Date Added: Jan 2012
A new DNA sequence-based data-hiding scheme is presented in this paper. The authors establish an injective mapping between one complementary rule and two secret bits in a message. Based on this mapping mechanism, the proposed scheme can effectively hide two secret bits in a message by replacing one character. This approach can greatly improve the embedding capacity in data hiding. Robustness and security analyses show that the probability of an attacker's making a successful recovery of the hidden data is negligible. According to the experimental results, the proposed scheme has a stable and efficient embedding capacity with a low modification rate, and the fake DNA sequence does not need to expand the length of the reference DNA sequence.