• Fast Protection of H.264/AVC b...

Treffer: Fast Protection of H.264/AVC by Selective Encryption of CAVLC and CABAC for I and P Frames

Title:
Fast Protection of H.264/AVC by Selective Encryption of CAVLC and CABAC for I and P Frames
Authors:
SHAHID, Zafar, CHAUMONT, Marc, PUECH, William
Source:
IEEE transactions on circuits and systems for video technology. 21(5):565-576
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2011.
Publication Year:
2011
Physical Description:
print, 39 ref
Original Material:
INIST-CNRS
Subject Terms:
Telecommunications, Télécommunications, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Telecommunications et theorie de l'information, Telecommunications and information theory, Théorie de l'information, du signal et des communications, Information, signal and communications theory, Théorie du signal et des communications, Signal and communications theory, Codage, codes, Coding, codes, Cryptographie, Cryptography, Traitement du signal, Signal processing, Traitement des images, Image processing, Télécommunications, Telecommunications, Systèmes, réseaux et services de télécommunications, Systems, networks and services of telecommunications, Transmission et modulation (techniques et équipements), Transmission and modulation (techniques and equipments), Algorithme AES, AES algorithm, Algoritmo AES, Appareil portatif, Portable equipment, Aparato portátil, Clé privée, Private key, Clave privada, Codage adaptatif, Adaptive coding, Codificación adaptativa, Codage binaire, Binary coding, Codificación binaria, Codage vidéo, Video coding, Code arithmétique, Arithmetic code, Código aritmético, Code entropie, Entropy codes, Code longueur variable, Variable length code, Código longitud variable, Codec vidéo, Video codecs, Communication multimédia, Multimedia communication, Cryptage bloc, Block ciphering, Cifrado en bloque, Cryptage continu, Stream ciphering, Cifrado continuo, Etat actuel, State of the art, Estado actual, Evaluation performance, Performance evaluation, Evaluación prestación, Ligne de base, Baseline, Línea de base, Signal vidéo, Video signal, Señal video, Sécurité donnée, Security of data, Séquence image, Image sequence, Secuencia imagen, Texture, Textura, Traitement signal vidéo, Video signal processing, Transmission en continu, Streaming, Transmisión fluyente, Transmission information, Information transmission, Transmisión información, Cryptage sélectif, Selective encryption, CABAC, CAVLC, selective encryption, stream cipher, video security
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Laboratory of Informatics, Robotics, and Microelectronics, University of Montpellier II, Montpellier 34392, France
ISSN:
1051-8215
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=24162325
Rights:
Copyright 2015 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Telecommunications and information theory
Accession Number:
edscal.24162325
Database:
PASCAL Archive

Weitere Informationen

This paper presents a novel method for the protection of bitstreams of state-of-the-art video codec H.264/AVC. The problem of selective encryption (SE) is addressed along with the compression in the entropy coding modules. H.264/AVC supports two types of entropy coding modules. Context-adaptive variable length coding (CAVLC) is supported in H.264/AVC baseline profile and context-adaptive binary arithmetic coding (CABAC) is supported in H.264/AVC main profile. SE is performed in both types of entropy coding modules of this video codec. For this purpose, in this paper the encryption step is done simultaneously with the entropy coding CAVLC or CABAC. SE is performed by using the advanced encryption standard (AES) algorithm with the cipher feedback mode on a subset of codewords/binstrings. For CAVLC, SE is performed on equal length codewords from a specific variable length coding table. In case of CABAC, it is done on equal length binstrings. In our scheme, entropy coding module serves the purpose of encryption cipher without affecting the coding efficiency of H.264/AVC by keeping exactly the same bitrate, generating completely compliant bitstream and utilizing negligible computational power. Owing to no escalation in bitrate, our encryption algorithm is better suited for real-time multimedia streaming over heterogeneous networks. It is perfect for playback on handheld devices because of negligible increase in processing power. Nine different benchmark video sequences containing different combinations of motion, texture, and objects are used for experimental evaluation of the proposed algorithm.