Security Level Division Encryption Scheme for H.264/AVC Video
Jianxin Song · Video Engineering · 2013
For the current video features such as easy to copy,easy to tamper with the data,a video encryption scheme based on H.264/AVC video coding standard in order to protect the security of video data is presented.Using stream cipher encryption advantages of simple,fast operation,the Advanced Encryption Standard(AES)with the Cipher Feedback(CFB)mode is used on partial codewords of Sequence Parameter Set(SPS),Picture Parameter set(PPS)and I frames.For different video applications demand different security levels,in the macro block level a certain number of macro blocks are selected to encrypt,and the security level division encryption scheme is got.Finally,the effective confidentiality,real-time,compression rate of this scheme are analyzed.Experimental results show that this scheme meets video the demand of content security and real-time,and reduces the amount of encrypted data.