Please send the ppt for multi level authentication technique for accessing cloud services ....etc

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ppt on image authentication techniques consisting of above 20 slides
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get ppt on controlled data hiding technique for color image authentication in frequency domain
ppt on controlled data hiding technique for color image authentication in frequency domain ....etc

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1. INTRODUCTION



1.1 INTRODUCTION

Since the rise of the Internet one of the most important factors of information technology and communication has been the security of information. Cryptography was created as a technique for encrypt and decrypt data in order to keep the message secret. Unfortunately it is sometimes not enough to keep the contents of a message secret, it may also be necessary to keep the existence of the message secret. The technique used to implement this, is called steganography.

Steganography is th ....etc

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PRESENTED BY:
SUFYAN AHMED KHAN


STEGO- HUNTER: ATTACKING LSB BASED IMAGE STEGANOGRAPHIC TECHNIQUE
ABSTRACT
Steganography is the process of hiding secret information in a cover image. Our aim is to test a set of images for statistical artifacts due to message embedding in color images using LSB insertion method and to find out, which images out of them are likely to be stego. In a natural uncompressed image (i.e. 24bit BMP) each image is represented by three color channels (Red, Green and Blue), each of ....etc

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Image Steganography Technique Based on Wavelet Transform
In the technique of steganography, information is concealed in unremarkable cover media so as not to arouse an eavesdropper’s suspicion. It is widely used in the field of information security. The strengths and counter measures are
driven by weaknesses and vulnerabilities. There are easy to use communication channels for steganography. In this article, a modified high-capacity image steganography technique that depends on wavelet transform is described which has acceptable le ....etc

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i'm a final year ece student i need some basic idea to do the above mentioned title and what are the tools needed? and some idea to do it! ....etc

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Image Steganography Schemes For Image Authentication And Verification




STEGANOGRAPHY DEFINED



The word steganography is derived from the Greek words “stegos” meaning “cover” and “grafia” meaning “writing” defining it as “covered writing.
There exist two types of materials in steganography: message and carrier. Message is the secret data that should be hidden and carrier is the material that takes the message in it.


TEXT STEG ....etc

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An image defined in the real world is considered to be a function of two real variables say x,y.
Before going to processing an image, it is converted into a digital form. Digitization includes sampling of image and quantization of sampled values.
After converting the image into bit information, processing is performed.
This processing technique may be,
Image enhancement
Image reconstruction
Image compression
Image enhancement refers to accentuation, or sharpening, of image features such as boundaries.
Image restoration is con ....etc

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ppt on controlled data hiding technique for color image authentication in frequency domain ....etc

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