An efficient mechanism of cryptographic synchronization within selectively encrypted H.265/HEVC video stream

Jovanović, Boriša Ž.; Gajin, Slavko

doi:10.1007/s11042-017-4389-3

Cited by 5 publications

(9 citation statements)

References 16 publications

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“…Using SEAs, both the PSNRs and SSIMs have a significant decline. For most video sequences, the RSVE scheme presents a smaller PSNR and SSIM than the SEAs in [28] and [29]. Hence, the proposed scheme has more remarkable effect on the quality of the video sequences, and the texture information of video frames can be further protected.…”

Section: Objective Indicator Analysismentioning

confidence: 99%

“…[29] Yes Ref. [28] Yes RSVE Yes and the key updating is also slice-synchronized. Hence, the subsequent encrypted frame can be decoded and decrypted normally if some slices are lost.…”

Section: Encryption Schemes Decrypted Normally Under Packet Lossmentioning

confidence: 99%

“…4. As only the syntax elements in bypass coding mode are encrypted in [28] and [29], some structure information is still available in their schemes. Application of the RSVE scheme causes more serious visual degradation.…”

Section: Encryption Schemes Decrypted Normally Under Packet Lossmentioning

confidence: 99%

“…However, it is designed for H.264/AVC [9]. Borŝa et al proposed a cryptographic synchronization mechanism [28]. It achieves robustness.…”

Section: Introductionmentioning

confidence: 99%

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A Robust Selective Encryption Scheme for H.265/HEVC Video

et al. 2023

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To protect the information of video stream, many selective video encryption schemes have been proposed based on the H.265/HEVC video. However, most of the existing algorithms are not robust, thus failing to decrypt under packet loss. To further improve the robustness capability of video protection, a robust selective encryption scheme is proposed in this paper. In H.265/HEVC standard, video is encoded into multiple slices, and the slices are decoded independently. Inspired by the feature, each slice is individually encrypted using RC4 stream cipher. The pseudorandom binary sequence (PRBS) for one slice is related to encoding parameters and the SHA-256 hash value of the corresponding slice header, thus ensuring the real-time update of the PRBS and increasing the resistance to chosen-plaintext attack. A two-rounds shifting algorithm is designed to scramble non-zero coefficients of the transform units (TUs), and then motion vector difference (MVD) parameters, quantized transform coefficients (QTCs) and intra prediction modes (IPMs) are selected for encryption. The combination of coefficient scrambling and syntax elements encryption further improves the encryption performance. The proposed scheme is slice-synchronized. Hence, it decrypts normally in the case of packet loss, and supports online real-time interaction. Furthermore, the simulation and analysis results show that the proposed algorithm has format compatibility, high security and low time complexity, which is a promising tool for video cryptographic applications.

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Section: Objective Indicator Analysismentioning

confidence: 99%

“…[29] Yes Ref. [28] Yes RSVE Yes and the key updating is also slice-synchronized. Hence, the subsequent encrypted frame can be decoded and decrypted normally if some slices are lost.…”

Section: Encryption Schemes Decrypted Normally Under Packet Lossmentioning

confidence: 99%

Section: Encryption Schemes Decrypted Normally Under Packet Lossmentioning

confidence: 99%

“…However, it is designed for H.264/AVC [9]. Borŝa et al proposed a cryptographic synchronization mechanism [28]. It achieves robustness.…”

Section: Introductionmentioning

confidence: 99%

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A Robust Selective Encryption Scheme for H.265/HEVC Video

et al. 2023

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“…The security performance analysis of video encryption schemes is presented and investigated in different research. In general, the video encryption was divided for selective encryption and full encryption, based on the amount of encrypted data and the requirements of the security level [13]- [18].…”

Section: Related Workmentioning

confidence: 99%

Novel lightweight video encryption method based on ChaCha20 stream cipher and hybrid chaotic map

Maolood

Gbashi

Mahmood

2022

IJECE

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<span lang="EN-US">In the recent years, an increasing demand for securing visual resource-constrained devices become a challenging problem due to the characteristics of these devices. Visual resource-constrained devices are suffered from limited storage space and lower power for computation such as wireless sensors, internet protocol (IP) camera and smart cards. Consequently, to support and preserve the video privacy in video surveillance system, lightweight security methods are required instead of the existing traditional encryption methods. In this paper, a new light weight stream cipher method is presented and investigated for video encryption based on hybrid chaotic map and ChaCha20 algorithm. Two chaotic maps are employed for keys generation process in order to achieve permutation and encryption tasks, respectively. The frames sequences are encrypted-decrypted based on symmetric scheme with assist of ChaCha20 algorithm. The proposed lightweight stream cipher method has been tested on several video samples to confirm suitability and validation in term of encryption–decryption procedures. The performance evaluation metrics include visual test, histogram analysis, information entropy, correlation analysis and differential analysis. From the experimental results, the proposed lightweight encryption method exhibited a higher security with lower computation time compared with state-of-the-art encryption methods.</span>

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A robust VVC video encryption scheme based on the dynamical chaotification model

Chen,

Wang,

2023

Journal of King Saud University - Computer and Information Scie

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An efficient mechanism of cryptographic synchronization within selectively encrypted H.265/HEVC video stream

Cited by 5 publications

References 16 publications

A Robust Selective Encryption Scheme for H.265/HEVC Video

A Robust Selective Encryption Scheme for H.265/HEVC Video

Novel lightweight video encryption method based on ChaCha20 stream cipher and hybrid chaotic map

A robust VVC video encryption scheme based on the dynamical chaotification model

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