Alphanumeric Password Visual Disambiguation for Authentication
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Solution Overview
Problem
Conventional authentication tokens face difficulties in distinguishing numbers and letters, leading to user confusion and potential lockouts due to mistaken input, and using only numbers results in weaker security.
Innovation Solution
Displaying alphanumeric passwords with distinct visual characteristics such as different colors or typesets for numbers and letters, allowing users to easily differentiate between them, thereby reducing authentication errors and enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If alphanumeric passwords are used to enhance security strength, then security is improved, but user confusion and authentication errors increase due to difficulty in distinguishing numbers from letters
Solution Approach 1:
The patent applies different visual characteristics (such as color, font style, or size) to different parts of the password (numbers versus letters) while keeping the overall password structure intact. This allows users to distinguish between numbers and letters without changing the password's security properties, as the cryptographic strength depends on the character set used, not the visual presentation.
Solution Approach 2:
The patent specifically uses color differentiation to distinguish numbers from letters in the password display. For example, numbers may be displayed in one color while letters are displayed in another color, making it easy for users to identify and enter the correct characters without reducing the password's security strength.
2Measurement precision
If visual differentiation is applied to distinguish numbers and letters, then user authentication accuracy is improved, but display complexity increases
Solution Approach 1:
The patent applies visual differentiation only to specific elements of the password (numbers and letters) rather than changing the entire display system. By selectively applying different visual characteristics to different character types, the patent improves authentication accuracy without requiring a complete redesign of the display interface.
Solution Approach 2:
The patent changes visual parameters (such as color, font, or size) of password characters to improve distinguishability. These parameter changes are applied in a controlled manner to enhance user ability to read and enter passwords correctly, thereby improving authentication accuracy without excessive complexity.
Data Source
AI summary
A technique communicates a password to a user. The technique involves receiving, by processing circuitry, a request for a password. The technique further involves generating, by the processing circuitry, a password in response to the request. The password includes a series of alphanumeric digits which contains at least one number and at least one letter. The technique further involves displaying, by the processing circuitry, the password on a display screen. Each number displayed on the display screen has a first visual characteristic, and each letter displayed on the display screen has a visual characteristic that is different from the first visual characteristic. Such a technique enables disambiguation of an alphanumeric security code to a user.