Secure data communication is the most important and essential issue in the area of message transmission over the networks. Cryptography provides the way of making secure message for confidential message transfer. Cryptography is the process of transforming the sender's message to a secret format called cipher text that only intended receiver will get understand the meaning of the secret message. There are various cryptographic or DNA based encoding algorithms have been proposed in order to make secret message for communication. But all these proposed DNA based encryption algorithms are not secure enough to provide better security as compared with the today's security requirement. In this paper, we have proposed a technique of encryption that will enhance the message security. In this proposed algorithm, a new method of DNA based encryption with a strong key of 256 bit is used. Along with this big size key various other encoding tools are used as key in the encoding process of the message like random series of DNA bases, modified DNA bases coding. Moreover a new method of round key selection is also given in this paper to provide better security in the message. The cipher text contains the extra bit of information as similar with the DNA strands that will provide better and enhanced security against intruder's attack.

Secure data communication and cryptography based on DNA based message encoding

DNA cryptography is a new promising field in cryptography which emerged with the progress of DNA computing. The concept of massive parallelism and large information density inherent in DNA molecule are exploited for cryptographic purposes. Currently, the main difficulties of DNA cryptography are the requirement of high tech biomolecular laboratory and computational complexity. In this paper, a new parallel cryptography technique is proposed using DNA molecular structure, one-time-pad scheme and DNA hybridization technique which certainly minimizes the time complexity.

DNA cryptography

DNA cryptography is a relatively new paradigm that has attracted great interest in the field of information security. Although there are many problems in DNA cryptography, scientists are trying to solve them because they believe that, with the extraordinary information density and the vast parallelism that are inherent in DNA computers, it is possible to make a secure system. In this study, we primarily focus on modern cryptography, which is based on quantum and DNA cryptography. Furthermore, a novel method to encrypt data by using DNA-based cryptography is discussed. In our study, DNA coding technology is used to convert binary data to DNA strings. Finally, the proposed DNA cryptography algorithm’s strength is evaluated based on the properties of DNA strands and probability theories.

A Method to Encrypt Information with DNA-Based Cryptography

DNA cryptography is used to encrypt message for secure communication on a network. It is a information carrier for transferring message from sender to receiver. For secure communication, it is not only to encrypt message but also necessary to hide encrypted message. DNA cryptography is also used for hiding the data, Hidden message is known by only sender and receiver. DNA computing is used to solve problems in cryptography, cryptanalysis and steganography. DNA sequences based data encryption seems to be a promising strategy for fulfilling the current information security needs. This paper focus on the comparative study of some existing works on DNA Cryptography. Message transmission is a process to transmit encrypted data through secure communication channel using DNA cryptography. Text message is encoded in DNA sequence. Message transmission process reduces the time complexity of transferring encrypted message. Bio molecular and one-time- pad technologies is used for secure message encryption.

http://www.sersc.org/journals/IJBSBT/vol6_no5/22.pdf

Message Transmission Based on DNA Cryptography: Review

On the implementation of a secured watermarking mechanism based on cryptography and bit pairs matching

Cryptography is one of the major concerned areas of computer and data security and a very promising direction in cryptography research is known as DNA Cryptography. DNA computational logic can be used in cryptography for encrypting, storing and transmitting the information, as well as for computation. Although in its primitive stage, DNA cryptography is shown to be very effective. In this paper, a proposal is given where the concept of DNA is being used in the encryption and decryption process. The theoretical analysis and implementations shows this method to be efficient in computation, storage and transmission; and it is very powerful against certain attacks. This paper also proposes a unique cipher text generation procedure as well as a new key generation procedure. Finally, to demonstrate the performance of the proposed method, its implementation is explained and the results are analyzed.

Atanu Majumder

Papers

An Improved Symmetric Key Cryptography with DNA Based Strong Cipher