FlexMAC: Security-Enhanced Message Authentication Code (MAC) Based on Generating a Unique Hash Function with an Artificial Neural Network 


Vol. 50,  No. 3, pp. 500-510, Mar.  2025
10.7840/kics.2025.50.3.500


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  Abstract

This paper proposes FlexMAC, which enhances security in a Message Authentication Code (MAC). FlexMAC generates an exclusive authentication key that cannot be duplicated or reproduced, utilizing a uniquely generated hash function with an artificial neural network, thus strengthening the integrity of message authentication and effectively mitigating vulnerabilities in traditional MAC systems. In particular, by generating a new authentication key with a newly created hash function in each MAC session, FlexMAC not only effectively prevents replay attacks—where an attacker attempts to bypass integrity verification by storing and retransmitting the authentication key and messages used in previous communications—but also exponentially increases the cost of rainbow table or dictionary attacks aimed at cracking the authentication key, making such attacks very difficult. These characteristics make FlexMAC capable of securely guaranteeing message integrity in environments requiring high security and are expected to dramatically improve the security level of MAC systems.

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[IEEE Style]

S. Moon and T. Park, "FlexMAC: Security-Enhanced Message Authentication Code (MAC) Based on Generating a Unique Hash Function with an Artificial Neural Network," The Journal of Korean Institute of Communications and Information Sciences, vol. 50, no. 3, pp. 500-510, 2025. DOI: 10.7840/kics.2025.50.3.500.

[ACM Style]

Seongsu Moon and Taejune Park. 2025. FlexMAC: Security-Enhanced Message Authentication Code (MAC) Based on Generating a Unique Hash Function with an Artificial Neural Network. The Journal of Korean Institute of Communications and Information Sciences, 50, 3, (2025), 500-510. DOI: 10.7840/kics.2025.50.3.500.

[KICS Style]

Seongsu Moon and Taejune Park, "FlexMAC: Security-Enhanced Message Authentication Code (MAC) Based on Generating a Unique Hash Function with an Artificial Neural Network," The Journal of Korean Institute of Communications and Information Sciences, vol. 50, no. 3, pp. 500-510, 3. 2025. (https://doi.org/10.7840/kics.2025.50.3.500)
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pISSN : 1226 - 4717
eISSN : 2287 - 3880