A New DNA Cryptosystem for Encrypting Persian Texts and Images with Key Exchange based on Hyper Elliptic Curve
Fatemeh Alidadi Shamsabadi
1
(
Department of Computer, Faculty of Engineering, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
)
Shaghayegh Bakhtiari chehelcheshmeh
2
(
Shahrekord Branch, Islamic Azad University
)
Narges Farhadi
3
(
Department of Computer, Faculty of Engineering, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
)
Keywords: Persian Plaintexts, DNA Hybridization, HEC Key Agreement, Security, DNA Cryptography,
Abstract :
With the emergence of quantum computers, traditional cryptography methods will be broken and lose their efficiency. Fortunately, DNA-based cryptography methods have high resistance against quantum attacks. However, these methods have not yet been used to secure Persian texts. On the other hand, DNA encryption methods require a secure communication channel for sharing the secret key. Therefore, in this paper, a new cryptosystem is presented to provide confidentiality of Persian texts based on DNA cryptography. Also, considering the widespread use of images in public media, the ability to encrypt images is also embedded in this scheme. In the proposed method, the hyper-elliptic curve cryptography (HECC) system is used to generate a shared secret key on both sides of communication so that there is no longer a need for a secure channel. Also, DNA hybridization technology is used to perform encryption and decryption of the message to minimize the time complexity of the cryptography algorithm. According to the results of the performance evaluation, the proposed scheme reduces the computational overhead and has lower energy consumption compared to previous schemes.
