Authors:
Samiha Marwan
1
;
Ahmed Shawish
2
and
Khaled Nagaty
2
Affiliations:
1
The British University in Egypt, Egypt
;
2
The British University in Egypt and Ain Shams University, Egypt
Keyword(s):
Security, DNA-based Steganography, Data Hiding, Encryption, Decryption, Playfair Cipher.
Related
Ontology
Subjects/Areas/Topics:
Algorithms and Software Tools
;
Bioinformatics
;
Biomedical Engineering
Abstract:
: DNA-based Steganography is one of the promising techniques to secure data exchange, where data is hidden
into a real DNA sequence. For the sake of security, some steganography techniques encrypt data before hiding
it which strengthen the technique’s steganalysis. One of the widely used encryption techniques is the DNAbased
playfair cipher. This technique intensively requires a long list of preprocessing steps in addition to
extra bits which must be added to guarantee successful decryption. Nevertheless, the succeeding hiding step
suffers from a limited capacity, which turns this current DNA-based Steganography technique into a complex,
inefficient, and time consuming process. In this paper, we propose a new DNA-based Steganography algorithm
to simplify the current technique as well as achieve higher hiding capacity. In the proposed algorithm, we
enhance the commonly used playfair cipher by defining a novel short sequence of preprocessing steps and
getting rid of the extra overhead
bits. We also utilize a more efficient technique to enhance the hiding phase.
The proposed approach is not only simple and fast but also provides a significantly higher hiding capacity
with a high security. The conducted extensive experimental studies confirm the outstanding performance of
the proposed algorithm.
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