Joint image encryption and compression scheme based on IWT and SPIHT

2017 ◽  
Vol 90 ◽  
pp. 254-274 ◽  
Author(s):  
Miao Zhang ◽  
Xiaojun Tong
Keyword(s):  
Image Encryption ◽  
Compression Scheme

Comments on “A Novel Image Encryption-Compression Scheme Using Hyper-Chaos and Chinese Remainder Theorem”

2015 ◽  
Vol 743 ◽  
pp. 333-337 ◽  
Author(s):  
Sen Bai ◽  
Gui Bin Zhu ◽  
Xiao Yong Ji
Keyword(s):  
Theoretical Analysis ◽  
Image Encryption ◽  
Compression Ratio ◽  
Chinese Remainder Theorem ◽  
Experimental Results ◽  
Compression Scheme ◽  
Plain Image

In a recent paper by Zhu and Zhao [1], an image encryption-compression scheme (IECS) based on hyper-chaos and Chinese remainder theorem (CRT) is proposed. This comment points out that in [1] there are some errors in two important algorithms and the performance of the proposed IECS is severely overestimated. It is shown that the IECS presented in paper [1] can be easily discredited and ipso facto cannot be used for compressing the plain image with a given compression ratio. Both theoretical analysis and experimental results are given to support our conclusion.

scholarly journals AN APPROACH TO IMAGE COMPRESSION AND ENCRYPTION

2012 ◽  
pp. 146-149
Author(s):  
ABDUL RAZZAQUE ◽  
NILESHSINGH V. THAKUR
Keyword(s):  
Image Compression ◽  
Image Encryption ◽  
Encryption Scheme ◽  
Secret Key ◽  
Image Size ◽  
Compression Scheme ◽  
Unauthorized Access ◽  
Symmetric Key ◽  
Symmetric Key Cryptography ◽  
Image Compression And Encryption

Image compression scheme proposed by researchers have no consideration of security. Similarly image encryption scheme proposed by the authors have no consideration of image size. In this paper a simultaneous image compression and encryption scheme is discussed. The order of the two processes viz. compression and encryption is EC i.e. image encryption is performed first then the image compression is applied. For image encryption a symmetric key cryptography multiplicative cipher is used. Similarly for compression Discrete Cosine Transform is used. Image Compression is concerned with minimizing the number of bit required to represent an image. The compression can be lossless or lossy. Image Encryption is hiding image from unauthorized access with the help of secret key that key can be private or public.

A linear quadtree compression scheme for image encryption

1997 ◽  
Vol 10 (4) ◽  
pp. 279-290 ◽  
Author(s):  
Henry Ker-Chang Chang ◽  
Jiang-Long Liu
Keyword(s):  
Image Encryption ◽  
Compression Scheme

A joint color image encryption and compression scheme based on hyper-chaotic system

2016 ◽  
Vol 84 (4) ◽  
pp. 2333-2356 ◽  
Author(s):  
Xiao-Jun Tong ◽  
Miao Zhang ◽  
Zhu Wang ◽  
Jing Ma
Keyword(s):  
Image Encryption ◽  
Chaotic System ◽  
Color Image ◽  
Color Image Encryption ◽  
Compression Scheme

Implementation Color-Images Cryptography Using RSA Algorithm

2017 ◽  
Vol 7 (11) ◽  
pp. 181
Author(s):  
Ali Saleh Al Najjar
Keyword(s):  
Information Security ◽  
Image Encryption ◽  
Color Images ◽  
Public Key ◽  
Open Channels ◽  
Image Security ◽  
Rsa Algorithm ◽  
The Media ◽  
Encrypted Images ◽  
Difficult Issue

Absolute protection is a difficult issue to maintain the confidentiality of images through their transmission over open channels such as internet or networks and is a major concern in the media, so image Cryptography becomes an area of attraction and interest of research in the field of information security. The paper will offer proposed system that provides a special kinds of image Encryption image security, Cryptography using RSA algorithm for encrypted images by HEX function to extract HEX Code and using RSA public key algorithm, to generate cipher image text. This approach provides high security and it will be suitable for secured transmission of images over the networks or Internet.

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