An Improved DNA Based Dual Cover Steganography

Dual cover steganography is an evolving technique in the field of covert data transmission. This paper focuses on the concept of using a theoretical single stranded DNA (ssDNA) as a primary cover, which is extracted from an inconspicuous cover image. We have analyzed the security loopholes and performance issues of the existing algorithm and proposed an improved algorithm on the same basis. Performance of both the algorithms are tested against several visual and statistical attacks, and parameterized in terms of both security and capacity. The comparison shows that the proposed improvements provide better overall security.