Enhancement of A5/1 Stream Cipher with Non-Linear Function using MOSFET
Farhan Rahman1, Siddharth Singh2
1Farhan Rahman, Department of Electronics and Communication Engineering, Vellore Institute of Technology, Chennai (Tamil Nadu), India.
2Siddharth Singh, Department of Electronics and Communication Engineering, Vellore Institute of Technology, Chennai (Tamil Nadu), India.
Manuscript received on 14 December 2019 | Revised Manuscript received on 22 December 2019 | Manuscript Published on 31 December 2019 | PP: 101-105 | Volume-9 Issue-1S3 December 2019 | Retrieval Number: A10211291S319/19©BEIESP | DOI: 10.35940/ijeat.A1021.1291S319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Living in this modern era – the epitome of communication GSM networks is one of the mainly used architectures. But GSM architecture has its own shortcomings; the GSM network is vulnerable to various security threats. For any network to provide security to the user, the algorithms should be planned and designed in such a way that it provides cellular secrecy, data and signaling confidentiality to the concerned user. Keeping in mind the above features, the A5/1 algorithm provides network security. Initially, the A5/1 algorithm dealt with a pre-defined secret key but they still possess the threat of being decrypted by cryptanalytic attacks. Although decrypting this algorithm is not easy and requires high computational power. Such attacks lead to the necessity to modify the A5/1 algorithm; in our paper, we have proposed a better method to enhance the already existing algorithm.
Keywords: A5/1 Algorithm, GSM Networks, Non-Linear, Session Key, Stream Cipher.
Scope of the Article: Software Defined Networking and Network Function Virtualization