Cryptography based Network Security Analysis using Secure Hashed Identity Message Authentication

Abstract

Network security in resource-constrained environments has become a critical challenge due to limited memory, power restrictions, and vulnerabilities to encryption attacks. Traditional approaches, such as Proxy Re-Encryption (PRE) and Lightweight Symmetric Asymmetric Encryption (LSAE), often sufferfrom computational overhead, latency, and inefficiency in real-timesystems. To address theseconcerns, this workproposesaSecureHashedIdentityMessageAuthentication (SHIMA) model that ensures data integrity, authentication, and efficient end-to-end encryption.Theproposed schemeintegrates SHIMAwithimprovedalgorithmssuchasAdvancedEncryption RSA (AERSA), Mono-alphabetic key substitution, and a modifiedCaesarcipher,therebyachievingenhancedsecurityand reduced latency. Simulation results demonstrate that SHIMA minimizes time complexity, improves packet delivery ratio, and increases throughput when compared to conventional schemes like PRE and LSAE. This framework provides a robust foundation for efficient, scalable, and secure communication across networked environments

Introduction

1. Introduction

With the growth of cloud computing, wireless networks, and distributed systems, ensuring secure, efficient, and low-latency data transmission has become essential. Traditional encryption models—such as RSA, Proxy Re-Encryption (PRE), and Lightweight Symmetric Asymmetric Encryption (LSAE)—face scalability, latency, and vulnerability issues, especially under real-time and resource-constrained conditions.

2. Problem Statement

• Conventional encryption methods are limited by:

  • High computational costs

  • Key management difficulties

  • Vulnerabilities to brute-force, replay, and insider attacks

• Identity-Based Encryption (IBE) helps reduce reliance on Public Key Infrastructure (PKI), but modern attacks require even more robust and lightweight models.

3. Proposed Solution: SHIMA Framework

The Secure Hashed Identity Message Authentication (SHIMA) framework introduces a multi-layered, lightweight, and highly secure encryption scheme to address these challenges.

Key Features:

• Assigns unique hashed identities for each session

• Minimizes re-encryption delays

• Enhances authentication, confidentiality, and integrity

• Reduces overhead in real-time and IoT environments

4. Core Components of SHIMA

5. Performance Benefits

• Lower latency and reduced re-encryption overhead

• Improved packet delivery ratio and throughput

• Suitable for:

  • IoT networks

  • Wireless communication

  • Cloud-based and distributed systems

6. Motivation and Need

SHIMA addresses the urgent demand for secure and lightweight encryption systems capable of operating in environments with:

• Limited power, memory, or processing (e.g., IoT devices)

• High-speed real-time communication needs

• Increasing risk of identity spoofing and adaptive cyberattacks

7. Literature Survey Highlights

Prior methods and studies (2015–2024) attempted to improve encryption efficiency, identity-based security, searchable encryption, and cryptographic resilience. However, most face one or more of the following limitations:

• High implementation complexity

• Scalability issues

• Vulnerability to keyword guessing, insider threats, or cryptanalysis

• Lack of real-world adaptability

• Poor performance under low-resource or real-time conditions

Conclusion

Withtheincreasingrelianceonnetworkedcommunicationsystems, the need for secure, efficient, and scalable encryption mechanisms has become more critical than ever. Conventional methods such as Proxy Re-Encryption (PRE) and Lightweight Symmetric Asymmetric Encryption (LSAE) offer certain advantages but are limited by latency, computational complexity, and vulnerability to adaptive attacks. The proposed Secure Hashed Identity Message Authentication (SHIMA) framework addresses these challenges by combining identity-based hashing with layered cryptographic techniques such as AERSA, mono-alphabetic substitution, and modified Caesar cipher. This integration ensures that transmitted data maintains its confidentiality,authenticity,andintegritywhilealsominimizingre- encryption delays. Simulation results validate that SHIMA outperforms existing models by achieving lower latency, reduced time complexity, higher packet delivery ratios, and improved throughput performance. Furthermore, its lightweight design makes it suitable for resource-constrained devices in IoT and wireless environments as well as for larger-scale distributed cloud systems. Thus, SHIMA provides a balanced solution that combines robustness with practicality, making it a strong candidate for next- generation secure communication frameworks.

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Copyright

Copyright © 2025 Nagarathna C, Prabhat Rai, Prajwal Patel A N, S Shrisha, Shreyas S. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.