Piezoelectric Signal Encryption for Dynamic Data Keys

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Solution Overview

Problem

Existing data transmission networks are vulnerable to cyber-attacks, leading to data theft of sensitive information, as current systems lack effective methods to prevent or avoid such theft.

Innovation Solution

Utilizing a piezoelectric device to generate random electrical signals based on mechanical stimuli, which are used to create dynamic encryption keys for encrypting data, thereby enhancing data security by making it difficult for attackers to decipher the encryption keys.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If static encryption keys are used for data transmission, then data encryption can be implemented, but data security is compromised due to vulnerability to cyber-attacks and data theft

Engineering Contradiction:

Improvedata securityVSAvoiddynamic key generation capability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent transforms static encryption keys into dynamic, time-varying keys by utilizing piezoelectric materials that generate electrical signals in response to mechanical stimuli. The encryption key changes continuously based on applied pressure or stress, making the system adaptive and resistant to cyber-attacks. This dynamic characteristic ensures that even if one key is compromised, subsequent keys remain secure.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the fundamental parameter of encryption keys from fixed values to time-dependent signals generated by piezoelectric material. The electrical signal parameters (voltage, frequency) vary with mechanical input, creating encryption keys that are functions of time and applied stress, thereby enhancing security against static analysis and reverse engineering.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If piezoelectric material is used to generate dynamic encryption keys, then data security is enhanced, but device complexity increases

Engineering Contradiction:

Improvedata securityVSAvoidpiezoelectric integration complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The piezoelectric material serves multiple functions simultaneously: it generates electrical signals for encryption key generation and can also power the electronic device through energy harvesting. This multi-functionality reduces the need for separate power supply components and simplifies the overall device architecture despite the added security functionality.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The piezoelectric material enables the device to generate its own encryption keys autonomously through mechanical stimuli from normal device operation or external sources. The system self-generates the security credentials without requiring external key distribution infrastructure, reducing system complexity while enhancing security.

Inventive Principle:

Principle #25Self-service

3Duration of action of stationary object

If surplus electrical power from piezoelectric material is stored in battery, then battery life is extended, but energy storage capacity requirements increase

Engineering Contradiction:

Improvebattery lifeVSAvoidbattery capacity

Core Design Contradiction:

Duration of action of stationary objectVSQuantity of substance

Solution Approach 1:

The piezoelectric material continuously generates electrical energy during device operation through normal mechanical stimuli. This continuous energy generation replenishes the battery in real-time, extending operational duration without requiring a larger battery capacity. The system maintains continuous useful action by converting ambient mechanical energy into electrical power.

Inventive Principle:

Principle #20Continuity of useful action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The dynamic encryption keys, generated from random electrical signals, enhance data security by preventing data theft and improving processing efficiency through power generation from surplus electrical energy stored in a battery, extending battery life and increasing data processing capacity.

Implementation Method 1

a piezoelectric material that is configured to convert mechanical stimuli into an electrical signal, wherein the electrical signal is a function of variations in pressure (e.g., mechanical stress) applied by the mechanical stimuli to the piezoelectric material

Methodology Applied

Scientific EffectPiezoelectric effect: Piezoelectric Effect

Implementation Method 2

surplus electrical power generated by the piezoelectric material may be stored in a battery

Methodology Applied

Scientific EffectElectrical energy storage: Electrical Accumulator

Data Source

PatentUS20260050698A1Data encryption using electrical signals generated by a piezoelectric device

Publication Date: 2026.02.19 BANK OF AMERICA CORP

AI summary

An electronic device detects that an electrical signal was generated by a piezoelectric material that is configured to generate the electrical signal when mechanical stress is applied to the piezoelectric material. The electronic device generates an encryption key based on the electrical signal generated by the piezoelectric material. In response to receiving a request to transmit data, the electronic device encrypts the requested data based on the encryption key to generate encrypted data and transmits the encrypted data.