Data hiding in partially encrypted HEVC video

In this study, an efficient scheme for hiding data directly in partially encrypted versions of high efficiency video coding (HEVC) videos is proposed. The content owner uses stream cipher to selectively encrypt some HEVC‐CABAC bin strings in a format‐compliant manner. Then, the data hider embeds the...

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Vydané v:ETRI journal Ročník 42; číslo 3; s. 446 - 458
Hlavný autor: Xu, Dawen
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Electronics and Telecommunications Research Institute (ETRI) 01.06.2020
한국전자통신연구원
Predmet:
context adaptive binary arithmetic coding (CABAC)
data hiding
encrypted domain
high efficiency video coding (HEVC)
전자/정보통신공학
ISSN:1225-6463, 2233-7326
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Popis
Shrnutí:In this study, an efficient scheme for hiding data directly in partially encrypted versions of high efficiency video coding (HEVC) videos is proposed. The content owner uses stream cipher to selectively encrypt some HEVC‐CABAC bin strings in a format‐compliant manner. Then, the data hider embeds the secret message into the encrypted HEVC videos using the specific coefficient modification technique. Consequently, it can be used in third‐party computing environments (more generally, cloud computing). For security and privacy purposes, service providers cannot access the visual content of the host video. As the coefficient is only slightly modified, the quality of the decrypted video is satisfactory. The encrypted and marked bitstreams meet the requirements of format compatibility, and have the same bit rate. At the receiving end, data extraction can be performed in the encrypted domain or decrypted domain that can be adapted to different application scenarios. Several standard video sequences with different resolutions and contents have been used for experimental evaluation.
Bibliografia:Funding information
This research was supported by the National Natural Science Foundation of China (61771270), Zhejiang Provincial Natural Science Foundation of China (LY17F020013, LR20F020001), and Ningbo Natural Science Foundation (2018A610054).
https://doi.org/10.4218/etrij.2018-0484
ISSN:1225-6463
2233-7326
DOI:10.4218/etrij.2018-0484