iD-One

With iD-One, users worldwide can apply for recognized certificates using their ePassports and digitally sign documents anytime and anywhere through the app.

iD-One is your trusted digital identity solution, empowering users worldwide to manage their digital identities securely and conveniently. With our iD-One platform, you can effortlessly sign documents digitally from anywhere, at any time, backed by a recognized certificate.

With iD-One, holders of ICAO-compliant ePassports can efficiently apply for a digital certificate issued by Digi-Sign online. This certificate enables you to sign documents remotely while adhering to internationally recognized digital signature standards.

As Hong Kong’s only commercial Recognized Certification Authority, Digi-Sign provides reliable digital identity and signature services for individuals and organizations.

Key Features

1. Seamless Certificate Application

• Remotely submit your application using your ICAO-compliant ePassport and complete identity verification—all within the app.

1. Effortless Remote Digital Signing

• Sign contracts, forms, and important documents digitally with your valid CA-issued certificate—no need for in-person meetings or physical tokens!
• This service complies with the Electronic Transactions Ordinance (Chapter 553 of the Laws of Hong Kong).

1. Compliant and Trusted

• iD-One meets stringent security and privacy standards, aligned with local regulations and global best practices.

1. Convenient Identity Management

• Easily manage your certificate information and signing records through our user-friendly mobile app, all from your device.

Why Choose iD-One? Regulatory Confidence: Enjoy legally recognized digital signing powered by Digi-Sign certifications. Security: Enjoy high levels of security and confidentiality for your identity and data.

Begin your digital identity journey with "iD-One". Download now to take your first effortless step towards digital signing!