Hiding the Secret image to Confuse the Hackers in Cloud Storage

What is Stenography

Hiding the image or data inside the original information or encrypted information to ensure higher security the process called steganography is developed.

Coveless Stenography

In the proposed system, design of two level image based plain coverless stenography is being implemented. The proposed system uses the DWT in a iterative fashion, in which the input image is filtered into 2-level transform, a secret image is hided inside the original image, the advantage of the proposed system is the encrypted image resembles like the original image which will not show the hided secret light weight encryption strategy. The receiver with the same secret image as key with 2-level decryption transform of I-DWT reproduce the original info.

What we hide

In stenography, normally image , text  data, numbers, binary patterns can be hidden . Sometimes in few applications a voice data can also be hided inside the pixels

How secure the System is 

The stenography system is tend to be more secure since the there is a strong interconnected link which is understandable by the source and target system only. The intermediate hackers tend to fail attaining the hidden info using simple techniques.

Software Used

MATLAB 2018a

Style: Command Line Modeling

Applications

·         Light weight cryptography

·         Confidential Info transferring

·         High security in IoT Networks

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Chip design with Microwind Tools

Design and development of Optical Transconductance amplifier using Microwind

A transconductance amplifier is a circuit in which it converts an input of certain level of voltage to an output of same equivalent level of current. It is also called as current to voltage level converter or I to V conversion system. The circuit is named as transconductance because the efficiency of the amplifier is measured in terms of conductance.OTA - Transconductance amplifiers are classified into two types. They are transconductance amplifiers with free floating load circuit and transconductance amplifiers with common ground connected load circuit. The design of OTA in the microwind tool is simulated here and results are displayed in the video. 

The Voltage Current Characteristics are also shown in the simulation that the evaluation of the OTA with respect to changes in resistance and capacitence are discussed. The 3D  structure of amplifier after implementing it into the Silicon wafer is evaluated.

OTA Amplifier Model

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