Author

Jing-Tian Zhao

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Preprint Sep 2026

Stabilizer-Public-Key Authentication: Long Stabilizer Public Keys Resist Finite-Copy Forgery Attacks

We propose an information-theoretic authentication protocol based on a finite supply of long quadratic-stabilizer public-key states over an odd-prime field, where the effective key length after one signature exposure is the residual dimension $r=n-\ell$. A computationally unbounded adversary observes one valid classica...

Masahito Hayashi, Jing-Tian Zhao, Bai-Chu Yu · 0 citations

Stabilizer-Public-Key Authentication: Partial Prediction Bounds and Limits of Key Reuse

The results guarantee security against fixed-target forgery under a single-signature-exposure model under the assumption of a finite supply of quadratic-stabilizer public-key states over an odd-prime field.

Masahito Hayashi, Jing-Tian Zhao, Bai-Chu Yu · 0 citations