Background: Several activities or tasks which are performed with the help of digital technologies
not only make life easier but also very fast. The world without digital technologies realization
seems to be very hard. These activities involve the exchange of some messages, which sometimes
needs security, in terms of confidentiality, integrity, and availability.
Objective: To develop an algorithm which can withstand against the snooping attack and traffic analysis.
Methods: DNA concept is used to perform the encryption process. After the encryption process has
been performed, the resultant cipher text obtained can be made hidden into some of the randomly selected
frames of video acting as a cover medium. The chaotic sequence has been used to determine
the random frame of carrier video.
Results: Performance of proposed approach was evaluated on the different parameters which was
satisfactory. Results obtained through histogram analysis clearly reflect observations that visual detection
is very hard to observe. If spectral analysis is performed on the output generated by the encryption
procedure of the proposed algorithm, the result will be an encrypted message.
Conclusion: Encrypting the required plain text, choosing a random frame and then hiding encrypted
text in LSB of the chosen frame are the key concepts of the proposed algorithm. The strength of
DNA and Chaotic sequence is exploited in the proposed algorithm. Based on the survey and results
obtained, the strength of the proposed algorithm is claimed.