In the emerging era of Internet, multimedia software and application security of images is of major concern. To offer security to these images encryption is the way for robust security. With Image Encryption it becomes difficult to analyze the image that is communicated over untrusted network. Also it provides security for any unauthorized access. The paper provides an introduction to cryptography and various image encryption techniques are reviewed for 2D images.
Due to internet explosion there has been considerable rise in transmission of data such as tex videos, etc over internet. Here security is required for transmission of data over internet so that data is secure from sender to receiver. Image Encryption plays an important role for image transmission over the Internet and using chaos system prove more secure than existing traditional cryptographic algorithms like AES, RC5, etc. With Image Encryption it becomes difficult to analyze the image that is communicated over untrusted network.. The paper provides an introduction to Chaos system a encryption as well decryption of images using confusion and diffusion methods achieved by arnold cat map and chen respectively. Comparison with existing algorithms is also done. Original ImageFig 1: Model of Image Encryption (Grayscale Image) Encrypted Image Fig 2: Model of Image Decryption (Grayscale Image) Encryption Algorithm with a Key Parameter DecryptionAlgorithm with a Key @ IJTSRD | Available Online @ www.ijtsrd.com | Volume -2 | Issue -Due to internet explosion there has been considerable rise in transmission of data such as tex, images, text, videos, etc over internet. Here security is required for transmission of data over internet so that data is secure from sender to receiver. Image Encryption plays an important role for image transmission over stem prove more secure than existing traditional cryptographic algorithms like AES, RC5, etc. With Image Encryption it becomes difficult to analyze the image that is communicated over untrusted network.. The paper provides an introduction to Chaos system and encryption as well decryption of images using confusion and diffusion methods achieved by arnold cat map and chen respectively. Comparison with
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