Analysis And Implementation Of Robustness Information Hiding On Multi-secret Sharing

As the H.264/AVC video compression has become a mainstream standard, videosteganography based on H.264/AVC has received increasingly widespread concern.Sincethe performance of actual network are not always ideal state.This paper are in connectionwith the time when the H.264/AVC video suffer passive or active packets loss duringtransmission and may make the secret information can not be recovered, based on themethod of multi-secret sharing design a low redundancy, high security and strong robuststeganographic method.Using multi-secret sharing technology, before embedding information,make a numberof secret information embedded for multi-secret sharing to distribute by using one-wayfunction, distributing a certain piece of secret information. And then put each piece ofinformation into a binary stream, select a suitable position vector video for embedding. Inthe extracted side, extracting information to each of the divided piece, and then select atleast t suitable pieces of information to reconstruct the secret information, therebyrecovering a number of secret information corresponding to the original secret. When thepacket loss rate is less than15%,the survival rates of the secret information are more than80%, having a good robustness.On the basis of multi-secret sharing add mature BCH coding techniques. Aftermulti-secret sharing distributed, each piece of information should be encoded by BCH,and then embedded into the video carrier. In the extracted side, the secret informationextracted should be decoded by BCH, and then reconstruct the original information bymulti-secret sharing. Experimental results show that when the packet loss rate is less than20percent, the survival rate of secret information can reach more than80percent, whichimproves the survival rate obviously.Taking into account the actual infinity of streaming video, the video stream can be segmented with multi-secret sharing. The main idea is to treat the embedded informationby multi-secret sharing secret processing, select a appropriate length video to embedinformation repeatedly in the carrier. Set a threshold extraction,within the threshold rangeto find the most intact carrier to retain information and reconstruct the orginal informationby multi-secret sharing. Experimental results show that when the frame loss rate is lessthan10%, the recovery rates of secret information reach100%.