Personal Messaging Security via Time-Bound Decryption
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Solution Overview
Problem
Current technologies do not provide adequate security measures for ensuring the confidentiality and integrity of electronic communications, as they lack effective encryption and access control mechanisms.
Innovation Solution
Implementing personalized security keys derived from user inputs such as device gyrations, audio, or text patterns, and imposing time limits for decryption, allowing only intended recipients to access encrypted messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional encryption methods are used, then message security is maintained, but security against device compromise is insufficient
Solution Approach 1:
The security system segments the decryption process into two independent parts: encrypted message content and time-sensitive decryption credentials. The credentials are further segmented into time-window-based access tokens that are valid only for specific time periods. This segmentation ensures that even if device storage is compromised, attackers cannot decrypt messages outside the valid time windows without the specific time-bound credentials.
Solution Approach 2:
The system performs preliminary actions by pre-establishing time windows and generating time-sensitive decryption credentials before message delivery. The sender and recipient pre-agree on time windows during which messages can be decrypted, and the system automatically generates and distributes the appropriate credentials within these windows. This preliminary setup creates a time-based security layer that protects against device compromise.
2Reliability
If access control mechanisms are added, then message confidentiality is improved, but system complexity increases
Solution Approach 1:
The access control system is made dynamic through time-window-based credentials that automatically expire and become invalid after specific time periods. The decryption credentials are not static but change over time, with different credentials required for different time windows. This dynamic approach provides strong access control while keeping the implementation relatively simple, as the time-based validation is straightforward to enforce.
3Reliability
If time limits for decryption are imposed, then security against unauthorized access is improved, but user convenience decreases
Solution Approach 1:
The time-window system operates autonomously without requiring continuous user intervention. The system automatically manages credential distribution and validation within pre-established time windows. Users simply need to have the appropriate device and be within the valid time window to automatically receive and use decryption credentials, eliminating the need for manual security negotiations or complex authentication processes.
Data Source
AI summary
A method may include creating, by a user device, an electronic message, the electronic message comprising destination information corresponding to an intended recipient of the electronic message. The method many include receiving, by the user device and from a user, a security key corresponding to a particular type of user input and corresponding to the intended recipient of the electronic message. The method may include encrypting, by the user device, the electronic message based on the security key, and the method may include communicating, by the user device, the electronic message based on the destination information corresponding to the intended recipient.