Concept: Open Hardware USB based TPM and Crypto Device

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After a few hours designing in EAGLE CAD, we have developed a rough concept of the Open Hardware USB based TPM.   A SAM4S microcontroller from Atmel featuring an ARM Cortex M4 which operates at 120MHz maximum speed.  This device contains Atmel’s full suite of CryptoAuthentication and an SPI version of their TCG 1.2 Trusted Platform Module.

Atmel offers an evaluation kit for the Atmel CryptoAuthentication™ Family in the same enclosure we intend on building the openTPM. The enclosure is a USB-31 series from Polycase.

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