Agebure, M.A., Akobre, S. and Wiredu, J.K. 2026. Adaptive and Fault-Tolerant RNS-AEAD Cryptosystem with Optimized CRT Reconstruction Using ChaCha20-Poly1305 for High-Performance Secure Communication. Earthline Journal of Mathematical Sciences. 16, 5 (Aug. 2026), 913-940. DOI:https://doi.org/10.34198/ejms.16526.57.913940.