Password Management via Portable Medium Storage
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Solution Overview
Problem
Conventional password setting methods for information processing devices often result in easily guessable passwords being forgotten, leading to difficulties in password management.
Innovation Solution
A password setting method and device that record the password on a portable medium separate from the target device, ensuring the password is securely stored and easily retrievable, preventing forgetfulness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a character string hard to guess is set as the password, then security is improved, but the user may forget the password
Solution Approach 1:
The password management function is segmented into two parts: the target device stores the password for security, while a separate portable medium stores a copy for user reference. This segmentation allows the password to be both secure (stored in the device) and retrievable (stored on portable medium), resolving the contradiction between security and ease of management.
Solution Approach 2:
A portable medium acts as an intermediary between the user and the target device's password system. The user can access the password through this intermediate medium without compromising the security stored in the target device, thus balancing security requirements with user convenience.
2Reliability
If the password is stored only in the target device, then security is maintained, but the user cannot retrieve it if forgotten
Solution Approach 1:
The system performs a preliminary action by recording the password on a portable medium at the time of password setting. This advance preparation ensures that if the user forgets the password, it can be retrieved from the portable medium without compromising the security stored in the target device.
Solution Approach 2:
Instead of storing the original password only in the target device, a copy is made on a portable medium. This copying approach allows the user to retrieve the password from the portable medium while the original remains securely stored in the target device, preventing information loss without compromising security.
3Ease of operation
If an easily guessable character string is used, then password management is simple, but security is compromised
Solution Approach 1:
The portable medium serves as an intermediary that enables simple password management through easy retrieval, while allowing the use of strong, secure passwords in the target device. The intermediary provides the user with access to the password without requiring them to remember complex strings or use weak passwords.
Solution Approach 2:
The password retrieval function is extracted from the target device and placed on a separate portable medium. This extraction allows the target device to maintain high security requirements while the user gains convenient access to the password through the portable medium, simplifying password management.
Data Source
AI summary
The object is to improve convenience of password management. When a password is inputted to a target device, the inputted password is recorded in/on a medium separate from the target device, and the inputted password is applied to the target device when the recording of the password in/on the medium is finished.