Method for Using Cryptography to Protect Deployable Rapid On-Site Manufacturing 3D Printing Systems and Enable a Single Time Printing Protocol

摘要

A webserver is comprised of a registry, database, web store, arbiter, and signature verifier with device public keys. An external trusted machine provides a first key pair to the server system. The database contains encrypted copies of developer software/models, using the Trusted Machine to encrypt. The Signature Verifier verifies that devices requesting code are truly safe devices provided from a third party. The Trusted Machine is an extremely secure machine with a first key pair “A” used to encrypt and decrypt entries into the database safely. A trusted module is associated with the printer which comprises a random sequence generator. The printer generates keys required for printing and authorization using a Common Access Card (CAC). Next the server would encrypt the model with the keys generated by the trusted module of the printer to allow for the printer to decrypt the keys and effectuate printing of the encrypted model.