Today’s post is the next step in realizing our vision for the future of decentralized identities, which we laid out last year. 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.
We’ve been hard at work contributing to numerous emerging standards and developing open source components in furtherance of that vision, Identity Hubs being our most recent contribution. Identity Hubs provide secure, encrypted storage of personal data and they rely on decentralized systems (blockchains and distributed ledgers) to anchor their identifiers. Unfortunately, those systems have not had the performance characteristics required to power a truly worldwide decentralized identity system.
That is until now. Today, we’re announcing an early preview of a Sidetree-based DID network, called ION (Identity Overlay Network) which runs atop the Bitcoin blockchain based on an emerging set of open standards that we’ve developed working with many of our partners in the Decentralized Identity Foundation. This approach greatly improves the throughput of DID systems to achieve tens-of-thousands of operations per second.
I’ve asked Daniel Buchner, a program manager on my team who works on standards and open source solutions, to present our latest contributions in this area. His post introduces another major component we’ve been developing—in collaboration with other members from Decentralized Identity Foundation ( Decentralized Identity Foundation (DIF)—to create a scalable foundational layer for decentralized identity systems.
As always, we’d love to hear your thoughts and feedback.
Best regards,
Alex Simons (Twitter: @Alex_A_Simons) Vice President of Program Management Microsoft Identity Division
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Hi, it’s Daniel, from the Microsoft Identity team focused on developing standards for Decentralized Identity. Today, the most common digital identifiers we use are email addresses and usernames, provided to us by apps, services, and organizations. This puts identity providers in a place of control, between us and every digital interaction in our lives. Our goal is to create a decentralized identity ecosystem where millions of organizations, billions of people, and countless devices can securely interact over an interoperable system built on standards and open source components.
Recent advancements in decentralized consensus systems (e.g. blockchains, distributed ledgers) provide capabilities that can be leveraged to create Decentralized Identifiers (DIDs) that are owned by the user. While blockchains unlock the ability to create highly secure, censorship resistant identity systems, their transactional volumes are severely limited when compared to traditional systems. The most robust, decentralized, public blockchains operate at just tens of transactions per second, nowhere near the volume a world full of DIDs would demand.
This post details our joint effort with various members of the identity and blockchain communities to address the performance and scale needs of DID systems, while maintaining the properties of decentralization and self-ownership that differentiate them from existing identity technologies. There is no simple solution to this problem—one can’t just change a variable to increase the transactional volume of these system without degrading the very attributes of decentralization that make them valuable. To tackle this challenge, we’ve been collaborating with members of the DIF, notably ConsenSys and Transmute, to develop a blockchain-agnostic protocol for creating scalable DID networks, called Sidetree.
Today, we’re announcing an early preview of a Sidetree-based DID network, called ION(Identity Overlay Network), which runs atop the Bitcoin blockchain. ION is a public, permission-less, open network anyone can use to create DIDs and manage their Public Key Infrastructure (PKI) state. ION is designed to deliver the scale required for a world of DIDs, while inheriting and preserving the attributes of decentralization present in the Bitcoin blockchain. The code for the ION reference node is still under rapid development, and there are many aspects of the protocol left to implement before it is ready for testing on Bitcoin mainnet. On low-powered consumer reference hardware we’ve observed tens-of-thousands of DID operations per second. As with our previous announcements, we’re sharing our work as early as possible—rough edges and all—to start a conversation with the community and encourage collaboration.
The generic components specified by the Sidetreeprotocol comprise the majority of ION’s code. ION, like all Sidetree-based DID networks, is a combination of the core Sidetree logic module, achain-specific read/write adapter, and a content addressable storage protocol(e.g. IPFS) that replicates data between nodes. Together, these components enable the creation of Layer 2 DID networks that run atop existingblockchains (Layer 1)at thousands, or even tens of thousands, of PKI operations per second.The only form of consensus the Sidetree protocol requires is adecentralized chronological ordering of operations, which is exactly what the underlying blockchain provides. Unlike monetary units and asset tokens, IDs are not intended to be exchanged and traded. This difference in constraints is reflected in how the protocol is designed and enables it to achieve far greater scale without reliance on additional Layer 2 consensus schemes, trusted validator lists, or special protocol tokens. All nodes of the network are able to arrive at the same Decentralized Public Key Infrastructure (DPKI) state for an identifier based solely on applying deterministic protocol rules to chronologically ordered batches of operations anchored on the blockchain, which ION nodes replicate and store via IPFS.
In the coming months, we’ll work with open source contributors and members of identity community to prepare for a public launch of the ION network on Bitcoin mainnet. During this time, the project’s code will evolverapidlyand is best suited for use by experienced developers. If you’re adeveloper interested in contributing, you can use the ION node installation guide to get a node up a running on your machine. Please file any bugs you notice as “Issues” in the ION repo, and submit “Pull Requests” to help accelerate development. If you’re not an experienced developer but would still like to interact with an ION node, we deployed an early preview build of ION on Azure. For more info,seeDID Registration.
We’re also engaging with ecosystem partners tooperateION nodes. Collaborating with partners to validate the protocol and build out the network is an essential step in preparation for mainnet release.
Here are some of theorganizations who areleaningin early to run nodes:
Equinix—Global interconnection and data center company. Equinix connects the world's leading businesses to their customers, employees and partners inside the most interconnected data centers.
Casa—Developer of hardware, apps, and services for security conscious Bitcoin users.
Learning Machine—Tools and services for issuing official records in a blockchain-anchored digital format,for schools, companies, and governments.
Civic—Tools to control and protect identities, built using an open source secure identity verification ecosystem
Cloudflare—Leading Internet performance and security company that runs one of the world's largest networks
While a great deal of development, community building, andtesting remains to be done, we’reexcited to workwith everyone to drive this important initiative forward!
1. You would just use ION, and we are just about to publish a Universal Resolver driver so you can do so via the DIF Universal Resolver implementation, if you desire.
2. DIF/W3C are now jointly working on a personal datastore implementation via the DIF/W3C Secure Data Storage Working Group. Hubs (which will be a byproduct of that group) are different than Indy Agents, as they do not have privileged access to data. Here's a post that Daniel Hardman from Sovrin/Evernym wrote that details the differences between them and how they work together: Rhythm and Melody: How Hubs and Agents Rock Together | by Daniel Buchner | Decentralized Identity Foundation | Medium
mijoco there are several equivalence properties supported in the near-ratified DID Core specification (Decentralized Identifiers (DIDs) v1.0 (w3.org)), but to do so we need to add support in ION for adding those properties and Blockstack must allow you to bi-directionally point back to the ION ID you want to bind, in compliance with the DID Core spec <-- while we can add 'alsoKnownAs' support to ION rather easily, I don't know if Blockstack supports the latest DID Core spec, or if they do, whether they will enable you to add the reverse pointer you'd need to create.
This looks really interesting. I've been working on Blockstack project for past 18 months and am immediately wondering whether we can bind blockstack human readable names to the sidetree generated unique identifiers?
Hi Alex, I am looking forward to learn more about this project and how it evolves. Is there anybody in your Munich team in Germany who is part of this group? I consider myself as an advocate for Digital Identity and I am discussing this matter with politicians on local and federal level. Furthermore I am coordinating the working group digital identity within the Blockchain Bavaria association (https://www.blockchain-bayern.de). Maybe it is of mutual benefit to touch base. Cheers Erwin
Jordan Mills the Layer 2 system, ION, that is the topic of this post is a decentralized, immutable system for generating IDs and maintaining their PKI state. This has nothing to do with the content a person chooses to generated in association with their IDs, and the IDs cannot be 'deplatformed' by us or anyone else that runs an ION node (this is a core requirement). If a person uses an ID of theirs with some app or service and that app or service no longer wishes to do business with the person/ID, that's their choice, and has nothing to do with ION.
What do you plan to do when one of your partners decides to deplatform someone they don't like? Are you sure it was a good idea to partner with cloudflare?
-In order to implement a digital identity solution based on ION, would I need to create and register my own driver/DID method in order for the DID resolver to find it?Or can I use the ION did method(did:ion:)?In this last case, how would I register the method-specific identifier?
-It is not clear to me the differences of responsibilities between DIF Identity Hubs and Sovrin/Indy Agents. Are they complementary and both required in order to deploy a completer identity solution?Or can the Identity Hub perform all agents' functionalities?
I appreciate your team's effort and Microsoft's intent with ION, as this is clearly a gap in the digital identity service value chain. I have some queries related to preserving privacy and control of users digital identity transactions over the blockchain network. Would appreciate you could take a look.
Performance: ION is stated to overcome current throughput limitations over the blockchain network allows for tens of thousands of operations per second. Is it sufficient to meet the transaction volume of DIDs (Decentralized Identities) from billions of people and devices across the world?
Control: It's not clear to me how users would be in complete control of their information on the bitcoin blockchain. For instance, my understanding is that the open network Public Key Infrastructure (PKI) secures the transaction by ensuring only authorized application/service providers with a public key will have access to user's personal identity, however,
How does ION ensure that the shared personal identity information is being used by app/service providers for authorized purposes only?
What happens after the purpose of the transaction is fulfilled? It's unclear how access to the identity data will be revoked once the purpose of that interaction is fulfilled.
If for whatever reason, the authorized application/service provider still has access to user's personal information outside of the network then the user is no longer in control of that data anymore and it could become a privacy nightmare.
I am assuming that once the transaction is authorized, user's personal identity gets shared with the designated service provider, who would be in possession of that information until explicitly asked to revoke following privacy regulations such as GDPR, CCPA.
Security and reliability: Is there an effort to overcome the vulnerability of the bitcoin blockchain network to well-coordinated attacks that tend to take control over majority CPU power?
Thanks again for all the effort that is going into this initiative.
Sounds really interesting. May I know the business model? Will Microsoft run a network of ION nodes and offer this as service to public/enterprise, or will Microsoft sell this as solution for other organization who wishes to do similar thing?
Also would like to hear your comments on other initiatives in the market, such as Sovrin (Hyperledger Indy) compared to Microsoft's sidetree-based ION solution.
What is the roadmap for streamlining private key management on the client side for the End users? Will login be streamlined for an end user like in Blockstack.... i.e, will it eventually be easy enough for my Mom to use?
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Announcing a preview of Identity Overlay Network (ION) -- a Sidetree-based DID network that runs atop the Bitcoin blockchain.
","body":"
Howdy folks,
\n
\n
Today’s post is the next step in realizing our vision for the future of decentralized identities, which we laid out last year. 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.
\n
\n
We’ve been hard at work contributing to numerous emerging standards and developing open source components in furtherance of that vision, Identity Hubs being our most recent contribution. Identity Hubs provide secure, encrypted storage of personal data and they rely on decentralized systems (blockchains and distributed ledgers) to anchor their identifiers. Unfortunately, those systems have not had the performance characteristics required to power a truly worldwide decentralized identity system.
\n
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That is until now. Today, we’re announcing an early preview of a Sidetree-based DID network, called ION (Identity Overlay Network) which runs atop the Bitcoin blockchain based on an emerging set of open standards that we’ve developed working with many of our partners in the Decentralized Identity Foundation. This approach greatly improves the throughput of DID systems to achieve tens-of-thousands of operations per second.
\n
\n
I’ve asked Daniel Buchner, a program manager on my team who works on standards and open source solutions, to present our latest contributions in this area. His post introduces another major component we’ve been developing—in collaboration with other members from Decentralized Identity Foundation ( Decentralized Identity Foundation (DIF)—to create a scalable foundational layer for decentralized identity systems.
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As always, we’d love to hear your thoughts and feedback.
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Best regards,
\n
\n
Alex Simons (Twitter: @Alex_A_Simons) Vice President of Program Management Microsoft Identity Division
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\n
--------------------------------
\n
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Hi, it’s Daniel, from the Microsoft Identity team focused on developing standards for Decentralized Identity. Today, the most common digital identifiers we use are email addresses and usernames, provided to us by apps, services, and organizations. This puts identity providers in a place of control, between us and every digital interaction in our lives. Our goal is to create a decentralized identity ecosystem where millions of organizations, billions of people, and countless devices can securely interact over an interoperable system built on standards and open source components.
\n
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Recent advancements in decentralized consensus systems (e.g. blockchains, distributed ledgers) provide capabilities that can be leveraged to create Decentralized Identifiers (DIDs) that are owned by the user. While blockchains unlock the ability to create highly secure, censorship resistant identity systems, their transactional volumes are severely limited when compared to traditional systems. The most robust, decentralized, public blockchains operate at just tens of transactions per second, nowhere near the volume a world full of DIDs would demand.
\n
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This post details our joint effort with various members of the identity and blockchain communities to address the performance and scale needs of DID systems, while maintaining the properties of decentralization and self-ownership that differentiate them from existing identity technologies. There is no simple solution to this problem—one can’t just change a variable to increase the transactional volume of these system without degrading the very attributes of decentralization that make them valuable. To tackle this challenge, we’ve been collaborating with members of the DIF, notably ConsenSys and Transmute, to develop a blockchain-agnostic protocol for creating scalable DID networks, called Sidetree.
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Today, we’re announcing an early preview of a Sidetree-based DID network, called ION(Identity Overlay Network), which runs atop the Bitcoin blockchain. ION is a public, permission-less, open network anyone can use to create DIDs and manage their Public Key Infrastructure (PKI) state. ION is designed to deliver the scale required for a world of DIDs, while inheriting and preserving the attributes of decentralization present in the Bitcoin blockchain. The code for the ION reference node is still under rapid development, and there are many aspects of the protocol left to implement before it is ready for testing on Bitcoin mainnet. On low-powered consumer reference hardware we’ve observed tens-of-thousands of DID operations per second. As with our previous announcements, we’re sharing our work as early as possible—rough edges and all—to start a conversation with the community and encourage collaboration.
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The generic components specified by the Sidetreeprotocol comprise the majority of ION’s code. ION, like all Sidetree-based DID networks, is a combination of the core Sidetree logic module, achain-specific read/write adapter, and a content addressable storage protocol(e.g. IPFS) that replicates data between nodes. Together, these components enable the creation of Layer 2 DID networks that run atop existingblockchains (Layer 1)at thousands, or even tens of thousands, of PKI operations per second.The only form of consensus the Sidetree protocol requires is adecentralized chronological ordering of operations, which is exactly what the underlying blockchain provides. Unlike monetary units and asset tokens, IDs are not intended to be exchanged and traded. This difference in constraints is reflected in how the protocol is designed and enables it to achieve far greater scale without reliance on additional Layer 2 consensus schemes, trusted validator lists, or special protocol tokens. All nodes of the network are able to arrive at the same Decentralized Public Key Infrastructure (DPKI) state for an identifier based solely on applying deterministic protocol rules to chronologically ordered batches of operations anchored on the blockchain, which ION nodes replicate and store via IPFS.
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In the coming months, we’ll work with open source contributors and members of identity community to prepare for a public launch of the ION network on Bitcoin mainnet. During this time, the project’s code will evolverapidlyand is best suited for use by experienced developers. If you’re adeveloper interested in contributing, you can use the ION node installation guide to get a node up a running on your machine. Please file any bugs you notice as “Issues” in the ION repo, and submit “Pull Requests” to help accelerate development. If you’re not an experienced developer but would still like to interact with an ION node, we deployed an early preview build of ION on Azure. For more info,seeDID Registration.
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We’re also engaging with ecosystem partners tooperateION nodes. Collaborating with partners to validate the protocol and build out the network is an essential step in preparation for mainnet release.
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Here are some of theorganizations who areleaningin early to run nodes:
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Equinix—Global interconnection and data center company. Equinix connects the world's leading businesses to their customers, employees and partners inside the most interconnected data centers.
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Casa—Developer of hardware, apps, and services for security conscious Bitcoin users.
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Learning Machine—Tools and services for issuing official records in a blockchain-anchored digital format,for schools, companies, and governments.
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Civic—Tools to control and protect identities, built using an open source secure identity verification ecosystem
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Cloudflare—Leading Internet performance and security company that runs one of the world's largest networks
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While a great deal of development, community building, andtesting remains to be done, we’reexcited to workwith everyone to drive this important initiative forward!
Today’s post is the next step in realizing our vision for the future of decentralized identities, which we laid out last year. 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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We’ve been hard at work contributing to numerous emerging standards and developing open source components in furtherance of that vision, Identity Hubs being our most recent contribution. Identity Hubs provide secure, encrypted storage of personal data and they rely on decentralized systems (blockchains and distributed ledgers) to anchor their identifiers. Unfortunately, those systems have not had the performance characteristics required to power a truly worldwide decentralized identity system.
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That is until now. Today, we’re announcing an early preview of a Sidetree-based DID network, called ION (Identity Overlay Network) which runs atop the Bitcoin blockchain based on an emerging set of open standards that we’ve developed working with many of our partners in the Decentralized Identity Foundation. This approach greatly improves the throughput of DID systems to achieve tens-of-thousands of operations per second.
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I’ve asked Daniel Buchner, a program manager on my team who works on standards and open source solutions, to present our latest contributions in this area. His post introduces another major component we’ve been developing—in collaboration with other members from Decentralized Identity Foundation ( Decentralized Identity Foundation (DIF)—to create a scalable foundational layer for decentralized identity systems.
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As always, we’d love to hear your thoughts and feedback.
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Best regards,
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Alex Simons (Twitter: @Alex_A_Simons) Vice President of Program Management Microsoft Identity Division
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Hi, it’s Daniel, from the Microsoft Identity team focused on developing standards for Decentralized Identity. Today, the most common digital identifiers we use are email addresses and usernames, provided to us by apps, services, and organizations. This puts identity providers in a place of control, between us and every digital interaction in our lives. Our goal is to create a decentralized identity ecosystem where millions of organizations, billions of people, and countless devices can securely interact over an interoperable system built on standards and open source components.
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Recent advancements in decentralized consensus systems (e.g. blockchains, distributed ledgers) provide capabilities that can be leveraged to create Decentralized Identifiers (DIDs) that are owned by the user. While blockchains unlock the ability to create highly secure, censorship resistant identity systems, their transactional volumes are severely limited when compared to traditional systems. The most robust, decentralized, public blockchains operate at just tens of transactions per second, nowhere near the volume a world full of DIDs would demand.
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This post details our joint effort with various members of the identity and blockchain communities to address the performance and scale needs of DID systems, while maintaining the properties of decentralization and self-ownership that differentiate them from existing identity technologies. There is no simple solution to this problem—one can’t just change a variable to increase the transactional volume of these system without degrading the very attributes of decentralization that make them valuable. To tackle this challenge, we’ve been collaborating with members of the DIF, notably ConsenSys and Transmute, to develop a blockchain-agnostic protocol for creating scalable DID networks, called Sidetree.
\n
\n
Today, we’re announcing an early preview of a Sidetree-based DID network, called ION(Identity Overlay Network), which runs atop the Bitcoin blockchain. ION is a public, permission-less, open network anyone can use to create DIDs and manage their Public Key Infrastructure (PKI) state. ION is designed to deliver the scale required for a world of DIDs, while inheriting and preserving the attributes of decentralization present in the Bitcoin blockchain. The code for the ION reference node is still under rapid development, and there are many aspects of the protocol left to implement before it is ready for testing on Bitcoin mainnet. On low-powered consumer reference hardware we’ve observed tens-of-thousands of DID operations per second. As with our previous announcements, we’re sharing our work as early as possible—rough edges and all—to start a conversation with the community and encourage collaboration.
\n
\n
\n
The generic components specified by the Sidetreeprotocol comprise the majority of ION’s code. ION, like all Sidetree-based DID networks, is a combination of the core Sidetree logic module, achain-specific read/write adapter, and a content addressable storage protocol(e.g. IPFS) that replicates data between nodes. Together, these components enable the creation of Layer 2 DID networks that run atop existingblockchains (Layer 1)at thousands, or even tens of thousands, of PKI operations per second.The only form of consensus the Sidetree protocol requires is adecentralized chronological ordering of operations, which is exactly what the underlying blockchain provides. Unlike monetary units and asset tokens, IDs are not intended to be exchanged and traded. This difference in constraints is reflected in how the protocol is designed and enables it to achieve far greater scale without reliance on additional Layer 2 consensus schemes, trusted validator lists, or special protocol tokens. All nodes of the network are able to arrive at the same Decentralized Public Key Infrastructure (DPKI) state for an identifier based solely on applying deterministic protocol rules to chronologically ordered batches of operations anchored on the blockchain, which ION nodes replicate and store via IPFS.
\n
\n
In the coming months, we’ll work with open source contributors and members of identity community to prepare for a public launch of the ION network on Bitcoin mainnet. During this time, the project’s code will evolverapidlyand is best suited for use by experienced developers. If you’re adeveloper interested in contributing, you can use the ION node installation guide to get a node up a running on your machine. Please file any bugs you notice as “Issues” in the ION repo, and submit “Pull Requests” to help accelerate development. If you’re not an experienced developer but would still like to interact with an ION node, we deployed an early preview build of ION on Azure. For more info,seeDID Registration.
\n
\n
We’re also engaging with ecosystem partners tooperateION nodes. Collaborating with partners to validate the protocol and build out the network is an essential step in preparation for mainnet release.
\n
\n
Here are some of theorganizations who areleaningin early to run nodes:
\n
\n
\n
Equinix—Global interconnection and data center company. Equinix connects the world's leading businesses to their customers, employees and partners inside the most interconnected data centers.
\n
Casa—Developer of hardware, apps, and services for security conscious Bitcoin users.
\n
Learning Machine—Tools and services for issuing official records in a blockchain-anchored digital format,for schools, companies, and governments.
\n
Civic—Tools to control and protect identities, built using an open source secure identity verification ecosystem
\n
Cloudflare—Leading Internet performance and security company that runs one of the world's largest networks
\n
\n
While a great deal of development, community building, andtesting remains to be done, we’reexcited to workwith everyone to drive this important initiative forward!
Announcing a preview of Identity Overlay Network (ION) -- a Sidetree-based DID network that runs atop the Bitcoin blockchain.
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Toward scalable decentralized identifier systems","moderationData":{"__ref":"ModerationData:moderation_data:1897401"},"body":"
1. You would just use ION, and we are just about to publish a Universal Resolver driver so you can do so via the DIF Universal Resolver implementation, if you desire.
\n
2. DIF/W3C are now jointly working on a personal datastore implementation via the DIF/W3C Secure Data Storage Working Group. Hubs (which will be a byproduct of that group) are different than Indy Agents, as they do not have privileged access to data. Here's a post that Daniel Hardman from Sovrin/Evernym wrote that details the differences between them and how they work together: Rhythm and Melody: How Hubs and Agents Rock Together | by Daniel Buchner | Decentralized Identity Foundation | Medium
mijoco there are several equivalence properties supported in the near-ratified DID Core specification (Decentralized Identifiers (DIDs) v1.0 (w3.org)), but to do so we need to add support in ION for adding those properties and Blockstack must allow you to bi-directionally point back to the ION ID you want to bind, in compliance with the DID Core spec <-- while we can add 'alsoKnownAs' support to ION rather easily, I don't know if Blockstack supports the latest DID Core spec, or if they do, whether they will enable you to add the reverse pointer you'd need to create.
This looks really interesting. I've been working on Blockstack project for past 18 months and am immediately wondering whether we can bind blockstack human readable names to the sidetree generated unique identifiers?
Hi Alex, I am looking forward to learn more about this project and how it evolves. Is there anybody in your Munich team in Germany who is part of this group? I consider myself as an advocate for Digital Identity and I am discussing this matter with politicians on local and federal level. Furthermore I am coordinating the working group digital identity within the Blockchain Bavaria association (https://www.blockchain-bayern.de). Maybe it is of mutual benefit to touch base. Cheers Erwin
Jordan Mills the Layer 2 system, ION, that is the topic of this post is a decentralized, immutable system for generating IDs and maintaining their PKI state. This has nothing to do with the content a person chooses to generated in association with their IDs, and the IDs cannot be 'deplatformed' by us or anyone else that runs an ION node (this is a core requirement). If a person uses an ID of theirs with some app or service and that app or service no longer wishes to do business with the person/ID, that's their choice, and has nothing to do with ION.
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Hi All , i have few questions:
-In order to implement a digital identity solution based on ION, would I need to create and register my own driver/DID method in order for the DID resolver to find it?Or can I use the ION did method(did:ion:)?In this last case, how would I register the method-specific identifier?
-It is not clear to me the differences of responsibilities between DIF Identity Hubs and Sovrin/Indy Agents. Are they complementary and both required in order to deploy a completer identity solution?Or can the Identity Hub perform all agents' functionalities?
I appreciate your team's effort and Microsoft's intent with ION, as this is clearly a gap in the digital identity service value chain. I have some queries related to preserving privacy and control of users digital identity transactions over the blockchain network. Would appreciate you could take a look.
Performance: ION is stated to overcome current throughput limitations over the blockchain network allows for tens of thousands of operations per second. Is it sufficient to meet the transaction volume of DIDs (Decentralized Identities) from billions of people and devices across the world?
Control: It's not clear to me how users would be in complete control of their information on the bitcoin blockchain. For instance, my understanding is that the open network Public Key Infrastructure (PKI) secures the transaction by ensuring only authorized application/service providers with a public key will have access to user's personal identity, however,
How does ION ensure that the shared personal identity information is being used by app/service providers for authorized purposes only?
What happens after the purpose of the transaction is fulfilled? It's unclear how access to the identity data will be revoked once the purpose of that interaction is fulfilled.
If for whatever reason, the authorized application/service provider still has access to user's personal information outside of the network then the user is no longer in control of that data anymore and it could become a privacy nightmare.
I am assuming that once the transaction is authorized, user's personal identity gets shared with the designated service provider, who would be in possession of that information until explicitly asked to revoke following privacy regulations such as GDPR, CCPA.
Security and reliability: Is there an effort to overcome the vulnerability of the bitcoin blockchain network to well-coordinated attacks that tend to take control over majority CPU power?
Thanks again for all the effort that is going into this initiative.
Sounds really interesting. May I know the business model? Will Microsoft run a network of ION nodes and offer this as service to public/enterprise, or will Microsoft sell this as solution for other organization who wishes to do similar thing?
Also would like to hear your comments on other initiatives in the market, such as Sovrin (Hyperledger Indy) compared to Microsoft's sidetree-based ION solution.
What is the roadmap for streamlining private key management on the client side for the End users? Will login be streamlined for an end user like in Blockstack.... i.e, will it eventually be easy enough for my Mom to use?
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Microsoft
