Zhuang's Diary

言之有物，持之以恒

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History and Evolution

What DID Enables

  • Portability
  • Control
  • Authenticity
  • Security
  • Composability
  • Interoperability
  • Privacy

Recent Regulatory Developments

  • European Commission - welcome final agreement on EU Digital Identity Wallet.
  • King of Bhutan - receives first National Digital Identity.
  • 18 states of USA - live or piloting Mobile Driving Licenses, 17 more in legislative process.
  • British Columbia and Ontario launch Digital ID wallets for citizens.

EU Digital Identity Wallet

https://kyc-world.com/eu-digital-identity-wallet-on-the-road-to-implementation/

https://commission.europa.eu/strategy-and-policy/priorities-2019-2024/europe-fit-digital-age/european-digital-identity_en

Regulatory Frameworks

  1. Electronic ID - eIDAS
  2. Trust Frameworks - British, Canada, Australia, New Zealand, Sweden
  3. Privacy Regulations - EU GDPR, California consumer privacy, 香港个人资料隐私专员公署

Relevant Standards

  1. DIF - DIDComm
  2. Hyperledger - Aries
  3. W3C - DID, VC
  4. ISO - MDL
  5. IETF - SD-JWT VC, SD-JWT
  6. OpenID - OIDC 4 VCI, OIDC 4 VP

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继续前序学习的DID产品，关于polygonID的进一步学习，本文介绍如何使用polygonID。
前序文章：

  • iden3和polygonID原理应用和实战
  • polygonID SDK部分代码分析
    polygonID Issuer-Node 启动以后，有2台 docker container 服务器运行，1) Issuer Node API; 2) Issuer Node UI。这两个服务都有各自的 API 给到前端 - 手机App 或者 Web site调用。
    其中，
  • Issuer Node API是文档中 Issuer Node Core API 的部分。
  • Issuer Node UI API 是文档中 Issuer Node UI 的部分。
    Issuer Node API只是在 Issuer-Node 启动时，调用一次，用来为 Issuer 生成 DID，其后不再被直接调用。前端应用调用API是调用 Issuer Node UI API。关于 Issuer Node UI API 的文档目前是在 Postman 中。其中：
    • Credential - VC创建，取得，删除，作废，取得状态。
    • Auth - 鉴权 QR Code。即 Link 地址对应的 QR Code。
    • Connection - 如文档所示( https://devs.polygonid.com/docs/issuer-node/issuer-node-guide/ )，Connection 展示 ID Holders 和 Credentials 的所属关系。
    • Schema - 生成 VC 所使用的数据字段管理。
    • State - 管理 Identity State，取得，公开至区块链。
    • Link - 通过 link，进入VC。Link创建，取得，删除，失效，创建鉴权，和取得QR Code。

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CDP（前称为碳信息披露项目）:

  • 网站：cdp.net
  • CDP是一个国际非营利组织，提供一个系统化的平台，让公司、城市、州和地区能够测量、披露、管理和分享关键的环境信息。

Verra

  • 网站：https://verra.org/
  • Verra sets the world’s leading standards for climate action and sustainable development.
    →  We build standards for activities as diverse as reducing deforestation, to improving agricultural practices, to addressing plastic waste, and to achieving gender equality.
    →  We manage programs to certify that these activities achieve measurable high-integrity outcomes.
    →  And we work with governments, businesses, and civil society to advance the use of these standards, including through the development of markets.