Control and manage your certificates

Greater flexibility and control when managing and signing documents

  • No installation required on any device
  • Robust authentication operations
  • Permission control on certificates
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Reasons for choosing Viafirma Fortress


From your computer, phone or tablet.
Use your digital certificates from any device or operating system, wherever and whenever.

Viafirma Fortress Desktop

Download the app for Windows and manage your digital certificates easily and quickly

Authentication Factors

Viafirma Fortress Identity robust authentication. Certifies user identity through multiple layers of authentication in Viafirma Fortress





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Delegating certificates

Delegate the use of digital certificates with the option of restricting:

  • Access to specific websites
  • Specific time slots
  •  Specific Applications


100% eIDAS Cloud Signature. Supports the world’s most demanding legal framework (eIDAS-UE) in terms of security and advanced digital signature. Full control and auditing of the use of private keys and signatures.



  • Regardless of the technology you are currently using
  • Supports your company's eBusiness solutions
  • Easy integration


Cloud signature or centralized signature is a highly secure authentication solution that improves the usability of the signature.

As the name implies, it is characterized by the way the digital certificate is stored on a secure server (HSM), and the user has access to it whenever he needs to digitally sign a document through robust authentication to verify his identity.

This ensures that the certificate is never in the hands of the owner, but instead he may use it whenever he needs to. The user can authenticate without installing any certificate or software on the device.

The fact that our certificate isn’t installed on any device it only increases its security.

If the certificate is located on a device where passwords are saved,  it’s then quite easy for someone to sign for us. However, in order to use the cloud signature, you need at least two authentication factors.

Through pre-registration, the physical identity is linked to the digital identity (enrolment), which allows to issue a personal certificate stored on a secure cloud server (HSM) that will be invoked when neccesary

For robust authentication two-factor authentication is required:

  • Something the user ”knows” (password).
  • Something the user “has” (key card, SMS Token, OTP Token).
  • Something the user ”makes or is” (signature, voice-over, fingerprint, iris or any other biometric factors).
Illustration Viafirma Fortress API


Easy integration

Any application can include authentication and electronic signature features while using our solution, thus excluding applications from any technical problems and complexities that may occur when using digital certificates. 

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how can we help?


Tell us about your signing process and we will provide you with the solution that best suits your needs