Password Management Server Reserve Access

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Solution Overview

Problem

In distributed access control systems, failures in communication links can prevent password updates from being shared among multiple elements, leading to inconsistent password management and loss of access to devices.

Innovation Solution

Implementing an active and reserve password system across multiple password management servers, where the active password is updated and shared with reserve passwords, allowing servers to access devices using reserve passwords if communication failures occur, and updating passwords consistently across servers when communication is restored.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a distributed access control system is implemented across multiple geographically distributed servers, then system availability and access continuity are improved, but password synchronization consistency deteriorates due to communication link failures

Engineering Contradiction:

Improveaccess continuityVSAvoidpassword synchronization consistency

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The system performs preliminary actions by proactively detecting communication link failures before they cause password synchronization issues. The password management server monitors communication links and initiates failure detection procedures in advance, allowing the system to prepare alternative access mechanisms before actual password access failures occur.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where the password management server continuously monitors communication link status and receives feedback about link failures. This feedback drives automatic responses including detecting failed links, attempting alternative access methods, and notifying relevant parties about the communication status and access implications.

Inventive Principle:

Principle #23Feedback

2Stability of the object's composition

If active password updates are transmitted across communication links between servers, then password management consistency is improved, but system vulnerability to communication failures worsens

Engineering Contradiction:

Improvepassword management consistencyVSAvoidsystem resilience to communication failures

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The system applies beforehand cushioning by preparing and storing alternative passwords in advance before communication failures occur. When a communication link fails, these pre-prepared alternative passwords provide a cushion that allows continued system operation without requiring immediate communication with other servers for password retrieval.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The system changes parameters by transitioning between different password states (active password, alternative password, failed password) based on communication link status. When communication succeeds, the active password is used; when communication fails, the system parameters change to utilize alternative passwords, and this state can be updated when communication is restored.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If multiple password management servers are deployed in different locations, then system accessibility and fault tolerance are improved, but password update synchronization complexity increases

Engineering Contradiction:

Improvesystem accessibilityVSAvoidpassword update synchronization complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system applies segmentation by dividing password management into independent modular components deployed across multiple geographically distributed servers. Each server instance can independently detect communication failures and manage its own password state, reducing the complexity of centralized synchronization while maintaining overall system consistency through standardized failure detection and recovery procedures.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250209153A1Password management system and method for providing access to a password protected device

Publication Date: 2025.06.26 OSIRIUM

AI summary

Disclosed herein is a system and a method of providing access to at least one password protected device (D1-D5) via a password management system (100). The password management system (100) comprises first and second password management servers (200), each comprising a memory for storing an active password and a reserve password. The first and second password management servers (200) communicate the active and reserve passwords via a communication link (220). Either one of the first and second password management servers (200) requests access to the password protected device using the active password stored in the memory, and if the active password does not provide access, requests access using the reserve password.