Author

Peijia Zheng

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Preprint Jul 2026

Ciphertext-Native Watermarking for RLWE-Based Homomorphic Encryption

This work proposes a watermarking technique for RLWE-based HE ciphertexts by exploiting the algebraic structure of RLWE polynomials and introduces two practical schemes that preserve the original security of HE while maintaining correctness and watermark robustness.

Yufei Zhou, Peijia Zheng · 0 citations