Dual-Range Wireless Decryption for Secure Printing
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Solution Overview
Problem
Existing wireless communication technologies for printing data, such as Bluetooth, face security issues as unencrypted data can be intercepted by malicious third parties, and current encryption methods require cumbersome user operations like connecting a portable medium and inputting passwords.
Innovation Solution
An information processing apparatus and system that uses dual communication ranges and protocols (NFC and Bluetooth) to receive encrypted data and decryption information from a portable terminal device, allowing for secure decryption and printing with minimal user input, such as moving the device close to the printer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encrypted data is transmitted via wireless network, then data security is improved, but user operation complexity increases due to need for password input and portable medium connection
Solution Approach 1:
The patent segments the decryption information into two parts: a first decryption key transmitted via Bluetooth and a second decryption key obtained through NFC contactless communication. This segmentation allows the system to maintain security while simplifying user operation, as the NFC interface requires minimal user interaction compared to traditional password input methods
Solution Approach 2:
The patent introduces NFC technology as an intermediary mechanism for transmitting the second decryption key. This intermediary provides a contactless, secure, and user-friendly method for authentication, eliminating the need for physical portable medium connection and complex password input while maintaining data security
2Ease of operation
If unencrypted data is transmitted via wireless communication, then ease of operation is improved, but data security deteriorates as data can be intercepted by malicious third parties
Solution Approach 1:
The patent applies preliminary encryption to the data before transmission via Bluetooth. The encrypted data is transmitted securely, and the decryption process is initiated automatically through NFC contactless communication. This preliminary encryption ensures data security while the automated decryption process maintains transmission simplicity
Solution Approach 2:
The patent changes the communication parameter from unencrypted to encrypted transmission mode. By implementing encryption algorithms on the transmitted data and using dual-key decryption mechanisms, the system achieves secure wireless communication while maintaining ease of operation through automated authentication processes
3Reliability
If portable medium connection and password input are required for decryption, then data security is improved, but device complexity increases due to multiple connection steps
Solution Approach 1:
The patent merges Bluetooth and NFC communication technologies into a unified decryption system. Bluetooth transmits the first decryption key, while NFC provides the second decryption key through contactless communication. This merging eliminates the need for separate portable medium connection and password input steps, reducing device complexity while maintaining security
Solution Approach 2:
The system implements self-service authentication where the NFC interface automatically authenticates the user and retrieves the second decryption key without requiring manual password input. This self-service mechanism simplifies the connection process by eliminating complex user interactions while maintaining data security through automated authentication
Data Source
AI summary
In an information processing apparatus, a first communication unit receives encrypted data from a portable terminal device when the portable terminal device is within a first communication range, a second communication unit receives decryption information from the portable terminal device when the portable terminal device is within a second communication range shorter than the first communication range, and a decryption unit decrypts the encrypted data with the decryption information.