دورية أكاديمية
Design and ARM-Based Implementation of Bitstream-Oriented Chaotic Encryption Scheme for H.264/AVC Video
العنوان: | Design and ARM-Based Implementation of Bitstream-Oriented Chaotic Encryption Scheme for H.264/AVC Video |
---|---|
المؤلفون: | Zirui Zhang, Ping Chen, Weijun Li, Xiaoming Xiong, Qianxue Wang, Heping Wen, Songbin Liu, Shuting Cai |
المصدر: | Entropy, Vol 23, Iss 11, p 1431 (2021) |
بيانات النشر: | MDPI AG, 2021. |
سنة النشر: | 2021 |
المجموعة: | LCC:Science LCC:Astrophysics LCC:Physics |
مصطلحات موضوعية: | bitstream-oriented encryption, chaotic encryption, format compatibility, H.264/AVC, Science, Astrophysics, QB460-466, Physics, QC1-999 |
الوصف: | 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. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 1099-4300 |
Relation: | https://www.mdpi.com/1099-4300/23/11/1431; https://doaj.org/toc/1099-4300 |
DOI: | 10.3390/e23111431 |
URL الوصول: | https://doaj.org/article/20e79b6f029b4a55a2f8c3206fe9f892 |
رقم الأكسشن: | edsdoj.20e79b6f029b4a55a2f8c3206fe9f892 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 10994300 |
---|---|
DOI: | 10.3390/e23111431 |