uport

개인 공부 용도로 리서치 한 것들 정리한 것으로 부정확할 수 있다.

uPort is a self-sovereign digital identity platform—anchored on the Ethereum blockchain.

UPort 내용 정리

• https://github.com/uport-project/specs
• https://developer.uport.me/
• open source decentralized identity framework (Ethereum DLT 활용)
• 이더리움 컨트랙트를 통해 디자인되었다.
• controller, proxy로 구성

controller : stores a reference to the public key
proxy : contains a reference to the controller contract

• 스마트 컨트랙트에 데이터 자체를 저장하는 건 비용이 많이 들기 때문에, 해시값만 저장해둔 후 실제 데이터는 IPFS에 저장한다.
• 대부분 QR code로 핸들링한다.

UPort Libraries

uport-transports

• Set up communication channels between your app and a uPort client to handle requests and responses.
• uport-credentials 라이브러리와 함께 사용 가능
• 가능한 작업
  • Send messages to users using a QR code
  • Send requests and receive responses through URLs
  • Send encrypted push notifications
  • Create Transports specific to your use case and environment

uport-credentials

• Library for integrating uPort into node server side applications
• 가능한 작업
  • Create and verify authentication requests
  • Request verified claims
  • Verify claims for your users
  • Ask users to sign Ethereum transactions
  • Create Ethereum smartcontract function call requests without web 3.0

uport-connect

• The uport-connect library is a client-side library that allows you to interact with a user’s uPort identity—through the mobile app.
• 가능한 작업
  • Handle user logins
  • Request Ethereum transaction signing
  • Keep your users logged into an app
  • Use QR code & push notification flow for desktop browsers
  • Use frictionless app linking for mobile browsers

ethr-did

• W3C DID 표준과 ERC1056을 따르는 라이브러리
• It encapsulates all the functionality of ethr-did-resolver and ethr-did-registry.
• 가능한 작업
  • Create and manage keys for DID identities
  • Sign JSON Web Tokens
  • Authorize third parties to sign on a DID’s behalf
  • Enable discovery of service endpoints (e.g. decentralized identity management services)

ethr-did-registry

• This library contains the Ethereum contract code that allows the owner of an ethr-did identity to update the attributes that appear in its did-document.
• Mainnet (id: 1) 0xdca7ef03e98e0dc2b855be647c39abe984fcf21b
• Ropsten (id: 3) 0xdca7ef03e98e0dc2b855be647c39abe984fcf21b

참고
https://github.com/uport-project
https://developer.uport.me/