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Decentralized Identity
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<li><a href="/companies/ValidatedID/">• ValidatedID</a></li>
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<li><a href="/web-standards/w3c/wg/vc/verifiable-credentials/">• Verifiable Credentials</a></li>
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<ul>
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<li><a href="/organizations/decentralized-identity-foundation/">• Identity Foundation</a></li>
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<li><a href="/organizations/mydata/">• My Data</a></li>
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<li><a href="/blockchain/hyperledger/">• Hyperledger Foundation</a></li>
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<li><a href="/organizations/sovrin-foundation/">• Sovrin Foundation</a></li>
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<li><a href="https://sourcecrypto.github.io/decentralized-web/">• Decentralized Web Histories</a></li>
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<li><a href="https://sourcecrypto.github.io">• Source⧉Crypto</a></li>
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<article class="page h-entry" itemscope itemtype="https://schema.org/CreativeWork">
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<meta itemprop="headline" content="Hyperledger Ursa">
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<meta itemprop="description" content="Hyperledger Ursa is a shared cryptographic library, it enables implementations to avoid duplicating other cryptographic work and hopefully increase security in the process. The library is an opt-in repository (for Hyperledger and non Hyperledger projects) to place and use crypto. Hyperledger Ursa consists of sub-projects, which are cohesive implementations of cryptographic code or interfaces to cryptographic code.">
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<meta itemprop="datePublished" content="2021-04-16T00:00:00+13:00">
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<header>
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<h1 id="page-title" class="page__title p-name" itemprop="headline">
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<a href="https://decentralized-id.com/projects/hyperledger/ursa/" class="u-url" itemprop="url">Hyperledger Ursa
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</a>
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</h1>
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<p class="page__meta">
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<span class="page__meta-readtime">
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<i class="far fa-clock" aria-hidden="true"></i>
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1 minute read
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</p>
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</header>
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<section class="page__content e-content" itemprop="text">
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<p><a href="https://www.hyperledger.org/use/ursa">Website</a> • <a href="https://wiki.hyperledger.org/display/ursa">Wiki</a> • <a href="https://github.com/hyperledger/ursa">GitHub</a> • <a href="https://github.com/hyperledger/ursa-rfcs">RFCs</a> • <a href="hyperledger.org/ursa-docs/">Docs</a> • <a href="https://lists.hyperledger.org/g/ursa">Mailing List</a> • <a href="https://chat.hyperledger.org/channel/ursa">Chat</a> • <a href="https://www.hyperledger.org/category/hyperledger-ursa">Blog</a></p>
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<ul>
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<li><a href="https://www.hyperledger.org/hyperledger-ursa/2022/05/31/hyperledger-ursa-code-review">Hyperledger Ursa code review</a> Hyperledger 2022-05-31
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<blockquote>
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<p>Rooted in a “trust but verify” mindset, several Canadian public sector entities and <a href="https://www.interac.ca/en/">Interac</a> (Canada’s interbank network) sponsored a project at the <a href="https://idlab.org/">Digital Identity Laboratory of Canada</a> (IDLab) to perform a security and cryptography code review of Hyperledger Ursa (full report is available <a href="https://www.hyperledger.org/wp-content/uploads/2022/05/URSA-IDLab-Code-Review.pdf">here</a>).</p>
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</blockquote>
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</li>
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<li><a href="https://www.coindesk.com/hyperledger-launches-cryptography-toolbox-for-blockchain-developers">Hyperledger Launches Cryptography Toolbox for Blockchain Developers</a> 2021-09-13 Coindesk
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<blockquote>
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<p>The Linux Foundation-led group announced Tuesday that Hyperledger Ursa will act as a repository of “trusted” cryptographic implementations, aimed to make it easier for blockchain developers within its community and the wider open-source space to avoid duplication of development efforts.</p>
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</blockquote>
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</li>
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<li><a href="https://www.hyperledger.org/blog/2021/01/20/kiva-protocol-built-on-hyperledger-indy-ursa-and-aries-powers-africas-first-decentralized-national-id-system">Kiva Protocol, Built on Hyperledger Indy, Ursa and Aries, Powers Africa’s First Decentralized National ID system</a> 2021-01-20 Hyperledger
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<blockquote>
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<p>Kiva Protocol is built using Hyperledger Indy, Aries, and Ursa, and as implemented in Sierra Leone, allows citizens to perform electronic Know Your Customer (eKYC) verifications in about 11 seconds, using just their national ID number and a fingerprint. With this verification, it is possible for the nation’s unbanked to open a savings account and move into the formally banked population.</p>
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</blockquote>
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</li>
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<li><a href="https://sovrin.org/sovrin-contributes-to-hyperledger-ursa-a-win-for-cryptography-security-and-interoperability/">Sovrin contributes to Hyperledger Ursa: A win for cryptography, security, and interoperability</a> 2019-12-12 Sovrin
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<blockquote>
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<p>Ursa is a library for cryptography and the result of a collaborative effort from teams at ACM, Bitwise, DFINITY, Evernym, Fujitsu, Intel, the Linux Foundation, the Sovrin Foundation, and State Street. Duplication among blockchain project features heightens security risks. Ursa, however, gathers up crypto implementations across projects and compiles them into a single metalibrary, creating a central repository for crypto code. This way, projects can select sources of code from Ursa, instead of the original source, decreasing duplication security risks and boosting interoperability among projects.</p>
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</blockquote>
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</li>
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<li><a href="https://www.hyperledger.org/blog/2018/12/04/welcome-hyperledger-ursa">Welcome Hyperledger Ursa!</a> Hyperledger Foundation 2018-12-04
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<blockquote>
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<p>Hyperledger Ursa is the latest project to be accepted by the TSC! It is a modular, flexible cryptography library that is intended for—but not limited to—use by other projects in Hyperledger. Ursa’s objective is to make it much safer and easier for our distributed ledger projects to use existing, time tested, and trusted cryptographic libraries but also new cryptographic library implementations being developed.</p>
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</blockquote>
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<a href="/tags/#state-street" class="page__taxonomy-item p-category" rel="tag">State Street</a><span class="sep">, </span>
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<p class="page__date"><strong><i class="fas fa-fw fa-calendar-alt" aria-hidden="true"></i> Updated:</strong> <time class="dt-published" datetime="2023-06-12">June 12, 2023</time></p>
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<img src="/images/did-square.webp" alt="">
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<p class="archive__item-excerpt" itemprop="description">This page includes a breakdown of the Web Standards, Protocols,Open Source Projects, Organizations, Companies, Regions, Government and Policy surrounding Verifiable Credentials and Self Sovereign Identity.
|
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</p>
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<p class="page__meta"><strong>Updated:</strong> 2024-02-26 <i class="far fa-clock" aria-hidden="true"></i>
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4 minute read
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<small><strong>Tags:</strong></small>
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<img src="/images/Verifiable-Credentials-Flavors-Explained_jsonld-lds-teaser.webp" alt="">
|
||
</div>
|
||
|
||
<br><strong><a href="/web-standards/w3c/verifiable-credentials/data-integrity-bbs+/" rel="permalink">Verifiable Credentials with JSON-LD and BBS+ Signatures
|
||
</a></strong>
|
||
<p class="archive__item-excerpt" itemprop="description">BBS signatures were implicitly proposed by Boneh, Boyen, and Shacham (CRYPTO ’04) as part of their group signature scheme, and explicitly cast as stand-alone signatures by Camenisch and Lysyanskaya (CRYPTO ’04). A provably secure version, called BBS+, was then devised by Au, Susilo, and Mu (SCN ’...</p>
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<p class="page__meta"><strong>Updated:</strong> 2023-09-29 <i class="far fa-clock" aria-hidden="true"></i>
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8 minute read
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<small><strong>Tags:</strong></small>
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<div class="tags">BBS</div>
|
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||
<div class="tags">Data Integrity</div>
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<div class="tags">JSON-LD</div>
|
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<div class="tags">Verifiable Credentials</div>
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<div class="tags">W3C</div>
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</article>
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<img src="/images/Verifiable-Credentials-Flavors-Explained_jwt-teaser.webp" alt="">
|
||
</div>
|
||
|
||
<br><strong><a href="/web-standards/w3c/verifiable-credentials/jose-jwt+cose-cbor/" rel="permalink">Verifiable Credentials with JOSE (JWT) / COSE (CBOR)
|
||
</a></strong>
|
||
<p class="archive__item-excerpt" itemprop="description">Digital proof mechanisms, a subset of which are digital signatures, are required to ensure the protection of a verifiable credential. Having and validating proofs, which may be dependent on the syntax of the proof (for example, using the JSON Web Signature of a JSON Web Token for proofing a key h...</p>
|
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<p class="page__meta"><strong>Updated:</strong> 2023-09-09 <i class="far fa-clock" aria-hidden="true"></i>
|
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|
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|
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|
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|
||
12 minute read
|
||
</p>
|
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|
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<small><strong>Tags:</strong></small>
|
||
|
||
<div class="tags">COSE</div>
|
||
|
||
<div class="tags">IANA</div>
|
||
|
||
<div class="tags">JOSE</div>
|
||
|
||
<div class="tags">JWT</div>
|
||
|
||
<div class="tags">Verifiable Credentials</div>
|
||
|
||
<div class="tags">W3C</div>
|
||
|
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</article>
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</div>
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||
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||
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<img src="/images/Verifiable-Credentials-Flavors-Explained_zkp-cl-teaser.webp" alt="">
|
||
</div>
|
||
|
||
<br><strong><a href="/web-standards/w3c/verifiable-credentials/zkp-cl_anoncreds/" rel="permalink">Verifiable Credentials (ZKP-CL) Anoncreds
|
||
</a></strong>
|
||
<p class="archive__item-excerpt" itemprop="description">This credential format was created specifically to leverage the CL Signatures. JSON-JWT and JSON-LD Signatures each have their own way of representing the meaning of the attributes within a VC. JSON-JWT references an IANA registry and assumes a “closed world” authority model based on that authori...</p>
|
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<p class="page__meta"><strong>Updated:</strong> 2023-09-29 <i class="far fa-clock" aria-hidden="true"></i>
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6 minute read
|
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</p>
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<small><strong>Tags:</strong></small>
|
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<div class="tags">Anoncreds</div>
|
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||
<div class="tags">Evernym</div>
|
||
|
||
<div class="tags">Hyperledger Foundation</div>
|
||
|
||
<div class="tags">IBM</div>
|
||
|
||
<div class="tags">IDEMIX</div>
|
||
|
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<div class="tags">Sovrin Foundation</div>
|
||
|
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<div class="tags">Verifiable Credentials</div>
|
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<div class="tags">W3C</div>
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<div class="tags">ZKP-CL</div>
|
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