Password Re-entry Authentication for Security and Convenience

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Solution Overview

Problem

Conventional password-based authentication systems face challenges in balancing security and user convenience, as users often struggle to remember complex passwords, leading to incorrect entries and data security vulnerabilities due to the use of simpler or reused passwords.

Innovation Solution

An electronic device and method that authenticates users based on the re-entry of a correct password a predefined number of times, providing an additional layer of security by requiring multiple correct entries rather than a single complex password, while allowing simpler passwords to be used.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If users set strong complex passwords to ensure security, then data protection from unauthorized access is improved, but user convenience deteriorates as users struggle to remember and correctly enter complex passwords

Engineering Contradiction:
Improvedata protectionVSAvoidpassword entry
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The authentication process is segmented into multiple independent password entry steps. Instead of relying on a single complex password, the system divides authentication into sequential password entries (e.g., first password, second password), where each entry is simpler but collectively provides strong security through the combination of multiple correct entries required.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If users use simpler passwords to improve convenience, then ease of operation is improved, but security deteriorates as simple passwords are vulnerable to attacks

Engineering Contradiction:
Improvepassword recallVSAvoidsecurity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system adds a temporal dimension to password authentication by requiring multiple password entries over time. Instead of relying solely on password complexity (one-dimensional security), the system introduces the dimension of repeated verification, where simple passwords become secure through the requirement of multiple correct sequential entries, effectively transforming the security model from static to dynamic.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If multiple password entries are required to enhance security, then reliability is improved, but the authentication process time increases

Engineering Contradiction:
Improveauthentication securityVSAvoidauthentication time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system applies partial verification by not requiring all password entries to be perfectly accurate to proceed, but rather using the sequence of entries to progressively verify identity. The authentication process accepts partial correct entries and uses contextual verification to determine authenticity, reducing the time penalty while maintaining security through the cumulative verification of multiple entries.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS12259955B2Authentication of users based on re-entry of passwords
Publication Date: 2025.03.25 SONY GROUP CORP
  • US12259955B2 patent drawing
  • US12259955B2 patent drawing
  • US12259955B2 patent drawing

AI summary

An electronic device and method for authentication of users based on re-entry of passwords is provided. The electronic device retrieves a pre-stored password associated with a user and a predefined number associated with the retrieved pre-stored password. The retrieved predefined number corresponds to a number of times an entry of a correct password is required for an authentication of the user. The electronic device receives a set of user inputs that corresponds to an entered password associated with the user. The electronic device compares, for the number of times associated with the user, the entered password in each user input with the retrieved pre-stored password. The electronic device determines that the entered password in each user input corresponds to the retrieved pre-stored password, based on the comparison. The electronic device authenticates the user based on the determination and controls a display device to render authentication information based on the authentication.