Era of Self-Sovereign Identity
Self-Sovereign Distributed ID andCredential Management Solution

Digital ID Wallet Solution™
®
BizIDWallet ・ KayTrust
Self-Sovereign Identity Enabled by Decentralized ID and Digital Certificates“BizIDWallet” is a digital ID wallet solution that leverages the Individual NumberCard（My Number Card）to enable self-management of personal information as
digital certificates. It utilizes Decentralized Identifiers (DIDs※1) and Verifiable
Credentials (VCs※2) for tamper-resistant authenticity.
※1 DIDs：Decentralized Identifiers、※2 VCs：Verifiable Credentials

Powered by DID/VC technology from the EU Digital Identity Wallet
Utilizing the decentralized ID (DID) platform “KayTrust” proven in Europe. By collaboratingwith NTT DATA EMEAL, we incorporate the latest European technology that comply withprivacy protection and international standards.

Proven NTT DATA’s Individual Number utilization solutions
By leveraging NTT DATA’s Individual Number utilization solutions (BizPICO® and BizMINT®),
proven with eKYC and Mynaportal, we can build robust identity verification services using
highly trusted personal information from government agencies, companies, universities, etc.
Easily and securely manage personal information on
your smartphone. Each VCs can be combined andpresented as a VP※3

NTT Data’s My Number
utilization Solutions
JPKI
JLIS

Nation,local
govenment

sharing

Mynaportal

Identity Verification
Solution Utilizing JPKI

Government Administration

Companies,
Universities, etc.

sharing

Personal Data
Distribution Platform

Issuance of Digital
Credentials（VCs）

Presentation ofDigital Credentials（VP）

BizIDWallet™

Government
SectorMarriage Hunting
SectorLabor
SectorGovernment,Companies,Universities, etc.

KayTrust®
VDR※4（blockchain,web, etc.）※3 VP：Verifiable Presentation、※4 VDR：Verifiable Data Registry

We help realize a sustainable society through various fields
Job Change

Marriage Hunting

Municipal DigitalTransformation• Work experience and skills arevisualised as verifiable credentials(VCs).
• An ecosystem is created that links
learning, evaluation, andemployment opportunities.

• Utilizes government-issuedcertificates as VCs.
• Provides a secure andstraightforward start to marriage
activities.
• Helps tackle social problems, suchas population decrease.

• Enables storage and utilization ofcertificates, coupons, etc., on asingle smartphone.
• Enhances convenience of publicservices for residents.
• Improves operational efficiency oflocal governments.

“BizIDWallet” will tackle social issues together with our customers.
Let us discuss applicable use cases with you.
NTT DATA Japan Corporation

Self-Sovereign Decentralized Identity andCredential Management Solution「KayTrust®」

KayTrust ® is a trusted platform that allows you to manage
the digital identities of your customers in a safe, reliable and endto-end manner.
（URL） English website
https://kaytrust.id/
Japanese website https://8knot.nttdata.com/solution/kaytrust

Offer your customers the best experience!
Your customers can manage their digital identity, store, and share their credentials.

What customers would use KayTrust?
■ Customers who have ever suffered phishing attacks in the past anddo not trust the security of the companies that manage their data may
prefer a safe self-organized information management solutions.
■ Online customers save time and money by avoiding queues atcommercial stores. For this reason, they may need a platform thatallows them to rapidly demonstrate and validate their identity during
the purchase process.
■ Applicants for a new job who are required to share their certified
information, may prefer to have all their data on a single platform thatallows them to share quickly and easily.

Success Story
Watch our client interview on YouTube(Spanish)■Lima chamber of commerce
Digitized corporate credit and financial status certificates that were previously issued
on paper using blockchain and DID.

We look forward to your contact to explore further opportunities
together and contribute to your success.
NTT DATA Japan Corporation
Business Incubation Group Global Customer Success Office Financial Innovation Headquarters
Hashimoto, Murakami, Koyama, Harada, Hada
E-mail: ﬁh-cs-mi@hml.nttdata.co.jp
NTT DATA Japan Corporation