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Dual-Layer Video Encryption using RSA Algorithm

International Journal of Computer Applications
© 2015 by IJCA Journal
Volume 116 - Number 1
Year of Publication: 2015
Aman Chadha
Sushmit Mallik
Ankit Chadha
Ravdeep Johar
M. Mani Roja

Aman Chadha, Sushmit Mallik, Ankit Chadha, Ravdeep Johar and Mani M Roja. Article: Dual-Layer Video Encryption using RSA Algorithm. International Journal of Computer Applications 116(1):33-40, April 2015. Full text available. BibTeX

	author = {Aman Chadha and Sushmit Mallik and Ankit Chadha and Ravdeep Johar and M. Mani Roja},
	title = {Article: Dual-Layer Video Encryption using RSA Algorithm},
	journal = {International Journal of Computer Applications},
	year = {2015},
	volume = {116},
	number = {1},
	pages = {33-40},
	month = {April},
	note = {Full text available}


This paper proposes a video encryption algorithm using RSA and Pseudo Noise (PN) sequence, aimed at applications requiring sensitive video information transfers. The system is primarily designed to work with files encoded using the Audio Video Interleaved (AVI) codec, although it can be easily ported for use with Moving Picture Experts Group (MPEG) encoded files. The audio and video components of the source separately undergo two layers of encryption to ensure a reasonable level of security. Encryption of the video component involves applying the RSA algorithm followed by the PN-based encryption. Similarly, the audio component is first encrypted using PN and further subjected to encryption using the Discrete Cosine Transform. Combining these techniques, an efficient system, invulnerable to security breaches and attacks with favorable values of parameters such as encryption/decryption speed, encryption/decryption ratio and visual degradation; has been put forth. For applications requiring encryption of sensitive data wherein stringent security requirements are of prime concern, the system is found to yield negligible similarities in visual perception between the original and the encrypted video sequence. For applications wherein visual similarity is not of major concern, we limit the encryption task to a single level of encryption which is accomplished by using RSA, thereby quickening the encryption process. Although some similarity between the original and encrypted video is observed in this case, it is not enough to comprehend the happenings in the video.


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