Visible to the public Fast HEVC Selective Encryption Scheme Based on Improved CABAC Coding Algorithm

TitleFast HEVC Selective Encryption Scheme Based on Improved CABAC Coding Algorithm
Publication TypeConference Paper
Year of Publication2020
AuthorsZhang, Qiao-Jia, Ye, Qing, Yuan, Zhi-Min, Li, Liang
Conference Name2020 IEEE 6th International Conference on Computer and Communications (ICCC)
Date PublishedDec. 2020
ISBN Number978-1-7281-8635-1
KeywordsCollaboration, context-based adaptive binary arithmetic coding, encoding, Encryption, Entropy, entropy coding, high efficiency video coding, Human Behavior, human factors, Interference, Metrics, policy-based governance, pubcrawl, resilience, Resiliency, Safe Coding, Selective Encryption, Syntactics, syntax elements

Context-based adaptive binary arithmetic coding (CABAC) is the only entropy coding method in HEVC. According to statistics, CABAC encoders account for more than 25% of the high efficiency video coding (HEVC) coding time. Therefore, the improved CABAC algorithm can effectively improve the coding speed of HEVC. On this basis, a selective encryption scheme based on the improved CABAC algorithm is proposed. Firstly, the improved CABAC algorithm is used to optimize the regular mode encoding, and then the cryptographic algorithm is used to selectively encrypt the syntax elements in bypass mode encoding. The experimental results show that the encoding time is reduced by nearly 10% when there is great interference to the video information. The scheme is both safe and effective.

Citation Keyzhang_fast_2020