryptography, the existence of the encrypted message is visible to the world, whereas in Steganography, only the sender and the receiver know the existence of the message. Darrel Hankerson, Alfred Menezes, and Scott Vanstone explained the various arithmetic behind elliptic curves and addresses some issues that

analog computer and wrote his master’s thesis, which later influenced his award winning paper, “A Symbolic Analysis of Relay and Switching Circuits” (Gallager). This contribution led him to join Bell Labs that worked on fire control systems and cryptography during World War II for the National Defense Organization. He devoted the rest of his life to researching communication and information theory and because of his efforts he was named the father of information technology by his peers. Shannon’s

The purpose of the secure update system is to prevent malicious users from installing and running a firmware that is not approved by the manufacturer. Verifying the firmware means validating that this holds that the firmware running on the system is the one installed by the manufacturer. Following is a summary of analysis of various classes of algorithms that might be suitable for firmware verification as stated by 3.1.1 Checksum Algorithms To ensure that data sent over a communications channel

When a message is in its original form it is known as plaintext or cleartext and the process that involves masking the text to hide the content is known as encryption. Once a message is encrypted it is referred to as ciphertext . Cryptography or crypto for short has always served the same purpose of encrypting information for reasons of privacy, deception, or security. Cryptographic methodologies could date back to the ancient Egyptian era where standard hieroglyphs were altered to mask true

Abstract Data security has been a prevalent issue and there were many academic and institutional researches that are carried out to identify potential solutions that could help in mitigating the risks of data security challenges. Cryptography has been one of the techniques that has been adapted for data security management, and in this research review, the focus has been on one of the new cryptographic algorithm that has been proposed for file transfers and the paper has been reviewed

The proposed algorithm will ensure the secure communication with authenticated devices. The analysis results shows that the scheme works better than the common existent schemes with better utilization of available memory. Keywords— Elliptic Curve Cryptography,

delineated, and both examples and experimental aftermath of implementation of the counseled method are endowed for reconstruction on the Cartesian lattice of size 2r 2. [53] Xiaoheng Deng et al, 2013, they counsel an enhanced picture encryption algorithm established on hyper chaotic arrangement and permutation-diffusion structure. In the permutation procedure, the algorithm introduces plain-text feedback mechanism that makes the permutation result not merely associated alongside the chaotic sequences

This paper discusses the history of data encryption technology. It also touches on several aspects of data encryption technology. Furthermore, an attempt will be made to answer several key questions like what is data encryption technology (DET). It will also detail some of the history of DET, how DET affects the lives of people in America, and some of the future implications of this technology. DET can be defined as the translation or changing of information/data into some form of a secret code