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Digital Manufacturing Certificate Toolkit: Adding Trust and Traceability to Product Data



Sylvere I. Krima, Thomas D. Hedberg


The NIST Digital Manufacturing Certificate (DMC) Toolkit is a toolkit designed specifically to provide certification -- digital signature using software and hardware certificates, and verification -- of manufacturing related product data. In its first release, the DMC toolkit supports signature and validation of data in the following formats: ISO 10303-21 (STEP), ISO 6983 (G-code), ISO 32000 (PDF) and 14739 (PRC, aka 3D PDF), and Quality Information Framework (QIF). The software offers both the Toolkit as a C# API and a fully-functional demonstration application. A use case and detailed description of the technology is available in an article titled, "Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data," published in the Journal of Computing and Information Science in Engineering (
Journal of Research (NIST JRES) -


digital signatures, manufacturing, traceability, trustworthiness


Krima, S. and Hedberg, T. (2016), Digital Manufacturing Certificate Toolkit: Adding Trust and Traceability to Product Data, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed June 14, 2024)


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Created November 29, 2016, Updated November 10, 2018