{"id":8012,"date":"2025-03-28T09:00:00","date_gmt":"2025-03-28T08:00:00","guid":{"rendered":"https:\/\/blog.structuralia.com\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana"},"modified":"2026-03-27T13:46:01","modified_gmt":"2026-03-27T12:46:01","slug":"proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana","status":"publish","type":"post","link":"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana","title":{"rendered":"Master's Thesis Project: Distributed Ledger Technologies Applied to Digital and Self-Sovereign Identity"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\"><\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#Proyecto_TFM_Tecnologias_de_registro_distribuido_DLT_aplicadas_a_la_identidad_digital_y_auto_soberana_SSI\" >Master's Thesis Project: Distributed Ledger Technologies (DLT) Applied to Digital Identity and Self-Sovereign Identity (SSI)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#Objetivos_del_TFM\" >Objectives of the Master's Thesis<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#Objetivos_teoricos\" >Theoretical Objectives:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#%C2%BFPor_que_es_tan_importante_el_concepto_de_identidad_para_nuestra_existencia_tanto_fisica_como_digital\" >Why is the concept of identity so important to our physical and digital existence?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#Definicion_de_Identidad\" >Definition of Identity<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#%C2%BFEs_la_identidad_es_un_derecho_ligado_al_ser_humano\" >Is identity a human right?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#Identidad_Autosoberana\" >Self-Sovereign Identity<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#Soluciones_de_Identidad_Digital_en_Blockchain\" >Blockchain-Based Digital Identity Solutions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#Pruebas_de_conocimiento_cero_Zero_Knowledge_Proofs\" >Zero-Knowledge Proofs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#Conclusiones\" >Conclusions<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#RESENA_DEL_AUTOR\" >AUTHOR'S REVIEW:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/blog.structuralia.com\/en\/proyecto-tfm-tecnologias-de-registro-distribuido-aplicadas-a-la-identidad-digital-y-auto-soberana\/#TESTIMONIO_DEL_AUTOR\" >AUTHOR'S STATEMENT:<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\"><strong>How can we demonstrate the importance of identity in an increasingly digital society?<\/strong> This interesting master's thesis explores this topic in depth.<\/p>\n\n\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Proyecto_TFM_Tecnologias_de_registro_distribuido_DLT_aplicadas_a_la_identidad_digital_y_auto_soberana_SSI\"><\/span><strong>Master's Thesis Project: Distributed Ledger Technologies (DLT) Applied to Digital Identity and Self-Sovereign Identity (SSI)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The work carried out by <a href=\"https:\/\/www.linkedin.com\/in\/bjlanza\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Borja Lanza<\/strong><\/a> former student the <a href=\"https:\/\/academy.structuralia.com\/masters\/master-ciberseguridad-gestion-riesgos-informacion\" target=\"_blank\" rel=\"noreferrer noopener\">Master's Degree in Cybersecurity and Information Management<\/a> in <strong>Structuralia<\/strong> and supervised by <em>\u00d3scar Garc\u00eda-Rama<\/em> addressed the<strong> synergies that distributed ledger technologies (DLT) can provide<\/strong> whose most popular exhibit is <strong>blockchain<\/strong>, to <strong>digital identity management and security.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>blockchains<\/strong> since they are designed to ensure the traceability and transparency of transactions, as they are signed using<strong> cryptographic methods<\/strong>, make it impossible for them to be manipulated or falsified by malicious actors. This immutability, combined with the fact that they are distributed systems, prevents censorship and can facilitate the creation of digital identities that solve the problems faced by more than one billion people who currently lack any form of identity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Our data is becoming increasingly vulnerable<\/strong> since we have to manage multiple identities or user accounts. This isn't limited to social media or websites, but also applies to<strong> To carry out administrative procedures with government agencies, we must have the necessary resources<\/strong> that allow us to be identified and authorized to carry out these procedures in a secure and reliable manner.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Regaining control over our data to manage who has access to it and for what purposes is another problem that blockchain can ideally solve. Having a single, reliable source of truth makes it much easier to authenticate and verify a digital identity without compromising the identity owner\u2019s privacy, thereby enhancing cybersecurity. <strong>mitigating the risks of identity theft and identity fraud.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The research addresses this issue from a theoretical framework, <strong>The State of the Art in DLT Applications<\/strong> and specifically <strong>Blockchain and Digital Identity Management,<\/strong> by reviewing the technologies involved and current or future solutions within a short period of time.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Objetivos_del_TFM\"><\/span><strong>Objectives of the Master's Thesis<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The following objectives were set for the completion of the master's thesis.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Objetivos_teoricos\"><\/span>Theoretical Objectives:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Conduct a study on the current state of the art in the application of blockchain technologies to digital identity.<\/li>\n\n\n\n<li>Identify disruptive applications of DLT technologies and their use cases.<\/li>\n\n\n\n<li>Define best practices for the application of these technologies, primarily in the areas of identity, privacy, and cybersecurity<\/li>\n\n\n\n<li>Summarize the findings and identify future trends in the field of study addressed in this paper.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Personally, I also chose this topic to gain a clear and comprehensive understanding of the concepts related to digital identity\u2014particularly self-sovereign identity\u2014as well as blockchain and DLT technologies applied to identity, along with the basic fundamentals of related technologies.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFPor_que_es_tan_importante_el_concepto_de_identidad_para_nuestra_existencia_tanto_fisica_como_digital\"><\/span><strong>Why<\/strong><strong>&nbsp;Why is the concept of identity so important to our physical and digital existence?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Definicion_de_Identidad\"><\/span>Definition of Identity<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Some definitions of \"identity\" from the DRAE are<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>A set of characteristics specific to an individual or a group that distinguish them from others.<\/li>\n\n\n\n<li>f. A person\u2019s or group\u2019s awareness of being itself and distinct from others.<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFEs_la_identidad_es_un_derecho_ligado_al_ser_humano\"><\/span>Is identity a human right?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Within the global consensus represented by the 1948 Universal Declaration of Human Rights (UDHR), the term \u201cidentity\u201d is not mentioned even once throughout the entire text.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We can state with certainty that if individuals are not properly identified and do not have a unique identity, they cannot exercise the rights defined in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Article 6: Every human being has the right, everywhere, to recognition as a legal person.<\/li>\n\n\n\n<li>Article 15.1: Everyone has the right to a nationality.<\/li>\n\n\n\n<li>Article 17: Everyone has the right to own property, individually and collectively.\u00a0<\/li>\n\n\n\n<li>Other rights, such as the right to marry (Article 16), the right to participate in the government of one's country (Article 21), and the right to social security (Article 22),\u00a0<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">All of these articles relate to a person\u2019s identification, their access to those rights, and the maintenance of a registry that ensures the protection of those rights. Therefore, a person\u2019s right to an identity is fundamental to the exercise of those basic rights.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"430\" src=\"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/a5C5SWljW6aVndQXyxOH8isavnNrVIdPx6CoSQcV3StWyB4jC0XLRk3aZvNfrpIaSnTiH7tmKMOOF0YfdZuDa0T_ueAz9wUOqnUb-1024x430.png\" alt=\"\" class=\"wp-image-12323\" srcset=\"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/a5C5SWljW6aVndQXyxOH8isavnNrVIdPx6CoSQcV3StWyB4jC0XLRk3aZvNfrpIaSnTiH7tmKMOOF0YfdZuDa0T_ueAz9wUOqnUb-1024x430.png 1024w, https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/a5C5SWljW6aVndQXyxOH8isavnNrVIdPx6CoSQcV3StWyB4jC0XLRk3aZvNfrpIaSnTiH7tmKMOOF0YfdZuDa0T_ueAz9wUOqnUb-300x126.png 300w, https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/a5C5SWljW6aVndQXyxOH8isavnNrVIdPx6CoSQcV3StWyB4jC0XLRk3aZvNfrpIaSnTiH7tmKMOOF0YfdZuDa0T_ueAz9wUOqnUb-768x322.png 768w, https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/a5C5SWljW6aVndQXyxOH8isavnNrVIdPx6CoSQcV3StWyB4jC0XLRk3aZvNfrpIaSnTiH7tmKMOOF0YfdZuDa0T_ueAz9wUOqnUb.png 1167w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Figure 1: Examples of identity-related data in three different contexts.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Identidad_Autosoberana\"><\/span><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif; color: #b22b3b;\"><strong>Self-Sovereign Identity<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">There is currently no full consensus on the definition of self-sovereign identity.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The <span style=\"font-weight: bold;\">self-sovereign identity<\/span> It is the next step beyond user-centered identity, and this means it must start in the same place: the user must be at the center of identity management. This requires not only the <span style=\"font-weight: bold;\">identity interoperability<\/span> not only the ability for a user to manage their identity across multiple locations, with the user's consent, but also true control over that digital identity, thereby creating genuine independence for the user.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">To achieve this, a self-sufficient identity <span style=\"font-weight: bold;\">it must be portable;<\/span> It cannot be limited to a single site or location.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">One of the pioneers of identity <span style=\"color: #ff3b49;\"><a style=\"font-style: italic; text-decoration: underline; color: #ff3b49;\" href=\"https:\/\/www.selfsovereignidentity.it\/los-10-principios-de-la-self-soveregn-identity\/\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"background-color: #ffffff;\">Christopher Allen <\/span><\/a><\/span>In 2016, it established 10 principles for self-sovereign identity that have become a benchmark in the field.&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">These principles are:<\/span><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Access<\/strong>: Users must have access to their own data.<\/span><\/p><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Consent<\/strong>: Users must first consent to the use of their identity by third parties.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Control<\/strong>: Users must be able to control their identities.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Existence<\/strong>: Users must be independent entities.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Interoperability<\/strong>: Identities should be widely usable.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Minimization<\/strong>: The disclosure of claims should be reduced.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Persistence:<\/strong> Identities must be enduring.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Protection<\/strong>: Users' rights must be protected.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Portability<\/strong>: Identity-related information and services must be portable.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Transparency<\/strong>: Systems and algorithms must be transparent.<\/span><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Self-sovereign identity is considered to be a <span style=\"font-weight: bold;\">digital identity model, provided it complies with the following 16 principles.&nbsp;<\/span><\/span><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">People can generate their own<span style=\"font-weight: bold;\"> unique identifiers<\/span>s (control, existence).<\/span><\/p><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">People have the <span style=\"font-weight: bold;\">management of their authenticators<\/span> (access, control, existence).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">People have e<span style=\"font-weight: bold;\">Verification of their digital credentials and certificates<\/span> (access, control, existence).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">People can<span style=\"font-weight: bold;\"> recover credentials and certificates<\/span> in the event of loss or theft of your authenticators (access, control, existence, persistence, and protection).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">People<span style=\"font-weight: bold;\"> manage and monitor the associated data<\/span> with their digital identity (access, control).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">People can do <span style=\"font-weight: bold;\">selective data disclosures<\/span> (consent, control, minimization, protection).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The <span style=\"font-weight: bold;\">personally identifiable information (PII)<\/span> of individuals is minimized (minimization, protection).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The <span style=\"font-weight: bold;\">cryptographic tests<\/span> Information about the ownership of identifiers can be found at\u2026<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"> an r<\/span><span style=\"font-weight: bold;\">decentralized public education<\/span><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif; background-color: transparent;\"> (interoperability, persistence, transparency).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The cryptographic proofs of the <span style=\"font-weight: bold;\">ownership and the validity of credentials<\/span> can be found in<\/span><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif; background-color: transparent;\">n\u2026<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif; background-color: transparent;\">a decentralized public network (interoperability, persistence, transparency).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The<span style=\"font-weight: bold;\"> right to be forgotten<\/span> is guaranteed (protection).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The <span style=\"font-weight: bold;\">identity management units<\/span> (digital wallets) are <span style=\"font-weight: bold;\">laptops<\/span> (portability).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The<span style=\"font-weight: bold;\"> digital wallet providers<\/span> They do not have access to information about individuals' access to services or their interactions with others (access, control, protection).<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The <span style=\"font-weight: bold;\">backups <\/span>ensure the highest levels of security and privacy (persistence, protection).<\/span><\/li>\n\n\n\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The implementations comply with the <span style=\"font-weight: bold;\">regulatory policies<\/span> (protection).<\/span><\/p><\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Soluciones_de_Identidad_Digital_en_Blockchain\"><\/span><span style=\"color: #b22b3b; font-family: Tahoma, Arial, Helvetica, sans-serif;\"><span style=\"font-weight: bold;\">Blockchain-Based Digital Identity Solutions<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The study also analyzed some of the <span style=\"font-weight: bold;\">various blockchain-based identity solutions<\/span> available in June 2021.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Apart from <span style=\"background-color: #ffffff;\"><em>Sovrin and Hyperledger Indy<\/em> <\/span>The Spanish development driven by <span style=\"text-decoration: underline;\"><span style=\"color: #ff3b49;\"><a style=\"color: #ff3b49;\" href=\"https:\/\/alastria.io\/\" target=\"_blank\" rel=\"nofollow noopener\">Alastria<\/a>.<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><span style=\"font-weight: bold;\">AlastriaID<\/span> is the p<span style=\"font-weight: bold;\">Alastria Identity Commission's Digital Identity Project<\/span>. Its proposal for a blockchain-based digital identity aims to provide an infrastructure and development framework for implementing sovereign digital identity projects with full legal validity in the eurozone, based on the following principles:<\/span><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Establish a framework for utilizing SSI via blockchain, in accordance with the SSI eIDAS Legal Report, also known as the \u00abeIDAS Bridge.\u00bb.<\/span><\/p><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Follow the guidelines set forth in the Report of the Electronic Identity Workshop, published by the EUBlockchain Observatory and Forum.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Comply with the eIDAS Regulation, pursuant to Regulation (EU) No. 910\/2014 of the European Parliament and of the Council of July 23, 2014, on electronic identification and trust services for electronic transactions in the internal market and repealing Directive 1999\/93\/EC.<\/span><\/li>\n\n\n\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Make digital identity on the blockchain and the GDPR two complementary tools, following the recommendations outlined by the EUBlockchain Observatory and Forum and the study by the European Parliament\u2019s Research Service.<\/span><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Alastria ID is a mature model that complies with W3C standards and has served as the basis for the <span style=\"text-decoration: underline;\"><span style=\"color: #ff3b49;\"><a style=\"color: #ff3b49;\" href=\"https:\/\/essif-lab.eu\/\" target=\"_blank\" rel=\"nofollow noopener\">European Self-Sovereign Identity Framework (ESSIF)<\/a><\/span><\/span> and the standardization processes of UNE, CEN\/CENELEC, ETSI, ITU, and ISO; it is considered a de facto standard. It is interoperable with ESSIF, a European SSI project within EBSI and promoted by the EBP. It is currently the UNE 71307 standard.&nbsp;<\/span><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/1O7xBc2YftWkbolaG0-wCO93Yem8hVTuoV92qtyx3LrptPfvHnNc6DoGHLa8yFR_-qSwsTmHl8d1FGbiGBU5C-ZdGRdL4Ddxyn_1.png\" alt=\"\" class=\"wp-image-12324\" srcset=\"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/1O7xBc2YftWkbolaG0-wCO93Yem8hVTuoV92qtyx3LrptPfvHnNc6DoGHLa8yFR_-qSwsTmHl8d1FGbiGBU5C-ZdGRdL4Ddxyn_1.png 1024w, https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/1O7xBc2YftWkbolaG0-wCO93Yem8hVTuoV92qtyx3LrptPfvHnNc6DoGHLa8yFR_-qSwsTmHl8d1FGbiGBU5C-ZdGRdL4Ddxyn_1-300x158.png 300w, https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/1O7xBc2YftWkbolaG0-wCO93Yem8hVTuoV92qtyx3LrptPfvHnNc6DoGHLa8yFR_-qSwsTmHl8d1FGbiGBU5C-ZdGRdL4Ddxyn_1-768x404.png 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Figure 2: Alastria ID and the 10 Key Principles of SSI.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pruebas_de_conocimiento_cero_Zero_Knowledge_Proofs\"><\/span><span style=\"color: #b22b3b; font-family: Tahoma, Arial, Helvetica, sans-serif;\"><span style=\"font-weight: bold;\">Zero-Knowledge Proofs<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The <a href=\"https:\/\/es.wikipedia.org\/wiki\/Prueba_de_conocimiento_cero\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"color: #ff3b49;\">zero-knowledge proofs <\/span><\/a>They enable one party to an interaction to prove to the other parties involved that a statement it makes is true, without revealing any information beyond the validity of the statement itself.&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The parties involved are commonly referred to as <strong>demonstrators<\/strong> y <strong>verifiers<\/strong>, and the statement they share privately and securely is called <strong>witness<\/strong>. Its main objective is to disclose as little information as possible between the two parties involved.&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Zero-knowledge proofs are used to verify that one possesses a specific piece of knowledge without revealing any information about the knowledge itself.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Some examples of ZKP applications include:<\/span><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Prove that a person is of legal age without revealing their date of birth or current age.<\/span><\/p><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Registering as a resident in a town without providing a home address, while still being able to use the services of the city government where one legally resides.\u00a0<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">To demonstrate that you have a minimum amount of money to cover a payment or purchase, without showing your total balance or assets that serve as collateral.\u00a0<\/span><\/li>\n\n\n\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">To demonstrate that one has specific permits and licenses that allow a vehicle to be driven without compromising the owner's privacy.<\/span><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Knowledge tests are often used in computer science to:<\/span><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Verify one's identity (for example, authentication protocol).<\/span><\/p><\/li>\n\n\n\n<li><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">To prove that one belongs to a privileged group.<\/span><\/li>\n\n\n\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">To prove that something has been done correctly (make a payment).<\/span><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">For a ZKP to work, certain parameters must be met:<\/span><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Comprehensiveness<\/strong>: If the statement is true, then an honest verifier can be convinced of this by an honest prover.<\/span><\/p><\/li>\n\n\n\n<li><p style=\"text-align: justify;\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><strong>Solidity<\/strong>: If the prover is dishonest, they cannot convince the verifier of the validity of the statement by lying.<\/span><\/p><\/li>\n\n\n\n<li><p style=\"text-align: justify;\"><strong style=\"font-family: Tahoma, Arial, Helvetica, sans-serif; background-color: transparent;\">Zero Knowledge<\/strong><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif; background-color: transparent;\">: If the statement is true, the verifier will have no idea what the statement actually is.<\/span><\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusiones\"><\/span><span style=\"color: #b22b3b; font-family: Tahoma, Arial, Helvetica, sans-serif;\"><span style=\"font-weight: bold;\">Conclusions<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">The research for my master's thesis allowed me to <span style=\"font-weight: bold;\">to examine the importance of identity in an increasingly digitized society where people are defined by different identities.<\/span> These identities are at risk for various reasons <span style=\"font-weight: bold;\">cyber threats<\/span> such as identity theft, phishing, and credential theft, which can have a significant impact\u2014not only financial\u2014when one of our identities is compromised or stolen, such as a social media profile.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Therefore, <span style=\"font-weight: bold;\">We need to be aware of all the rights and tools at our disposal<\/span> to protect our personal information, which is used to track and analyze our behavior, given the risk of an invasion of our privacy or surveillance of our movements and thoughts.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\"><span style=\"font-weight: bold;\">Distributed ledger technologies (DLT),<\/span> \u2014of which blockchain is the prime example\u2014provide the technological foundation needed to ensure that control in a secure, resilient, and robust manner. These technologies have made tremendous strides in recent years and are transforming the way value is exchanged.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif;\">Although they are best known for their application in cryptocurrencies, their use in the field of digital identity is one of the most revolutionary, especially in<span style=\"font-weight: bold;\"> Self-Sovereign Identities (SSI).<\/span> Integration with other technologies such as <span style=\"font-weight: bold;\">zero-knowledge proofs (ZKP)<\/span> will represent a major step forward in how we interact in the digital world, <span style=\"font-weight: bold;\">providing greater trust, security, privacy, and control over our data,<\/span> while ensuring their confidentiality, integrity, and availability.<\/span><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"font-family: Tahoma, Arial, Helvetica, sans-serif; background-color: #ffffff;\">In&nbsp;<strong>Structuralia<\/strong>&nbsp;We would like to thank [name] for their outstanding work and initiative.&nbsp;<strong>Borja Lanza<\/strong> and his master's thesis project. Do you want to build your professional future just like Borja? You can visit our website at <span style=\"color: #ff3b49;\"><a style=\"color: #ff3b49; text-decoration: underline; background-color: #ffffff;\" href=\"https:\/\/www.structuralia.com\/\" target=\"_blank\" rel=\"noopener\">Structuralia<\/a><\/span>&nbsp;and to explore the significant amount of training material in this sector, as well as the variety of&nbsp;<span style=\"color: #ff3b49;\"><a style=\"color: #ff3b49; text-decoration: underline; background-color: #ffffff;\" href=\"https:\/\/academy.structuralia.com\/search\" target=\"_blank\" rel=\"noopener\">specialized master's degrees<\/a><\/span> what you need to achieve your goals.<\/span><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"RESENA_DEL_AUTOR\"><\/span><em><strong>AUTHOR'S REVIEW:<\/strong><\/em><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><\/strong><a href=\"https:\/\/www.linkedin.com\/in\/bjlanza\" target=\"_blank\" rel=\"noreferrer noopener\">Borja Javier Lanza L\u00f3pez <\/a>holds a bachelor's degree in multimedia, <strong>Master's Degree in Multimedia Applications<\/strong> y <strong>University-Specific Master's Degree in Business Intelligence and Big Data<\/strong> by the UOC (Open University of Catalonia).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As <strong>new technology professional<\/strong> has continued to keep up with the latest developments thanks to the <strong>Master's Degree in Cybersecurity and Information Risk Management<\/strong> endorsed by Alfonso X el Sabio University and the <strong>International Master's Degree in Innovation Management<\/strong> Endorsed by Isabel I International University in Spain; both courses are taught by Structuralia<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">He has built his professional career as a trainer and technology consultant, focusing primarily on blockchain and cybersecurity in digital transformation projects.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"TESTIMONIO_DEL_AUTOR\"><\/span><em><strong>AUTHOR'S STATEMENT:<\/strong><\/em><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. What would you highlight most about the master's program?<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em>\u00abThe Master's Degree in Cybersecurity and Information Risk Management provides a broad and comprehensive foundation in the various aspects that make up a field as broad and interdisciplinary as cybersecurity.<\/em><em>\u00ab<\/em><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. How do you think this will help you in your professional development?<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em>\u00bbCybersecurity is one of the most in-demand fields today, and there is a shortage of professionals in this area. Earning specialized, recognized training is one way to demonstrate the knowledge needed to start a career in this field.\".<\/em><em>\u00ab<\/em><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. Why did you choose Structuralia?<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em>\u00ab<\/em>The convenience and freedom of being able to study anytime, anywhere\u2014especially during difficult times like these\u2014while earning an official degree from a recognized university.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00bbThe opportunity to apply for scholarships from the Organization of American States (OAS) is a bonus that allows you to pursue cutting-edge master's programs at an affordable cost and meet people from different countries.\"<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Throughout the academic year, Structuralia hosts numerous master classes open to all students, featuring professionals from various master's programs who greatly enrich the learning experience.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"439\" src=\"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/3a93582e-969c-41a3-9c94-5133686fe9ed-1024x439.png\" alt=\"\" class=\"wp-image-12325\" srcset=\"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/3a93582e-969c-41a3-9c94-5133686fe9ed-1024x439.png 1024w, https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/3a93582e-969c-41a3-9c94-5133686fe9ed-300x129.png 300w, https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/3a93582e-969c-41a3-9c94-5133686fe9ed-768x329.png 768w, https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/03\/3a93582e-969c-41a3-9c94-5133686fe9ed.png 1520w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"<p>How can we assess the importance of identity in an increasingly digitized society? This interesting master's thesis explores this topic in depth.<\/p>","protected":false},"author":9,"featured_media":8388,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_ayudawp_aiss_exclude":false,"_ayudawp_aiss_summary":"","_ayudawp_aiss_summary_provider":"","_ayudawp_aiss_summary_hash":"","footnotes":""},"categories":[266],"tags":[],"class_list":["post-8012","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-transformacion-digital"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Proyecto TFM: Tecnolog\u00edas de registro distribuido aplicadas a la identidad digital y auto soberana - Blog de Structuralia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/posts\/8012\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Proyecto TFM: Tecnolog\u00edas de registro distribuido aplicadas a la identidad digital y auto soberana - Blog de Structuralia\" \/>\n<meta property=\"og:description\" content=\"\u00bfC\u00f3mo podemos comprobar la importancia de la Identidad en una sociedad cada vez m\u00e1s digitalizada? 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