image encryption and decryption using aes in matlab ppt
#1

Hi am tina i would like to get details on image encryption and decryption using aes in matlab ppt ..My friend Jyoti said image encryption and decryption using aes in matlab ppt will be available here and now i am living at .....india.... and i last studied in the college/school ....nit..... and now am doing .reseacrch...i need help on .....it.
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#2
In cryptography the only need of high importance is
security of data[1].Few ways to achieve it is through public
key cryptography(PKC),secret key cryptography(SKC) and
using hash functions. Generic PKC employs two keys that
are mathematically related although knowledge of one key
does not allow someone to easily determine the other key.
One key is used to encrypt the plaintext and the other key is
used to decrypt the ciphertext(encrypted data). Because a
pair of keys are required, this approach is also called
asymmetric cryptography. The important point here is that
it does not matter which key is applied first, but that both
keys are required for the process to work. In SKC, a single
key is used for both encryption and decryption. Sender uses
the key (or some set of rules) to encrypt the plaintext and
sends the ciphertext to the receiver. The receiver applies
the same key to decrypt the message and recover the
plaintext. Because a single key is used for both functions,
SKC is also called symmetric encryption. With this form of
cryptography, it is obvious that the key must be known to
both the sender and the receiver; that, in fact, is the secret.


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.pdf   image encryption and decryption.pdf (Size: 377.75 KB / Downloads: 0)
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#3
Abstract

With the fast progression of data exchange in electronic way, information security is becoming more important in data storage and transmission. Because of widely using images in industrial process, it is important to protect the confidential image data from unauthorized access.This paper presents the design of a 128 bit encoder using AES Rijndael Algorithm for image encryption. The AES algorithm defined by the National Institute of Standard and Technology(NIST) of United States has been widely accepted. Optimized and Synthesizable VHDL code is developed for the implementation of 128- bit data encryption and process. Xilinx ISE9.2i software is used for synthesis.Timing simulation is performed to verify the functionality of the designed circuit
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