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Efficient Hybrid Image Cryptosystem using ECC and Chaotic Map
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 29 - Number 3 |
| Year of Publication: 2011 |
| Authors: Kamlesh Gupta, Sanjay Silakari |
10.5120/3548-4866
|
Kamlesh Gupta, Sanjay Silakari . Efficient Hybrid Image Cryptosystem using ECC and Chaotic Map. International Journal of Computer Applications. 29, 3 ( September 2011), 1-13. DOI=10.5120/3548-4866
Abstract
Encryption is used to securely transmit data in open networks. Each type of data has its own features; therefore different techniques should be used to protect confidential image data from unauthorized access. The asymmetric cryptography doesn’t fit for transmission of Images, since it takes more time for encryption at the source and likewise for decryption at the destination. We are therefore using hybrid cryptosystem, In this paper, we designed an algorithm to generate diffusion template using 3D standard map and rotated image by using vertically and horizontally red and green plane of the input color image. We then shuffled the red, green, and blue plane by using 3D Cat map and Standard map. Finally the Image is encrypted by performing XOR operation on the shuffled image and diffusion template. The objectives of this new design includes: (1) to efficiently extract good pseudorandom sequences from a cascading of 3D cat and Standard map for color image and (2) to simultaneously perform permutation and diffusion operations for fast encryption. The symmetric key cryptography totally depends on the session key, we are using ECC algorithm for session key exchange in secure manner.
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