AAA Server Dynamic Password Policy Enforcement
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Solution Overview
Problem
Existing AAA systems lack mechanisms to enforce password policies dynamically, particularly for passwords already in the system, and fail to adapt to changing security policies across different services and user roles.
Innovation Solution
A method and apparatus that dynamically mitigate noncompliant passwords by assessing their quality upon access attempts, performing responsive actions such as logging, reporting, forcing a change, or blocking access, and adjusting access levels based on predefined criteria and user roles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If password rules are enforced only at password creation time, then the system is simple to operate, but existing passwords in the repository cannot be ensured to comply with updated policies
Solution Approach 1:
The system performs preliminary evaluation of passwords against current policies before access is granted. When a user attempts to access a service, the AAA server evaluates whether their password meets the current password policy requirements. This preliminary check ensures compliance without requiring immediate password changes for all users, thus maintaining reliability while avoiding excessive complexity.
Solution Approach 2:
The system dynamically adjusts access based on real-time password policy evaluation. Instead of static enforcement at creation time only, the system continuously evaluates password compliance during access attempts and can dynamically modify access levels or require password changes based on current policy requirements. This dynamic approach ensures ongoing compliance while adapting to changing policies.
2Adaptability or versatility
If a single password policy is enforced for all services, then the system is easy to manage, but it cannot adapt to different security requirements of different services and user roles
Solution Approach 1:
The system applies different password policy criteria to different services and user roles. Each service can have its own specific password requirements, and users are evaluated against the appropriate policy set based on which service they are attempting to access. This local customization allows the system to adapt to specific security needs of different services while maintaining manageable complexity through automated policy selection.
Solution Approach 2:
The AAA server provides universal password policy enforcement across multiple services and contexts. A single unified system handles policy evaluation for different services, user roles, and access scenarios by selecting and applying the appropriate policy set. This multi-functional approach allows the system to adapt to various security requirements while centralizing policy management to avoid excessive complexity.
3Reliability
If strict password quality criteria are enforced for all users, then security is improved, but user convenience and ease of operation deteriorates
Solution Approach 1:
The system applies different levels of password quality enforcement based on user roles and service sensitivity. High-privilege accounts accessing critical services are subject to strict password quality criteria, while standard users accessing less sensitive services experience more convenient access. This differentiated approach maintains high security where needed while preserving user convenience elsewhere.
Solution Approach 2:
The system applies password quality enforcement selectively rather than universally. Instead of requiring all users to meet the highest security criteria for all access attempts, the system applies strict evaluation only when necessary based on user role, service type, and risk level. This partial enforcement maintains security for critical operations while avoiding unnecessary friction for routine access.
Data Source
AI summary
Techniques are disclosed for dynamically mitigating a noncompliant password. The techniques include obtaining a password from a user when the user attempts to access a service; determining whether the password meets quality criteria; and if the password does not meet the quality criteria, performing one or more responsive actions that relate to accessing the service.