Secure user sign up and sign in is an important starting point for many mobile and web applications. Amazon Cognito enables you to secure your mobile and web applications by providing a comprehensive identity solution for end user management, registration, sign-in, and security. In this product deep dive, we will walk through Cognito’s feature set, which includes serverless flows for user management and sign-in, a fully managed user directory, and control for user permissions. In addition, we will cover key use cases and discuss the associated benefits. Learning Objectives: • What is Cognito’s comprehensive feature set • What are the benefits associated with using Cognito • How to integrate Cognito into your applications • Which use cases are best suited for Cognito Who Should Attend? • Developers

1. © 2016, Amazon Web Services, Inc. or its Affiliates. All rights reserved.
Tim Hunt, Sr. Product Manager, Amazon Cognito
October 26, 2016
Add User Sign-In and Management
to Your Apps with Amazon Cognito

2. Topics
 AWS Mobile Services and Amazon Cognito
 Introduction to Your User Pools
 Summary of Features
 Demo
 Deeper Dive in a Few Areas
 Getting Started
 Q & A

3. The Best Mobile Apps Run on AWS

4. Authenticate users
Analyze User Behavior
Store and share media
Synchronize data
Deliver media
Amazon Cognito
(Sync)
Amazon Cognito
(Identity)
Amazon S3
Amazon CloudFront
Store data
Amazon DynamoDB
Amazon RDS
Track Retention
Amazon Mobile
Analytics
Send push notifications
Amazon SNS
Mobile Push
Server-side logic
Lambda
Device Farm
Test your app
Amazon Mobile
Analytics
Build and Scale Your Apps on AWS

5. AWS Mobile Hub: Fastest Way to Build Apps on AWS

6. Comprehensive Support for Identity Use Cases
6

7. Manage authenticated
and guest users’
access to your AWS
resources
Federated Identities
Synchronize user’s data
across devices and
platforms via the cloud
Data Synchronization
Add sign-up and sign-
in with a fully
managed user
directory
Your User Pool
GuestYour own
auth
Amazon Cognito Identity Amazon Cognito Sync
Amazon Cognito Identity and Sync
k/v data
SAML

8. Sign in with
Facebook
Or
Username
Password
Sign In
Or
Start as a guest
Authenticate via
3rd party Identity
Providers
Amazon Cognito Identity and User Experience
Guest Access
Your User Pools in
Amazon Cognito
Amazon Cognito Identity
provides temporary
credentials to securely
access your resources
DynamoDB
S3
API Gateway

9. Your User Pools
9
Add user sign-up and sign-
in easily to your mobile and
web apps without worrying
about server infrastructure
Serverless Authentication
and User Management
Verify phone numbers and
email addresses and offer
multi-factor authentication
Enhanced Security
Features
Launch a simple, low-cost,
and fully managed service
to create and maintain a
user directory that can scale
to 100s of millions of users
Managed User Directory
1 2 3

10. Comprehensive User Flows
10
Email or phone
number verification
Forgot password
User registration and
authentication
Users verify their email address or phone number prior to activating an account
Users can change their password if they forget it
Users can sign up and sign in using an email, phone number, or username (and
password)
User profile data User can view and update profile data – including custom attributes
SMS-based MFA Users complete Multi-Factor Authentication (MFA) by inputting a security code
received via SMS as part of the sign-in flow
Customize these user flows using Lambda

11. Custom User Flows Using Lambda Hooks
11
Category Lambda Hook Example Scenarios
Custom
Authentication
Flow
Define Auth Challenge Determines the next challenge in a custom auth flow
Create Auth Challenge Creates a challenge in a custom auth flow
Verify Auth Challenge Response Determines if a response is correct in a custom auth flow
Authentication
Events
Pre Authentication Custom validation to accept or deny the sign-in request
Post Authentication Event logging for custom analytics
Sign-Up
Pre Sign-up Custom validation to accept or deny the sign-up request
Post Confirmation Custom welcome messages or event logging for custom analytics
Messages Custom Message Advanced customization and localization of messages

12. Custom Auth flow
12
Amazon Cognito Your
User Pools
Custom Authentication Challenges
(e.g., CAPTCHA or custom 2nd factors)
1
2 5
6
3
4

13. Extensive Admin Capabilities
13
Define custom
attributes
Set per-app
permissions
Set up password
policies
Create and manage
user pools
Define custom attributes for your user profiles
Set read and write permissions for each user attribute on a per-app basis
Enforce password policies like minimum length and requirements for
different character types
Create, configure, and delete user pools across AWS regions
Require submission of
attribute data Select which attributes must be provided by the user to complete sign-up
Search for users Search for users based on a full match or a prefix match of their
attributes through the console or admin API
Manage users Conduct admin actions, such as reset user password, confirm user,
enable MFA, delete user, and global sign-out

14. Remembered Devices
14
Remember the devices
associated with your users
1
Reduce the friction that your
users face with MFA by
suppressing the 2nd factor
challenge from remembered
devices
Build logic to associate devices
with your users to achieve
specific business requirements
such as remote device signout
2

15. Amazon Cognito User Pools and Amazon API
Gateway
15
Custom Authorizer FunctionNative Support
Configure API Gateway to accept
Cognito user pool ID tokens to
authorize users
Control access to your APIs by
inspecting tokens provided by
Cognito user pools

16. Importing Existing Users
 Import users into your Cognito user pool by
uploading .csv files
 Users will create a new password when they
first sign-in
 Each imported user must have an email
address or a phone number

17. Control Attribute Permissions
Choose which user attributes
each app can read and write
Read Write
name
phone
custom:paid

18. Creating Users as an Administrator
 Developers or administrators can create users in a user pool and
send them an optional, customizable invitation email or SMS message
 New users sign in with a temporary password and create a new
password
 User pools can be configured to only allow users created by an
administrator

19. Additional User Pool Features
 Customizable email addresses – Customize the "from" email address of
emails you send to users in a user pool.
 Admin sign-in – Your app can sign in users from back-end servers or
Lambda functions.
 Global sign-out – Allow a user to sign out from all signed-in devices or
browsers.
 Custom expiration period – Set an expiration period for refresh tokens.

20. “Building an AWS serverless platform that manages sensitive
customer data requires an authentication strategy that protects
the information from unauthorized access. Using the Amazon
Cognito user pool feature together with AWS Lambda, we’re
developing a flexible, fully integrated solution that can scale
effortlessly – a powerful tool that will be critical in keeping our
customers’ data secure.”
Feedback from our beta customers
20
“It is critical for us to provide a secure and simple sign-up
and sign-in experience for our tens of millions of end
users. With Amazon Cognito, we can enable that without
having to worry about building and managing any backend
infrastructure.”

21. Demo

22. Understanding User Status
 New users start with
“Registered” status
 Users must be
confirmed before
they can sign-in
 Users must be
disabled before they
can be deleted
Registered
(cannot sign in)
Sign-up
Confirmed
Disabled
Admin
Confirm
Confirm via
email/phone
or
Disable
Delete
(deleted)
Lambda Trigger:
Pre Sign-up Reset Required
User import
Force Change
Password
Admin Create User
Reset password
Enable

23. Verifying Email and Phone
 Your User Pools provide built-in verification of email
addresses and phone numbers
 A six digit code is sent as an email message or SMS
text and is submitted via the VerifyUserAttribute
API
 If both a phone number and email address are
provided at sign-up, a verification code will only be
sent to the phone
 Your app can call GetUser to see if an email address
or phone number is awaiting verification, and then call
GetUserAttributeVerificationCode to initiate
the verification
Your verification
code is 938764

24. Using Aliases in Amazon Cognito User Pools
 Sign-up and sign-in with email is very common
today
 Aliases in Amazon Cognito support use of email,
phone or preferred user name in place of the
user name
 A username value must be provided at sign-up,
but it could be generated by the app and not
exposed to the end user
 Phone numbers and email addresses must be
unique and must be verified before they can be
used to sign-in
My App
Email
Password
Sign In
Sign Up

25. Cognito User and Federated Identities
Cognito User
Identities
(Your User Pool)
User
Sign-in1
Returns Access
and ID Tokens
2
Cognito Federated
Identities
(Identity Pool)
Get AWS scoped
credentials
3
Access
to AWS Services
4
DynamoDBS3 API Gateway

26. Getting Started with Your User Pools
See aws.amazon.com/cognito/dev-resources/ for links to
 Getting Started Guides
 Documentation, SDKs, and Sample Apps
 Videos
 Presentation Slides
 Blog Posts
 Developer Forums

27. Q & A
 Visit aws.amazon.com/cognito/ to learn more
 Find resources at aws.amazon.com/cognito/dev-resources/
 Ask questions at the AWS Developer Forum or Stack Overflow
(‘amazon-cognito’ tag)

28. Appendix

29. AWS Resources
Authentication – Supported Providers:
Authorization / Permission
Cognito Functional Diagram
Social Identity Providers Developer
Provided
Enterprise
Identity
Provider
via SAML
Authenticate users
and generate identity
tokens
Validates identity
tokens and provides
credentials to access
AWS resources
Cognito
User Pool
Cognito Federated Identities (Identity Pool)

30. Pricing
 Pricing is based on Monthly Active Users (MAUs) with volume-based discounting
 A user is counted as a MAU if there is an identity operation related to that user within a calendar
month (e.g., sign-up, sign-in, token refresh, or password change)
 No charge for subsequent sessions or for inactive users
 SMS charges are billed separately (using the SNS Global SMS feature)
Pricing Tier Price per 1K MAUs
First 50,000 MAUs Free
Next 50,000 MAUs $5.50
Next 900,000 MAUs $4.60
Next 9,000,000 MAUs $3.25
>10,000,000 MAUs $2.50

31. Amazon Cognito Sync
User Data
Storage and
Sync
Any Platform
iOS/Android/FireOS
Store app data, preferences, and state
Save app and device data to the cloud and merge
them after login
Cross-device / Cross-OS Sync
Sync user data and preferences across devices
with a few lines of code
Work offline
Data always stored in local SQLite DB first
Works seamlessly with intermittent or no
connectivity
k/v data
Identity pool
No back end
Simple client SDK eliminates need for server
side code
© 2015 Amazon Web Services, Inc. and its affiliates. All rights reserved.

32. Push Sync
 Sync between devices in near real-time
using push instead of polling
 Fewer syncs = cost savings
 Powered by SNS
 Push changes from your backend

33. Cognito Streams
 Enables deeper analysis of data
 Receive a stream of any updates to a dataset for each identity in
your identity pool
 Publishes updates to Kinesis
 From Kinesis write to other destinations such as Redshift or
ElasticSearch
RedShift
ElasticSearch
KinesisCognito

34. Cognito Events
 Can be used to provide data validation (Cheating, Sanitization)
 Can be used to inject data (Bonuses, Content)
 Perform additional logic server side during a synchronize call
 Full control over dataset contents
LambdaCognito