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© 2014 VMware Inc. All rights reserved.
SSO for Mobile and Web Apps
Ashish Jain @itickr CIS 2015
What we will cover in this Session ?
2
1 Why is this important ?
2 What’s the current experience?
3 What’s the desired experience ?
What are my options ?
What’s the challenge ?
Q & A
4
5
6
Why is this important?
What’s the current experience ?
Mobile App • Click on Mobile App
• Enter server and user information. Tenant discovery happens.
• Click login. Get redirected to login screen (AD or else)
• Enter AD credentials (or local/MFA)
• You have access
Web App
• Open Mobile Safari
• Enter web url – e.g. https://www.salesforce.com
• Click login. Get redirected to login screen (AD or else)
• Enter AD credentials (or local/MFA)
• You have access.
10
Mobile App • Start VPN app
• Start SecurID App.
• Enter SecurID pin.
• Enter SecurID passcode on VPN app
• Click on Mobile App
• Enter server and user information. Tenant discovery happens.
• Click login. Get redirected to login screen (AD or else)
• Enter AD credentials (or local/MFA)
• You have access
Web App
• Start VPN app
• Start SecurID App.
• Enter SecurID pin.
• Enter SecurID passcode on VPN app • Open Mobile Safari
• Enter web url – e.g. https://www.salesforce.com
• Click login. Get redirected to login screen (AD or else)
• Enter AD credentials (or local/MFA)
• You have access. 11
What’s the desired experience ?
What’s the challenge?
Mobile SSO flow
1. User access Mobile App
2. App connects to server
3. Redirects to IdP
4. IdP authenticates via AD
5. IdP sends SAML back to App Server
6. App Server sends AT back to App
7. App uses AT to access
1
Mobile App
Web View
2
3
4
5 IdP
AD 6
7
App Server
OAuth AS
SAML
OAuth
Mobile SSO flow
1. User access Mobile App
2. App connects to server
3. Redirects to IdP
4. IdP authenticates via AD
5. IdP sends SAML back to App Server
6. App Server sends AT back to App
7. App uses AT to access
Mobile App
Web View
2
3
4
5 IdP
AD 6
7
Mobile App
OAuth AS
App Server SAML
OAuth
1
Mobile SSO flow
1. User access Mobile App
2. App connects to server
3. Redirects to IdP
4. IdP authenticates via AD
5. IdP sends SAML back to App Server
6. App Server sends AT back to App
7. App uses AT to access
Mobile App
Web View
2
3
4
5 IdP
AD 6
7
Mobile App
OAuth AS
App Server
Challenges • Authentication per mobile app • No validation of access token • No clean up of cached / offline data
OAuth
SAML
1
What are my options ?
Use System browser
Enroll your device
JavaScript trickery
Windows 10
NAPPS
Use Vendor SDK
1
Mobile App
2
3
4
5
IdP
AD
6
7
App Server
OAuth AS
Use System browser
System browser
8
1. User access Mobile App
2. App opens system browser
3. App connects to server
4. Redirects to IdP
5. IdP authenticates via AD
6. IdP sends SAML back to App Server
7. App Server sends AT back to App
8. App uses AT to access
1. User access Mobile App
2. App connects to server
3. Redirects to IdP
4. IdP sends 401 negotiate
5. iOS intercepts
6. On-demand VPN session
7. Sends Cert to KDC to get a ticket
8. IdP validates Kerb ticket
9. IdP sends SAML to App server
10. App server sends OAuth AT to App
Mobile App
Web View
2
3
4
5
IdP
Kerb Adapter
AD
KDC
6 7
8
9
10
App Server
OAuth AS
Enroll your device
1
1. User access Mobile App
2. App connects to server
3. Redirects to IdP
4. IdP caches the request
5. IdP connects with its agent
6. User authenticates
7. Sends token back to IdP
8. IdP sends SAML to App server
9. App server sends OAuth AT to App
1
Mobile App
Web View
2
3
4
5
IdP
6
7
8 App Server
OAuth AS
IdP Agent
9
JavaScript trickery
1. User access Mobile App
2. App RequestTokenAsync to Web Account Manager (WAM)
3. WAM request token from registered Web Account Provider (WAP)
4. WAP redirects to IdP
5. User Authenticates
6. IdP sends the token back to WAP
7. WAP sends the token to WAM
8. WAM returns RequestResult to App
9. App can access the resource 1
Mobile App
2 3
4
5 IdP
6
7 8
App Server
OAuth AS
WAP
9
WAM
Web View
Windows 10
1
Mobile App
2
4
5
IdP
AD
6
7
App Server
OAuth AS
NAPPS
Token Agent
1. User access Mobile App
2. Mobile App requests ACDC token
3. TA gets its own AT/RT
4. IdP authenticates via AD
5. TA uses AT to get ACDC for Mobile App
6. TA passes ACDC to Mobile App
7. Mobile App uses ACDC to get its AT
8. App uses AT to access
OAuth AS
3
8
Summary
Everything will be amazing but no one will be happy
Use System browser
Enroll your device
JavaScript trickery
Windows 10
NAPPS
Use Vendor SDK
Minimal code change. Can be implemented now.
No code change. Best experience. Requires MDM.
Cross platform. Open Standard. Still in spec stage.
No code change. Limited App support.
Only works for enterprise apps.
Platform specific. Not available now.
Q & A Ashish Jain @itickr
