OAuth2.0 Framework
allow for
-Authorization of access for one site/party to limited/full user data stored inside other site/party
-Authorization without exposing any credentials /passwords

Work flow later …

Why use OAuth ?
- Secure data access no need to exposing your password
- Convenient use one account form many services / sites
- Other sites/services does not need to store user password
- Save time direct access to user data

Hyperledger

-Umbrella project that contain many blockchain solutions and tools.
-Open source project hosted by Linux foundation
- Decentralize data storage + consensus mechanism
-I am using Hyperledger Fabric (base blockchain structure /functionality contributed by IBM)
-Hyperleger Explorer data visualization also provide REST API to communicate with blockchain.

Show it later….

Chaincode

-Main functionality allow to create any kind of application that require both/all parties to agree on data
-It handle any business logic
-Also called smart contract
-Currently supported languages Go Node.js and java (mine in GO )

Project
- Connection of Oauth with blockchain
- It enforces transparency of operation for all parties
- Tokens stored inside blockchain are secure  on blockchain ledger and can by accessed only by parties inside
-Easy access once token is issued it we can query its data from blockchain

Work flow

Use case
-  Work Stand-alone
- Redundant system for already existing solution

Question?

Example