The rapid advance of digitalisation in recent years has been accompanied by a dramatic rise in the number of online transactions in which users cannot see one another face to face, making it difficult to judge the credibility of the other party and leading to heightened concerns around trust. With reports of fraud and instances of people falsifying personal credentials like work history and professional qualifications growing increasingly prevalent, ensuring the circulation of high-quality, reliable identification data poses an urgent challenge to users and businesses alike.

To address this, Fujitsu Laboratories has developed technology based on a Decentralized Identification (DID) utilising blockchain that analyses the risk of falsification and the trustworthiness of the other party's personal credentials when a user conducts a transaction online. The new technology achieves this through a mutual evaluation of the users when a transaction occurs, and by inferring the relationships between users based on past transaction data.

Fujitsu's new digital identity exchange technology promises a future in which people can enjoy online services more safely, offering user-friendly features including graphics to visualise the relationships between users, as well as a unique "trust score" that make it easier to determine each user's trustworthiness before starting a transaction.

In recent years, there has been an increase in new forms of business based on trust between people or companies, including sharing and matching services. In these sorts of digital businesses, it remains crucial to accurately convey the identity of the other party in the transaction. There are now ongoing discussions around the use of blockchain technology in these kinds of transactions as a form of decentralised identification that accurately discloses each party's identity to the other parties, as guaranteed by an impartial third party.