Self sovereign identity

摘要

A method and system for identity document verification issues a decentralised identifier for a passenger which is then used by a passport issuing authority to digitally sign passport data including enhanced biometric data including an image of the bearer. A copy of the signed data is provided to the bearer. Prior to travel the bearer submits APIS data and their decentralised identifier to the authorities at the arrival destination. This data is verified in advance and the bearer issued with authority to use a pre-authorised section at immigration. On arrival an image of the bearer is acquired and matched with records of pre-approved traveller. If a match is made, the bearer is permitted to pass through automatic border control gates. The matching process may use machine learning to reduce the set of pre-approved passengers used in the match based on predicted time of arrival at immigration.