Secure Content Distribution Using Segmented Password Encryption

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Solution Overview

Problem

Existing systems for displaying and distributing high-quality images are costly and lack secure mechanisms to prevent unauthorized use, making it difficult for businesses and individuals to afford and manage diverse image displays while ensuring authorized usage.

Innovation Solution

A secure content distribution system that employs password encryption and decryption methods to control access, using identification and encryption passwords stored in a secure administrative account on content clients, ensuring that only authorized users can access and display the images.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If images are distributed to multiple content clients for display, then the variety and accessibility of displayed images is improved, but the risk of unauthorized use and reverse-engineering increases

Engineering Contradiction:
Improveimage display varietyVSAvoidauthorized usage control
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent divides the encryption key into multiple segments and distributes different segments to different content clients. Each client receives only a portion of the complete key, making it impossible for any single client to decrypt and misuse the images independently. This segmentation approach enables wide distribution while maintaining security control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a secure key management system that acts as an intermediary between the image source and content clients. This intermediary controls key distribution, manages key segments, and ensures that only authorized clients receive the necessary decryption segments, thereby preventing unauthorized use while enabling broad image distribution.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If encryption passwords are stored on content clients for secure access, then unauthorized access is prevented, but the complexity of the distribution system increases

Engineering Contradiction:
Improveaccess securityVSAvoiddistribution system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements automated key distribution and management mechanisms where the system itself handles the complex tasks of key segmentation, distribution, and renewal without requiring manual intervention. The content clients automatically receive and manage their key segments, reducing operational complexity despite the enhanced security measures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent creates a universal key management infrastructure that serves multiple functions: key generation, segmentation, distribution, storage, and renewal. This multi-functional system consolidates what would otherwise be separate complex processes into a single integrated solution, making the overall system more manageable despite the increased security requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If high-quality images are distributed widely, then accessibility and variety improve, but the cost of licensing and maintaining image rights increases

Engineering Contradiction:
Improveimage accessibilityVSAvoidlicensing cost
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent enables the creation and distribution of multiple encrypted copies of the same high-quality images to numerous content clients simultaneously. Each client receives an encrypted copy that can only be decrypted with their specific key segment, allowing unlimited distribution of image copies without incurring additional licensing costs for each individual copy.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent changes the parameter of image protection from physical ownership control to cryptographic access control. Instead of limiting distribution through expensive licensing agreements for each copy, the system uses encryption parameters to control access, allowing unlimited distribution of image copies while maintaining rights management through key control rather than traditional licensing models.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS7624072B2Method and system for securely distributing content
Publication Date: 2009.11.24 GALLERYPLAYER INC
  • US7624072B2 patent drawing
  • US7624072B2 patent drawing
  • US7624072B2 patent drawing

AI summary

A system for securely distributing content is provided. A distribution system includes a content server that distributes content to content clients via a communications link or a tangible medium. The distribution system uses passwords to encrypt and decrypt content and to control access to sensitive information stored on the content clients. The distribution system initially receives various passwords from a user and encrypts each password. Some of the encrypted passwords are “identification passwords” and others are “encryption passwords.” The identification passwords are used to control access to sensitive information stored on the content clients, and the encryption passwords are used to encrypt and decrypt content that is distributed to the content clients. The distribution system configures each content client to contain the identification passwords and encryption passwords in a secure folder.