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Method of Self-Adapted Tactile Sensitive Passcode Management Disclosure Number: IPCOM000247911D
Publication Date: 2016-Oct-11
Document File: 6 page(s) / 511K

Publishing Venue

The Prior Art Database


Disclosed is a method of self-adapted tactile sensitive passcode management for improving password complexity.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 47% of the total text.

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Method of Self-Adapted Tactile Sensitive Passcode Management

Combinations of alphanumeric characters are the most popular forms of passcodes for electronic devices that have either keyboard or keypad input mechanisms (including physical and virtual types). On a touch screen device, a virtual keyboard or keypad supports a traditional keystroke based input method.

One of the problems with a traditional mechanism for handling keypad-based passcodes is that a third party can easily discern the code by watching or tracing the user's finger movements. Many methods and apparatuses are available in an attempt to prevent other from peeking, guessing, and stealing a passcode. However, current approaches do not fully leverage the capabilities and advantages of touch screen input (e.g., characteristics of personal tactile sensitivity) for passcode handling and protection.

A method is needed that provides more secure passcode handling using enhanced personal tactile sensitivity

management on a touch screen.

The novel contribution is a method of self-adapted tactile sensitive passcode management. The solution defines a touch pad oriented and personal tactile sensitivity based passcode management method for improving passcode complexity and reducing the risk of finger movement tracing.

The method extends tactile sensitivity with touch duration and pressure characteristics to passcode entry. The system provides a tactile sensitivity graphical user interface (GUI) (e.g., keypad, keyboard) to support the user-defined passcode. The passcode is a combination of alphanumeric characters, touch duration, and touch pressure. Sensors spread across touchscreen devices detect tactile input.

The approach manages passcodes with configured tactile sensitivity rules, to which it maps touch screen haptic information. The system learns personalized tactile sensitivity patterns from each user's tactile input data and personal characteristics (e.g., finger-tapping habits). The supporting haptic feedback mechanism confirms tactile input. The system analyzes analysis and processes the normalized passcode to a program-recognizable data structure based on sensitivity rules and personal sensitivity patterns and characteristics.


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Figure 1: Key components

The system and method include the following server-side and client-side components.

Server Side (Passcode Handling Service)

Tactile Sensitive Passcode Enablement: a software module for enabling a tactile sensitive passcode for a user

who needs a secure passcode service

Security Configuration Manager: a user interface for users to configure security level of a passcode. The security setting may include the complexity of passcode, customized touch pressure grading, touch duration grading, etc.

Tactile Sensitivity Rule and Haptic Mapping: an algorithm to map touch screen haptic information to correlated


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tactile sensitivity rules. When the user inputs tactile data, the system can res...