{"id":45165,"date":"2019-07-11T18:06:35","date_gmt":"2019-07-11T15:06:35","guid":{"rendered":"https:\/\/www.altoros.com\/blog\/?p=45165"},"modified":"2019-07-11T18:06:35","modified_gmt":"2019-07-11T15:06:35","slug":"hyperledger-aries-to-enable-blockchain-agnostic-self-sovereign-identity","status":"publish","type":"post","link":"https:\/\/www.altoros.com\/blog\/hyperledger-aries-to-enable-blockchain-agnostic-self-sovereign-identity\/","title":{"rendered":"Hyperledger Aries to Enable Blockchain-Agnostic, Self-Sovereign Identity"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/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 Content\"><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 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.altoros.com\/blog\/hyperledger-aries-to-enable-blockchain-agnostic-self-sovereign-identity\/#Focusing_on_interoperability\" >Focusing on interoperability<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.altoros.com\/blog\/hyperledger-aries-to-enable-blockchain-agnostic-self-sovereign-identity\/#What_is_Aries\" >What is Aries?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.altoros.com\/blog\/hyperledger-aries-to-enable-blockchain-agnostic-self-sovereign-identity\/#How_it_works\" >How it works<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.altoros.com\/blog\/hyperledger-aries-to-enable-blockchain-agnostic-self-sovereign-identity\/#Want_details_Watch_the_video\" >Want details? Watch the video!<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.altoros.com\/blog\/hyperledger-aries-to-enable-blockchain-agnostic-self-sovereign-identity\/#Other_Hyperledger_projects\" >Other Hyperledger projects<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.altoros.com\/blog\/hyperledger-aries-to-enable-blockchain-agnostic-self-sovereign-identity\/#About_the_expert\" >About the expert<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Focusing_on_interoperability\"><\/span>Focusing on interoperability<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>In two years since the introduction of <a href=\"https:\/\/www.altoros.com\/blog\/hyperledger-incubates-the-indy-project-to-address-identity-management\/\">Hyperledger Indy<\/a> in 2017, the scope of work within its development community has far extended beyond what was initially set in <a href=\"https:\/\/docs.google.com\/document\/d\/1YzXz0aM8w7kSp3_ao3ue9tOFwK9paofXbtBptR1Jucg\/edit?ts=5893c650\" rel=\"noopener noreferrer\" target=\"_blank\">its proposal<\/a>. To clarify and keep track of new and existing peer-to-peer interaction code for secrets management, verifiable information exchange, and secure messaging across different blockchains and other distributed ledger technologies, <a href=\"https:\/\/wiki.hyperledger.org\/display\/ARIES\/Hyperledger+Aries\" rel=\"noopener noreferrer\" target=\"_blank\">Hyperledger Aries<\/a> was set in motion.<\/p>\n<p>During a self-sovereign identity (SSI) <a href=\"https:\/\/ssimeetup.org\/hyperledger-aries-open-source-interoperable-identity-solutions-nathan-george-webinar-30\/\" rel=\"noopener noreferrer\" target=\"_blank\">webinar<\/a> in June 2019, <a href=\"https:\/\/www.linkedin.com\/in\/nathangeorge\/\" rel=\"noopener noreferrer\" target=\"_blank\">Nathan George<\/a> of the Sovrin Foundation explained how Aries stemmed from the Hyperledger Indy project to embrace non-blockchain components of a decentralized identity platform. By focusing on the information exchange, Aries looks to provide an infrastructure of tools for enabling <em>data exchange<\/em>, <em>peer-to-peer messaging<\/em>, and <em>facilitating interactions<\/em> between different distributed ledger technologies while remaining <em>blockchain-agnostic<\/em>.<\/p>\n<div id=\"attachment_45189\" style=\"width: 130px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Nathan-George.jpg\"><img decoding=\"async\" aria-describedby=\"caption-attachment-45189\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Nathan-George.jpg\" alt=\"\" width=\"120\" class=\"size-full wp-image-45189\" \/><\/a><p id=\"caption-attachment-45189\" class=\"wp-caption-text\"><small>Nathan George<\/small><\/p><\/div>\n<blockquote><p>&#8220;One of the things we found as the Hyperledger Indy community grew is that being a system that does blockchain identity means people often incorrectly focus on the blockchain component of the system. But as you start to build out applications and solutions, it turns out that this information exchange layer between different parties is the most important part of your infrastructure.&#8221;<br \/>\n\u2014Nathan George, Sovrin Foundation<\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_Aries\"><\/span>What is Aries?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Aries-Logo.png\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Aries-Logo-300x85.png\" alt=\"\" width=\"180\" class=\"alignright size-medium wp-image-45187\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.hyperledger.org\/usearies\" rel=\"noopener noreferrer\" target=\"_blank\">Aries<\/a> is the second project that spun out of <a href=\"https:\/\/www.altoros.com\/blog\/hyperledger-incubates-the-indy-project-to-address-identity-management\/\">Hyperledger Indy<\/a> (the first was <a href=\"https:\/\/wiki.hyperledger.org\/display\/ursa\" rel=\"noopener noreferrer\" target=\"_blank\">Hyperledger Ursa<\/a>). It was <a href=\"https:\/\/wiki.hyperledger.org\/display\/HYP\/Hyperledger+Aries+Proposal\" rel=\"noopener noreferrer\" target=\"_blank\">proposed<\/a> to the Hyperledger project in April 2019 and was later <a href=\"https:\/\/wiki.hyperledger.org\/display\/HYP\/2019+05+02+TSC+Minutes\" rel=\"noopener noreferrer\" target=\"_blank\">accepted<\/a> into incubation on May 2. Similar to Indy and Ursa, the primary contributor of Aries is the Sovrin Foundation.<\/p>\n<p>Aries is an infrastructure of interoperable tools for designing solutions that create, manage, and transmit digital credentials. It is a reference implementation of the agent, decentralized identifier (DID) communications, wallet, protocols, and key management technologies, which make decentralized identity possible.<\/p>\n<p>According to the Sovrin Foundation&#8217;s <a href=\"https:\/\/sovrin.org\/sovrin-proudly-contributes-to-hyperledger-aries\/\" rel=\"noopener noreferrer\" target=\"_blank\">announcement<\/a>, Aries will enable developers to use interoperable tools and libraries to make their own digital identity wallets and configure these to work with different blockchains and other distributed ledger technologies. Additionally, Aries currently provides the following features:<\/p>\n<ul>\n<li>support for multiple blockchains through the resolver interface<\/li>\n<li>secure data store interface with a vetted cryptographic library<\/li>\n<li>encrypted messaging for off-ledger communication<\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/zero-knowledge-proof-improving-privacy-for-a-blockchain\/\">zero-knowledge proof<\/a> verifiable credentials<\/li>\n<li>decentralized key management system<\/li>\n<\/ul>\n<p><center><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Sovrin-SSI-layers.png\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Sovrin-SSI-layers.png\" alt=\"\" width=\"640\" class=\"aligncenter size-full wp-image-45173\" \/><\/a><small>Aries separates layers 2 and 3 from Indy (<a href=\"https:\/\/www.slideshare.net\/SSIMeetup\/hyperledger-aries-open-source-interoperable-identity-solution-nathan-george\" rel=\"noopener noreferrer\" target=\"_blank\">Image credit<\/a>)<\/small><\/center><\/p>\n<p>During the SSI webinar, Nathan detailed that the work done by the Aries community focuses on standards and interoperability in both the credentials exchange and agent-to-agent layers of the <a href=\"https:\/\/docs.google.com\/document\/d\/1gfIz5TT0cNp2kxGMLFXr19x1uoZsruUe_0glHst2fZ8\/edit?pli=1#heading=h.n5k2u6fkhf74\" rel=\"noopener noreferrer\" target=\"_blank\">Sovrin Stack<\/a> (the governance framework layer).<\/p>\n<blockquote><p>&#8220;It really doesn&#8217;t matter which public blockchain you use, you still need a verifiable credentials exchange and  pairwise connections to exchange keys and have trust between parties, especially if you&#8217;re trying to do it in a non-correlatable way. Most of these interactions happen entirely independent of the blockchain or the public oracle, which means that the standards and interoperability work in the credentials exchange, and the agent-to-agent layers is just as important. If not more important than any interoperability and standards work that happens in the public oracle or the blockchain.&#8221; \u2014Nathan George, Sovrin Foundation<\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_it_works\"><\/span>How it works<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>With the separation of the credentials exchange and agent-to-agent layers from Indy, Aries focuses on interoperability among different agents, wallets, and credentials. Through the pluggable resolver interface, this interoperability also extends to other DID networks, such as Ethereum, Hyperledger Fabric, <a href=\"https:\/\/www.altoros.com\/blog\/hyperledgers-sawtooth-lake-aims-at-a-thousand-transactions-per-second\/\">Sawtooth<\/a>, etc.<\/p>\n<p><center><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Hyperledger-Aries-decentralized-identity-pluggable-resolver-interface.png\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Hyperledger-Aries-decentralized-identity-pluggable-resolver-interface.png\" alt=\"\" width=\"640\" class=\"aligncenter size-full wp-image-45185\" \/><\/a><small>Aries supports multiple ledger technologies (<a href=\"https:\/\/www.slideshare.net\/SSIMeetup\/hyperledger-aries-open-source-interoperable-identity-solution-nathan-george\" rel=\"noopener noreferrer\" target=\"_blank\">Image credit<\/a>)<\/small><\/center><\/p>\n<blockquote><p>&#8220;The agent architecture inside Hyperledger Aries doesn&#8217;t require centralization in order to do what you need to accomplish. It actually enables a whole broader spectrum of semi-managed services, because it allows this construct of delegation and has more infrastructure for key management than what we&#8217;re used to from cloud cryptowallet providers.&#8221; \u2014Nathan George, Sovrin Foundation<\/p><\/blockquote>\n<p>The diagram below depicts how Aries works in conjunction with Indy and Ursa. In this case, Aries leverages Ursa&#8217;s cryptolibraries to provide decentralized key management and secure secret management, such as <a href=\"https:\/\/www.altoros.com\/blog\/securing-a-blockchain-with-a-noninteractive-zero-knowledge-proof\/\">zero-knowledge proof<\/a>.<\/p>\n<p><center><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Hyperledger-Aries-architecture.png\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Hyperledger-Aries-architecture.png\" alt=\"\" width=\"640\" class=\"aligncenter size-full wp-image-45198\" \/><\/a><small>The Aries architecture within an information exchange platform (<a href=\"https:\/\/www.slideshare.net\/SSIMeetup\/hyperledger-aries-open-source-interoperable-identity-solution-nathan-george\" rel=\"noopener noreferrer\" target=\"_blank\">Image credit<\/a>)<\/small><\/center><\/p>\n<blockquote><p>&#8220;Right now, we think of Aries as an agent extension that goes on top of a decentralized system like blockchain. Over time, we&#8217;ll start to think of that in the inverse where Aries is the infrastructure toolkit that you can use to build lots of different kinds of blockchains.&#8221; \u2014Nathan George, Sovrin Foundation<\/p><\/blockquote>\n<p>With Aries just being recently incubated, most of the code repositories for Aries are still undergoing migration and development can be tracked in the project&#8217;s GitHub <a href=\"https:\/\/github.com\/hyperledger\/aries\" rel=\"noopener noreferrer\" target=\"_blank\">repo<\/a>. Interested contributors can check out the <a href=\"https:\/\/wiki.hyperledger.org\/display\/ARIES\/Aries+Working+Group\" rel=\"noopener noreferrer\" target=\"_blank\">working group<\/a>, as well as the <a href=\"https:\/\/chat.hyperledger.org\/channel\/aries\" rel=\"noopener noreferrer\" target=\"_blank\">Aries<\/a> and <a href=\"https:\/\/chat.hyperledger.org\/channel\/indy-agent\" rel=\"noopener noreferrer\" target=\"_blank\">Indy Agents<\/a> chat channels.<\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Want_details_Watch_the_video\"><\/span>Want details? Watch the video!<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><small>In this video, <a href=\"https:\/\/www.linkedin.com\/in\/nathangeorge\/\" rel=\"noopener noreferrer\" target=\"_blank\">Nathan George<\/a> provides an overview of self-sovereign identity. He then talks about the history behind Hyperledger Aries and the work being done.<\/small><\/p>\n<p><center><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/PXPZQB3VG9w\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/center><\/p>\n<p><small>You can also check out his slides from the <a href=\"https:\/\/ssimeetup.org\/hyperledger-aries-open-source-interoperable-identity-solutions-nathan-george-webinar-30\/\" rel=\"noopener noreferrer\" target=\"_blank\">webinar<\/a>.<\/small><\/p>\n<p><center><iframe loading=\"lazy\" src=\"\/\/www.slideshare.net\/slideshow\/embed_code\/key\/HwaLku9o1sAq3m\" width=\"595\" height=\"485\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" style=\"border:1px solid #CCC; border-width:1px; margin-bottom:5px; max-width: 100%;\" allowfullscreen> <\/iframe><\/center><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Other_Hyperledger_projects\"><\/span>Other Hyperledger projects<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/hyperledgers-sawtooth-lake-aims-at-a-thousand-transactions-per-second\/\">Hyperledger\u2019s Sawtooth Lake Aims at a Thousand Transactions per Second<\/a><\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/hyperledger-incubates-the-indy-project-to-address-identity-management\/\">Hyperledger Incubates the Indy Project to Address Identity Management<\/a><\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/the-iroha-project-to-bring-mobility-to-blockchain-with-simple-apis\/\">The Iroha Project to Bring Mobility to Blockchain with Simple APIs<\/a><\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/hyperledger-cello-to-govern-multi-tenant-blockchain-as-a-service\/\">Hyperledger Cello to Govern Multi-Tenant Blockchain as a Service<\/a><\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/hyperledger-grid-to-aid-supply-chains-with-blockchain-components\/\">Hyperledger Grid to Aid Supply Chains with Blockchain Components<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"About_the_expert\"><\/span>About the expert<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div>\n<div style=\"float: right;\"><a href=\"https:\/\/www.linkedin.com\/in\/nathangeorge\/\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2019\/07\/Nathan-George-bio.png\" alt=\"\" width=\"130\" class=\"aligncenter size-full wp-image-45192\" \/><\/a><\/div>\n<div style=\"width: 600px;\"><small><a href=\"https:\/\/www.linkedin.com\/in\/nathangeorge\/\" rel=\"noopener noreferrer\" target=\"_blank\">Nathan George<\/a> is the CTO of the Sovrin Foundation. He is also the chair of Hyperledger Indy\u2019s Agent working group, championing Sovrin Foundation\u2019s engagement in the open-source community through Hyperledger Indy. Nathan is a contributor to distributed identity and blockchain standards at the Decentralized Identity Foundation and the W3C. His development experience spans diverse systems\u2014including robotics, GIS, file systems, big data analytics, and attribute-based security systems.<\/small><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Focusing on interoperability<\/p>\n<p>In two years since the introduction of Hyperledger Indy in 2017, the scope of work within its development community has far extended beyond what was initially set in its proposal. To clarify and keep track of new and existing peer-to-peer interaction code for secrets management, verifiable information exchange, [&#8230;]<\/p>\n","protected":false},"author":32,"featured_media":45235,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[7],"tags":[672,807,753],"class_list":["post-45165","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-and-opinion","tag-blockchain","tag-ethereum","tag-hyperledger"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hyperledger Aries to Enable Blockchain-Agnostic, Self-Sovereign Identity | Altoros<\/title>\n<meta name=\"description\" content=\"Developers can use Aries tools and libraries to make digital identity wallets, which can be configured to work on any blockchain network.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.altoros.com\/blog\/hyperledger-aries-to-enable-blockchain-agnostic-self-sovereign-identity\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hyperledger Aries to Enable Blockchain-Agnostic, Self-Sovereign Identity | Altoros\" \/>\n<meta property=\"og:description\" content=\"Focusing on interoperability In two years since the introduction of Hyperledger Indy in 2017, the scope of work within its development community has far extended beyond what was initially set in its proposal. 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