A Symmetric Key Cryptosystem Using DNA Sequence with OTP Key

Abstract

A two stage encryption algorithm based on DNA sequence has proposed in this paper. In the first stage an encryption of plain text is done by generating a random key. The plain text is again encrypted to produce the cipher text in the second stage. Moreover, this encryption algorithm is based on a symmetric key cryptography system, where we provide a shared key to encrypt as well as decrypt the intended message. To encrypt the original key two stages are maintained and sending it over a separate secure channel other than the channel through which we are transferring the cipher text. A numerical study confirms that the proposed algorithm is reliable, secure, scalable, and robust for transmitting message.

A A Biological-Inspired Cryptosystem based on DNA Cryptography and Morse Code Ciphering Technique

“…The attacker just needs to find the decryption key secret to get the plaintext, as the algorithm already lies in the public domain 3 . Once the attacker can determine the key, the attacked system will be deemed to be broken or damaged (Aich et al, 2015). Attacks on encryption systems are categorised based on the proposed cryptographic algorithm as Brute-Force Attack, Ciphertext-Only Attack, Linear Cryptanalysis Attack, Differential Cryptanalysis Attack, and Timing Attacks.…”

DNA Computing: Challenges and Application

“…Concerning the text encryption, the developed algorithm has introduced a chaotic selection between either the DNA strands or the OTP DNA strands. (Aich et al 2015) [14] have developed a two stage DNA sequence based encryption algorithm while the shared key is generated by a DNA sequence. By the advancement of technology, the traditional cryptography systems couldn't achieve the required level of security to face the advanced attackers.…”