Dynamic Locking Based on Data Significance Evaluation
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Solution Overview
Problem
Existing information processing apparatuses cannot dynamically adjust their locking and unlocking conditions based on the changing significance of saved data, leading to potential security breaches when significant information is stored, as they fail to account for the increasing value of data over time.
Innovation Solution
An information processing apparatus with a secret level evaluation section that calculates a secrecy score for saved data items, allowing the lock-in and unlock conditions to be adjusted based on these scores, thereby making the locking function more stringent or lenient accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed locking function is implemented with predetermined lock-in conditions, then the device complexity is reduced and ease of operation is improved, but the adaptability to changing data significance is worsened
Solution Approach 1:
The lock-in condition is made dynamic by automatically adjusting the required security level based on the evaluated significance of saved data. As data significance increases over time or with accumulated information, the system dynamically strengthens the lock-in condition, requiring more stringent authentication. This resolves the contradiction by making the system adaptable without requiring user intervention to configure complex rules.
2Reliability
If the lock-in condition is made more severe to protect significant data, then the security level is improved, but the ease of operation is worsened
Solution Approach 1:
The authentication requirement is locally adjusted based on the specific significance level of saved data. When significant data is detected, the system applies stricter authentication conditions (e.g., requiring multiple authentication methods). When data significance is low, simpler authentication suffices. This localized adaptation resolves the contradiction by applying severity only where needed.
Solution Approach 2:
The system continuously evaluates the significance of saved data and uses this feedback to adjust the lock-in condition. This closed-loop control ensures that security measures are proportional to the actual risk, automatically strengthening or weakening authentication requirements based on real-time data assessment, thus balancing security and usability.
3Device complexity
If a predetermined unlock condition is set, then the device complexity is reduced, but the ability to respond to accumulated information value is worsened
Solution Approach 1:
The system performs self-service by automatically evaluating the significance of its own saved data and adjusting unlock conditions accordingly. The information processing apparatus monitors its own data accumulation and security needs, eliminating the need for external configuration or user management of complex unlock rules. This resolves the contradiction by making the system self-adaptive without increasing operational complexity.
Data Source
AI summary
The present invention provides an information processing apparatus capable of dynamically changing a security level according to significance of overall data saved in a terminal. A portable telephone terminal 100 includes a lock function to inhibit (allow) use of predetermined functions (part of or all of the functions) of the terminal when a lock-in condition (an unlock condition) is satisfied. The terminal 100 includes a secret level evaluating section 16 for calculating a secret level of the overall apparatus on the basis of scores set respectively to saved data items and a lock-in condition setting section 15 for making, in response to the secret level, the lock-in condition (unlock condition) more mitigated or more severe. Due to the configuration, for example, when significant data is received, the secret level of the overall terminal increases and the lock-in condition (unlock condition) is made more mitigated (more severe).