Transactional Cryptography Key Exchange

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Solution Overview

Problem

Current encryption methods, such as Public Key Infrastructure (PKI), are vulnerable to key reverse engineering due to publicly stored keys, compromising the security of data in transit and stored data, especially when using QR codes for sensitive transactions.

Innovation Solution

Transactional Cryptography (TC) employs multiple layers of encryption and Discreet Key Exchange methodology to generate unique, one-time asymmetrical key-pairs for each communication transaction, ensuring that encryption keys are not publicly stored and are discarded after use, using a trusted third-party repository for key distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If Public Key Infrastructure (PKI) is used for encryption, then data can be secured through public key availability, but security is compromised due to vulnerability of key reverse engineering

Engineering Contradiction:
Improvedata securityVSAvoidkey reverse engineering vulnerability
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary key generation and establishes secure key pairs before actual data transmission occurs. Encryption keys are generated in advance and stored securely, while decryption keys are never exposed publicly, preventing reverse engineering before it can happen.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention extracts and removes the vulnerable public key storage component from the system. Instead of storing encryption keys publicly as in traditional PKI, the system only stores decryption keys privately on user devices, eliminating the attack surface for key reverse engineering while maintaining encryption capability.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If encryption keys are publicly stored for easy access, then communication security is enabled, but key security is weakened exposing the system to attacks

Engineering Contradiction:
Improvekey accessibilityVSAvoidkey security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The invention introduces an intermediary trusted third-party repository that facilitates key distribution without requiring public key storage. The repository acts as a secure mediator that provides decryption keys to authorized users through verified requests, enabling easy key access while maintaining security through private key management.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system inverts the traditional PKI model by storing decryption keys privately rather than encryption keys publicly. This inversion maintains ease of operation through the trusted repository while fundamentally improving key security by eliminating public key exposure.

Inventive Principle:
Principle #13The other way round (Inversion)

3Device complexity

If the same key-pair is reused for multiple transactions, then system complexity is reduced, but security is compromised due to key interception risk

Engineering Contradiction:
Improvekey management complexityVSAvoidtransaction security
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system implements dynamic key management where decryption keys are generated specifically for each transaction or communication session. Keys are created on-demand, used immediately for the specific transaction, and then discarded, ensuring that even if one key is compromised, other transactions remain secure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention treats encryption keys as disposable, short-lived objects rather than permanent assets. Each transaction receives a unique decryption key that is discarded after use, eliminating the risk associated with key reuse while keeping the system simple through automated key lifecycle management.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS11177959B2Cryptography method and system for securing data via electronic transmission
Publication Date: 2021.11.16 WATERS THOMAS J
  • US11177959B2 patent drawing
  • US11177959B2 patent drawing
  • US11177959B2 patent drawing

AI summary

A blockchain-based record of transactions taking place through a smartphone or other electronic/peripheral device. The blockchain record itself contains mathematical hashes, including encryption if desired, based on the various data components of a smartphone or other device, which creates a distributed ledger system that is extremely difficult to break into to add, delete, or alter individual transactions after the fact.