Hacking the Xbox

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x Hacking the Xbox: An Introduction to Reverse Engineering Chapter 4 - Building a USB Adapter ........................... 67 Starting Materials ........................................................................................................ 67 Strategy ........................................................................................................................ 69 Implementation ........................................................................................................... 69 Chapter 5 - Replacing a Broken Power Supply .......... 73 Diagnosing a Broken Power Supply ....................................................................... 74 Replacing the Power Supply ..................................................................................... 76 Strategy .................................................................................................................................. 77 Procedure .................................................................................................................... 78 Building the Xbox Power Cable ....................................................................................... 78 Installing the Replacement Power Supply ........................................................................ 84 Operating with the Replacement Power Supply ............................................................. 85 Debugging Tips ................................................................................................................... 86 Chapter 6 - The Best Xbox Game: Security Hacking 89 First Encounters with a Paranoid Design .............................................................. 90 To Snarf a ROM ................................................................................................................. 90 An Encounter with Microsoft ........................................................................................... 92 Analyzing the ROM Contents ............................................................................................ 93 Chapter 7 - A Brief Primer on Security ...................... 101 Who Needs Security, Anyways? ............................................................................. 101 A Brief Primer on Cryptography .......................................................................... 104 Classes of Cryptographic Algorithms ............................................................................ 105 SHA-1 Hash ............................................................................................................. 109 TEA ........................................................................................................................... 111 RC-4 ............................................................................................................................ 113 RSA ............................................................................................................................ 114 The Rest of the Picture ..................................................................................................... 116 Chapter 8 - Reverse Engineering Xbox Security ...... 119 Extracting Secrets from Hardware ....................................................................... 119 Eavesdropping a High Speed Bus .................................................................................. 122 Tapping the Bus on a Budget ......................................................................................... 122 Building the Data Logger ............................................................................................. 129 Determining the Bus Order and Polarity ....................................................................... 131 Making Sense of the Captured Data ..................................................................... 131 Chapter 9 - Sneaking in the Back Door ..................... 137 Back Doors and Security Holes ............................................................................. 138 Visor Jam Table Attacks ................................................................................................... 139 MIST Premature Unmap Attack..................................................................................... 140 Microsoft Retaliates ................................................................................................. 141 Reverse Engineering v1.1 Security ........................................................................ 142 The Threat of Back Doors ..................................................................................... 147
Table of Contents xi Chapter 10 - More Hardware Projects........................ 151 The LPC Interface .................................................................................................... 151 LPC Interface on the Xbox ............................................................................................. 152 Using the LPC Interface ................................................................................................... 153 The Other 64 MB of SDRAM ............................................................................... 155 Xbox VGA ................................................................................................................ 157 Mass Storage Replacement ..................................................................................... 158 Chapter 11 - Developing Software for the Xbox ......... 161 Xbox-Linux ............................................................................................................... 161 Installing Xbox-Linux ....................................................................................................... 162 “Project B” ......................................................................................................................... 166 OpenXDK................................................................................................................. 171 Chapter 12 - Caveat Hacker ........................................ 173 Caveat Hacker: A Primer on Intellectual Property, by Lee Tien ..................... 175 Classical Intellectual Property Law: An Overview ....................................................... 175 Copyright ...................................................................................................................... 176 Patent ........................................................................................................................... 178 Trade Secrets ................................................................................................................ 179 The Constitutional Copyright Bargain ........................................................................... 179 The Traditional View of Reverse Engineering .............................................................. 180 Trade Secrecy and “Improper Means” ........................................................................... 180 Copyright Law and the Problem of Intermediate Copying .............................................. 181 Patent Law .................................................................................................................. 182 New Challenges for Reverse Engineers ......................................................................... 183 The Digital Millennium Copyright Act and the Problem of Unauthorized Access .......... 184 Unauthorized Access ..................................................................................................... 184 Circumvention Technologies............................................................................................. 185 Navigating the DMCA’s Exemptions ........................................................................... 185 1201(f): reverse-engineering for interoperability ........................................ 186 1201(g): encryption research ......................................................................... 187 1201(j): security research ................................................................................ 187 End-User License Agreements and Contractual Prohibitions on Reverse-Engineering ...... 187 Trade Secrets and the Economic Espionage Act ............................................................. 189 The Responsible Hacker: Ignorance Is No Defense .................................................... 189 Civil and Criminal Offenses and Penalties ...................................................................... 190 Reverse Engineering as “The Freedom to Tinker” and Other Legal Issues............. 191 Chapter 13 - Onward! .................................................. 193 The Hacking Community ........................................................................................ 193 Hacking Fora ...................................................................................................................... 194 Making a Contribution ..................................................................................................... 195 Trusted Computing.................................................................................................. 197 Taking a Step Back ............................................................................................................ 199 Palladium Versus TCPA.................................................................................................... 202 Hacking the Trusted PC.................................................................................................... 204 Looking Forward .............................................................................................................. 205 Concluding Thoughts .............................................................................................. 206
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Page 4 and 5: The US government is far and away t
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Page 9: In memory of Aaron Swartz
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Page 17: Acknowledgments I would like to tha
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CHAPTER 4 Building a USB Adapter Ca
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Strategy Chapter 4 - Building a USB
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Chapter 4 - Building a USB Adapter
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CHAPTER 5 Replacing a Broken Power
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Chapter 5 - Replacing a Broken Powe
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Strategy Chapter 5 - Replacing a Br
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Figure 5-6: The final cable assembl
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CHAPTER 8 Reverse Engineering Xbox
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Chapter 8 - Reverse Engineering Xbo
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clearance for motherboard component
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CHAPTER 9 Sneaking in the Back Door
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Chapter 9 - Sneaking in the Back Do
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Note Chapter 9 - Sneaking in the Ba
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CHAPTER 11 Developing Software for
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CHAPTER 12 Caveat Hacker Reverse en
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Chapter 12 - Caveat Hacker 183 Also
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Chapter 12 - Caveat Hacker 191 his
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APPENDIX D Getting Started with FPG
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Appendix D - Getting Started with F
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APPENDIX F Xbox Hardware Reference
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Appendix F - Xbox Hardware Referenc
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Appendix F - Xbox Hardware Referenc
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DVD-ROM Power Connector Appendix F
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Fan Connector Appendix F - Xbox Har
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268 continuity mode, in DMMs 19 Cop
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270 Molex 76 Moore’s Law 5 Mosis
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272 Virtex-II FPGA 123 Visor 139, 1
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Hacking the Xbox

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