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A Software-Based ASCON–QPP Security for Lightweight Metaverse Applications
Abstract
The growing dependence on data-centric software systems demands strong protection of sensitive information, where confidentiality, integrity, and high-quality randomness are critical. Permutation-based cryptography provides structured diffusion and unpredictability for secure software environments. ASCON, selected by National Institute of Standards and Technology (NIST) as a lightweight cryptography standard, offers an efficient and modular permutation suitable for experimentation. The Quantum Permutation Pad (QPP) introduces highly nonlinear, entropy-rich byte-level permutations to enhance state mixing. This chapter integrates ASCON with QPP in software across baseline, 6-round, and 12-round configurations and evaluates performance using randomness tests, bit-distribution, avalanche effect, and key sensitivity. Results show avalanche improvements of 21.7% and 39.1%, a 0.25% entropy increase, 100% serial correlation reduction, ~4% bit-bias reduction, and only 1–1.5% throughput overhead.
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