Research on the image information hiding based on lowest effective bits

By analyzing the information embedding and retrieving process, we combine the encrypting algorithm with chaotic mapping using the logistic mapping and system time random factor generator to realize the encryption of dynamic key to resolve the algorithm security and key sensitive problem. By modifying the digital image color or bit plane of color component and adjusting the sensitive-less important pixels to represent the information of secret files to embed secret files. For the cipher texts is arranged at the low bits, so the secret file is invisible and realize the image communication security. Experimental results show that in specific secret information hiding transportation situations this method can achieve the image commutation security and guarantee the security of transportation image on network.