{"id":2182,"date":"2024-05-24T17:05:00","date_gmt":"2024-05-24T17:05:00","guid":{"rendered":"https:\/\/www.rosarioduarte.pt\/assinaturas-digitais-e-chave-movel-digital\/"},"modified":"2026-03-31T00:48:22","modified_gmt":"2026-03-31T00:48:22","slug":"assinaturas-digitais-e-chave-movel-digital","status":"publish","type":"post","link":"https:\/\/www.rosarioduarte.pt\/en\/assinaturas-digitais-e-chave-movel-digital\/","title":{"rendered":"Digital Signatures and Chave M\u00f3vel Digital"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\"><strong>What types of digital signatures exist?<\/strong><\/h3>\n\n\n\n<p><\/p>\n\n\n\n<p><br>Under the <strong>eIDAS Regulation<\/strong>, there are three levels:<\/p>\n\n\n\n<p><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Simple Electronic Signature<\/strong> \u2013 The most basic and least secure (for example, an email footer).<\/li>\n\n\n\n<li><strong>Advanced Electronic Signature (AES)<\/strong> \u2013 Offers greater security; it is uniquely linked to the signatory and allows any subsequent change to the document to be detected.<\/li>\n\n\n\n<li><strong>Qualified Electronic Signature (QES)<\/strong> \u2013 The highest level of security and the only type that has <strong>full legal equivalence to a handwritten signature<\/strong> under Portuguese and EU law.<\/li>\n<\/ol>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What is Chave M\u00f3vel Digital (CMD)?<\/strong><\/h3>\n\n\n\n<p><\/p>\n\n\n\n<p><br>The <a href=\"https:\/\/www.autenticacao.gov.pt\/a-chave-movel-digital\" target=\"_blank\" rel=\"noopener\"><strong>Chave M\u00f3vel Digital<\/strong> (Digital Mobile Key)<\/a> is a simplified authentication and digital signature system certified by the Portuguese State. When used to sign documents, it operates as a <strong>Qualified Electronic Signature<\/strong>.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Key benefits<\/strong><\/h3>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Full probative value<\/strong> \u2013 Under Article 376 of the Civil Code, a document signed with a QES has the same evidentiary value as a handwritten private document.<\/li>\n\n\n\n<li><strong>EU\u2011wide recognition<\/strong> \u2013 Thanks to the eIDAS Regulation, qualified signatures issued in Portugal are recognized in all EU Member States.<\/li>\n\n\n\n<li><strong>Versatility<\/strong> \u2013 Suitable for any document that does not legally require a public deed (for example, lease agreements and private contracts).<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How to activate it?<\/strong><\/h3>\n\n\n\n<p><\/p>\n\n\n\n<p><br>Citizens can activate <a href=\"https:\/\/www.autenticacao.gov.pt\/a-chave-movel-digital\" target=\"_blank\" rel=\"noopener\">CMD <\/a>online using their Citizen Card or Tax Portal (Finan\u00e7as) credentials, or in person at designated government service counters. <\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>&nbsp;<\/p>\n\n\n\n<p>Ana Catarina Dias | <a href=\"mailto:info@rosarioduarte.pt\">info@rosarioduarte.pt<\/a><br>\u00a0<br><a class=\"btn gray\" href=\"http:\/\/eepurl.com\/gyHAu1\" target=\"_blank\" rel=\"noopener\">Sign up for our Newsletter<\/a><\/p>\n\n\n\n<p>&nbsp;<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Contact us and\/or book a meeting <a href=\"https:\/\/www.rosarioduarte.pt\/en\/contacts\/\">here<\/a>.<\/strong><\/h5>\n","protected":false},"excerpt":{"rendered":"<p>What types of digital signatures exist? Under the eIDAS Regulation, there are three levels: What [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2182","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.rosarioduarte.pt\/en\/wp-json\/wp\/v2\/posts\/2182","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rosarioduarte.pt\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rosarioduarte.pt\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rosarioduarte.pt\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rosarioduarte.pt\/en\/wp-json\/wp\/v2\/comments?post=2182"}],"version-history":[{"count":7,"href":"https:\/\/www.rosarioduarte.pt\/en\/wp-json\/wp\/v2\/posts\/2182\/revisions"}],"predecessor-version":[{"id":2514,"href":"https:\/\/www.rosarioduarte.pt\/en\/wp-json\/wp\/v2\/posts\/2182\/revisions\/2514"}],"wp:attachment":[{"href":"https:\/\/www.rosarioduarte.pt\/en\/wp-json\/wp\/v2\/media?parent=2182"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rosarioduarte.pt\/en\/wp-json\/wp\/v2\/categories?post=2182"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rosarioduarte.pt\/en\/wp-json\/wp\/v2\/tags?post=2182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}