Communication Apparatus Certificate Generation Mode Selection
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Solution Overview
Problem
SSL certificate generation in wireless communication systems, such as those used in Multi-Function Printers, results in high calculation processing loads, leading to delayed responses and degraded user operability due to the need for certificate generation during connection requests.
Innovation Solution
A communication apparatus and method that determine whether to operate in a first mode for direct wireless connection, where certificate generation occurs before connection, or a second mode where an existing certificate is used, allowing for immediate role decision processing and reducing processing load by selecting a lower-load encryption method based on the mode activated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If certificate generation processing is executed when connection using encryption is requested from a client, then secure communication is achieved, but calculation processing load increases and response time is delayed
Solution Approach 1:
The patent applies preliminary action by generating the SSL certificate in advance before the connection request is received. The control unit generates a server certificate and stores it in the storage unit during initialization or idle periods. When a connection request arrives, the pre-generated certificate is immediately available for use, eliminating the need to perform certificate generation processing during the connection phase, thus resolving the contradiction between achieving secure communication and maintaining fast response time
2Reliability
If certificate generation processing is executed when connection using encryption is requested, then secure communication is established, but user operability is degraded due to waiting time
Solution Approach 1:
The patent implements preliminary action by performing certificate generation during system initialization or idle periods before the user initiates any communication operations. The control unit generates and stores the server certificate in advance, so when the user attempts to connect to a target apparatus, the certificate is already ready. This eliminates the visible waiting time for users while maintaining secure communication, thereby improving ease of operation without sacrificing reliability
Data Source
AI summary
A communication apparatus capable of secure wireless communication by using a certificate, comprises: a determining unit that determines, in the communication apparatus, one of whether a first mode which operates as a role in deciding a communication channel used for direct wireless connection with a communication target apparatus is activated and whether a second mode which executes role decision processing of deciding whether to operate as the role in deciding the communication channel used for the direct wireless connection with the communication target apparatus is activated; and a control unit that executes certificate generation processing before being connected to the communication target apparatus if the determining unit determines that the first mode is activated and obtain the certificate held in the communication apparatus before executing the role decision processing if the determining unit determines that the second mode is activated.