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@ -68,14 +68,14 @@ last_modified_at: 2020-01-07
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<center><iframe src="//www.slideshare.net/slideshow/embed_code/key/B2YIOdRYlqiiPd" 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>
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<a href="//www.slideshare.net/SSIMeetup/dids-demystified-a-handson-intro-to-dids-via-the-bitcoin-reference-btcr-did-method" title="DIDs Demystified: A hands-on intro to DIDs via the Bitcoin Reference (BTCR) DID Method" target="_blank">DIDs Demystified: A hands-on intro to DIDs via the Bitcoin Reference (BTCR) DID Method</a>
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## ION
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[Microsoft is launching the first decentralized infrastructure implementation by a major tech company that is built directly on the bitcoin blockchain.](https://www.coindesk.com/microsoft-launches-decentralized-identity-tool-on-bitcoin-blockchain)
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> “To have Microsoft say they are not scared of bitcoin, and in fact, it has some very good properties and we are willing to take advantage of those properties, is, I think, a step in the right direction.”
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<center><iframe src="//www.slideshare.net/slideshow/embed_code/key/e4v6fZdFL5fdu3" 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>
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<a href="//www.slideshare.net/SSIMeetup/introduction-to-ion-a-layer-2-network-for-decentralized-identifiers-with-bitcoin-daniel-buchner">Introduction to Ion – a layer 2 network for Decentralized Identifiers with Bitcoin - Daniel Buchner</a></center>
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<center><iframe src="//www.slideshare.net/slideshow/embed_code/key/e4v6fZdFL5fdu3" 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>
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[Introduction to Ion – a layer 2 network for Decentralized Identifiers with Bitcoin - Daniel Buchner](https://ssimeetup.org/introduction-ion-layer-2-network-decentralized-identifiers-bitcoin-daniel-buchner-webinar-29/) - [Video](https://www.youtube.com/watch?v=agPVWVe0p3Q)
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* [Toward scalable decentralized identifier systems](https://techcommunity.microsoft.com/t5/azure-active-directory-identity/toward-scalable-decentralized-identifier-systems/ba-p/560168) (ION ANN)
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> Today’s post is the next step in realizing our vision for the future of decentralized identities, [which we laid out last year](https://www.microsoft.com/en-us/microsoft-365/blog/2018/02/12/decentralized-digital-identities-and-blockchain-the-future-as-we-see-it/). We believe every person needs a decentralized, digital identity they own and control, backed by self-owned identifiers that enable secure, privacy preserving interactions. This self-owned identity must seamlessly integrate into their lives and put them at the center of everything they do in the digital world.
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@ -46,7 +46,7 @@ last_modified_at: 2020-01-07
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* [Security analysis of a blockchain-based protocol forthe certification of academic credentials](https://arxiv.org/pdf/1910.04622.pdf) by Marco Baldi, Franco Chiaraluce, Migelan Kodra and Luca Spalazzi
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> Abstract—We consider a blockchain-based protocol forthe certification of academic credentials named Blockcerts,which is currently used worldwide for validating digitalcertificates of competence compliant with the Open Badgesstandard. We study the certification steps that are per-formed by the Blockcerts protocol to validate a certificate,and find that they are vulnerable to a certain typeof impersonation attacks. More in detail, authenticationof the issuing institution is performed by retrieving anunauthenticated issuer profile online, and comparing somedata reported there with those included in the issuedcertificate. We show that, by fabricating a fake issuerprofile and generating a suitably altered certificate, anattacker is able to impersonate a legitimate issuer andcan produce certificates that cannot be distinguished fromoriginals by the Blockcerts validation procedure. We alsopropose some possible countermeasures against an attackof this type, which require the use of a classic public keyinfrastructure or a decentralized identity system integratedwith the Blockcerts protocol.
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<center><iframe src="//www.slideshare.net/slideshow/embed_code/key/rVC25i8FzeTPiw" width="510" height="420" 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>
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<center><iframe src="//www.slideshare.net/slideshow/embed_code/key/rVC25i8FzeTPiw" 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>
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[Blockcerts: The Open Standard for Blockchain Credentials](https://www.slideshare.net/SSIMeetup/blockcerts-the-open-standard-for-blockchain-credentials) - [SSI-Meetup – Webinar 39](https://ssimeetup.org/blockcerts-open-standard-blockchain-credentials-daniel-paramo-anthony-ronning-webinar-39/)
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@ -69,4 +69,60 @@ last_modified_at: 2020-01-07
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> * [Open Badges](https://openbadgespec.org/) standard
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> * [Blockcerts](https://blockcerts.org/) standard
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* [cowcerts/schemas/](https://gitlab.com/cowcerts/schemas)
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> Specifications, JSON Schemas and JSON Linked Data definitions for Cowcerts certificates [https://cowcerts.dev](https://cowcerts.dev)
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> Specifications, JSON Schemas and JSON Linked Data definitions for Cowcerts certificates [https://cowcerts.dev](https://cowcerts.dev)
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## GitHub Repositories
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* [blockchain-certificates/blockchain-certificates.github.io](https://github.com/blockchain-certificates/blockchain-certificates.github.io) - Web site.
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* [learningmachine/stage.blockcerts.github.io](https://github.com/learningmachine/stage.blockcerts.github.io)
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* [blockchain-certificates/blockcerts-playground.github.io](https://github.com/blockchain-certificates/blockcerts-playground.github.io) - In-browser tool to experiment with Blockcerts.
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---
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* [learningmachine/Foundatio](https://github.com/learningmachine/Foundatio) Pluggable foundation blocks for building distributed apps.
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* [blockchain-certificates/pyld](https://github.com/blockchain-certificates/pyld) - JSON-LD processor written in Python.
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* [learningmachine/polymer-redux](https://github.com/learningmachine/polymer-redux)
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> An example use-case to showcase the state/view abstraction in Polymer 3, LitElement and Redux context
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* [blockchain-certificates/assets](https://github.com/blockchain-certificates/assets)
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* [blockchain-certificates/archived-cert-store](https://github.com/blockchain-certificates/archived-cert-store)
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> Storage library and service for Blockchain Certificates
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* [blockchain-certificates/PodSpecs](https://github.com/blockchain-certificates/PodSpecs)
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> A listing of CocoaPod .podspec files for all pods created in the Blockchain Certificates project.
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### Issuing
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* [blockchain-certificates/cert-schema](https://github.com/blockchain-certificates/cert-schema)
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> The schema for Blockcerts.
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* [blockchain-certificates/cert-issuer](https://github.com/blockchain-certificates/cert-issuer) - Issues Blockcerts using either the Bitcoin or Ethereum blockchain
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* [blockchain-certificates/cert-tools](https://github.com/blockchain-certificates/cert-tools)
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> Command line tools for designing certificate templates and instantiating a certificate batch
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* [blockchain-certificates/obi-baking](https://github.com/blockchain-certificates/obi-baking)
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> Example of baking a blockcert into an Open Badge.
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* [blockchain-certificates/cert-core](https://github.com/blockchain-certificates/cert-core)
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* [blockchain-certificates/wallet-test-resources](https://github.com/blockchain-certificates/wallet-test-resources)
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> These are resources used to test implementations of the evolving blockcerts certificate standard and issuer conventions.
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### Validation
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* [learningmachine/ajv](https://github.com/learningmachine/ajv)
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> The fastest JSON-Schema Validator. Supports draft-06
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* [blockchain-certificates/openbadges-validator-core](https://github.com/blockchain-certificates/openbadges-validator-core) - Open Badges validation in python.
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### Verification
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* [blockchain-certificates/blockcerts-verifier](https://github.com/blockchain-certificates/blockcerts-verifier) - A Blockcerts verifier and viewer.
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* [blockchain-certificates/cert-verifier](https://github.com/blockchain-certificates/cert-verifier)
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Python library for verifying Blockcerts.
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* [blockchain-certificates/cert-verifier-js](https://github.com/blockchain-certificates/cert-verifier-js) - Javascript library for verifying Blockcerts Certificates
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### Web
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* [blockchain-certificates/cert-web-component](https://github.com/blockchain-certificates/cert-web-component) - A web component for displaying blockchain certificates.
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* [blockchain-certificates/cert-viewer](https://github.com/blockchain-certificates/cert-viewer) - A web app for viewing and validating Blockchain Certificates
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### Mobile
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* [blockchain-certificates/wallet-android](https://github.com/blockchain-certificates/wallet-android) - An Android app for Blockcerts.
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* [blockchain-certificates/BlockcertsFramework-iOS](https://github.com/blockchain-certificates/BlockcertsFramework-iOS) - An iOS wallet for viewing, validating, and sharing certs
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* [blockchain-certificates/wallet-iOS](https://github.com/blockchain-certificates/wallet-iOS) - An iOS wallet for Blockcerts.
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73
_posts/hyperledger/2020-01-07-aries.md
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73
_posts/hyperledger/2020-01-07-aries.md
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---
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date: 2020-01-07
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title: Hyperledger Aries
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excerpt: >
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One of the architectural components of Indy is called an Agent. This is software that acts on behalf of an identity owner to communicate off-ledger with other Agents. As Agent work continued with the development of message encryption standards, extensible message typing, and common protocols, interest grew in applying these concepts and practices to systems based on other ledgers. It became clear that the right future for Agent work was to e-xtract it from Indy project and add support for other ledger technologies to make that integration easier and more powerful. That work is now known as Hyperledger Aries.
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categories: ["Hyperledger Foundation"]
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tags: ["Aries"]
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permalink: /hyperledger/aries/
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last_modified_at: 2020-01-07
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---
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[Announcing Hyperledger Aries, infrastructure supporting interoperable identity solutions!](https://www.hyperledger.org/blog/2019/05/14/announcing-hyperledger-aries-infrastructure-supporting-interoperable-identity-solutions)
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> Identity is commonly cited as one of the most promising use-cases for distributed ledger technology. Initiatives and solutions focused on creating, transmitting and storing verifiable digital credentials will benefit from a shared, reusable, interoperable tool kit. Hyperledger Aries, the newest Hyperledger project (the13th!), is a shared infrastructure of tools that enables the exchange of blockchain-based data, supports peer-to-peer messaging in various scenarios, and facilitates interoperable interaction between different blockchains and other distributed ledger technologies (DLTs).
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[Hyperledger Aries: The Next Major Step Towards Interoperable SSI](https://www.evernym.com/blog/hyperledger-aries/)
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> Aries was born out of the work on identity agents and identity wallets that began in the Hyperledger Indy project. As a company focused entirely on decentralized identity, Evernym was one of the original founders of the Sovrin Network and contributed the first code to the open source project Hyperledger Indy.
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[Hyperledger Aries: Open Source Interoperable Identity Solution – Nathan George – Webinar 30](https://ssimeetup.org/hyperledger-aries-open-source-interoperable-identity-solutions-nathan-george-webinar-30/)
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> Aries will be the industry’s first implementation of interoperable open source wallets for digital credentials that use the DKMS (Decentralized Key Management System) architecture that Evernym pioneered under a contract with the U.S. Department of Homeland Security.
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{% include video id="PXPZQB3VG9w" provider="youtube" %}
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[Sovrin proudly contributes to Hyperledger Aries](https://sovrin.org/sovrin-proudly-contributes-to-hyperledger-aries/)
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> One of the architectural components of Indy is called an Agent. This is software that acts on behalf of an identity owner to communicate off-ledger with other Agents. As Agent work continued with the development of message encryption standards, extensible message typing, and common protocols, interest grew in applying these concepts and practices to systems based on other ledgers. It became clear that the right future for Agent work was to e-xtract it from Indy project and add support for other ledger technologies to make that integration easier and more powerful. That work is now known as Hyperledger Aries.
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>
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> In addition to being able to support more ledger technologies than just Indy, Aries can work with multiple ledgers at the same time. This allows Agents to use each ledger according to the unique power offered by each, instead of requiring anchoring to only one ledger. In the future, Agents will be able to integrate not only with the recently announced Ion DID method, but also Ethereum, Hyperledger Sawtooth, Bitcoin, Hyperledger Fabric, and others.
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[](https://www.slideshare.net/SSIMeetup/hyperledger-aries-open-source-interoperable-identity-solution-nathan-george)
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[Hyperledger Aries to Enable Blockchain-Agnostic, Self-Sovereign Identity](https://medium.com/@xragrawal/hyperledger-aries-to-enable-blockchain-agnostic-self-sovereign-identity-a7d523064112)
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> 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, and secure messaging across different blockchains and other distributed ledger technologies, Hyperledger Aries was set in motion.
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[The VON IIW 28 Demonstration: IIWBook](https://vonx.io/how_to/iiwbook)
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> In late March 2019, the VON team created AgentBook to demonstrate the interoperability of independently created agents. These agents were able to successfully establish DID-based communication channels. Now, with IIWBook, we’ve added a (literal) new layer by extending the core of AgentBook with the ability to exchange verifiable credentials. Even more exciting, through collaboration with Streetcred and Spark New Zealand, we have a mobile agent (or two!).
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## Code \ Documentation
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[hyperledger/indy-hipe/text/0002-agents](https://github.com/hyperledger/indy-hipe/tree/master/text/0002-agents)
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> - A mobile app that Alice uses to manage credentials and to connect to others is an agent for Alice.
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>
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> - A cloud-based service that Alice uses to expose a stable endpoint where other agents can talk to her is an agent for Alice.
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>
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> - A server run by Faber College, allowing it to issue credentials to its students, is an agent for Faber.
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>
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> Having a tight definition of an agent may not matter in all cases. However, it is important when we are trying to understand interoperability goals. We want agents to be able to interact with one another. Does that mean they must interact with every piece of software that is even marginally agent-like? Probably not.
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>
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>
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> Some attributes that are not technically necessary in agents include...
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[Aries Cloud Agent Python Code Documentation](https://aries-cloud-agent-python.readthedocs.io/en/latest/)
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> Hyperledger Aries Cloud Agent Python (ACA-Py) is a foundation for building decentralized identity applications and services running in non-mobile environments.
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>
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> This is the Read The Docs site for the Hyperledger Aries Cloud Agent Python. This site contains only the ACA-Py docstrings documentation extracted from the Python Code. For other documentation, please consult the links in the Readme for the ACA-Py GitHub Repo.
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[@TelegramSam](https://github.com/TelegramSam?tab=repositories)'s Aries repositories
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* [hyperledger/aries](https://github.com/hyperledger/aries)
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> Hyperledger Aries is infrastructure for blockchain-rooted, peer-to-peer interactions
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* [hyperledger/aries-rfcs](https://github.com/hyperledger/aries-rfcs)
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* [aries-toolbox](https://github.com/TelegramSam/aries-toolbox) - tool for interacting with Agents
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* [hyperledger/aries-cloudagent-python](https://github.com/hyperledger/aries-cloudagent-python)
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> Hyperledger Aries Cloud Agent Python (ACA-Py) is a foundation for building decentralized identity applications and services running in non-mobile environments.
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* [hyperledger/aries-cloudagent-python/docs/GettingStartedAriesDev/](https://github.com/hyperledger/aries-cloudagent-python/blob/master/docs/GettingStartedAriesDev/README.md)
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> Hyperledger Aries Cloud Agent Python (ACA-Py) is a foundation for building decentralized identity applications and services running in non-mobile environments.
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* [hyperledger/aries-acapy-plugin-toolbox](https://github.com/hyperledger/aries-acapy-plugin-toolbox)
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> Aries Cloud Agent - Python plugin for the Aries Toolbox
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* [hyperledger/aries-protocol-test-suite](https://github.com/hyperledger/aries-protocol-test-suite)
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> Test Suite for testing protocol compliance of Aries Agents
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* [hyperledger/aries-staticagent-python](https://github.com/hyperledger/aries-staticagent-python)
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* [hyperledger/aries-sdk-python](https://github.com/hyperledger/aries-sdk-python)
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* [hyperledger/aries-agent](https://github.com/hyperledger/aries-agent)
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> Hyperledger Aries is infrastructure for blockchain-rooted, peer-to-peer interactions
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@ -12,7 +12,7 @@ redirect_from:
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categories: ["Private-sector","Blockchain"]
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tags: ["Danube","XDI"]
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toc_sticky: false
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last_modified_at: 2019-07-11
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last_modified_at: 2020-01-07
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---
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Danube Tech must be the longest running firm working towards user-owned and controlled internet identity.
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@ -36,6 +36,15 @@ Danube Tech must be the longest running firm working towards user-owned and cont
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> * change of identity service providers,
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> * personal ID verification in a peer-to-peer marketplace
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[Developer Showcase Series: Markus Sabadello, Danube Tech – Hyper...](https://www.hyperledger.org/blog/2018/08/15/developer-showcase-series-markus-sabadello-danube-tech)
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We have another Developer Showcase blog ready! This series serves to highlight the work and motivations of developers, users and researchers collaborating on Hyperledger’s projects. Next up is Markus Sabadello from Danube Tech....
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[US Homeland Security grants blockchain credentialing contract to D...](https://www.ledgerinsights.com/blockchain-credentials-homeland-security-identity-danube-tech/)
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The Science and Technology Directorate (S&T) of the Department of Homeland Security (DHS) has awarded a $143,478 contract to digital identity firm Danube Tech for credentialing. The Austrian firm has been tasked with developing blockchain security technology for the DHS to se...
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[News Release: DHS S&T Awards 143K for Blockchain Interoperability ...](https://www.dhs.gov/science-and-technology/news/2019/09/26/news-release-dhs-st-awards-143k-blockchain-interoperability)
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DHS S&T has awarded $143,478 to Danube Tech GmbH, based in Vienna, Austria, to develop blockchain security technology.
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## /project-danube Github
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