Biometric Authentication Service on Smart Contract

Abstract

As transactions of monetary value on the public blockchain become more widespread, there is a growing demand that the transactions be verified as legitimate. As a result, it has become mandatory for crypto asset exchanges to perform identity verification. On the other hand, Bitcoin and other public blockchains are easy to start transactions with, and the anonymity of the transactions is a significant value for users. To achieve these conflicting requirements at a certain level, we developed a method to manage information generated from a user’s biometric information with smart contract and link transactions on the blockchain to real people. This mechanism makes it relatively easy for the user to claim their identity while the operator can control the degree of identity verification.