Antivirus-Based Email Access Restriction via Feature Extraction
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Solution Overview
Problem
Existing email transmission technologies face challenges in efficiently restricting access to erroneously transmitted emails, leading to potential information leakage and credibility issues, as existing mechanisms are not sufficient to prevent such transmissions effectively.
Innovation Solution
An information processing system that acquires feature information of target emails and registers them as computer viruses in antivirus software definition files, allowing antivirus software to detect and remove these emails, thereby restricting access to the intended recipients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a relay apparatus stores and accumulates email data in a server to restrict access to transmitted emails, then access restriction capability is improved, but system resource requirements increase
Solution Approach 1:
Instead of storing the complete email data in the relay apparatus, the system creates and transmits only a feature information copy (such as message ID, subject, or header data) to the receiving terminal. This copy is then used by the antivirus software to identify and remove the erroneous email, achieving access restriction without requiring the relay apparatus to store the full email content.
Solution Approach 2:
The invention extracts only the essential feature information from the complete email data and separates it from the full email content. By taking out only the necessary identifying features (message ID, subject line, sender/recipient information), the system enables the receiving terminal to perform email removal without the relay apparatus needing to maintain large amounts of stored email data.
2Productivity
If feature information is transmitted to antivirus software definition files, then access restriction efficiency is improved, but system complexity increases
Solution Approach 1:
The system utilizes the existing antivirus software infrastructure and definition file mechanism for email access restriction, rather than creating a completely new system. The feature information transmission and processing integrates with the already-deployed antivirus software, allowing it to perform both virus detection and erroneous email identification functions through the same definition file system.
Solution Approach 2:
The invention introduces feature information as an intermediary element that bridges the gap between the relay apparatus and the receiving terminal's antivirus software. This intermediary feature information (such as message ID or subject data) serves as a compact identifier that enables the antivirus software to recognize and remove erroneous emails without requiring complex direct communication protocols or additional storage mechanisms.
Data Source
AI summary
A processor acquires feature information of a target email, among email that has already been transmitted from the information processing apparatus, the target email specified by an operation of a user of the information processing apparatus as email to be restricted from viewing-access by a user of a receiving-side apparatus. The processor transmits feature information of the target email to an apparatus that receives information for identifying a removal target for a security measure system. The target email is designated as a removal target by the security measure system for the receiving-side apparatus.