Electronic Stamp Signature Capture With Revocable Authentication
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Solution Overview
Problem
Existing electronic signature solutions require additional electronic devices and lack secure mechanisms for revocation of physical stamps, such as 'hanko' or 'chop', leading to potential misuse and liability issues.
Innovation Solution
An electronic stamp device embodied in a physical object, utilizing touchpoint detection technology with sensors like accelerometers, gyroscopes, and IMUs, along with cryptographic authentication and wireless connectivity, to provide secure electronic signatures without additional devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a physical stamp device is used for signatures, then the signature is binding and unique, but revocation becomes difficult or impossible if the individual retains the device
Solution Approach 1:
The patent creates a digital copy of the physical stamp device's identifying features and embeds it in a document. This digital copy serves as the binding signature element, while the physical device becomes a template rather than the actual signature carrier. Revocation is enabled by controlling access to and updates of the digital copy, independent of the physical device's location.
Solution Approach 2:
The patent replaces the mechanical stamping process with a digital imaging process. Instead of using physical ink or pigment to create a binding signature, the system uses digital capture and processing of the stamp device's identifying features. This substitution enables remote revocation through digital means while maintaining the physical stamp's unique visual characteristics.
2Reliability
If a physical stamp device is used, then the signature is unique and binding, but the device requires substantial action to revoke and creates liability if stolen or misused
Solution Approach 1:
By creating a digital copy of the stamp device's identifying features and making that the binding signature element, the system separates the unique identifier from the physical device. The digital copy can be revoked independently, preventing liability issues when physical devices are stolen or misused, while maintaining the uniqueness of the signature through the digital imprint.
Solution Approach 2:
The patent introduces a digital intermediary layer between the physical stamp device and the binding signature. This digital copy acts as a mediator that carries the binding authority and can be controlled remotely. It isolates the physical device from the legal consequences of its misuse, as the digital copy can be revoked without affecting the physical stamp's existence.
3Ease of operation
If electronic signature solutions are used, then revocation is enabled, but additional electronic devices are required beyond the physical stamp
Solution Approach 1:
The patent creates a digital copy of the physical stamp device's visual identifying features and embeds it directly in the document. This eliminates the need for separate electronic signature devices, as the digital copy serves both as the signature and as the revocation mechanism. The physical stamp's unique appearance is captured and processed digitally, requiring no additional specialized hardware.
Solution Approach 2:
The patent makes the digital copy of the stamp device serve multiple functions: it acts as the binding signature element, provides unique identification, enables revocation, and eliminates the need for additional electronic devices. The system uses the existing physical stamp's visual characteristics as the foundation for all electronic signature functions, creating a multi-functional solution from a single source.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure, verifiable electronic signatures with revocation capabilities, ensuring authorization integrity and reducing liability risks.
Implementation Method 1
The touchpoint detection technology may for example comprise any suitable sensor or combination thereof, including but not limited to an accelerometer, a gyroscope, a magnetometer or an IMU (inertial measurement unit)
Implementation Method 2
The touchpoint detection technology may for example comprise any suitable sensor or combination thereof, including but not limited to an accelerometer, a gyroscope, a magnetometer or an IMU (inertial measurement unit)
Implementation Method 3
The touchpoint detection technology may for example comprise any suitable sensor or combination thereof, including but not limited to an accelerometer, a gyroscope, a magnetometer or an IMU (inertial measurement unit)
Implementation Method 4
The touchpoint detection technology may for example comprise any suitable sensor or combination thereof, including but not limited to an accelerometer, a gyroscope, a magnetometer or an IMU (inertial measurement unit), a pressure sensor, or a combination thereof
Implementation Method 5
utilizing cryptographic or other secure methods. Further, the device may be able to leave an imprint on the physical or electronic document which is unique to the document through use of actuators or other nanoscale mechanical devices
Data Source
AI summary
An electronic stamp device, embodied in a physical object, which is secure and which is able to provide a verifiable electronic signature. The electronic stamp device comprises a touchpoint detection technology for detecting a plurality of touchpoints when the device is applied to a document, whether electronic or physical. The touchpoint detection technology may for example comprise any suitable sensor or combination thereof, including but not limited to an accelerometer, a gyroscope, a magnetometer or an IMU (inertial measurement unit), a pressure sensor, or a combination thereof. The accelerometer may comprise a 3D accelerometer. The gyroscope may comprise a 3D gyroscope. An IMU includes an accelerometer and a gyroscope. A plurality of such sensors may also be provided.