An unequal secure encryption scheme for H.264/AVC video compression standard

Yibo Fan, Jidong Wang, Takeshi Ikenaga, Yukiyasu Tsunoo, Satoshi Goto

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

H.264/AVC is the newest video coding standard. There are many new features in it which can be easily used for video encryption. In this paper, we propose a new scheme to do video encryption for H.264/AVC video compression standard. We define Unequal Secure Encryption (USE) as an approach that applies different encryption schemes (with different security strength) to different parts of compressed video data. This USE scheme includes two parts: video data classification and unequal secure video data encryption. Firstly, we classify the video data into two partitions: Important data partition and unimportant data partition. Important data partition has small size with high secure protection, while unimportant data partition has large size with low secure protection. Secondly, we use AES as a block cipher to encrypt the important data partition and use LEX as a stream cipher to encrypt the unimportant data partition. AES is the most widely used symmetric cryptography which can ensure high security. LEX is a new stream cipher which is based on AES and its computational cost is much lower than AES. In this way, our scheme can achieve both high security and low computational cost. Besides the USE scheme, we propose a low cost design of hybrid AES/LEX encryption module. Our experimental results show that the computational cost of the USE scheme is low (about 25% of naive encryption at Level 0 with VEA used). The hardware cost for hybrid AES/LEX module is 4678 Gates and the AES encryption throughput is about 50 Mbps.

Original languageEnglish
Pages (from-to)12-21
Number of pages10
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
VolumeE91-A
Issue number1
DOIs
Publication statusPublished - 2008

Fingerprint

Video Compression
Image compression
Unequal
Encryption
Cryptography
Partition
Computational Cost
Stream Cipher
Costs
Standards
Symmetric Cryptography
Module
Data Classification
Block Cipher
Video Coding
Image coding
Throughput
Classify
Hardware

Keywords

  • AES
  • H.264/AVC
  • LEX
  • Selective encryption
  • Unequal secure encryption
  • Video encryption

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Graphics and Computer-Aided Design
  • Applied Mathematics
  • Signal Processing

Cite this

An unequal secure encryption scheme for H.264/AVC video compression standard. / Fan, Yibo; Wang, Jidong; Ikenaga, Takeshi; Tsunoo, Yukiyasu; Goto, Satoshi.

In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E91-A, No. 1, 2008, p. 12-21.

Research output: Contribution to journalArticle

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