Color Image Encryption using AES and RSA
Peyyala Venkata Jaswanth1, Baddam Ranga Reddy2, Marturi Surya Pavan Kumar3, M. Jasmine Pemeena Priyadarsini4

1Peyyala Venkata Jaswanth*, Department of Electronics and Communication Engineering, Vellore Institute of Technology, Vellore, India
2Baddam Ranga Reddy, Department of Electronics and Communication Engineering, Vellore Institute of Technology, Vellore, India
3Marturi Surya Pavan Kumar, Department of Electronics and Communication Engineering, Vellore Institute of Technology, Vellore, India
4M. Jasmine Pemeena Priyadarsini, Department of Electronics and Communication Engineering, Vellore Institute of Technology, Vellore, India

Manuscript received on May 25, 2020. | Revised Manuscript received on June 05, 2020. | Manuscript published on June 30, 2020. | PP: 547-550 | Volume-9 Issue-5, June 2020. | Retrieval Number: E9648069520/2020©BEIESP | DOI: 10.35940/ijeat.E9648.069520
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Information security is an important task on multimedia and communication world. During storing and sharing maintaining a strategic distance from the outsider access of information is the difficult one. There are many encryption algorithms that can provide data security. In this paper two of the encryption algorithms namely AES and RSA are implemented for color images. AES (Advanced Encryption Standard) is a symmetric key block cipher published in December 2001 by NSIT (National Institute of Standards and Technology). RSA (Rivest-Shamir-Adleman) is an asymmetric key block cipher. It uses two separate keys, one for encryption called the public key and other for decryption called the private key. Both the implementation and analysis are done in Matlab. The quality and security level of both the algorithms is analysed based on various criteria such as Histogram analysis, Correlation analysis, Entropy analysis, NPCR (Number of Pixel Change Rate), UACI (Unified Average Changing Intensity), PSNR (Peak Signal-to-Noise Ratio). 
Keywords: AES (Advanced Encryption Standard), NPCR (Number of Pixel Change Rate), PSNR (Peak Signal-to-Noise Ratio), RSA (Rivest-Shamir-Adleman), UACI (Unified Average Changing Intensity)