Steganographic information detection in jpeg files with the help of complex usage of several stego-attackes

The paper is devoted to the problem of steganographic information detection in JPEG fi les. The existing programs of stego-hiding are observed. The statistic methods of hidden information detection are analyzed. A couple of new methods of JPEG fi les analyze are presented. The effectiveness of detection of hidden data with the help of complex usage of several stego-attackes is estimated.