Text Encryption Based on Huffman Coding and ElGamal Cryptosystem

Title:Text Encryption Based on Huffman Coding and ElGamal Cryptosystem

Volume: 15 Issue: 4

Author(s): Khoirom Motilal Singh*, Laiphrakpam Dolendro Singh and Themrichon Tuithung

Affiliation:

• Department of Computer Science and Engineering, National Institute of Technology, Nagaland,India

Keywords: Huffman coding, ElGamal cryptosystem, elliptic curve cryptography, text encryption, data compression, text decryption.

Abstract: Background: Data that are in the form of text, audio, image, and video are used everywhere in our modern scientific world. These data are stored in physical storage, cloud storage and other storage devices. Some of these data are very sensitive and require efficient security while storing as well as in transmitting from the sender to the receiver.

Objective: With the increase in data transfer operation, enough space is also required to store these data. Many researchers have been working to develop different encryption schemes, yet there exist many limitations in their works. There is always a need for encryption schemes with smaller cipher data, faster execution time and low computation cost.

Methods: A text encryption based on Huffman coding and ElGamal cryptosystem is proposed. Initially, the text data is converted into its corresponding binary bits using Huffman coding. Next, the binary bits are grouped and again converted into large integer values which will be used as the input for the ElGamal cryptosystem.

Results: Encryption and Decryption are successfully performed where the data size is reduced using Huffman coding and advance security with the smaller key size is provided by the ElGamal cryptosystem.

Conclusion: Simulation results and performance analysis specify that our encryption algorithm is better than the existing algorithms under consideration.

Cite this article as:

Singh Motilal Khoirom *, Singh Dolendro Laiphrakpam and Tuithung Themrichon , Text Encryption Based on Huffman Coding and ElGamal Cryptosystem, Recent Patents on Engineering 2021; 15 (4) : e210421186010 . https://dx.doi.org/10.2174/1872212114999200917144000

DOI https://dx.doi.org/10.2174/1872212114999200917144000	Print ISSN 1872-2121
Publisher Name Bentham Science Publisher	Online ISSN 2212-4047