Trusted PKI
certificates for signing
PKI certificates form the foundation of qualified electronic signatures. Whether you need personal, professional, or server certificates, ValidSign provides trusted certificates from KPN and Cleverbase that comply with eIDAS and PKIoverheid standards.
























What is PKIoverheid?
PKIoverheid (Public Key Infrastructure for the Dutch government) is the Dutch government's system for issuing trusted digital certificates. These certificates are used to guarantee the identity of people, organizations, and servers in digital communications.
PKIoverheid certificates meet the highest standards for electronic identification and are recognized under the eIDAS regulation. They are required for creating qualified electronic signatures (QES) that carry the same legal weight as a handwritten signature. ValidSign offers certificates from both KPN and Cleverbase, including Cleverbase cloud-based certificates that allow you to sign from anywhere without a physical token.
Types of certificates
Personal certificates
Digital certificates issued to individuals for signing documents with a qualified electronic signature. Ideal for contracts, legal documents, and any situation where personal identity must be guaranteed.
Professional certificates
Certificates issued to professionals acting on behalf of an organization. These link the signer's identity to their role within the company, providing both personal and organizational verification.
Server certificates (SSL/TLS)
Certificates for servers and systems that need to authenticate themselves and establish encrypted connections. Essential for securing web applications and API communications.
Use cases
Qualified electronic signatures
Use PKI certificates to create qualified electronic signatures (QES) that carry the highest legal weight under eIDAS regulation.
Government and public sector
PKIoverheid certificates are required for communications with Dutch government agencies and for signing official government documents.
Healthcare
Secure patient data and sign medical documents with certificates that meet the strict requirements of the healthcare sector.
Financial services
Meet regulatory requirements for document signing and secure communications in banking, insurance, and financial services.
How to get started
Choose your certificate
Select the certificate type that matches your needs: personal, professional, or server. Choose between KPN (smartcard/USB token) or Cleverbase (cloud-based).
Verify your identity
Complete the identity verification process, either online or at an approved registration authority.
Receive your certificate
Your certificate is issued and securely delivered, on a physical token (KPN) or activated in the cloud (Cleverbase), ready for signing.
Start signing
Use your PKI certificate within ValidSign to create qualified electronic signatures on your documents.
See ValidSign in action
Experience the complete signing workflow, from document upload to legally binding signature.