Server-Based Cryptographic Authentication for Aerosol Devices
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Solution Overview
Problem
Existing aerosol-generating devices face challenges in securely restricting underage users and preventing unauthorized access, as current locking and unlocking solutions are often cumbersome, insecure, and can be bypassed by sophisticated users.
Innovation Solution
A server-based cryptographic authentication system that allows authorized users to securely unlock and lock aerosol-generating devices using a unique, single-use process, ensuring only verified users can access the devices, with features like temporary locking and limited unlock grants to prevent unauthorized use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional locking mechanisms (password, biometric) are used, then user authentication is possible, but the system can be bypassed by sophisticated unauthorized users
Solution Approach 1:
The patent introduces a server as an intermediary between the user and the aerosol-generating device. The server handles cryptographic authentication and key management, allowing the device to use simple locking/unlocking operations while maintaining high security through server-based verification. This resolves the contradiction by moving complex authentication logic from the device to the server.
Solution Approach 2:
The patent replaces traditional mechanical or simple electronic locking mechanisms (passwords, biometric scanners) with a cryptographic authentication system. Instead of relying on physical security features that can be bypassed, the system uses mathematical cryptography (private keys, public keys, digital signatures) to secure access, making it resistant to sophisticated bypass attempts while keeping the device hardware simple.
2Reliability
If complex authentication systems are implemented, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The patent performs authentication preliminarily by establishing a secure connection with the server and obtaining authorization keys before the actual unlocking operation. The user's account is pre-validated, and cryptographic keys are pre-generated and stored securely. When unlocking is needed, the device simply needs to present its identifier and receive the pre-computed unlock key from the server, making the actual unlocking action simple and fast.
Solution Approach 2:
The system enables self-service authentication where the device automatically manages its own cryptographic keys and authentication process without requiring manual intervention. The server autonomously verifies device identifiers and generates appropriate unlock keys, eliminating the need for users to manually configure complex security settings or remember multiple credentials.
3Adaptability or versatility
If resale between users is allowed, then device circulation is improved, but unauthorized access by underage users increases
Solution Approach 1:
The system performs preliminary authorization verification before allowing device access. Each user must be pre-registered in the server's database with valid identification, and the server verifies this information before issuing unlock keys. This preliminary check prevents underage users from accessing devices through resale, as their authentication credentials would be rejected by the server even if they obtain the device physically.
Solution Approach 2:
The server provides continuous feedback to the device about authorization status. When a user attempts to unlock the device, the server verifies the user's credentials against its database and returns an authorization decision. This feedback mechanism ensures that only properly authenticated users can access the device, regardless of how they obtained it, preventing unauthorized resale exploitation while allowing legitimate transfers.
Data Source
AI summary
An aerosol-generating device (102) comprising a controller comprising one or more processors. The controller (128) is configured to provide an unlockable feature, transmit an unlock request to a server to unlock the unlockable feature, receive an unlock grant from the server in response to the transmitted unlock request, and unlock the unlockable feature in response to reception of the unlock grant.