Lottery Ticket Authentication Code Generation and Verification

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Solution Overview

Problem

Current methods for authenticating lottery tickets, especially online tickets, are costly and logistically challenging, and vulnerable to insider attacks, as they rely on preprinted substrate and encryption techniques that can be labor-intensive and prone to errors.

Innovation Solution

A system and method for generating and verifying authentication codes across a network, where terminals create a document code using a mathematical function involving a key and bet data, transmitting this information to a server for storage and generating an authentication code, which is then printed on the ticket, allowing for secure verification without preprinted substrates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If preprinted substrate with serial numbering is used for lottery tickets, then document authenticity and integrity are improved, but manufacturing cost and logistical complexity increase

Engineering Contradiction:

Improvedocument authenticityVSAvoidlogistical complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the security function from the physical substrate and relocates it to the printed document content itself. Instead of relying on preprinted serial numbers on special paper stock, the security is embedded in the authentication code generated and printed along with the ticket data, eliminating the need for tracked preprinted substrates

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses digital copying of security data. The authentication code is generated electronically and printed on the ticket, creating a digital replica of security information that can be verified without physical security features. This replaces the physical security substrate with its digital equivalent

Inventive Principle:

Principle #26Copying

2Reliability

If preprinted substrate with serial numbering is used for lottery tickets, then document authenticity is improved, but manufacturing cost increases

Engineering Contradiction:

Improvedocument authenticityVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces expensive preprinted security substrates with inexpensive standard paper stock. The security is provided by the printed authentication code rather than the physical substrate, allowing use of cheap, disposable ticket stock that can be printed on-demand without expensive preprinting infrastructure

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Object-affected harmful factors

If encryption is applied to ticket serial numbers, then insider attacks are prevented, but processing burden and system complexity increase

Engineering Contradiction:

Improveinsider attack vulnerabilityVSAvoidprocessing burden

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent replaces complex encryption/decryption processing with a simpler authentication code verification system. Instead of encrypting serial numbers and requiring decryption during verification, the system generates an authentication code that can be directly compared against stored values, eliminating the need for cryptographic processing during ticket validation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Object-affected harmful factors

If encryption is applied to ticket serial numbers, then insider attacks are prevented, but redemption processing time increases

Engineering Contradiction:

Improveinsider attack vulnerabilityVSAvoidredemption processing time

Core Design Contradiction:

Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The patent performs authentication code generation and storage in advance during ticket issuance. When a ticket is presented for redemption, the verification process simply compares the printed authentication code against the pre-stored code, eliminating time-consuming encryption/decryption operations during the critical redemption moment

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8037307B2System and method for securing on-line documents using authentication codes

Publication Date: 2011.10.11 SCIENTIFIC GAMES LLC

AI summary

A system and method for providing an authentication code across a network for use in authentication of documents, such as printed lottery tickets. The system includes document-printing terminals that include a key that is used in a mathematical function with the bet information for a specific-game entry to generate a document code that is sent to a central server. The central server stores the received document code and then generates an authentication code for the document desired to be printed at the terminal, and sends the authentication code back to the terminal for printing on the issued document. The authentication code can be a further mathematical processing of the document code. Verification of the document occurs from comparison of the authentication code on the document and stored authentication and/or document codes at the server.