Aosign is an electronic authentication service provided by Japan Electronic Authentication Co., Ltd., which is mainly used for electronic signature and authentication of individual users belonging to enterprises. Aosign service provides a variety of interesting signature styles, and users can choose and generate electronic signatures according to their own preferences. Aosign service is a specific authentication service based on Japanese laws related to electronic signature and authentication business, and has obtained the national authentication of 1. Therefore, the electronic signature generated by aosign service is legal and valid in Japan.

Whether the interesting signature of aosign is illegal refers to whether the personalized electronic signature generated by aosign service conforms to the legal provisions.