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A New Chaotic Algorithm for Image Encryption


Posted by: seminar class
Created at: Saturday 09th of April 2011 03:55:18 AM
Last Edited Or Replied at :Saturday 09th of April 2011 03:55:18 AM
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w. The key image is chosen as w 0.8 .Image fusion is first step of image encryption. The parameters are selected as a 0.3 ,b 1.4.
The secret keys to change the pixel values of the original fusion-image are x0=0.1,x1=0.2. Since the chaotic systems are deterministic, the receiver can reconstruct the same fusion-image exactly using the secret keys.
The antiprocess of image fusion is described as:
O(i,j)=1/w*(E(i,j)-K(i,j))+K(i,j)
0<=w<=1
Where w is parameter, O(i, j) is the pixel values of the original-image, E(i, j) is the pixel..................[:=> Show Contents <=:]



VISUAL CRYPTOGRAPHIC STEGANOGRAPHY IN IMAGES


Posted by: seminar class
Created at: Tuesday 05th of April 2011 02:18:33 AM
Last Edited Or Replied at :Monday 11th of February 2013 12:12:44 AM
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00110 11000101 00001100)
(11010010 10101100 01100011)
 Cryptography and steganography combined systems can be created
THE VISUAL CRYPTOGRAPHIC STEGANOGRAPHY SYSTEM
 Advanced system of encrypting data
 Visual steganography- Secure, implemented in image files
 Concept of multiple cryptography
 Only jpeg image will be used
SYSTEM FLOW CHART
THE REFERENCE DATABASE

 In order to provide higher security levels the algorithm is designed to use a reference database as shown in the figure.
Encryption Algorithm
 The message will first be encrypte..................[:=> Show Contents <=:]



image scrambling


Posted by: seminar class
Created at: Saturday 02nd of April 2011 06:04:35 AM
Last Edited Or Replied at :Saturday 02nd of April 2011 06:04:35 AM
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rhead etc . It is not a very new idea and many researchers have proposed different types of such encryption. In chaotic key-based algorithm, image pixels are rearranged based on the time series . This method is very simple, but is weak to the chosen/known-plaintext attack using only one plain image . Scharinger proposed chaotic Kolmogorov flow based image encryption . The whole image is taken as a single block in this scheme, and permuted through a key-controlled chaotic system based on Kolmogorov flow. In order to confuse the data, substitution is applied, which alters the statist..................[:=> Show Contents <=:]



A Survey of Encryption Algorithms


Posted by: project topics
Created at: Tuesday 18th of January 2011 01:22:47 AM
Last Edited Or Replied at :Tuesday 18th of January 2011 01:22:47 AM
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s the two types of encryption algorithms available, which are symmetric and public-key. These two types are compared based on how keys are distributed and implementation. Next, the only known algorithm that is considered perfectly secure, a one-time pad, is discussed and why it is rarely used in spite of its strong security. A chapter devoted to key management follows this. A separate section is devoted to key management, because even if an algorithm is considered tightly secure it becomes weak if the key used with the algorithm is improperly managed. The third chapter is devoted to the Data E..................[:=> Show Contents <=:]



Compact and EFficient encryption and decryption


Posted by: project report helper
Created at: Tuesday 19th of October 2010 11:51:46 PM
Last Edited Or Replied at :Tuesday 19th of October 2010 11:51:46 PM
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tudied low area encryptiononly
architectures and only a few papers have investigated
low area encryption/decryption structures.
However, in practice, only a few applications need
throughput up to 20 Gbps while exible and low cost
encryption/decryption solutions are needed to protect
sensible data, especially for embedded hardware applications.
This paper proposes an efcient solution
to combine Rijndael encryption and decryption in one
FPGA design, with a strong focus on low area constraints.
The proposed design ts into the smallest Xilinx
FPGAs3, deals with data streams of 208 Mb..................[:=> Show Contents <=:]



ORTHOGONAL DATA EMBEDDING FOR BINARY IMAGES IN MORPHOLOGICAL TRANSFORM DOMAIN- A HIGH


Posted by: naradasu74
Created at: Tuesday 02nd of March 2010 12:17:57 AM
Last Edited Or Replied at :Monday 13th of December 2010 02:51:57 AM
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Pls send me the base paper and some ppts on thi..................[:=> Show Contents <=:]



digital image processing projects


Posted by: computer science technology
Created at: Wednesday 27th of January 2010 12:36:28 PM
Last Edited Or Replied at :Thursday 09th of February 2012 11:10:55 PM
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ermarking system
h) Image denoising using D..................[:=> Show Contents <=:]



image encryption and digital water marking


Posted by: frozenwars
Created at: Friday 30th of October 2009 02:33:54 AM
Last Edited Or Replied at :Friday 30th of October 2009 04:15:00 AM
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hi guys ,
i wan..................[:=> Show Contents <=:]



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