The concept and its importance haven’t changed, but the format has. In the digital age, where technology has transformed how we live and operate, ensuring the security and authenticity of information is a necessity. For this, the digital certificate is key—an essential tool for identifying and verifying the identity of individuals and companies in the online world. Therefore, it is vital for e-invoicing. Specifically, in this article, we delve deeply into what a digital certificate is and explain why you need it for your business.
What is a Digital Certificate?
A digital certificate is an electronic file that functions as an electronic credential. It is used to authenticate the identity of an individual or a company. It is issued by a certification authority and is based on public key cryptography to ensure the security of communications and transactions carried out in the online world.
Moreover, beyond this definition of what a digital certificate is, you should know that it is an electronic document containing information about the holder’s identity and an associated public key. It is digitally signed by the certification authority, which guarantees its authenticity and, therefore, enables the secure exchange of various types of information through electronic channels.
What is a Digital Certificate used for?
Currently, thanks to its format and characteristics, a digital certificate has several uses in the digital environment. One of its main functions is to enable the electronic signing of documents and online transactions. By using it, you guarantee the integrity and authenticity of the information in your invoices and documents, thus preventing counterfeiting and fraud.
However, in addition to its use as an electronic signature, the digital certificate is also used for data encryption. With it, you can encrypt information so that only the authorized recipient can decrypt it. Therefore, it is a tool that provides privacy and confidentiality in your electronic communications with clients and suppliers.
Types of Digital Certificates
Now that we have described what a digital certificate is and its importance, we must look at the different types available. Today, you can find different types of certificates digital, which adapt to the specific needs of each person or entity. Below, we present some examples of digital certificates:
- Digital certificate for individuals. This first type of certificate we mention is issued for individuals. It serves to identify and authenticate their online identity and is widely used in bureaucratic procedures, online banking management, and other digital administrative services.
- Digital certificate for legal entities. This certificate is intended for companies and organizations of all types. Similarly, it serves to identify and authenticate the identity of an entity, as well as its authorized representatives acting on its behalf.
- Server certificate. Finally, this type of digital certificate is used on websites and servers to guarantee the authenticity and security of the connection. Thanks to it, secure communications can be established via the HTTPS protocol.
Which one should you use? The answer will depend on its intended use and your legal structure. That is, whether you are a large company, a self-employed individual, or if you will use your certificate for personal online procedures.
Benefits of a Digital Certificate
Due to the characteristics we have mentioned above, the digital certificate offers you various benefits,whether you are an individual or you are going to use it for your business operations. These advantages are, primarily, those we detail below.
High security
An electronic certificate provides you with a high level of security. Whether for commercial operations of any type or in administrative management, it is a perfect tool to guarantee the authenticity of the information in your invoices and files. Likewise, it helps prevent identity theft.
Greater agility and efficiency
Like most applications, platforms, and digital tools, these certificates facilitate the completion of procedures and any electronic transaction. Therefore, you carry out any management in a much more agile way. In addition, you eliminate the need for physical travel and, for all these reasons, reduce the time and costs associated with transportation, procedures, and bureaucratic processes.
International legal validity
Another major benefit offered by the digital certificate is that it has international legal validity. That is why you can use it to sign contracts, make tax declarations, and comply with other legal requirements in many countries, regardless of your sector.
How to obtain the digital certificate?
So, how can you apply for your digital certificate? To obtain one, you need to follow the two steps we detail:
- First, it is necessary that you request the certificate from a trusted certification authority. This entity will verify your identity and issue the corresponding digital certificate.
- Once issued, you yourself can download and install it on the device of your choice.
After this, all that will remain is to activate it. In this regard, it is important that you follow the instructions provided by the certification authority that issued it to you. This way, you will ensure that the certificate is installed correctly and can be used effectively for your operations.
Where can it be requested?
And if in the previous point we indicated how you can obtain it, in this section we will address another important question: where can a digital certificate be requested? You can apply for a digital certificate from different authorized entities and organizations.
In a good number of countries, government bodies are responsible for issuing digital certificates. However, there are also private and authorized entities that offer digital certificate issuance services.
In Spain, there are several authorized entities and organizations where you can apply for a digital certificate. Some of the most common options are:
- FNMT (National Mint and Stamp Factory). The FNMT is a public entity that issues digital certificates recognized throughout Spanish territory. Through its website, you can access the digital certificates section and follow the steps to apply for one.
- CERES (Spanish Certification). CERES is a digital certification platform supported by the Ministry of Industry, Energy, and Tourism of Spain. Through its website, you can request a digital certificate by following its procedure.
- Private certification authorities. In addition to government entities, there are various recognized private certification authorities in Spain. Some of the most popular are Izenpe, Camerfirma, the Notarial Certification Agency (ANCERT), among others. These offer electronic certificate issuance services for individuals and legal entities.
You should also know that the requirements and procedures for applying for a digital certificate may vary depending on the issuing entityTherefore, visit their website to obtain updated information on the steps to follow and the documents you need to submit. The most important thing is to research and select a secure and recognized authority. This will guarantee the validity of your certificate.
Why is it important for companies looking to digitalize?
In the current context, the digitalization of companies has become increasingly important. The adoption of digital technologies and the execution of online procedures and operations are fundamental for improving the efficiency and competitiveness of organizations.
In this new scenario, the digital certificate plays a fundamental role, as it provides security and trust in digital transactions and processes. It allows companies to sign contracts electronically, file tax declarations online, communicate securely with suppliers and customers, among many other applications. Even for business processes as relevant as electronic invoicing.
easyap’s relationship with digital certificates
It is at this point, precisely, where we come in. At easyap, we are aware of the great importance of digital certificates in today’s business environment. In fact, we have already touched upon this topic with articles such as the one we published about what certified digitalization is.
Considering all of the above, our electronic invoicing software is designed to facilitate and streamline processes. To do this, we work and develop solutions using secure technologies such as electronic signatures.
That is why, our clients can apply for and use their digital certificate to electronically sign their invoices and other documents.In this way, we guarantee the authenticity and integrity of their information and, at the same time, we streamline invoicing processes. Therefore,we generate considerable savings in time and resources for companies.
In summary, the digital certificate is a key tool in this new digital era. It provides security, authenticity, and efficiency in online operations and management. Furthermore, it is necessary to guarantee the legal validity of online documents and to undertake successful digitalization processes. At easyap, we are committed to providing solutions that facilitate and optimize the use of these electronic certificates in the realm of online invoicing. Do you want to know more or how? Contact us.

