Digital Certificates

Approved by Digital Policy Office for use to validate and authenticate the identity of the party to a transaction, be it an individual or organisation

Issued by Tradelink’s wholly-owned subsidiary, Digi-Sign Certification Services Limited (Digi-Sign), the first and only commercial Recognized Certification Authority in Hong Kong under the Electronic Transactions Ordinance (ETO), our wide range of digital certificates can be applied to validate and authenticate the identity of the party to a transaction, be it an individual or organisation.

You can rely on us

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1.4M+ digital certificate issued with zero faults
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Make sure you comply fully with local regulations
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HK's only commercial Recognized Certification Authority
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Accredited ISO9001 certification for quality customer service since 2004

Digital Certificates

A digital certificate is a form of electronic record that serves as an identification of who you are in conducting online transactions. It can be installed in your PCs and other storage devices where appropriate, and can be used in a range of services such as Government e-services and online banking. Under the ETO, only a Recognized Certification Authority can issue Recognized Certificates.

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Recognized Certificates

  • Issued by Digi-Sign under a Public Key Infrastructure (PKI) in compliance with section 22 of the ETO (Cap. 553) of the Laws of Hong Kong
  • Support digital signatures used to confirm a signatory’s identity, guarantee the document’s integrity and ensure non-repudiation by origin of the document
  • Governed by the Certification Practice Statement that Digi-Sign publishes on its website from time to time
  • 12 classes of Recognized Certificates available, including:
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Personal ID-Cert Class 1
  • For individuals aged 18+
  • Used for identity proof and digital signatory
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Organizational ID-Cert Class 2 and 5
  • For authorised employees/members of organisations
  • Used for identity proof and digital signatory
  • Apply through authorised delegate (Class 2) or authorised representative (Class 5)
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Encipherment ID-Cert Class 3
  • For authorised individuals and organisations
  • Used for encryption and decryption of electronic messages
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Governmental ID-Cert Class 6 and 7
  • For authorised employees/members of government agencies
  • Used for signing (Class 6) and encryption purpose (Class 7)
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Personal ID-Cert Class 8 and Organizational ID-Cert Class 9
  • Same as Personal ID-Cert Class 1 & Organizational ID-Cert Class 5
  • Signing certificate mutually recognised under the “Arrangement of mutual recognition of electronic signature certificates issued by Hong Kong and Guangdong”
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Personal (Banking) ID-Cert Class 10 and Organizational (Banking) ID-Cert Class 11
  • For individual and corporate customers of banks
  • Support digital signing for e-cheque and other banking services
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Personal (Remote) ID-Cert Class 12 (i.e. iD-One)
  • For individual aged 18+ with valid travel documents
  • Support remote digital signing provided by Remote Signing Service Provider (RSSP)
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Organizational (Remote) ID-Cert Class 15 (i.e. iCorp-One)
  • For authorised employees/members of local and overseas organisations with any of the below business identifiers:
    • Business Registration Number (BRN) or Company Registration Number (CRN) or Unique Business Identifier (UBI)
    • Legal Entity Identifier (LEI) or The Dun & Bradstreet D-U-N-S® Number
  • Used for identity proof and digital signatory
  • Support e-submission of application and remote digital signing provided by RSSP
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Premium Certificates

  • Customised certificate service that complies with the technology and security measures adopted under the Recognized Certificate Authority hierarchy
  • Provide equal trustworthiness as Recognized certificates but without the need for a costly in-house PKI deployment
  • Support integration with existing operations, workflows and internal applications within an organisation
  • Service set up is easy and quick

PKI Consultation

From planning to implementation of identification and authentication solutions, our services include:
  • Feasibility study
  • Consulting and project planning
  • Project management
  • System and application development
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PKI consultation

From planning to implementation of identification and authentication solutions, our services include

  • Feasibility Study
  • Consulting and Project Planning
  • Project Management
  • System and Application Development
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Success Case Highlights
Provided a Smart Warrant Card System with the use of ID-Cert to a Government department with more than 40,000 staff

Recognised by Regulatory Authorities in Hong Kong

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These case studies may interest you

Contact us to learn more

Sales and Service Enquiries
Tel:(852) 2599 1600
Email: idm_sales@tradelink.com.hk
Office Hours

8:30am – 6:00pm (Monday to Friday)