@conference {998, title = {Multiquadratic Rings and Walsh-Hadamard Transforms for Oblivious Linear Function Evaluation}, booktitle = {IEEE International Workshop on Information Forensics and Security (WIFS)}, year = {2020}, publisher = {IEEE}, organization = {IEEE}, author = {Alberto Pedrouzo-Ulloa and Juan Ram{\'o}n Troncoso-Pastoriza and Nicolas Gama and Mariya Georgieva and Fernando P{\'e}rez-Gonz{\'a}lez} }