With deeply research on the webpage steganography algorithms based on the uppercase-lowercase conversion of the tag letters, the singularity of tag mismatch is found after the information embedded. For this reason, an algorithm of steganalysis for stego-information hidden in a webpage is proposed. Through counting the number of mismatches of tag pairs and null-tags, and the ratio of the number to file size is calculated. If the ratio is larger than the significance level α, then the webpage is likely to embedded information. The algorithm can ...
