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BeagleBone for Secret Agents by Josh Datko

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Chapter 4. Protecting GPG Keys with a Trusted Platform Module

After our investigation into BBB hardware security, we'll now use that technology to protect your personal encryption keys for the popular GPG software. GPG is a free implementation of the OpenPGP standard. This standard was developed based on the work of Philip Zimmerman and his Pretty Good Privacy (PGP) software. PGP has a complex socio-political backstory, which we'll briefly cover before getting into the project. For the project, we'll treat the BBB as a separate cryptographic co-processor and use the CryptoCape, with a keypad code entry device, to protect our GPG keys when they are not in use.

Specifically, we will do the following:

  • Tell you a little about the history and importance ...

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