Virtualized Server Cloud File Sharing Security

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Solution Overview

Problem

Existing file sharing methods over public networks and cloud storage lack sufficient security for certain types of data and digital industries, as they may not adequately protect against unauthorized access and data breaches.

Innovation Solution

A cloud-based system utilizing a virtualized server that manages secure file sharing by assigning cloud identifiers, providing notifications, and facilitating retrieval instructions without storing or transmitting the actual files, using separate private storage servers with access control, ensuring secure access and transfer of electronic files.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If files are stored and transmitted through public cloud storage services, then file sharing convenience is improved, but security and confidentiality of the files deteriorate

Engineering Contradiction:

Improvefile sharing convenienceVSAvoidfile security and confidentiality

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent introduces a virtualized server as an intermediary between the sender and receiver. This server receives share requests, generates unique cloud identifiers, and facilitates file transfer without actually storing the file content. The intermediary approach maintains security by never having direct access to file data while still enabling convenient sharing operations.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent extracts the file content handling from the virtualized server, leaving only metadata management (cloud identifiers, access rights) on the server. The actual file data is transferred directly between sender and receiver systems, removing the security risk of centralized storage while maintaining the benefits of cloud-mediated sharing.

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If cloud identifiers are generated and managed by the virtualized server, then file access control is improved, but system complexity increases

Engineering Contradiction:

Improvefile access controlVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent transforms the complex problem of file access control into a simpler parameter-based system using cloud identifiers. Instead of managing complex user permissions and access rights, the system uses unique identifiers that inherently encode access information. The virtualized server generates these identifiers with specific parameters (sender ID, receiver ID, file reference) that automatically enforce access control without complex logic.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9830330B2Systems and methods for secure cloud-based media file sharing

Publication Date: 2017.11.28 SIGNIANT INC

AI summary

Cloud-based systems and methods to securely share electronic files use a cloud or virtualized server to handle management tasks related to file sharing, while file storage is maintained securely by servers that are not part of the cloud. The content of the file to be shared is not transmitted to or by the cloud. Share requests from file senders, notifications to target recipients, and retrieve requests from target recipients are transmitted to and/or by the cloud.