Hiding Messages Based on DNA Sequence and Recombinant DNA Technique

Data hiding unnoticeably conceals message to prevent such message from being leaked to the existing media so as to ensure the confidentiality of the relevant information, which plays an important role in DNA cryptography. A data hiding model based on DNA sequence and recombinant DNA technique has been proposed to transmit information securely. According to the proposed model, a message can be hidden on a DNA sequence by using a single mapping rule table, and further concealed in DNA plasmid by recombinant DNA technique. The recombined DNA can be concealed in organisms and screened by selectable markers. This single mapping mechanism can improve the embedding capacity. The way to hide message in organisms is more flexible than that in micro-point of DNA. The relevant experimental results and security analysis show that the cracking probability of the model is negligible, which can ensure the security of information.

I. Introduction

With the development of computers and communication systems in recent years, how to keep the confidentiality and security of the sensitive data has become the most important issue. In order to prevent secret messages from being used by those unauthorized people, many technologies have been explored, such as encryption, steganography and watermarking. Data hiding is one technology which can hide any secret message or other seemingly innocuous messages in a carrier through steganography [1]. Compared with encryption, it is less likely to attract evildoers’attention, thus securing the data safety [2]. Therefore, to conduct research on transmitting secret message by data hiding to avert malicious attacking and to fulfill a safe transmission has been becoming more and more popular. Carrier can be any medium to convey information, including texts, videos, sound tracks, images [3]–[7] and 3D objects [8]. Hiding process may cause few changes of the above carriers. An evildoer can detect the secret messages via ordinary signal processing and geometric transformation.