{"id":255877,"date":"2024-11-23T11:28:25","date_gmt":"2024-11-23T10:28:25","guid":{"rendered":"https:\/\/www.easyap.com\/?p=252203"},"modified":"2026-08-17T15:03:06","modified_gmt":"2026-08-17T13:03:06","slug":"tipos-de-firma-digital","status":"publish","type":"post","link":"https:\/\/www.easyap.com\/en\/blog\/tipos-de-firma-digital\/","title":{"rendered":"Types of Digital Signatures: What Exists and What You Should Know?"},"content":{"rendered":"<p><span style=\"font-weight: 400\">Digital transformation has brought numerous advantages to the business world: efficiency, agility, productivity, connectivity&#8230; A key element in this has been the digital signature. However, in this new technological landscape, there are different <\/span><b>types of digital signatures<\/b><span style=\"font-weight: 400\"> with their own characteristics, applications, and security levels. Therefore, if you are looking for efficient and secure solutions for your business, it is essential that you know <\/span><b>what types of digital signatures exist<\/b><span style=\"font-weight: 400\">, their <\/span><b>differences with the electronic signature<\/b><span style=\"font-weight: 400\"> and the <\/span><b>legal requirements that must be met<\/b><span style=\"font-weight: 400\"> in Spain to apply it to your <\/span><a href=\"http:\/\/www.easyap.com\/workflow-de-aprobacion-de-facturas\/factura-electronica\/\"><b>e-invoices. <\/b><\/a><span style=\"font-weight: 400\">Precisely what we explain to you in this article.<\/span><\/p>\n<h2><span style=\"font-weight: 400\">What is it and what types of digital signatures exist?<\/span><\/h2>\n<p><span style=\"font-weight: 400\">Technically, the digital signature is an <\/span><b>authentication mechanism that uses cryptographic algorithms to guarantee the integrity and authenticity of a document.<\/b><span style=\"font-weight: 400\"> In Spain, at a practical level, the digital signature is frequently used in digital invoicing processes, contracts, and other important documents.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Likewise, <\/span><b>there are several types of digital signatures,<\/b><span style=\"font-weight: 400\"> each with its own level of security and depending on the type of documents it is applied to. Likewise, we could establish three categories:<\/span><\/p>\n<h3><span style=\"font-weight: 400\">Simple electronic signature<\/span><\/h3>\n<p><span style=\"font-weight: 400\">We understand a simple electronic signature as <\/span><b>any type of digital signature that identifies the signatory and demonstrates their intention to sign the document.<\/b><span style=\"font-weight: 400\"> Therefore, this category can include anything from a simple acceptance click on a website to a signature on a touch screen.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\" aria-level=\"2\"><b>Security:<\/b><span style=\"font-weight: 400\"> low level. It is not considered sufficient for documents of high legal value.<\/span><\/li>\n<li style=\"font-weight: 400\" aria-level=\"2\"><b>Applications<\/b><span style=\"font-weight: 400\">: low-risk contracts or online policy consents.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400\">Advanced electronic signature<\/span><\/h3>\n<p><span style=\"font-weight: 400\">This type of signature <\/span><b>adds some additional authentication elements to the simple one, <\/b><span style=\"font-weight: 400\">such as the use of biometric data or two-factor authentication. It is able to identify the signer and allows you to verify if the document has been altered.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\" aria-level=\"2\"><b>Security<\/b><span style=\"font-weight: 400\">: medium level. It provides greater security than a simple signature, although it is still insufficient for certain highly sensitive documents in legal terms.<\/span><\/li>\n<li style=\"font-weight: 400\" aria-level=\"2\"><b>Applications<\/b><span style=\"font-weight: 400\">: signatures on medium-level contracts, such as internal agreements or expense authorizations.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400\">Qualified electronic signature<\/span><\/h3>\n<p><span style=\"font-weight: 400\">Thirdly, the qualified electronic signature is the most secure type of digital signature with the highest legal validity in the European Union. For its use <\/span><b>you will need a <\/b><a href=\"https:\/\/www.easyap.com\/en\/blog\/que-es-un-certificado-digital\/\"><b>digital certificate<\/b><\/a><b> issued by an accredited entity and a secure signature creation device.<\/b><span style=\"font-weight: 400\"> For example, cryptographic hardware.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\" aria-level=\"2\"><b>Security<\/b><span style=\"font-weight: 400\">: high level. Legally equivalent to a handwritten signature and guarantees the authenticity of the document.<\/span><\/li>\n<li style=\"font-weight: 400\" aria-level=\"2\"><b>Applications<\/b><span style=\"font-weight: 400\">: legal documents, high-value contracts, official procedures, and any document requiring maximum security and legal validity.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400\">Comparison of digital signature types<\/span><\/h2>\n<p><span style=\"font-weight: 400\">To highlight these differences between the various types of digital signatures, this comparative table is a very useful and visual tool, as it gathers and summarizes each one:&nbsp;<\/span><\/p>\n<table style=\"height: 350px;border-style: solid;border-color: #000000\" border=\"2px\">&nbsp;<\/p>\n<p><b>Signature type<\/b><br \/>\n<b>Security level<\/b><br \/>\n<b>Requirements<\/b><br \/>\n<b>Recommended applications<\/b><\/p>\n<p><span style=\"font-weight: 400\">Simple electronic signature<\/span><br \/>\n<span style=\"font-weight: 400\">Low<\/span><br \/>\n<span style=\"font-weight: 400\">No specific requirements<\/span><br \/>\n<span style=\"font-weight: 400\">Low-risk contracts, consents<\/span><\/p>\n<p><span style=\"font-weight: 400\">Advanced electronic signature<\/span><br \/>\n<span style=\"font-weight: 400\">Medium<\/span><br \/>\n<span style=\"font-weight: 400\">Additional authentication<\/span><br \/>\n<span style=\"font-weight: 400\">Internal contracts, authorizations<\/span><\/p>\n<p><span style=\"font-weight: 400\">Qualified electronic signature<\/span><br \/>\n<span style=\"font-weight: 400\">High<\/span><br \/>\n<span style=\"font-weight: 400\">Digital certificate and secure device<\/span><br \/>\n<span style=\"font-weight: 400\">Legal documents, high-value contracts<\/span><\/p>\n<\/table>\n<h2><\/h2>\n<h2><span style=\"font-weight: 400\">Differences between electronic signature and digital signature<\/span><\/h2>\n<p><span style=\"font-weight: 400\">The truth is that it is common to use the terms <\/span><b>digital signature<\/b><span style=\"font-weight: 400\"> and <\/span><b>electronic signature<\/b><span style=\"font-weight: 400\"> interchangeably. However, this is a mistake, as these two concepts actually have important differences.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\" aria-level=\"1\"><b>Electronic signature<\/b><span style=\"font-weight: 400\">: is a broad term that encompasses different methods of electronic authentication. It ranges from the most basic level of verification to advanced levels, such as the <\/span><a href=\"https:\/\/www.easyap.com\/en\/blog\/la-firma-electronica-reconocida-que-es-y-cual-es-su-papel-en-la-facturacion-electronica\/\"><b>recognized or qualified electronic signature<\/b><\/a><span style=\"font-weight: 400\">.<\/span><\/li>\n<li style=\"font-weight: 400\" aria-level=\"1\"><b>Digital signature<\/b><span style=\"font-weight: 400\">: is a specific type of electronic signature that relies on asymmetric cryptography to ensure the authenticity and security of documents. In other words, the digital signature<\/span> <span style=\"font-weight: 400\">is closely <\/span><a href=\"https:\/\/www.easyap.com\/en\/blog\/firma-digital-o-certificado-digital-son-lo-mismo\/\"><b>related to the use of a digital certificate,<\/b><\/a><span style=\"font-weight: 400\"> which verifies the signatory&#8217;s identity through cryptographic keys.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">In Spain, qualified electronic signatures are the only ones considered legally equivalent to a handwritten signature. That is, those that comply with the requirements of the <\/span><b>European regulation<\/b> <b>eIDAS<\/b><span style=\"font-weight: 400\"> (<\/span><a href=\"https:\/\/www.boe.es\/doue\/2014\/257\/L00073-00114.pdf\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">EU Regulation No 910\/2014<\/span><\/a><span style=\"font-weight: 400\">), which regulates digital identification and authentication in the European Union.<\/span><\/p>\n<h2><span style=\"font-weight: 400\">Requirements for the use of digital signatures in Spain<\/span><\/h2>\n<p><span style=\"font-weight: 400\">However, to guarantee the security and legal validity of electronically signed documents, there are some <\/span><b>legal requirements you must mee<\/b><span style=\"font-weight: 400\">t if you use digital signatures.<\/span><\/p>\n<h3><span style=\"font-weight: 400\">Authorized digital certificate<\/span><\/h3>\n<p><span style=\"font-weight: 400\">Fundamentally, qualified electronic signatures must have a digital certificate <\/span><b>issued by an<\/b> <b>Certification Authority (CA)<\/b> <b>recognized,<\/b><span style=\"font-weight: 400\"> such as the <\/span><a href=\"https:\/\/www.fnmt.es\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">National Mint and Stamp Factory (FNMT)<\/span><\/a><span style=\"font-weight: 400\">. This certificate guarantees the authenticity of the signatory&#8217;s identity.<\/span><\/p>\n<h3><span style=\"font-weight: 400\">Secure signature creation device<\/span><\/h3>\n<p><span style=\"font-weight: 400\">In turn, the qualified electronic signature <\/span><b>requires a specific device, such as a cryptographic card or a USB token. <\/b><span style=\"font-weight: 400\">With it, the signature is made securely, ensuring that only the certificate holder can sign the document.<\/span><\/p>\n<h3><span style=\"font-weight: 400\">Compliance with eIDAS regulation<\/span><\/h3>\n<p><span style=\"font-weight: 400\">Furthermore, all qualified electronic signatures must comply with the aforementioned eIDAS regulation. This way,<\/span><b> common principles are followed in the EU <\/b><span style=\"font-weight: 400\">that facilitate the recognition and validity of signatures across different member states.<\/span><\/p>\n<h3><span style=\"font-weight: 400\">Certificate Maintenance and Updates<\/span><\/h3>\n<p><span style=\"font-weight: 400\">Finally, digital certificates have a <\/span><b>limited validity period<\/b> <b>and must be renewed periodically<\/b><span style=\"font-weight: 400\"> to maintain their validity. Therefore, companies must be aware of expiration dates and manage the update of these certificates to avoid authentication problems in signed documents.<\/span><\/p>\n<h2><span style=\"font-weight: 400\">How to Implement a Digital Signature in a Company?<\/span><\/h2>\n<p><span style=\"font-weight: 400\">Regarding how to implement a digital signature system in your company, the f<\/span><b>irst step is to select the type of signature that best suits you.<\/b><span style=\"font-weight: 400\">That is, to your security needs and the legal aspects you need to comply with. <\/span><\/p>\n<p><span style=\"font-weight: 400\">Above all, <\/span><b>our recommendation is to use a <\/b><a href=\"https:\/\/www.easyap.com\/en\/workflow-de-aprobacion-de-facturas\/gestion-documental\/\"><b>document management software.<\/b><\/a> <span style=\"font-weight: 400\">With this type of solution, such as <\/span><b>easyap<\/b><span style=\"font-weight: 400\">, you can integrate digital signatures into your documents quickly and securely. This way, you delegate invoicing and business document management functions to the software.<\/span><\/p>\n<p><span style=\"font-weight: 400\">In fact, although we are not a <\/span><a href=\"https:\/\/www.easyap.com\/en\/blog\/easyap-es-un-gestor-documental\/\"><b>specific document management software<\/b><\/a><span style=\"font-weight: 400\">, we do offer this functionality and many others. Furthermore, using <\/span><b>a system like easyap&#8217;s for your integrated digital signatures offers you very interesting benefits<\/b><span style=\"font-weight: 400\"> for all your business management. Without further ado, here are some of them:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\" aria-level=\"1\"><b>Time and Resource Savings<\/b><span style=\"font-weight: 400\">. Digital signatures streamline your business processes by eliminating printing, manual signatures, and document scanning.<\/span><\/li>\n<li style=\"font-weight: 400\" aria-level=\"1\"><b>Increased Security and Fraud Protection<\/b><span style=\"font-weight: 400\">. Advanced digital signature systems like ours provide you with the highest levels of security, making any attempt at alteration difficult.<\/span><\/li>\n<li style=\"font-weight: 400\" aria-level=\"1\"><b>Legal Validity and Regulatory Compliance<\/b><span style=\"font-weight: 400\">. Qualified electronic signatures comply with the European eIDAS regulation, which guarantees the validity of your signatures and their recognition throughout the European Union.<\/span><\/li>\n<li style=\"font-weight: 400\" aria-level=\"1\"><b>Better control and monitoring<\/b><span style=\"font-weight: 400\">. These digital systems give you the ability to audit and track every signed document. This is essential for companies that handle a large volume of files.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">Ultimately, knowing the different types of digital signatures <\/span><b>helps you make informed decisions about how to manage the authentication of your documents.<\/b><span style=\"font-weight: 400\">However, each is more or less secure and valid, depending on the scenario and the needs of each company.&nbsp;<\/span><\/p>\n<p><span style=\"font-weight: 400\">It&#8217;s clear that to ensure security and legal compliance in large-scale business environments, digital signatures and digital certificates are already vital and a reality. But they will be even more so in the future.&nbsp;<\/span><\/p>\n<p><span style=\"font-weight: 400\">For this very reason, <\/span><b>now is the time to study and implement solutions like easyap.<\/b><span style=\"font-weight: 400\"> Business software that facilitates this integration of digital signatures into your business. <\/span><a href=\"https:\/\/www.easyap.com\/en\/contacto\/\"><b>Contact us<\/b><\/a><span style=\"font-weight: 400\"> and we&#8217;ll tell you more.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Digital transformation has brought numerous advantages to the business world: efficiency, agility, productivity, connectivity&#8230; A key element in this has been the digital signature. However, in this new technological landscape, there are different types of digital signatures with their own characteristics, applications, and security levels. Therefore, if you are looking for efficient and secure solutions [&hellip;]<\/p>\n","protected":false},"author":22,"featured_media":252204,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[269],"tags":[],"class_list":["post-255877","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.4 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Types of Digital Signatures: Which to Choose and Their Requirements<\/title>\n<meta name=\"description\" content=\"Learn about the types of digital signatures available in Spain, their differences from electronic signatures, and the legal requirements they must meet.\" class=\"yoast-seo-meta-tag\" \/>\n<meta name=\"robots\" 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