Portable Security Element Access Identifier Transmission

Solution Overview

Problem

Current methods for transmitting access identifiers for portable security elements, such as credit cards, are insecure and inefficient, as they rely on unencrypted SMS messages that can be intercepted and lack confirmation of delivery, while traditional postal methods are time-consuming and costly.

Innovation Solution

A method using a contactless interface to establish a communication connection between a telecommunications device and a portable security element, transmitting security-element-specific data to the device, then to a service facility, and finally the access identifier, ensuring encrypted and real-time transmission with confirmation of receipt.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If access identifier is transmitted by post, then delivery is reliable, but transmission time is long and cost is high

Engineering Contradiction:

Improvedelivery reliabilityVSAvoidtransmission time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the mechanical postal delivery system with an electronic communication system using mobile devices and networks. The access identifier is transmitted digitally through SMS or data messages, eliminating physical mail handling while maintaining delivery reliability through confirmation mechanisms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a confirmation mechanism as an intermediary step. The system sends a confirmation request to verify successful delivery of the access identifier, acting as a mediator between transmission and verification to ensure reliability without requiring physical delivery.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If access identifier is transmitted by SMS, then transmission is fast and cost is low, but security is poor due to unencrypted transmission

Engineering Contradiction:

Improvetransmission speedVSAvoidsecurity

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent introduces a confirmation mechanism as an intermediary step. The system sends a confirmation request to verify successful delivery of the access identifier, acting as a mediator between transmission and verification to ensure reliability without requiring physical delivery.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical postal delivery system with an electronic communication system using mobile devices and networks. The access identifier is transmitted digitally through SMS or data messages, eliminating physical mail handling while maintaining delivery reliability through confirmation mechanisms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Speed

If access identifier is transmitted by SMS, then transmission is fast, but confirmation of receipt is not obtained

Engineering Contradiction:

Improvetransmission speedVSAvoiddelivery confirmation

Core Design Contradiction:

SpeedVSLoss of information

Solution Approach 1:

The patent implements a feedback mechanism where the system sends a confirmation request after transmitting the access identifier. This feedback loop verifies whether the recipient successfully received the message, providing delivery confirmation without significantly delaying the overall transmission process.

Inventive Principle:

Principle #23Feedback

Data Source

PatentEP2833598B1Transmission of an access identifier

Publication Date: 2017.06.28 GIESECKE & DEVRIENT EPAYMENTS GMBH

Figure 1~2

AI summary

The invention relates to a method for transmitting an access identifier of a portable security element (12) to a telecommunications device (10). Security element-specific data is first transmitted to the telecommunications device (10) via a first communication link (20). This data, together with telecommunications device-specific data, is then transmitted to a service unit (16) via a second communication link (22). The service unit (16) then transmits an access identifier of the portable security element (12) to the telecommunications device (10). The access identifier can be displayed on a display unit (30) of the telecommunications device (10).