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Week 3 — Decentralized Authentication

Reference Link to Decentralised authentication Decentralized authentication simply means that there is no central authority needed to verify your identity, i.e., decentralized identifiers. DIDs (Decentralized Identifiers) are a special type of identifier that allows for decentralized, verified digital identification. A DID is any subject identified by the DID's controller (e.g., a person, organization, thing, data model, abstract entity, etc.). DIDs, unlike traditional federated identifiers, are designed to be independent of centralized registries, identity providers, and certificate authorities.

Sign into AWS and configure cognito

Creating user pool (user group)

Sign into AWS Console and open cognito, we will use user pools(but not the difference btn user pools and federated identities-allows third party IP) Choose username and email as sign in option and then Next page Choose the password policy type in our case we would choose the defaults In the Multi factor authenticator, choose no MFA Under user account recovery choose only Email because of spend and allow users to Enable self-service account recovery Next, configure new users experience , allow users at sign up to enable self registration Attribute for verification should be set to Email and verify with Email becuase of cost Required attributes should be set to name only and then Next Page Configure message delivery with Send email with Cognito then choose AWS default email given and then Next Now give user pool a name with cruddur-user-pool and uncheck Use the Cognito Hosted UI and app type as public and then name as cruddur and client secret as Don't generate a client secret an then Next Page Now click on create user pool

Install AWS Amplify(similar to GCP firebase) as a depency to login

locate your frontend and install aws amplify with this npm i aws-amplify --save

After that, import amplify to your app.py in the backend with this ``` import { Amplify } from 'aws-amplify' ````

After the import, paste this

Amplify.configure({
  "AWS_PROJECT_REGION": process.env.REACT_AWS_PROJECT_REGION,
  "aws_cognito_identity_pool_id": process.env.REACT_APP_AWS_COGNITO_IDENTITY_POOL_ID,
  "aws_cognito_region": process.env.REACT_APP_AWS_COGNITO_REGION,
  "aws_user_pools_id": process.env.REACT_APP_AWS_USER_POOLS_ID,
  "aws_user_pools_web_client_id": process.env.REACT_APP_CLIENT_ID,
  "oauth": {},
  Auth: {
    // We are not using an Identity Pool
    // identityPoolId: process.env.REACT_APP_IDENTITY_POOL_ID, // REQUIRED - Amazon Cognito Identity Pool ID
    region: process.env.REACT_AWS_PROJECT_REGION,           // REQUIRED - Amazon Cognito Region
    userPoolId: process.env.REACT_APP_AWS_USER_POOLS_ID,         // OPTIONAL - Amazon Cognito User Pool ID
    userPoolWebClientId: process.env.REACT_APP_AWS_USER_POOLS_WEB_CLIENT_ID,   // OPTIONAL - Amazon Cognito Web Client ID (26-char alphanumeric string)
  }
});