Dual Antenna MST Payment Security Against Wiretapping
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Solution Overview
Problem
Existing simple payment methods using magnetic stripe transmission (MST) signals are vulnerable to wiretapping, allowing malicious third parties to intercept and misuse the signals for unauthorized payments.
Innovation Solution
An electronic device equipped with dual antennas and a magnetic stripe transmission (MST) integrated circuit, where the processor controls the output of an MST signal and a jamming signal to interfere with wiretapping, ensuring secure payment transactions by synchronizing and directing these signals based on proximity and posture to the payment terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic device outputs the MST signal for simple payment, then payment convenience is improved, but the signal becomes vulnerable to wiretapping by malicious third parties
Solution Approach 1:
The patent applies preliminary anti-action by generating a protective electromagnetic field before the MST signal transmission occurs. The protective device creates this field in advance to preemptively counteract potential wiretapping attempts, ensuring that any malicious interception devices are neutralized before they can capture the payment signal.
Solution Approach 2:
The patent converts the harmful wiretapping signal into a beneficial protective mechanism. By detecting the presence of wiretapping devices and generating a protective electromagnetic field that induces false signals in these devices, the system transforms the threat of wiretapping into an active defense mechanism that protects the MST signal transmission.
2Reliability
If a protective electromagnetic field is generated to prevent wiretapping, then payment security is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing a protective device that serves multiple functions: it generates a protective electromagnetic field, detects wiretapping attempts, and induces false signals in malicious devices. This multi-functional approach consolidates several security mechanisms into a single integrated component, reducing overall system complexity while maintaining comprehensive protection.
Solution Approach 2:
The protective device applies self-service by autonomously detecting wiretapping attempts and generating appropriate protective electromagnetic fields without requiring external intervention. The device automatically adjusts its protective measures based on the detected threat level, eliminating the need for complex external control systems.
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
The solution effectively enhances payment security by preventing wiretapping of MST signals, reducing the time for interception, and ensuring only authorized transactions occur when the device is near a legitimate payment terminal.
Implementation Method 1
the electronic device itself outputs the MST signal such that the payment terminal can recognize the output magnetic field
Implementation Method 2
the other antenna outputs a jamming signal interfering with wiretapping of the MST signal
Data Source
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AI summary
An electronic device includes first and second antennas (430, 440), a magnetic stripe transmission (MST) integrated circuit (IC) (420), and a processor (410). The first antenna (430) is disposed between first and second surfaces of the electronic device and in parallel with the first and second surfaces of the electronic device. The first antenna outputs a signal in a first direction. The second antenna (440) is disposed between the second surface of the electronic device and the first antenna and in parallel with the first and second surfaces of the electronic device. The second antenna outputs a signal in a second direction. The MST IC controls the first and second antennas. When a payment mode is executed, the processor controls the MST IC such that one of the first and second antennas outputs an MST signal and the other of the first and second antenna outputs a jamming signal for interfering with wiretapping of the MST signal.