Okta Identity Management with AWS

Okta + AWS Integration

Okta is an identity management platform. It authenticates users and manages access to applications and services, including AWS.

Why Okta for AWS?

Single Sign-On (SSO)

• One login for everything: AWS console, applications, SaaS tools
• Users don’t need multiple passwords
• Reduce password fatigue and security breaches

Multi-Factor Authentication (MFA)

• Require MFA before accessing AWS
• Support multiple MFA methods (phone, authenticator, hardware keys)
• Meet compliance requirements (SOC 2, HIPAA, PCI DSS)

Keyless Access

• No hardcoded AWS access keys for developers
• Temporary credentials automatically rotated
• No credentials stored on developer machine permanently

Lifecycle Management

• When employee joins: provision Okta account
• Grant AWS access automatically
• When employee leaves: revoke all access instantly

Multi-Cloud

• Manage access to AWS, Azure, GCP, SaaS apps
• Centralized identity (single system of truth)
• Reduce shadow IT and unauthorized access

Okta Architecture for AWS

User Access Flow

Developer
  ↓ (logs into Okta)
Okta (authenticates + MFA)
  ↓ (creates SAML assertion)
AWS (exchanges SAML for temp credentials)
  ↓
Developer has AWS API access

Key Actors

• Okta: authentication provider
• AWS IAM: trusts Okta SAML assertions
• Developer: receives temporary credentials

Setup: Okta SAML Integration with AWS

1. Configure Okta app for AWS

• In Okta dashboard: create AWS SAML app
• Set up SAML assertions (user, email, groups)

2. Configure AWS IAM

• Create IAM role with SAML trust policy
• Role trusts assertions from Okta
• Role has permissions (EC2, S3, etc.)

3. Map Okta groups to AWS roles

• Okta group “engineers” → AWS role “developer”
• Okta group “devops” → AWS role “devops-admin”
• Okta group “finance” → AWS role “read-only”

4. Developer accesses AWS

# User authenticates via Okta CLI tool
okta aws --profile dev

# Okta provides temp credentials
# CLI stores in ~/.aws/credentials
aws ec2 describe-instances --profile dev

Okta vs AWS Identity Center

Okta MFA Methods

Phone/SMS

• Okta sends code to phone
• User enters code
• Simple, no additional hardware

Authenticator App

• Google Authenticator, Microsoft Authenticator
• TOTP (time-based one-time password)
• Requires app on phone

Hardware Keys

• YubiKey, Titan
• Most secure, no SIM swap vulnerability
• Higher cost

Biometric

• Fingerprint, face recognition
• Built into modern phones
• Seamless user experience

Okta for Applications on AWS

Beyond AWS console, Okta can authenticate apps running on AWS:

1. Web Application

• App integrates Okta SDK
• User clicks “Login with Okta”
• Okta authenticates and returns user info
• App grants access

2. Mobile App

• Uses OAuth/OIDC
• Okta handles authentication
• App receives bearer token

Example: Node.js app

const OktaJwtVerifier = require('@okta/jwt-verifier');

const verifier = new OktaJwtVerifier({
  issuer: 'https://org.okta.com',
});

app.get('/api/users', async (req, res) => {
  const token = req.headers.authorization.slice(7); // Bearer token
  const jwt = await verifier.verifyAccessToken(token);
  res.json({ user: jwt.claims.sub });
});

Security Considerations

Token Rotation

• AWS temporary credentials expire (1-12 hours)
• User must re-authenticate for new credentials
• Compromised credentials have limited lifespan

Audit Logging

• Okta logs all authentication attempts
• Who accessed what, when
• Compliance: HIPAA, SOC 2, PCI DSS

Conditional Access

• Require MFA if accessing from unknown location
• Block access from suspicious countries
• Require re-authentication after idle time

Pricing & Cost Example

100 users

• Okta Pro: $4/user/month = $400/month
• MFA add-on: ~$100/month (optional)
• Total: ~$500/month

1,000 users

• Okta Pro: $4/user/month = $4,000/month
• Negotiate enterprise discount: maybe $3/user = $3,000/month
• Total: ~$3,000/month

When to Use Okta vs Identity Center

Use AWS Identity Center if:

• Only AWS, no other clouds
• < 500 users
• Simple use case (SSO + basic MFA)
• Want to minimize costs

Use Okta if:

• Multi-cloud (AWS + Azure + GCP)

• 500 users

• Advanced lifecycle management needed
• Want MFA for everything

Related Services

• Cloud Security
• AWS Architecture Review