Keys to the Kingdom

Impressioning, Privilege Escalation, Bumping, and Other Key-Based Attacks Against Physical Locks


  • Deviant Ollam, Member of the Board of Directors of the U.S. division of TOOOL, The Open Organisation Of Lockpickers and Security Auditor and Penetration Testing Consultant with The CORE Group

Lockpicking has become a popular topic with many in the security community. While many have chosen to learn the fine art of opening locks without keys, few people explore the fascinating methods of attack that are possible WITH keys. Keys to the Kingdom addresses the topics of impressioning, master key escalation, skeleton keys, and bumping attacks that go well beyond any treatment of these topics in the author’s previous book, Practical Lock Picking.

This material is all new and focuses on locks currently in use as well as ones that have recently emerged on the market. Hackers and pen testers or persons tasked with defending their infrastructure and property from invasion will find these techniques uniquely valuable. As with Deviant Ollam’s previous book, Practical Lock PickingKeys to the Kingdom includes full-color versions of all diagrams and photographs. Check out the companion website which includes instructional videos that provide readers with a full-on training seminar from the author.

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Information Security professionals of all levels, hackers, people whose jobs entail physical security (both defensive and offensive) and especially penetration testers. This book will also be popular with lock picking hobbyists, and those who purchased the author’s previous volume Practical Lock Picking.


Book information

  • Published: September 2012
  • Imprint: SYNGRESS
  • ISBN: 978-1-59749-983-5


"Ollam writes in a clear-cut and systematic manner, describing all of the details needed...For those who perform physical penetration testing, [this]…book will prove to be invaluable." and RSA Conference

Table of Contents

Chapter 1. Key Impressioning

Chapter 2. Foil Key/Soft Key Attacks

Chapter 3. Master Key Privilege Escalation

Chapter 4. Key Bumping

Chapter 5. Skeleton Keys

Chapter 6. Cast and Mold Attacks

Chapter 7. Set-Up Keys

Chapter 8. Sight Decoding of Keys from Photos or in Real Life

Chapter 9. Decoding & Attacking User Re-Keyable Locks

Chapter 10. Construction Keying

Appendix - Indentifying Locks Based on Key Bow or Keyway Profile