Obfuscation of Embedded Codes in Additive Manufactured Components for Product Authentication

Fei Chen, Jian H. Yu, Nikhil Gupta

Research output: Contribution to journalArticle

Abstract

Enhancement in the capabilities of additive manufacturing (AM) methods has led to development of many high-value components for aerospace, automotive, and medical fields. Security concerns, such as (a) a predominantly cloud based process chain of AM may be breached and stolen files can be used for unauthorized reproduction of parts and (b) legitimately acquired parts can be reverse engineered, need to be addressed for this field to protect intellectual property (IP) and deter counterfeiting or unauthorized production. In the present work, a method of embedding an identification code inside the parts manufactured by AM methods is presented, which takes advantage of the layer-by-layer manufacturing process. The code is obfuscated by segmenting it into a specific number of parts, which are distributed throughout a large number of printed layers. In this case, viewing the code only from a specific direction provides the correct visualization. A further obfuscation scheme is demonstrated that embeds multiple identification codes in the interpenetrating format. Only a specific set of processing conditions can lead to printing of the authentic code inside the part correctly. Numerous other conditions lead to printing of wrong code inside the part, which will lead to positive identification of counterfeit or unauthorized parts. Securing the AM process chain can help in accelerating the industrial applications of this versatile method.

Original languageEnglish (US)
Article number1900146
JournalAdvanced Engineering Materials
DOIs
StatePublished - Jan 1 2019

Fingerprint

3D printers
Authentication
manufacturing
products
Printing
printing
Intellectual property
intellectual property
Industrial applications
Visualization
files
embedding
format
Processing
augmentation

Keywords

  • 3D printing
  • additive manufacturing
  • anti-counterfeiting
  • reverse engineering
  • security

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Obfuscation of Embedded Codes in Additive Manufactured Components for Product Authentication. / Chen, Fei; Yu, Jian H.; Gupta, Nikhil.

In: Advanced Engineering Materials, 01.01.2019.

Research output: Contribution to journalArticle

@article{d37fb4efb2e4459ca731bc2ded74ff3f,
title = "Obfuscation of Embedded Codes in Additive Manufactured Components for Product Authentication",
abstract = "Enhancement in the capabilities of additive manufacturing (AM) methods has led to development of many high-value components for aerospace, automotive, and medical fields. Security concerns, such as (a) a predominantly cloud based process chain of AM may be breached and stolen files can be used for unauthorized reproduction of parts and (b) legitimately acquired parts can be reverse engineered, need to be addressed for this field to protect intellectual property (IP) and deter counterfeiting or unauthorized production. In the present work, a method of embedding an identification code inside the parts manufactured by AM methods is presented, which takes advantage of the layer-by-layer manufacturing process. The code is obfuscated by segmenting it into a specific number of parts, which are distributed throughout a large number of printed layers. In this case, viewing the code only from a specific direction provides the correct visualization. A further obfuscation scheme is demonstrated that embeds multiple identification codes in the interpenetrating format. Only a specific set of processing conditions can lead to printing of the authentic code inside the part correctly. Numerous other conditions lead to printing of wrong code inside the part, which will lead to positive identification of counterfeit or unauthorized parts. Securing the AM process chain can help in accelerating the industrial applications of this versatile method.",
keywords = "3D printing, additive manufacturing, anti-counterfeiting, reverse engineering, security",
author = "Fei Chen and Yu, {Jian H.} and Nikhil Gupta",
year = "2019",
month = "1",
day = "1",
doi = "10.1002/adem.201900146",
language = "English (US)",
journal = "Advanced Engineering Materials",
issn = "1438-1656",
publisher = "Wiley-VCH Verlag",

}

TY - JOUR

T1 - Obfuscation of Embedded Codes in Additive Manufactured Components for Product Authentication

AU - Chen, Fei

AU - Yu, Jian H.

AU - Gupta, Nikhil

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Enhancement in the capabilities of additive manufacturing (AM) methods has led to development of many high-value components for aerospace, automotive, and medical fields. Security concerns, such as (a) a predominantly cloud based process chain of AM may be breached and stolen files can be used for unauthorized reproduction of parts and (b) legitimately acquired parts can be reverse engineered, need to be addressed for this field to protect intellectual property (IP) and deter counterfeiting or unauthorized production. In the present work, a method of embedding an identification code inside the parts manufactured by AM methods is presented, which takes advantage of the layer-by-layer manufacturing process. The code is obfuscated by segmenting it into a specific number of parts, which are distributed throughout a large number of printed layers. In this case, viewing the code only from a specific direction provides the correct visualization. A further obfuscation scheme is demonstrated that embeds multiple identification codes in the interpenetrating format. Only a specific set of processing conditions can lead to printing of the authentic code inside the part correctly. Numerous other conditions lead to printing of wrong code inside the part, which will lead to positive identification of counterfeit or unauthorized parts. Securing the AM process chain can help in accelerating the industrial applications of this versatile method.

AB - Enhancement in the capabilities of additive manufacturing (AM) methods has led to development of many high-value components for aerospace, automotive, and medical fields. Security concerns, such as (a) a predominantly cloud based process chain of AM may be breached and stolen files can be used for unauthorized reproduction of parts and (b) legitimately acquired parts can be reverse engineered, need to be addressed for this field to protect intellectual property (IP) and deter counterfeiting or unauthorized production. In the present work, a method of embedding an identification code inside the parts manufactured by AM methods is presented, which takes advantage of the layer-by-layer manufacturing process. The code is obfuscated by segmenting it into a specific number of parts, which are distributed throughout a large number of printed layers. In this case, viewing the code only from a specific direction provides the correct visualization. A further obfuscation scheme is demonstrated that embeds multiple identification codes in the interpenetrating format. Only a specific set of processing conditions can lead to printing of the authentic code inside the part correctly. Numerous other conditions lead to printing of wrong code inside the part, which will lead to positive identification of counterfeit or unauthorized parts. Securing the AM process chain can help in accelerating the industrial applications of this versatile method.

KW - 3D printing

KW - additive manufacturing

KW - anti-counterfeiting

KW - reverse engineering

KW - security

UR - http://www.scopus.com/inward/record.url?scp=85064694368&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85064694368&partnerID=8YFLogxK

U2 - 10.1002/adem.201900146

DO - 10.1002/adem.201900146

M3 - Article

AN - SCOPUS:85064694368

JO - Advanced Engineering Materials

JF - Advanced Engineering Materials

SN - 1438-1656

M1 - 1900146

ER -