OAuth Token State Management for Cloud Resource Security
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Solution Overview
Problem
OAuth-based applications continue to consume protected cloud resources even after user credentials have changed or when the device is in locations where privacy regulations are violated, leading to potential security breaches and compliance issues.
Innovation Solution
A system that identifies token states and geographic locations to determine compliance with security policies, preventing resource consumption if policies are violated, and allowing consumption if they are not, by managing OAuth tokens and sending messages for new authentication when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If OAuth tokens are used to enable automatic access to cloud resources, then ease of operation is improved, but security reliability deteriorates because tokens continue to work even after credential changes
Solution Approach 1:
The system performs preliminary actions by monitoring token states and proactively invalidating OAuth tokens when security events occur (device loss, credential change, policy violation) before unauthorized access can happen. The consumption control module continuously checks token states and preemptively blocks access by setting tokens to expired state, preventing potential security breaches before they occur.
2Productivity
If continuous access to cloud resources is allowed, then productivity is improved, but harmful factors increase due to potential privacy regulation violations
Solution Approach 1:
The consumption control module implements continuous feedback by monitoring token states, device locations, and security policies in real-time. When a policy violation is detected (such as accessing resources from a restricted geographic location), the system immediately responds by invalidating the token and blocking further access, ensuring continuous compliance with privacy regulations while allowing productive resource consumption within acceptable parameters.
3Ease of operation
If OAuth tokens store expiration data locally, then ease of operation is improved, but device complexity increases due to separate policy data storage requirements
Solution Approach 1:
The system segments token state management into two distinct components: (1) the access token stored on the mobile device containing expiration data for authentication purposes, and (2) the policy data store on the server containing token state information for security control. This segmentation allows the device to maintain simple token storage while the server handles complex policy enforcement, distributing complexity appropriately across the system architecture.
Data Source
AI summary
A server computer system identifies a request from an application hosted on a mobile device to consume a protected resource hosted by a cloud. The request is transmitted via a resource authorization protocol. The server computer system identifies a token state of an application on the mobile device. The token state is stored in a policy data store that is separate from expiration data that is stored on an access token on the mobile device. The server computer system determines whether the token state violates a security policy that is associated with a user that is assigned to the mobile device and prevents consumption of the protected resource in response to a determination that the token state violates the security policy. The server computer system allows consumption of the protected resource in response to a determination that the token state does not violate the security policy.