Secret transmission method of taking H.264 as carrier

doi:10.3778/j.issn.1002-8331.2010.24.029

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (24): 98-100.DOI: 10.3778/j.issn.1002-8331.2010.24.029

• 网络、通信、安全 • Previous Articles Next Articles

Secret transmission method of taking H.264 as carrier

XU Ling，CHENG Yi-min，XIE Chun-hui

Department of Electronic Science and Technology，University of Science and Technology of China，Hefei 230026，China

Received:2009-10-13 Revised:2010-01-25 Online:2010-08-21 Published:2010-08-21
Contact: XU Ling

以H.264为载体的隐秘传输方法

徐玲，程义民，谢春辉

中国科学技术大学电子科学与技术系，合肥 230026

通讯作者: 徐玲

Abstract

Abstract: This paper proposes a secret transmission method aiming at streaming media application based on H.264 video.Secret message and its backup are divided into blocks and embedded into the video in hashing order，so the lost secret block can be recovered by its backup.Using digital-position based embed method，in each selected [4×4] block of I frame，3 secret bits can be embedded into 7 qualified DCT coefficients，with one changing its parity.The experiment shows a prefect result with good imperceptibility and recovery of lost secret message when loss rate is low.

Key words: H.264, digital-position based embed, frame loss, recovery

摘要： 提出了一种H.264视频在流媒体环境下的隐秘传输方法。该方法将秘密信息分段备份，用哈希函数置乱分段及备份的嵌入顺序，当秘密信息由于丢帧而损失时，用备份信息来恢复损失的秘密信息。数位信息隐藏算法将信息嵌在I帧的[4×4]子块亮度DCT系数，改变7个中频系数中1个奇偶性嵌入3比特信息。实验表明，该方法在一定丢包率下能有效恢复损失的秘密信息，适合于流媒体应用环境。

关键词: H.264, 数位信息隐藏, 丢帧, 恢复

CLC Number:

TP391
TP309

XU Ling，CHENG Yi-min，XIE Chun-hui

. Secret transmission method of taking H.264 as carrier[J]. Computer Engineering and Applications, 2010, 46(24): 98-100.

徐玲，程义民，谢春辉. 以H.264为载体的隐秘传输方法[J]. 计算机工程与应用, 2010, 46(24): 98-100.

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Secret transmission method of taking H.264 as carrier

以H.264为载体的隐秘传输方法

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