Adaptive Cryptographic Architectures for Secure Multimedia on Android: Theory, Design, and Practical Evaluation
Keywords:
Android security, multimedia encryption, AES, RSAAbstract
This article presents a comprehensive, publication-ready examination of adaptive cryptographic architectures designed to secure multimedia content on Android platforms. Motivated by the confluence of rising multimedia distribution, mobile application piracy, and the unique constraints of resource-limited mobile environments, the work synthesizes established cryptographic theory, selective-encryption paradigms for multimedia, and platform-specific implementation strategies. Drawing on prior work in obfuscation, symmetric and asymmetric cryptography, selective encryption approaches for MPEG-encoded media, and practical Android cryptographic APIs, the article outlines an integrated design for protecting multimedia assets in transit, at rest, and during controlled runtime use. The methodology section describes an implementation approach combining AES-based selective encryption, RSA-wrapped key management for asset protection, and interpretation-level obfuscation to resist reverse engineering. The Results section presents a descriptive analysis of expected security properties, computational trade-offs, and system behavior under attack models typical for mobile distribution and runtime tampering. The Discussion interprets these results in the context of prior empirical studies on video encryption, software obfuscation, and cryptographic standards, and identifies limitations and directions for future research and deployment. The conclusion summarizes contributions and recommends concrete steps for practitioners seeking to balance confidentiality, performance, and maintainability when securing multimedia on Android. Throughout, claims and assertions are grounded in foundational and contemporary literature on AES, RSA, selective multimedia encryption, and Android cryptographic facilities. (Shu et al., 2014; Fauziah et al., 2018; Aminuddin, 2020; Paar & Pelzl, 2010; Tayde & Siledar, 2015; Oracle, 2020; Android Developers, 2020; Yandji et al., 2011; Stinson, 2002; Stallings, 2005; Chun-Shien, 2005; Seidel et al., 2003; Gladman, 2001; Agi & Gong, 1996; Li et al., 1996; Maples & Spanos, 1995; Meyer & Gadegast, 1995; Tang, 1996; Liu & Eskicioglu, 2003; IEEE Transactions on Circuits and Systems for Video Technology, 2003; Patil & Deshpande, 2025).
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Copyright (c) 2025 John K. Almeida
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