A Data-Hiding Method Based on TCP/IP Checksum

摘要

Data-hiding has become one of the focuses in the field of information security. Steganographic methods based on TCP/IP are widely used in network environment. In this paper, a new steganagraphic method based on TCP/IP is proposed, which hides encrypted secret information randomly in the checksum domain of TCP segment. Because this kind of domain is never used for data-hiding media and secret data has been encrypted before being embedded and is embedded at random, the approach enjoys better invisibility and anti-statistic attacking performance than other current steganographies based on TCP/IP.