Encrypted Content Access for Calendar Events

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Solution Overview

Problem

Conventional solutions for distributing highly confidential information, such as large multimedia files, face challenges in providing limited duration access without early release, especially in scenarios like teleconferenced meetings, where early access could lead to information exposure.

Innovation Solution

Implementing an encryption mechanism using a public key pair, where content is encrypted and decrypted only at predetermined times, with compliance checks ensuring devices meet security and management policies, and access controls enforced through authentication and authorization processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If content is distributed early to meeting attendees, then productivity is improved by allowing advance access to confidential information, but security deteriorates due to risk of early release and information exposure

Engineering Contradiction:
Improveadvance access to contentVSAvoidsecurity of confidential information
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The content is prepared and distributed in encrypted form before the meeting, allowing attendees to have advance access. The decryption key is released at the predetermined time (meeting start), enabling attendees to access the content securely without early exposure risk

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

An encryption mechanism acts as an intermediary between the content and attendees. The encrypted content can be distributed early safely, and the decryption process controlled by timing mechanisms ensures security while enabling productivity

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If content is encrypted and access is controlled until predetermined time, then security is improved by preventing early release, but productivity deteriorates by restricting advance access to information

Engineering Contradiction:
Improvesecurity controlVSAvoidadvance access capability
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The access control system is dynamic, transitioning from restricted access (encrypted state) to permitted access (decrypted state) at the predetermined time. This allows security to be maintained during distribution while automatically enabling productivity when needed

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The decryption key is released periodically at specific times (e.g., meeting start time). This periodic release mechanism maintains security during the distribution phase while ensuring access capability is activated when productivity is needed

Inventive Principle:
Principle #19Periodic action

3Productivity

If large multimedia files are transmitted before the meeting, then productivity is improved by allowing early download, but security deteriorates due to potential early exposure of confidential information

Engineering Contradiction:
Improvedownload timing flexibilityVSAvoidinformation exposure risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The potential harm of early distribution is converted into a benefit by using encryption. The encrypted file can be distributed early without security risk, and the same distribution mechanism becomes beneficial by enabling advance preparation while maintaining security through the encryption layer

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Data Source

PatentUS9942242B2Content access for duration of calendar events
Publication Date: 2018.04.10 OMNISSA LLC
  • US9942242B2 patent drawing
  • US9942242B2 patent drawing
  • US9942242B2 patent drawing

AI summary

Content access for the duration of a calendar event may be provided. Upon receiving a calendar invitation comprising a start time, an end time, and an encrypted attachment, a user may accept or reject the calendar invitation. If the calendar invitation is accepted, an acceptance notification associated with the calendar invitation may be transmitted. Upon receiving a request to access the encrypted attachment, a determination as to whether the request to access the encrypted attachment occurs within the start time and the end time of the calendar invitation may be made. If the request to access the encrypted attachment does not occur within the start time and the end time of the calendar invitation, access to the encrypted attachment may be refused.