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  • Book Overview & Buying BeagleBone for Secret Agents
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BeagleBone for Secret Agents

BeagleBone for Secret Agents

By : Joshua Datko
4 (2)
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BeagleBone for Secret Agents

BeagleBone for Secret Agents

4 (2)
By: Joshua Datko
Buy this Book

Overview of this book

If you have some experience with the BeagleBone or similar embedded systems and want to learn more about security and privacy, this book is for you. Alternatively, if you have a security and privacy background and want to learn more about embedded development, this book is for you. You should have some familiarity with Linux systems and with the C and Python programming languages.
Table of Contents (8 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Creating Your BeagleBone Black Development Environment
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1. Creating Your BeagleBone Black Development Environment
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Introducing the BBB
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Creating an embedded development environment with Emacs
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Finding additional background information
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Summary
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2. Circumventing Censorship with a Tor Bridge
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2. Circumventing Censorship with a Tor Bridge
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Learning about Tor
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Installing Tor on BBB
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Understanding Tor exit policies
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Setting bridge-specific settings
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Starting your new Tor bridge
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Enabling port forwarding
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Adding physical interfaces to the bridge
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Determining your bandwidth with speedtest-cli
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Controlling the bridge with the Stem library
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Connecting to your obfuscated bridge
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Continuing with Tor-related projects
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Summary
3
3. Adding Hardware Security with the CryptoCape
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3. Adding Hardware Security with the CryptoCape
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Exploring the differences between hardware and software cryptography
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Touring the CryptoCape
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Discovering the I2C protocol
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Understanding the benefit of cape EEPROMs
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Creating an eLinux wiki site
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Keeping time with a real-time clock
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Trusting computing devices with a Trusted Platform Module
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Providing hardware authentication with ATSHA204 and ATECC108
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Encrypting EEPROM data with the ATAES132
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Combining the BBB with an ATmega328p
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Building a two-factor biometric system
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Summary
4
4. Protecting GPG Keys with a Trusted Platform Module
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4. Protecting GPG Keys with a Trusted Platform Module
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History of PGP
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Developing a threat model
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Generating GPG keys
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Protecting your GPG key with a TPM
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Adding the keypad
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Taking ownership of the TPM
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Extending a PCR
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Unlocking your key at startup
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Iterating on the threat model
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Summary
5
5. Chatting Off-the-Record
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5. Chatting Off-the-Record
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Communicating Off-the-Record – a background
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Installing BitlBee on the BeagleBone
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Adding OTR to your BitlBee server
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Marshalling your IRC connections with a Bouncer
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Extending the project
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Summary
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A. Selected Bibliography
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Chapter 1
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Chapter 2
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Chapter 3
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Chapter 4
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Chapter 5
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Index
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Index

Exploring the differences between hardware and software cryptography

In the following sections, we'll discuss the advantages and disadvantages of using hardware-based cryptography. The remaining projects in the book will use embedded hardware cryptographic devices, so it's important to know their capabilities and their limitations. Refer to Chapter 1, Creating Your BeagleBone Black Development Environment, for additional resources on cryptography and terms used in this section.

Understanding the advantages of hardware-based cryptography

For the advantages of hardware cryptography, we'll focus on the embedded environment since that is the target use case of BBB. While chip manufacturers may provide a laundry list of advantages, there are two main categories: cryptographic acceleration and key isolation features.

Offloading computation to a separate processor

One advantage of using a dedicated cryptographic co-processor is to offload computation to reduce CPU usage. A typical...

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