Dynamic Encryption Key Switching for Privacy Security
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Solution Overview
Problem
Existing identification information transmission systems fail to prevent continuous identification of individuals or objects equipped with identification information transmission apparatuses by third parties, as encryption keys are not effectively switched to maintain privacy and security.
Innovation Solution
An identification information transmission apparatus that includes an encryption unit to encrypt identification information using an initial key and a reception unit to receive and switch to a new encryption key, ensuring that the encryption key used for identification information is periodically changed, thereby preventing continuous identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encryption key switching is not implemented, then the identification information transmission system operates simply and continuously, but the location of individuals or objects can be continuously identified by third parties, compromising privacy and security
Solution Approach 1:
The patent implements dynamic encryption key switching where the encryption key changes based on communication events. The identification information transmission apparatus switches encryption keys from a first encryption key to a second encryption key upon receiving communication from a reader writer, preventing continuous location tracking while maintaining operational simplicity
Solution Approach 2:
The patent employs periodic encryption key switching triggered by communication events between the identification information transmission apparatus and reader writers. This periodic key change mechanism ensures that encryption keys are updated at regular intervals defined by communication occurrences, balancing security requirements with system operational simplicity
2Reliability
If encryption key switching is implemented frequently, then privacy and security are enhanced, but the complexity of key management and system operation increases
Solution Approach 1:
The patent implements automatic encryption key switching without requiring manual intervention. The identification information transmission apparatus autonomously switches encryption keys based on communication events with reader writers, eliminating the need for manual key management while maintaining high security standards
Solution Approach 2:
The patent uses communication events as feedback triggers for encryption key switching. When the identification information transmission apparatus receives communication from a reader writer, this feedback signal automatically triggers the encryption key switch, creating a responsive security mechanism that adapts to actual usage patterns
Data Source
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AI summary
An identification information transmission apparatus includes an encryption unit encrypting identification information for identifying a person or an object using an encryption key, a transmission unit transmitting the encrypted identification information; and a reception unit receiving another encryption key different from one encryption key used to encrypt the identification information. After reception of the other encryption key, the encryption unit switches the encryption key used to encrypt the identification information from the encryption key to the other encryption key.