Study on Phone Number based Natural Person Authentication in Digital Signature

Numerous viable techniques for digitizing processes exist with digital signatures a prime example. They can replace physical signature processes, minimize paper usage, and subsequently save transportation and delivery time costs while promoting environmental conservation. However, identifying users through accounts and passwords can expose them to the risk of being hacked. If accounts and passwords are stolen or leaked, the user's personal information and habits on social media are leaked. Therefore, the objective of this study is to establish a secure user identification method. Elliptic Curve Cryptography (ECC) is a highly secure algorithm that can be implemented in shorter keys and effectively save storage space. Therefore, we used the Elliptic Curve Digital Signature Algorithm (ECDSA) as the digital signature experimentation method. Additionally, we contemplated mobile phone number authentication as the user identification approach. Using Remote Authentication Dial-In User Service (RADIUS) effectively reduced the risk of user accounts and passwords by hackers and bolster natural person authentication.