Secure data transmission using steganography based data hiding in TCP/IP

With the advance of network technology digital communication has become an essential part of infrastructure nowadays. The Internet is widely used as a channel for communication and information transfer. The network security is becoming more important as the amount of data being exchanged on the Internet is increasing. Security requirements are necessary for the information transmitted which requires features of security like confidentiality, identification, non repudiation, integrity control and availability from the sender level up to the receiver level. This has resulted in an explosive growth of the field of information hiding, by providing secured communication between two or more computers, for exchanging confidential data like credit card numbers, usernames, passwords and tender amount etc. by preventing hackers from hacking the confidential data. This paper proposes a system that provides a novel method for secure data transmission using steganography by hiding data in TCP/IP header.