Comparison of MPEG video encryption algorithms

Potdar, Ujwala; Talele, Kiran; Gandhe, S. T.

doi:10.1145/1523103.1523163

Cited by 6 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first coefficient, namely DC, has the most energy and the remaining coefficients, namely AC, have the details of the frame [14,20]. In this mode, the sign of AC coefficients is encrypted, then the inversion of both quantization and DCT transform is done, and finally the encrypted frame is depicted.…”

Section: Sign Encryption Of Dct Transformmentioning

confidence: 99%

Encryption of Video Main Frames in the Field of DCT Transform Using A5/1 and W7 Stream Encryption Algorithms

Bahrami

Naderi

2014

Arab J Sci Eng

View full text Add to dashboard Cite

Recently, creating security in multimedia systems involving video has become one of the main needs in commercial and military usages. The most important traits of video frames are simultaneousness of frames and high volume of information. Considering these features, A5/1 and W7 stream ciphers are used for video main frames in the field of selective encryption of each DCT transform coefficient.In addition, a suitable method is expressed in order to select the encryption method of DCT transform coefficients by the stream algorithms. The simulation results of MAT-LAB software show that this method is suitable for multimedia security in terms of both security and execution speed of the algorithm.

show abstract

Section: Sign Encryption Of Dct Transformmentioning

confidence: 99%

Encryption of Video Main Frames in the Field of DCT Transform Using A5/1 and W7 Stream Encryption Algorithms

Bahrami

Naderi

2014

Arab J Sci Eng

View full text Add to dashboard Cite

show abstract

“…In terms of simple length-preserving encryption algorithms on DCT-based images and videos, pseudo-randomly toggling DC and/or AC coefficient signs as proposed for example by Potdar, Talele, & Gandhe (2009), or Bhargava, Shi, & Wang (2003 is frequently used. However, the attack complexity for breaking such themes is significantly lower than in our approach as we encrypt multiple bits per coefficient instead of only one (the sign bit).…”

Section: Introductionmentioning

confidence: 99%

Bitstream-Based JPEG Encryption in Real-time

Auer

Bliem

Engel

et al. 2013

International Journal of Digital Crime and Forensics

View full text Add to dashboard Cite

We propose a framework to encrypt Baseline JPEG files directly at bitstream level, i.e., without the need to recompress them. Our approach enables encrypting more than 25 pictures per second in VGA resolution, allowing real-time operation in typical video surveillance applications. In addition, our approach preserves the length of the bitstream while being completely format-compliant. Furthermore, we show that an attack on the encryption process, which partly relies on AES, is practically infeasible.

show abstract

“…In terms of simple length-preserving encryption algorithms on Discrete Cosine Transform (DCT)-based images and videos, pseudo-randomly toggling DC and/or AC coefficient signs as proposed e.g. in [12,1] is frequently used. However, the attack complexity for breaking such themes is significantly lower than in our approach as we encrypt multiple bits per coefficient instead of only one (the sign bit).…”

Section: Introductionmentioning

confidence: 99%

Length-preserving bit-stream-based JPEG encryption

Unterweger

Uhl

2012

Proceedings of the on Multimedia and Security

View full text Add to dashboard Cite

We propose a new method to encrypt baseline JPEG bit streams by selective Huffman code word swapping and coefficient value scrambling based on AES encryption. Furthermore, we show that our approach preserves the length of the bit stream while being completely format-compliant. In contrast to most existing approaches, no recompression is necessary as the encryption is applied directly to the bit stream. In addition, we assess the effort required for brute-force and known-plaintext attacks on pictures encrypted with our approach, showing that both are practically infeasible.

show abstract

Comparison of MPEG video encryption algorithms

Cited by 6 publications

References 3 publications

Encryption of Video Main Frames in the Field of DCT Transform Using A5/1 and W7 Stream Encryption Algorithms

Encryption of Video Main Frames in the Field of DCT Transform Using A5/1 and W7 Stream Encryption Algorithms

Bitstream-Based JPEG Encryption in Real-time

Length-preserving bit-stream-based JPEG encryption

Contact Info

Product

Resources

About