Adaptive Access Control via Contextual Familiarity Scoring
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Solution Overview
Problem
Conventional access control systems rely solely on user-provided inputs for authentication, failing to adapt to environmental contexts, which can lead to inefficient and insecure authentication processes.
Innovation Solution
An access control system that evaluates current environmental and application usage data to compute a familiarity score, selecting an appropriate authentication scheme based on this score to dynamically adjust authentication methods according to the user's context.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional access control systems use fixed authentication schemes, then security is maintained through consistent verification, but authentication burden increases and efficiency decreases
Solution Approach 1:
The system dynamically selects authentication schemes based on environmental context and user behavior analysis. Instead of using a fixed authentication scheme, the system adjusts the authentication method and strength according to the current situation, such as location, time, device, and usage patterns, thereby improving efficiency while maintaining security.
Solution Approach 2:
The system changes authentication parameters (scheme type, verification strength, required factors) based on analyzed context factors. When the environment is deemed safe and behavior is normal, authentication is simplified; when risks are detected, more stringent authentication is applied, optimizing the balance between efficiency and security.
2Productivity
If access control systems adapt authentication to environmental context, then authentication efficiency improves, but system complexity increases
Solution Approach 1:
The system segments the authentication process into multiple independent components: context data collection, environmental factor analysis, user behavior analysis, risk assessment, and authentication scheme selection. Each component handles a specific aspect, making the overall complex system manageable and maintainable through modular design.
Solution Approach 2:
The system introduces an intermediary authentication management module that sits between the user and the resource. This intermediary analyzes context and coordinates the authentication process, shielding users from the complexity while enabling adaptive authentication. The intermediary translates complex environmental analysis into simple authentication decisions.
3Reliability
If access control systems use multiple authentication schemes, then security is enhanced through adaptive authentication, but device complexity increases
Solution Approach 1:
The system implements a universal authentication framework that can handle multiple authentication schemes (password, biometric, token-based, etc.) through a common interface and management mechanism. This multi-functional approach allows the system to select and apply appropriate authentication methods based on context without requiring separate systems for each scheme, thereby enhancing security while controlling complexity.
Data Source
AI summary
Techniques of controlling access to a resource involve selecting an authentication scheme for authenticating a user based on an environmental context in which the user is requesting access to the resource. Along these lines, the access control server receives application usage data from a user and separates the data into current environmental factors and current usage factors. In response, the access control server compares the current environmental factors to expected environmental factors for each of multiple predefined environmental contexts. Based on measures of closeness between the current and expected environmental factors, the access control server computes a familiarity score indicative of whether the request to access the resource is recognizable within the particular environmental context. The access control server then selects, based on the familiarity score, an authentication scheme from a choice of multiple such schemes by which to authenticate the user before granting the user access to the resource.