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International Journal of Advanced Research in Computer Science

BIT BASED SYMMETRIC ENCRYPTION METHOD USING DNA SEQUENCE AND QUANTUM TECHNIQUE TO GENERATE ENCRYPTED KEY

Dept. of CSE, APIIIT (RGUKT) Andhra Pradesh, India, Ratnakumari Challa

Published Feb 20, 2018• 0 citations
Publisher

Abstract

Now a day everyone wants to provide security to their data.Present days many methods are available for doing the Cryptography.DNA sequence key based cryptography became popular because of its more security features.In the paper, encryption technique proposed is based on using two methods: Quantum key distribution for generating a key corresponding to the bit of the plain text and DNA sequence based encryption for encryption of the plain text.Sender first performs complement and LBP operation on the data.Instead of sending the processed plain text bits, sender sends the complement of the key if the processed plain text bit is 0 otherwise sends the swapped key sequence.DNA Complement method on the key which is generated by the Quantum key generation method is done based on BB84 protocol.Two step encryption and decryption technique using DNA based encryption is proposed and practically implemented.The performance of the proposed technique is analysed and compared with other related techniques.

DOI
10.26483/ijarcs.v9i2.5860

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Now a day everyone wants to provide security to their data.Present days many methods are available for doing the Cryptography.DNA sequence key based cryptography became popular because of its more security features.In the paper, encryption technique proposed is based on using two methods: Quantum key distribution for generating a key corresponding to the bit of the plain text and DNA sequence based encryption for encryption of the plain text.Sender first performs complement and LBP operation on the data.Instead of sending the processed plain text bits, sender sends the complement of the key if the processed plain text bit is 0 otherwise sends the swapped key sequence.DNA Complement method on the key which is generated by the Quantum key generation method is done based on BB84 protocol.Two step encryption and decryption technique using DNA based encryption is proposed and practically implemented.The performance of the proposed technique is analysed and compared with other related techniques.
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The Privacy is paramount when communicating subtle information, and humans have devised some unusual ways to encode their conversations. The Quantum Key Distribution agrees for the secure transmission of unbreakable encryption keys and it provides a flawless secure coding to solve the problem of key distribution. At present this is more mature application in the field of quantum computing. The fundamental concept of this protocol involves two parties, wishing to exchange a key both with access to a classical public communication channel and a quantum communication channel. The entanglement distillation approach of BB84 is widely used because the act of reading a quantum bit (QuBits) changes the bit, it is difficulty for hackers to interfere without being detected sufficient number of bits. But this technique uses only four directions of electron movements so it is possible to guess the key. To overcome these drawbacks here two level QRNA technique is proposed for security. In first level RNA is applied on plain text after BB84 protocol is applied. This method provides better security than both BB84 protocol and RNA alone.
In today’s world security has become a major threat over the transmission channel. To overcome this DNA cryptography is used to encrypt and transfer the message from sender to receiver over a secured communication network. This paper focuses on the encryption and decryption of the message using DNA encoded sequences and discusses the cryptographic applications of single qubit rotations from the view of one-way trapdoor functions. For encryption quantum public key is used and for decryption the concept of classical private key is used. The mapping between integer numbers and quantum states is done using one way trapdoor function.
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Secure communication in cryptographic system, relies on secret key which must be exchanged between a sender and a receiver such that it avoids unauthorized access and can be used to encrypt the plain text and decrypt the cipher text. However, advancement in quantum computing raises concern on the security of information exchanged over the web. As the information on the web is made secure using classical cryptographic mechanisms that are only computationally secure and quantum computers with high computational capability can generate the secrete keys in a very short time. In order to make sure that quantum computers do not breach the security of the network, we need to develop some sort of quantum-resistant mechanisms. Quantum key distribution is one of the quantum-resistant-mechanisms which guarantee secure data communication. It leverages quantum mechanics principles by exchanging the key in quantum states called qubits and any attempt to access the key causes disturbance in the qubits yielding change in their behavior or state, hence signaling the presence of an intruder and making it impossible to be accessed. This paper presents a simulation to establish and exchange secrete keys in quantum environment using BB84 protocol and to determine the efficiency of the system, quantum bit error rate is measured and discussed.
To address the concerns posed by certain security attacks on communication protocol, this paper proposes a Quantum Key Exchange algorithm coupled with an encoding scheme based on Fermat Numbers and DNA sequences. The concept of Watson-Crick’s transformation of DNA sequences and random property of the Fermat Numbers is applied for protection of the communication system by means of dual encryption. The key generation procedure is governed by a quantum bit rotation mechanism. The total process is illustrated with an example. Also, security analysis of the encryption and decryption process is also discussed.