Asymmetric Key Encryption for Secure Mobile Communication

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Solution Overview

Problem

Establishing a secure link between a portable communication device and a remote server is challenging, particularly due to the risk of 'man in the middle' attacks.

Innovation Solution

The implementation of asymmetric key encryption, combined with location identifiers, randomized passwords, device and server identifiers, and connection identifiers, ensures secure communication by authenticating signals and minimizing unauthorized access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If asymmetric key encryption is implemented to secure communication links, then security against man in the middle attacks is improved, but device complexity increases

Engineering Contradiction:

ImprovesecurityVSAvoidcomplexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The encryption system is segmented into multiple independent components: asymmetric key encryption for establishing secure channels, symmetric key encryption for data transmission, and multiple authentication mechanisms. This segmentation allows each component to be optimized independently while collectively providing robust security without requiring the entire system to be overly complex.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A certificate authority (CA) acts as an intermediary to issue and manage digital certificates that verify server identities. This intermediary layer enables trusted communication without requiring direct complex verification between devices, simplifying the overall system while maintaining high security standards through third-party validation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If multiple authentication mechanisms are used to minimize link corruption by unauthorized persons, then security is improved, but ease of operation deteriorates

Engineering Contradiction:

ImprovesecurityVSAvoidease of operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Authentication credentials, digital certificates, and encryption keys are pre-configured on devices before communication begins. This preliminary setup enables automatic authentication and encryption during actual communication, eliminating the need for users to manually perform complex security operations while maintaining strong security protections.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system performs automatic key generation, certificate validation, and encryption/decryption operations without requiring user intervention. Devices autonomously manage their own security credentials and authenticate with servers using pre-configured mechanisms, making the complex security operations transparent to users while maintaining high security standards.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9992176B2Systems and methods for encrypted communication in a secure network

Publication Date: 2018.06.05 NOWWW US

AI summary

A method for users of devices including mobile phones and computers to engage in encrypted communications with other devices using asymmetrical key exchange technology, involving the user of a device first creating a password and then at a later time re-entering that password on the device, with the result that when the password is re-entered the device is able to decrypt a set of software components that are required for a fresh session of encrypted communications.