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Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data



Thomas D. Hedberg, Sylvere I. Krima, Jaime A. Camelio


Exchange and reuse of three-dimensional (3D)-product models is hampered by the absence of trust in product-lifecycle-data quality. The root cause of the missing trust is years of "silo" functions (e.g., engineering, manufacturing, quality assurance) using independent and disconnected processes. Those disconnected processes result in data exchanges that do not contain all of the required information for each (downstream) lifecycle process, which inhibits the reuse of product data and results in duplicate data. The X.509 standard, maintained by the Telecommunication Standardization Sector of the International Telecommunication Union (ITU-T), was first issued in 1988. Although originally intended as the authentication framework for the X.500 series for electronic directory services, the X.509 framework is used in a wide range of implementations outside the originally intended paradigm. These implementations range from encrypting websites to software-code signing. Yet, X.509 certificate use has not widely penetrated engineering and product. This paper provides a review of the use of X.509 certificates and proposes a solution for embedding X.509 digital certificates in 3D models for authentication, authorization, and traceability of product data. This paper also provides an example application within the Aerospace domain. Finally, the paper draws conclusions and provides recommendations for further research into using X.509 certificates in product lifecycle management (PLM) workflows to enable a product lifecycle of trust.
ASME Journal of Computing and Information Science in Engineering


Trustworthiness, Authentication, Authorization, Product Data Quality (PQD), CAD/CAM/CAE, Model- Based Enterprise (MBE)
Created July 14, 2016, Updated November 10, 2018