Server Mobile Terminal Access Information Encryption
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Solution Overview
Problem
Existing systems for distributing information via two-dimensional codes on advertising media fail to prevent unauthorized access, as third parties can guess access information, leading to unintended users accessing sensitive information intended for specific individuals.
Innovation Solution
A server and mobile terminal system that encrypts identification information and generates access information containing a plain text URL, ensuring only authorized users can access the intended information by verifying encrypted identification information and terminal identifiers stored in the database.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access information is encrypted uniformly using previous encoding techniques, then unauthorized access is prevented, but authorized access becomes impossible
Solution Approach 1:
The access information is segmented into two distinct parts: a human-readable plain text URL and an encrypted machine-readable code containing identification information. This segmentation allows different systems (human users and mobile terminals) to utilize different parts according to their capabilities, resolving the contradiction between security and accessibility.
Solution Approach 2:
The server acts as an intermediary that receives the plain text URL from the printed access information, uses it to retrieve the corresponding encrypted identification information from its database, and then provides the encrypted code to the mobile terminal. This intermediary process enables both human-readable and machine-readable access without compromising security.
2Reliability
If all access information is encrypted, then third parties cannot guess access information, but mobile terminals incapable of decoding cannot access the server
Solution Approach 1:
The access information is divided into a plain text URL component that any system can read and an encrypted identification information component that provides security. This segmentation ensures compatibility with all mobile terminals while maintaining security through the encrypted portion.
Solution Approach 2:
Different parts of the access information have different properties: the URL is plain text for universal readability, while the identification information is encrypted for security. Each part serves its specific function, allowing the system to accommodate both simple and advanced terminals.
3Ease of operation
If access information is made readable, then mobile terminals can access the server, but third parties can guess and access other users' information
Solution Approach 1:
The access information is segmented into a public plain text URL and a private encrypted identification code. The URL enables accessibility while the encrypted code prevents unauthorized access by making guessing impossible, thus resolving the contradiction between readability and security.
Solution Approach 2:
The system uses the plain text URL as a readable copy for human users while maintaining the original encrypted identification information in the server's database for security verification. This copying approach allows readable access without exposing the actual identification information.
Data Source
AI summary
The server which provides at least one of an image and additional information of the image via a network to a mobile terminal of an access source when access is received from the mobile terminal via the network using access information recorded together with the image on a prescribed print medium, the server comprises: an encrypting device which encrypts identification information corresponding to the image; an access information generating device which generates the access information containing a plain text URL required for access to the server and the encrypted identification information; a print instruction information creating device which creates instruction information that the access information is recorded together with the image onto a print medium by a prescribed printer; a receiving device which receives the encrypted identification information contained in the access information from the mobile terminal when the access information recorded on the print medium is inputted to the mobile terminal; a decrypting device which decrypts the encrypted identification information that is received; and a transmitting device which transmits at least one of the image and the additional information of the image that correspond to the decrypted identification information to the mobile terminal.