One-Time Password Message Format Length Adjustment
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Solution Overview
Problem
One-time-passwords sent to smartphones can be inadvertently displayed on locked screens, compromising security when a third party has access to the device, as they may view the password without the user's authorization.
Innovation Solution
A computer-implemented method that redrafts or replaces the one-time-password message format to ensure it exceeds 120 characters, preventing display on locked-screen-preview mode without unlocking, thus forcing the use of a personal code for viewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the one-time-password message is displayed on the locked screen in preview mode, then the user can view the password without unlocking the screen (improving ease of operation), but security is compromised as third parties can access the password (worsening security)
Solution Approach 1:
The patent changes the parameter of message length by appending additional text to the one-time-password message until it exceeds the locked-screen-preview character limit (e.g., 120 characters). This forces the message to be hidden on locked screens, requiring screen unlocking for viewing, thereby resolving the contradiction between ease of viewing and security.
2Ease of operation
If the message preview length is limited to 120 characters or less, then the password may be displayed on the locked screen (improving ease of operation), but the security level decreases (worsening security)
Solution Approach 1:
The patent modifies the message length parameter by adding supplementary text to ensure the total message exceeds the locked-screen-preview limit. This parameter change effectively prevents unauthorized viewing on locked screens while maintaining the ability for authorized users to view the password after unlocking their devices.
3Ease of operation
If the one-time-password message is kept short, then it can be displayed in full on the locked screen preview (improving ease of operation), but third parties can read the complete password without authorization (worsening security)
Solution Approach 1:
The patent changes the message length parameter by appending additional text to exceed the locked-screen-preview character limit. This ensures that even though the message appears short to the user, it is actually long enough to prevent display on locked screens, thereby preventing unauthorized information disclosure while maintaining user convenience.
Data Source
AI summary
The invention refers to a method for increasing a security level of one-time-password message format of an organization and for disabling displays of one-time-passwords on screens of smartphones in a state of locked-screen-preview. The method includes the steps of having a computer system of an organization on which the format is saved and used for sending one-time-passwords to smartphones of clients of the organization, redrafting the format or replacing the format with a new format to include at least one hundred and twenty characters from the beginning of the redrafted or the new format until the digits that comprise the one-time-password, and using the redrafted or the new format for sending one-time-passwords to smartphones of clients of the organization. By that, the one-time-passwords are disabled to be shown on the screens of the smartphones that are in a state of locked-screen-preview.