General

Questions and answers related to electronic signatures and digital certificates

When opening a signed PDF document, Adobe Acrobat Reader prompts ”At least one signature has problems”What does it mean? How can I fix it?

When we open a signed PDF, Adobe displays an error message: ”At least one signature has problems” In the new Adobe Reader version, this message will be prompt as follows: ”The validity of the document certification is UNKNOWN. The author could not be verified” This message is shown in the signature panel and in signature…

Clear cache on any web browser

To clear cache from Google Chrome, follow the steps below: In the upper right part tap on the three-point icon. Click «More tools» On the drop-down menu click «Clear browsing data» 4. On time select «all time» 5. We tick «Cached images and files» checkbox and also tick «Cookies and other site data» if it…

eHealth – Informed Consent

What is informed consent? Informed consent is a formal medical procedure aimed to apply the principle of autonomy of the patient, meaning the obligation to respect patients as individuals and to honor their medical care preferences. eSalud refers to health care practices all supported by information and communications technology (ICT) In some cases such as…

Mobile ID – Barcelona City Hall

If you have any questions about how to access to both town hall and entity services that use Mobile ID, please contact us through the following link:https://www.mobileid.cat/es/contacto/ Mobile ID is a digital identity solution on mobile device to identify you and to legally, easily and securely sign documents.

Electronic Signature formats

Depending on your specific needs or business scenarios, you may first want to choose between different e-signature format options. Viafirma offers support to both basic and most advanced formats. Basic formats These formats provide all necessary elements to create an advanced or recognized electronic signature: XML Signature It is a specification developed under the W3C…

Three types of Electronic Signatures

If we look at eIDAS regulation, based on the level of security of each three types of electronic signatures are defined: Even with different security levels, all three types of signatures are perfectly legal. Choosing one or the other will depend on each particular case, as well as the type of document you want to…

Biometric or Digitized Signature

The digitized or Biometric Signature are electronic handwritten signatures we draw on graphic tablets. However, there isn’t a single definition for these signatures in this industry. There are many different usage scenarios, for example card payments (as in Mercadona or El Corte Inglés), receiving online orders from Correos ( State-owned Spanish courier) or any other…

What are digital certificates?

Definition and types Digital certificates are digital documents through which a trusted third party (Certification Authority or Trust Service Provider) guarantees the link between the identity of a person or entity and his public key. A digital certificate can be issued in different formats and intended for different user profiles. There are certificates issued in…

Managing trusted certificates in Adobe Reader

When opening a signed PDF, Adobe Reader prompts “At least one signature requires validating” or “at least one signature has problems” in the signature panel and in the signature stamps (if any). This means that Adobe does not trust the Certificate Authority that issued the certificate, eg., FNMT Camerfirma, Firmaprofesional, AVANSI, etc) To solve this,…

What is a Certificate Authority?

A Certificate Authority (CA) is a trusted entity responsible for issuing and revoking digital certificates used in electronic signature processes. Since the entry in force of the eIDAS regulation, the Certification Authority figure in the European Union has been replaced by the Qualified Services Provider (QSP). Besides these basic functions, a Certification Authority (QSP in…

Is it possible to eSign a document without using digital certificates?

Yes. You are able to eSign a document using biometric or digitized signatures, knowing full legal support. Digitized or biometric signatures are handwritten eSignatures that do not require the use of certificates but a device that is able to capture a wealth of biometric data from the signatory. If we do not have a specific…

Does the added evidence of signature change the PDF content?

The evidence of signature, also known as stamper, seal, SVC (secure verification code) does NOT modify the content of the PDF because this is done according to the PDF signature standard This standard determines how and where these graphic representations ( or annotations depending on the PDF data dictionary) should be used, as well as…

Exporting certificates and private keys on Firefox

To export personal certificates on Firefox 2.x or higher just follow these steps: Access the “Tools” menu, “Options”, “Advanced”, “Encryption”, “View Certificates” and select the tab “Your Certificates”. We chose the certificate and click on “Backup”. Enter the path and file name that contains the exported certificate. Insert the browser master password if set. Enter…

How to install a digital certificate in macOS?

Follow these steps to install a digital certificate on any Mac computer: Double-click a digital certificate in software format (with .p12 or pfx file extension). The operating system will automatically launch the installation wizard. The Mac Keychain will start, an application in charge of managing our digital certificates (Keychain Access). Before continuing, tell the wizard…

What is the difference between exporting a certificate with a private key or without one?

If the digital certificate you are exporting is for personal use, or a backup key, we must export it with a private key. The private key must remain under the absolute control of its owner. This feature allows an electronic signature to uniquely identify the signer. On the other hand, if the goal is to…

Advanced electronic signature PAdES PDF

Learn more about PAdES PDF format to better understand the validity and integrity of eSignatures on PDFs

App blocked by JAVA security

There are times when we can find this message when using our centralized certificate in fortress. In such cases, Viafirma isn’t the blocked application but the one from the web portal. The reason for this blocking as described in the above message is that the system believes that the application from the web portal is…

SERGAS – Servizo Galego de Saúde

Please contact the following email to solve any inquiries or incidents on how to use the eSignature on the SERGAS platform:soporte.usuarios@sergas.es FIRMA (eSignature Platform) its a cross-sectional platform that provides the Galician Health System the possibility of eSigning and biometric authentication

FUNDAE Signature and authentication (Fundación Estatal para la Formación en el Empleo)

For any type of incident, we must contact the support service of the entity directly.Here you have some of the FUNDAE customer service lines:Customer Service: 902 183 183 Technical Support: 902 118 503Switchboard: 911 195 000 FUNDAE (Fundación Estatal para la Formación en el Empleo) uses Viafirma Platform both for signing a document and authentication…

How to send documents stored in Dropbox as direct download links?

In order to send documents via Dropbox without appearing the preview so that the user has access to a direct download link, we only need to make a little change on the document link. Original Dropbox link: Link:https://www.dropbox.com/s/9s03c458wfg6yn8/ejemplo.pdf?dl=0 We only have to change the last URL digit: in the “0” we place “1” instead. The…

Electronic ID card (DNI electrónico in Spanish)- frequent questions

I cannot remember my Electronic ID card PIN. How can I change it or apply for a new one? When applying for an Electronic ID card, besides obtaining an information document a “blind envelope” is delivered containing a randomly assigned PIN. If we loose this envelope we are lost as we do not know our…