Dual-Layer Video Encryption using RSA Algorithm

Abstract

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.

Coding Unit-Based Region of Interest Encryption in HEVC/H.265 Video

“…Unlike whole-frame encryption, which protects the entire region, ROI encryption deals with a specific area, including privacy, so the performance related to deidentification, defined by such metrics as PSNR and SSIM is important. However, although there are various algorithms for video encryption, such as RC6 [36], RSA [37], blowfish [38], and puzzle [39], existing studies have only dealt with AES-CFB and chaos-based stream cipher, as mentioned. Moreover, the proposed method has time to apply more complex encryption algorithms by improving the encryption speed relative to traditional methods.…”

Data Encryption Pada File Video Menggunakan Algoritma Blowfish Berbasis Android

“…Terdapat banyak penelitian tentang kriptografi, diantaranya Algoritma berbasis AES yang dimodifikasi untuk enkripsi video MPEG [5], Enkripsi Video Lapisan Ganda menggunakan Algoritma RSA [6], Skema enkripsi video menggunakan teknologi enkripsi hybrid [7], Enkripsi Untuk Pengkodean Video Efisiensi Tinggi Dengan Kemampuan Adaptasi Video [8], Implementasi Teknik Enkripsi dan Dekripsi Di File Video Menggunakan Algoritma Blowfish [9], Implementasi Algoritma Blowfish dan Metode Least Significant Bit Insertion Pada Video Mp4 [10]. Walaupun metode ini memiliki keamanan yang baik, namun ada beberapa hal yang harus dikorbankan yaitu lamanya proses enkripsi.Selain itu, meskipun ada yang menggunakan algoritma yang sama seperti penelitian ini yaitu algoritma Blowfish, penelitian tersebut hanya digunakan untuk peralatan komputer saja.…”

Multimedia Data Secure Transmission: A Review

“…2. Design and implementation of a network video-encryption system based on STM32 are described in DVEMD [26]. The goal of this paper is to ensure the security of network video surveillance data and to prevent criminals from accessing and stealing valuable information.…”