simonmcallister0210 / cognito-srp-helper

A helper for SRP authentication in AWS Cognito
Apache License 2.0
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test fix #28

Closed simonmcallister0210 closed 3 months ago

simonmcallister0210 commented 3 months ago

With password hashing - users can only authenticate with Username (aka. user ID)

const {
  createSrpSession,
  signSrpSession,
  wrapAuthChallenge,
  wrapInitiateAuth,
  createPasswordHash,
} = require("../cognito-srp-helper");
const {
  CognitoIdentityProviderClient,
  InitiateAuthCommand,
  RespondToAuthChallengeCommand,
} = require("@aws-sdk/client-cognito-identity-provider");

(async () => {
  const username = "a2c2e290-6d0f-4a08-a5ca-f0162935f3a6"; // this works
  // const username = "yorej57765@comsb.com"; // this won't work

  const password = "Qwerty1!";
  const poolId = "eu-west-2_eYpv1mFHB";
  const clientId = "18u8119jgbpr464n28s1itk2mq";
  const cognitoIdentityProviderClient = new CognitoIdentityProviderClient({
    region: "eu-west-2",
  });

  const passwordHash = createPasswordHash(username, password, poolId);
  const srpSession = createSrpSession(username, passwordHash, poolId);

  const initiateAuthRes = await cognitoIdentityProviderClient
    .send(
      new InitiateAuthCommand(
        wrapInitiateAuth(srpSession, {
          ClientId: clientId,
          AuthFlow: "USER_SRP_AUTH",
          AuthParameters: {
            CHALLENGE_NAME: "SRP_A",
            USERNAME: username,
          },
        })
      )
    )
    .catch((err) => {
      console.error(err);
      throw err;
    });

  console.log("initiateAuthRes:");
  console.log(initiateAuthRes);

  const signedSrpSession = signSrpSession(srpSession, initiateAuthRes);

  console.log("signedSrpSession:");
  console.log(signedSrpSession);

  const respondToAuthChallengeRes = await cognitoIdentityProviderClient
    .send(
      new RespondToAuthChallengeCommand(
        wrapAuthChallenge(signedSrpSession, {
          ClientId: clientId,
          ChallengeName: "PASSWORD_VERIFIER",
          ChallengeResponses: {
            USERNAME: username,
          },
        })
      )
    )
    .catch((err) => {
      console.error(err);
      throw err;
    });

  console.log("respondToAuthChallengeRes:");
  console.log(respondToAuthChallengeRes);
})();

Without password hashing - users can authenticate with Username (aka. user ID), and email

const {
  createSrpSession,
  signSrpSession,
  wrapAuthChallenge,
  wrapInitiateAuth,
} = require("../cognito-srp-helper");
const {
  CognitoIdentityProviderClient,
  InitiateAuthCommand,
  RespondToAuthChallengeCommand,
} = require("@aws-sdk/client-cognito-identity-provider");

(async () => {
  // const username = "a2c2e290-6d0f-4a08-a5ca-f0162935f3a6"; // this works
  const username = "yorej57765@comsb.com"; // and this works

  const password = "Qwerty1!";
  const poolId = "eu-west-2_eYpv1mFHB";
  const clientId = "18u8119jgbpr464n28s1itk2mq";
  const cognitoIdentityProviderClient = new CognitoIdentityProviderClient({
    region: "eu-west-2",
  });

  const srpSession = createSrpSession(username, password, poolId, false);

  const initiateAuthRes = await cognitoIdentityProviderClient
    .send(
      new InitiateAuthCommand(
        wrapInitiateAuth(srpSession, {
          ClientId: clientId,
          AuthFlow: "USER_SRP_AUTH",
          AuthParameters: {
            CHALLENGE_NAME: "SRP_A",
            USERNAME: username,
          },
        })
      )
    )
    .catch((err) => {
      console.error(err);
      throw err;
    });

  console.log("initiateAuthRes:");
  console.log(initiateAuthRes);

  const signedSrpSession = signSrpSession(srpSession, initiateAuthRes);

  console.log("signedSrpSession:");
  console.log(signedSrpSession);

  const respondToAuthChallengeRes = await cognitoIdentityProviderClient
    .send(
      new RespondToAuthChallengeCommand(
        wrapAuthChallenge(signedSrpSession, {
          ClientId: clientId,
          ChallengeName: "PASSWORD_VERIFIER",
          ChallengeResponses: {
            USERNAME: username,
          },
        })
      )
    )
    .catch((err) => {
      console.error(err);
      throw err;
    });

  console.log("respondToAuthChallengeRes:");
  console.log(respondToAuthChallengeRes);
})();