Design and ARM-Based Implementation of Bitstream-Oriented Chaotic Encryption Scheme for H.264/AVC Video

In actual application scenarios of the real-time video confidential communication, encrypted videos must meet three performance indicators: security, real-time, and format compatibility. To satisfy these requirements, an improved bitstream-oriented encryption (BOE) method based chaotic encryption fo...

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Autores principales: Zirui Zhang, Ping Chen, Weijun Li, Xiaoming Xiong, Qianxue Wang, Heping Wen, Songbin Liu, Shuting Cai
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/20e79b6f029b4a55a2f8c3206fe9f892
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spelling oai:doaj.org-article:20e79b6f029b4a55a2f8c3206fe9f8922021-11-25T17:29:37ZDesign and ARM-Based Implementation of Bitstream-Oriented Chaotic Encryption Scheme for H.264/AVC Video10.3390/e231114311099-4300https://doaj.org/article/20e79b6f029b4a55a2f8c3206fe9f8922021-10-01T00:00:00Zhttps://www.mdpi.com/1099-4300/23/11/1431https://doaj.org/toc/1099-4300In actual application scenarios of the real-time video confidential communication, encrypted videos must meet three performance indicators: security, real-time, and format compatibility. To satisfy these requirements, an improved bitstream-oriented encryption (BOE) method based chaotic encryption for H.264/AVC video is proposed. Meanwhile, an ARM-embedded remote real-time video confidential communication system is built for experimental verification in this paper. Firstly, a 4-D self-synchronous chaotic stream cipher algorithm with cosine anti-controllers (4-D SCSCA-CAC) is designed to enhance the security. The algorithm solves the security loopholes of existing self-synchronous chaotic stream cipher algorithms applied to the actual video confidential communication, which can effectively resist the combinational effect of the chosen-ciphertext attack and the divide-and-conquer attack. Secondly, syntax elements of the H.264 bitstream are analyzed in real-time. Motion vector difference (MVD) coefficients and direct-current (DC) components in Residual syntax element are extracted through the Exponential-Golomb decoding operation and entropy decoding operation based on the context-based adaptive variable length coding (CAVLC) mode, respectively. Thirdly, the DC components and MVD coefficients are encrypted by the 4-D SCSCA-CAC, and the encrypted syntax elements are re-encoded to replace the syntax elements of the original H.264 bitstream, keeping the format compatibility. Besides, hardware codecs and multi-core multi-threading technology are employed to improve the real-time performance of the hardware system. Finally, experimental results show that the proposed scheme, with the advantage of high efficiency and flexibility, can fulfill the requirement of security, real-time, and format compatibility simultaneously.Zirui ZhangPing ChenWeijun LiXiaoming XiongQianxue WangHeping WenSongbin LiuShuting CaiMDPI AGarticlebitstream-oriented encryptionchaotic encryptionformat compatibilityH.264/AVCScienceQAstrophysicsQB460-466PhysicsQC1-999ENEntropy, Vol 23, Iss 1431, p 1431 (2021)
institution DOAJ
collection DOAJ
language EN
topic bitstream-oriented encryption
chaotic encryption
format compatibility
H.264/AVC
Science
Q
Astrophysics
QB460-466
Physics
QC1-999
spellingShingle bitstream-oriented encryption
chaotic encryption
format compatibility
H.264/AVC
Science
Q
Astrophysics
QB460-466
Physics
QC1-999
Zirui Zhang
Ping Chen
Weijun Li
Xiaoming Xiong
Qianxue Wang
Heping Wen
Songbin Liu
Shuting Cai
Design and ARM-Based Implementation of Bitstream-Oriented Chaotic Encryption Scheme for H.264/AVC Video
description In actual application scenarios of the real-time video confidential communication, encrypted videos must meet three performance indicators: security, real-time, and format compatibility. To satisfy these requirements, an improved bitstream-oriented encryption (BOE) method based chaotic encryption for H.264/AVC video is proposed. Meanwhile, an ARM-embedded remote real-time video confidential communication system is built for experimental verification in this paper. Firstly, a 4-D self-synchronous chaotic stream cipher algorithm with cosine anti-controllers (4-D SCSCA-CAC) is designed to enhance the security. The algorithm solves the security loopholes of existing self-synchronous chaotic stream cipher algorithms applied to the actual video confidential communication, which can effectively resist the combinational effect of the chosen-ciphertext attack and the divide-and-conquer attack. Secondly, syntax elements of the H.264 bitstream are analyzed in real-time. Motion vector difference (MVD) coefficients and direct-current (DC) components in Residual syntax element are extracted through the Exponential-Golomb decoding operation and entropy decoding operation based on the context-based adaptive variable length coding (CAVLC) mode, respectively. Thirdly, the DC components and MVD coefficients are encrypted by the 4-D SCSCA-CAC, and the encrypted syntax elements are re-encoded to replace the syntax elements of the original H.264 bitstream, keeping the format compatibility. Besides, hardware codecs and multi-core multi-threading technology are employed to improve the real-time performance of the hardware system. Finally, experimental results show that the proposed scheme, with the advantage of high efficiency and flexibility, can fulfill the requirement of security, real-time, and format compatibility simultaneously.
format article
author Zirui Zhang
Ping Chen
Weijun Li
Xiaoming Xiong
Qianxue Wang
Heping Wen
Songbin Liu
Shuting Cai
author_facet Zirui Zhang
Ping Chen
Weijun Li
Xiaoming Xiong
Qianxue Wang
Heping Wen
Songbin Liu
Shuting Cai
author_sort Zirui Zhang
title Design and ARM-Based Implementation of Bitstream-Oriented Chaotic Encryption Scheme for H.264/AVC Video
title_short Design and ARM-Based Implementation of Bitstream-Oriented Chaotic Encryption Scheme for H.264/AVC Video
title_full Design and ARM-Based Implementation of Bitstream-Oriented Chaotic Encryption Scheme for H.264/AVC Video
title_fullStr Design and ARM-Based Implementation of Bitstream-Oriented Chaotic Encryption Scheme for H.264/AVC Video
title_full_unstemmed Design and ARM-Based Implementation of Bitstream-Oriented Chaotic Encryption Scheme for H.264/AVC Video
title_sort design and arm-based implementation of bitstream-oriented chaotic encryption scheme for h.264/avc video
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/20e79b6f029b4a55a2f8c3206fe9f892
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