Information hiding techniques based on DNA inconsistency: An overview

Redundancy of words and characters in English language helps cryptanalysts in guessing the cipher text. DNA sequences do not follow any linguistic properties. Hence, translating any language first to DNA sequences and then applying cryptography technique upon it can prevent the attacks based on frequency analysis.. DNA cryptography is a branch of cryptography derived from DNA computing and based on difficult biological processes. In this paper, various operations that can be used in DNA computation along with DNA based cryptographic techniques have been discussed. Further, how advancement in DNA computation can bring a serious problem to traditional cryptographic system has also been explained. The work is concluded with the challenges to present DNA cryptographic system and future direction in this field.