{"id":6938,"date":"2025-06-06T15:53:36","date_gmt":"2025-06-06T13:53:36","guid":{"rendered":"https:\/\/podpisano-new.local\/?p=6938"},"modified":"2025-06-06T15:53:42","modified_gmt":"2025-06-06T13:53:42","slug":"podpis-kwalifikowany-offline-bezpieczenstwo-i-mobilnosc-bez-sieci","status":"publish","type":"post","link":"https:\/\/podpisano.pl\/en\/podpis-kwalifikowany-offline-bezpieczenstwo-i-mobilnosc-bez-sieci\/","title":{"rendered":"Offline qualified signature: security and mobility without network. Discuss the advantages of using a qualified signature offline."},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"6938\" class=\"elementor elementor-6938\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dc68e6e e-con-full e-flex e-con e-child\" data-id=\"dc68e6e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-bb58e09 e-con-full e-flex e-con e-child\" data-id=\"bb58e09\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-de7285e elementor-widget elementor-widget-heading\" data-id=\"de7285e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Qualified signature without the Internet - is it possible?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c1d5b0 elementor-widget elementor-widget-text-editor\" data-id=\"5c1d5b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p>\n<p><span style=\"font-weight: 400;\">Electronic signatures are an everyday occurrence nowadays - more and more documents are being signed without printing, a pen and a visit to the office. But can you sign an important document electronically <\/span><b>without internet access<\/b><span style=\"font-weight: 400;\">? The answer may surprise you: <\/span><b>yes, it's possible<\/b><span style=\"font-weight: 400;\"> - But under certain conditions.<\/span><\/p>\n<p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23011f6 elementor-widget elementor-widget-heading\" data-id=\"23011f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Do you need the Internet to sign?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c123ecb elementor-widget elementor-widget-text-editor\" data-id=\"c123ecb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p>\n<p><b>Sometimes yes, but not always.<\/b><span style=\"font-weight: 400;\"> It all depends on which electronic signature solution you use.<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">If you use <\/span><b>cloud signature<\/b><span style=\"font-weight: 400;\">, e.g. <\/span><a href=\"https:\/\/podpisano.pl\/en\/product\/simplysign\/\"><b>SimplySign<\/b><\/a><span style=\"font-weight: 400;\"> from Certum - you need the Internet because the signature works remotely. The private key (something like your digital data) is stored on a secure server, and you confirm the signature using your phone or an app. It's very convenient, but without a network it won't work.<\/span><\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">If you use <\/span><b>local signature<\/b><span style=\"font-weight: 400;\">, e.g. <\/span><a href=\"https:\/\/podpisano.pl\/en\/product\/certum-mini\/\"><b>Certum Mini<\/b><\/a><span style=\"font-weight: 400;\"> - The signature works without the Internet. You physically have your private key with you, on a cryptographic card that you insert into a USB reader. Everything happens locally on your computer - all you have to do is insert the card, launch the application and enter the PIN.<\/span><\/li>\n<\/ul>\n<p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c497906 elementor-widget elementor-widget-heading\" data-id=\"c497906\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How does a signature work without the Internet?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-303fe7a e-con-full e-flex e-con e-child\" data-id=\"303fe7a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-378dd38 elementor-widget elementor-widget-text-editor\" data-id=\"378dd38\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Qualified signature <\/span><b>offline<\/b><span style=\"font-weight: 400;\"> works if you have your certificate hardware (i.e., a USB card or token) with you. The most popular solutions are:<\/span><\/p>\n<p><b>Certum Mini<\/b><\/p>\n<p><span style=\"font-weight: 400;\">It's a kit consisting of a cryptographic card and a USB reader.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">How it works:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You connect the reader to your computer<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You insert the card<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You run the signing program\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You select a document\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You enter the PIN<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The document is signed - without any Internet connection.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">This is very convenient, for example, when traveling, on a train or in a place without coverage. You have full control over the signature - you do everything locally.<\/span><\/p>\n<p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e49a7ce elementor-widget elementor-widget-heading\" data-id=\"e49a7ce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Advantages of offline signature - Certum Mini\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f994a8 elementor-widget elementor-widget-text-editor\" data-id=\"3f994a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li><span style=\"font-weight: 400;\"><strong>Works without internet<\/strong> - You can sign the document even on an airplane or in the field.<\/span><\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<ul>\n<li><span style=\"font-weight: 400;\"><strong>Full control<\/strong> - The private key you physically have with you.<\/span><\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<ul>\n<li><span style=\"font-weight: 400;\"><strong>Security<\/strong> - Everything is done on your equipment.<\/span><\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<ul>\n<li><span style=\"font-weight: 400;\"><strong>Compliance with the law<\/strong> - signature meets the requirements of the regulation <a href=\"https:\/\/podpisano.pl\/en\/eidas-cyfrowe-zaufanie-w-unii-europejskiej-co-to-oznacza-dla-ciebie\/\">eIDAS<\/a>.<\/span><\/li>\n<\/ul>\n<p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a03da6a e-con-full e-flex e-con e-child\" data-id=\"a03da6a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3c58825 elementor-widget elementor-widget-heading\" data-id=\"3c58825\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What about signature verification and date certain?\n\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60e3818 elementor-widget elementor-widget-text-editor\" data-id=\"60e3818\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p>\n<p><span style=\"font-weight: 400;\">The signed document can be verified for the validity of the certificate. Although you sign the document without a network, the person who will later check it (e.g., an official, a contractor) <\/span><b>may need an Internet connection<\/b><span style=\"font-weight: 400;\">, to confirm whether the certificate was valid at the time of the signature.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">An important element that <\/span><b>requires an Internet connection<\/b><span style=\"font-weight: 400;\">, is <\/span><a href=\"https:\/\/podpisano.pl\/en\/elektroniczny-znacznik-czasu-czym-jest-jak-dziala-i-dlaczego-warto-go-uzywac-1-2\/\"><b>qualified time stamp<\/b><\/a><span style=\"font-weight: 400;\">. It's a digital stamp that precisely confirms the moment a document is signed. Thanks to it, the document acquires the so-called. <\/span><a href=\"https:\/\/podpisano.pl\/en\/elektroniczny-znacznik-czasu-czym-jest-jak-dziala-i-dlaczego-warto-go-uzywac-2-2\/\"><b>date certain<\/b><\/a><span style=\"font-weight: 400;\"> - That is, confirmation that it existed and was signed at a specific time.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Without time stamp qualified signature <\/span><b>has no probative value as to the date of the signature<\/b><span style=\"font-weight: 400;\">. It can then be challenged in court or official proceedings if the exact date is relevant (e.g., timeliness of a statement, compliance with a deadline in an administrative procedure). However, once you have Internet access, you can add such a timestamp - just reopen the signed document in the signature application (such as proCertum SmartSign), select the option to add a qualified timestamp and approve the operation. The system will connect to the server of the TSA (Time Stamping Authority) service, which will broadcast the time stamp, confirming when this operation was performed. It is advisable to do this as soon as possible after signing the document to preserve the full evidentiary value of the signature.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b95263f elementor-widget elementor-widget-text-editor\" data-id=\"b95263f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">An electronic signature can take <a href=\"https:\/\/podpisano.pl\/en\/wybor-podpisu-elektronicznego-na-co-zwrocic-uwage\/\">various<\/a> forms - from simple to advanced. But if you want full legal force, compliance with EU law and acceptance in public institutions, choose a qualified signature. It is <\/span><b>qualified certificate<\/b><span style=\"font-weight: 400;\"> makes your digital signature fully equivalent to a handwritten signature.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0cc47f0 elementor-widget elementor-widget-heading\" data-id=\"0cc47f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">And when is it worth choosing a cloud-based signature (e.g., SimplySign)?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-42dde55 elementor-widget elementor-widget-text-editor\" data-id=\"42dde55\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">When:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You often sign documents on your phone or tablet,<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You value convenience and mobility,<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You always have access to the Internet,<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You do not want to carry additional equipment (reader, card).<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">SimplySign is a mobile solution that works through an app. It's fast, flexible and great for people who travel a lot or work remotely.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a21bd6 elementor-widget elementor-widget-text-editor\" data-id=\"7a21bd6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p>\n<p><span style=\"font-weight: 400;\">To summarize. <span style=\"color: #0000ff;\"><strong>YES!<\/strong><\/span> \u2013 <\/span><b>you can use a qualified signature without the Internet<\/b><span style=\"font-weight: 400;\">, if you choose the right solution, such as <\/span><b>Certum Mini<\/b><span style=\"font-weight: 400;\">. This is a great option for people who want to be sure to sign a document in any situation - even without Internet access.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">However, it is worth remembering that <\/span><b>full evidentiary value<\/b><span style=\"font-weight: 400;\"> document gains only after the addition of <\/span><a href=\"https:\/\/podpisano.pl\/en\/elektroniczny-znacznik-czasu-czym-jest-jak-dziala-i-dlaczego-warto-go-uzywac-1-2\/\"><b>qualified time stamp<\/b><\/a><span style=\"font-weight: 400;\">, which confirms the date and time of the signature. And this - regardless of the chosen solution - requires access to the Internet.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In turn <\/span><b>SimplySign<\/b><span style=\"font-weight: 400;\"> is the ideal tool for those who value mobility and flexibility, but always have access to the Internet.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If you do not know which signature will be better for you -. <\/span><b>contact us<\/b><span style=\"font-weight: 400;\">. As <\/span><b>podpisano.pl<\/b><span style=\"font-weight: 400;\"> \u2013 <a href=\"https:\/\/podpisano.pl\/en\/czy-podpisano-pl-to-firma-zaufania-cyfrowego-rozwiewamy-watpliwosci\/\">authorized partner <\/a><\/span><b>Certum (Asseco Data Systems)<\/b><span style=\"font-weight: 400;\"> - We will advise you, show you the differences and help you choose the best solution.<\/span><\/p>\n<p><b>Do you want to learn more about a specific digital trust requirement or service? 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Thanks to modern solutions, you can make a qualified signature offline - quickly, securely and legally. Find out how it works and when you should use it.<\/p>","protected":false},"author":322,"featured_media":6955,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[139],"tags":[314,296,290,315,291,304],"class_list":["post-6938","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-podpisy-kwalifikowane","tag-dokumenty-elektroniczne","tag-podpis-elektroniczny","tag-podpis-kwalifikowany","tag-potwierdzenie-tozsamosci","tag-weryfikacja-podpisu-kwalifikowanego","tag-zaufanie-cyfrowe"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Podpis kwalifikowany offline: bezpiecze\u0144stwo i mobilno\u015b\u0107 bez sieci.\u00a0Om\u00f3wienie zalet korzystania z podpisu kwalifikowanego w trybie offline. - Podpisano.pl<\/title>\n<meta name=\"description\" content=\"Podpisuj dokumenty elektroniczne bez Internetu. 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