AetharShield Protocol: A Post-Quantum Hardened Cryptographic Primitive with Dynamic Noise-Injected Lattice (HD-NIL) and Ephemeral Bit Permutation

The AetharShield Protocol (ASP) presents a novel post-quantum cryptographic framework designed to mitigate the threat posed by Cryptographically Relevant Quantum Computers (CRQCs) and quantum annealing algorithms. Built upon High-Dimensional Learning With Errors (HD-NIL) over the polynomial ring Z_q[X]/(X^n + 1) with parameters n=1024 and q=12289, AetharShield incorporates an additional Layer of Security: the Dynamic Permutation Layer (DPL).
By applying an ephemeral, non-linear bit permutation to ciphertext vectors post-encryption, AetharShield disrupts standard linear lattice-reduction attacks (e.g., LLL, BKZ). Furthermore, the protocol incorporates a Fast Number Theoretic Transform (NTT) module to achieve O(n log n) computational speedups.
This paper outlines the mathematical formulation, side-channel resistance considerations, and the open-source reference implementation hosted at GitHub: https://github.com/adiguna-sopyan/AetharShield_Protocol.