D’Anvers, J.-P., D. Heinz, P. Pessl, M. Van Beirendonck, and I. Verbauwhede. “Higher-Order Masked Ciphertext Comparison for Lattice-Based Cryptography”. IACR Transactions on Cryptographic Hardware and Embedded Systems, vol. 2022, no. 2, Feb. 2022, pp. 115-39, doi:10.46586/tches.v2022.i2.115-139.