Keystroke Dynamics Authentication for Message Security

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Solution Overview

Problem

Existing authentication systems for messages lack robustness in verifying the authenticity of message creators, particularly in electronic systems, where signature or password verification is not sufficiently secure against unauthorized access.

Innovation Solution

An authentication system that collects and compares keystroke dynamics to generate a unique template for each user, using diagraph timing patterns to verify the identity of message creators, ensuring only authorized individuals can access protected messages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional signature or password verification is used, then message authentication is implemented, but security against unauthorized access is insufficient

Engineering Contradiction:

Improvemessage authentication reliabilityVSAvoidunauthorized access

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces traditional mechanical authentication methods (physical signatures, passwords) with a biometric-based keystroke dynamics system. The system captures temporal characteristics of keystrokes (timing, duration, rhythm) and uses these dynamic behavioral patterns to authenticate users, substituting static authentication mechanisms with dynamic physiological-based verification that is harder to replicate or compromise.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If keystroke dynamics authentication is implemented, then message security is enhanced, but system complexity increases

Engineering Contradiction:

Improvemessage securityVSAvoidauthentication system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system performs self-service by automatically capturing keystroke dynamics during normal message composition without requiring separate authentication actions from the user. The authentication data is collected passively as the user types, and the system automatically processes and verifies the keystroke patterns, eliminating the need for manual enrollment or separate authentication steps.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The keystroke dynamics system serves multiple functions: it authenticates users, creates digital signatures, and provides audit trails. The same keystroke data collection mechanism used for typing messages is also used for authentication, and the system can generate both authentication verification and cryptographic signatures from the same behavioral data, reducing overall system complexity through multi-functionality.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS7706574B1Identifying and protecting composed and transmitted messages utilizing keystroke dynamics

Publication Date: 2010.04.27 CONCENTRIX SREV INC

AI summary

A system for authenticating messages using keystroke dynamics identifying a composer of a message using diagraphs transmitted by the use of an input device. Keystrokes are gathered by modules that determine the timing factors between each keystroke and diagraph that is created by the message composer. Once sufficient keystrokes and diagraphs are monitored that allows a generation of an identifier of a unique message composition rhythm, a unique signature of the message creator is stored within the created message. This authentication method is embedded within a message. When a user tries to access or authenticate a message, the user will be verified against the authorized signature contained within the message or authorized database of readers. If a match occurs, the user will then be allowed to access the message.