Electronic Security System with Backup One-Time Codes
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Solution Overview
Problem
Existing electronic security systems for locks face high structural complexity and security risks due to reliance on encryption algorithms and keys, limiting their scalability and vulnerability to unauthorized use, especially in cases of loss or theft.
Innovation Solution
An electronic security system with a portable controller and multiple electronic release units using a set of backup one-time control codes stored in central memories, where the control processor ensures secure operation by replacing used codes and verifying authorization through unique identifiers, and optionally employing a blocking code for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encryption algorithms and keys are used to generate release codes, then security level is improved, but structural complexity increases
Solution Approach 1:
The patent extracts the encryption algorithm and key from the portable controller, placing them instead in the fixed electronic lock device. This allows the portable controller to be simpler while maintaining security, as the complex cryptographic functions reside in the lock rather than the key fob.
Solution Approach 2:
The patent uses a backup memory in the electronic lock that contains copies of the encryption key. When the portable controller loses synchronization or the lock is reset, the backup key copies allow the system to recover without requiring the complex encryption to be re-established or the portable controller to have stored the key.
2Reliability
If one-time control codes are used to prevent code reuse, then security against unauthorized use is improved, but the system becomes vulnerable to code loss or theft
Solution Approach 1:
The patent implements a preliminary synchronization process where the portable controller and electronic lock exchange and verify control codes before actual unlocking occurs. This preliminary action ensures that even if codes are lost or stolen, the system can detect the loss and prevent unauthorized access by requiring re-synchronization.
Solution Approach 2:
The system incorporates feedback mechanisms where the electronic lock monitors the status of control codes and communicates with the portable controller to resynchronize. When code loss or theft is detected, the feedback loop activates to restore proper synchronization, preventing the vulnerable state from persisting.
3Adaptability or versatility
If multiple keys are required for one lock or one key controls multiple locks, then versatility is improved, but ease of operation decreases
Solution Approach 1:
The patent implements a universal portable controller that can control multiple electronic locks through a networked system. Instead of requiring separate physical keys for each lock, a single portable controller with appropriate authorization can access multiple locks, maintaining versatility while simplifying operation.
Solution Approach 2:
The patent introduces a communication network as an intermediary between the portable controller and multiple electronic locks. This network mediator allows the single controller to authenticate and communicate with multiple locks, enabling one key to control multiple locks without requiring direct physical connection to each one.
Data Source
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AI summary
An electronic security system, comprising a portable electronic controller (1) equipped with an internal memory (2) to store a one-time control code (3), and respectively an identifier (10) and/or a blocking code (11) as well, and a structurally separated at least one electronic release unit (4), which is however functionally connected to it, the electronic release unit (4) comprises a central memory (5) provided to store the set (8) of the backup one-time control codes, and respective the identifier (10) as well, an actuator (7) and a control processor (6), which is communicatively connected to the central memory (5) of the electronic release unit (4), to the internal memory (2) of the portable electronic controller (1), and to the actuator (7). The actuator (7) is put into operation if, in the set (8) of the backup one-time control codes, there is a still unused backup one-time control code (3') identical to the one-time control code (3) stored in the internal memory (2) of the portable electronic controller (1). The system is especially provided for objects and facilities with the requirement for a maximum degree of security.