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Diya Jutt
Independent Researcher
India
Abstract
This paper presents a comparative study of symmetric and asymmetric cryptographic algorithms available up to 2014. Symmetric algorithms considered include Data Encryption Standard (DES), Triple DES (3DES), Advanced Encryption Standard (AES), and RC4; asymmetric algorithms include Rivest–Shamir–Adleman (RSA), Elliptic Curve Cryptography (ECC), and Diffie–Hellman (DH). The study evaluates performance in terms of encryption/decryption speed, key management complexity, and security strength under comparable key sizes. A methodology combining analytical evaluation, statistical performance analysis, and simulation in MATLAB is employed. Five research objectives guide the investigation: (1) quantify throughput of each algorithm under varying data sizes; (2) assess computational overhead; (3) evaluate security margin against known attacks up to 2014; (4) analyze key management complexity; (5) recommend algorithm selection based on application scenario. Statistical analysis of execution times is presented in tabular form. Simulation research uses synthetic datasets to model encryption/decryption processes, and results demonstrate trade-offs between speed and security. Conclusions include guidelines for selecting optimal cryptosystems for resource-constrained vs. high-security applications. Ten references from literature up to 2014 are provided.
Keywords
Symmetric cryptography; asymmetric cryptography; performance analysis; security evaluation; MATLAB simulation
References
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