Ravi Reddy
Independent Researcher
India
Abstract
Mobile banking has revolutionized financial services by enabling transactions anywhere, anytime. However, security remains a critical concern, especially on resource-constrained mobile devices. This manuscript presents an in-depth study of two classic symmetric‐asymmetric hybrid schemes—Data Encryption Standard (DES) for bulk data encryption and Rivest–Shamir–Adleman (RSA) for secure key exchange—within the constraints of pre-2016 mobile platforms. We analyze their performance, resilience to common attacks (e.g., known-plaintext, chosen‐ciphertext), and usability on devices typical of 2015. Statistical analysis quantifies encryption/decryption latency and throughput. Simulation experiments using NS-2 model session setup, key exchange, and transaction workflows. Results indicate that DES+RSA hybrids achieve acceptable security and performance trade-offs for PIN‐based transactions but face challenges for large data transfers. Recommendations for parameter tuning and implementation optimizations are provided.
Keywords
Mobile banking, DES, RSA, key exchange, encryption performance, NS-2 simulation
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