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Codenames Board Generator
Mar 11, 2021 - 1500 Words -
Building a board generator for Codenames as a fun diversion
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ShmooCon 2017 Badge (and more) Contest - Solutions
Jan 20, 2017 - 8500 Words -
ShmooCon 13 Badge contest, scoring, solutions to the puzzles.
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ShmooCon 2017 Badge (and more) Contest - Challenges
Jan 20, 2017 - 1400 Words -
Just the challenges from the 2017 ShmooCon badge puzzle / contest. No spoilers.
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Poem Codes - WWII Crypto Techniques
Mar 27, 2016 - 2700 Words -
A rough introduction to how poem codes work and how they may have been used in practice by SOE agents in WWII.
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Praetorian Crypto Challenge
Aug 25, 2014 - 600 Words -
A fun set of (reasonably) quick crypto, puzzle, and hacking challenges from Praetorian.
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BSidesLV 2014 Badge Contest
Aug 10, 2014 - 4500 Words -
A badge puzzle / mini CTF at BSidesLV 2014. Created by Zack Fasel, sponsered by Urbane Security, won (somewhat soundly) by Darth Null.
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BSidesLV 2014 Badge Contest - Challenges
Aug 10, 2014 - 500 Words -
Just the challenges for the 2014 BSides Las Vegas badge puzzle / contest. No spoilers.
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Dark Reading on the VZ DBIR puzzle
May 6, 2014 - 100 Words -
Dark Reading article on the DBIR Puzzle
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BSidesROC 2014 - Crypto Puzzle
Apr 5, 2014 - 100 Words -
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ShmooCon 2014 - Crypto Puzzle Slides
Jan 19, 2014 - 100 Words -
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Good fun with bad crypto
Jan 15, 2014 - 1300 Words -
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DBIR Cover Challenge 2013
Apr 29, 2013 - 2400 Words -
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2013 DBIR Puzzle - Archived Comments
Apr 29, 2013 - 300 Words -
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ShmooCon 2013 - Crypto Puzzle Slides
Feb 17, 2013 - 100 Words -
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Fidelis Decode This 2012 - Archived Comments
Sep 10, 2012 - 100 Words -
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Winning the Decode This! puzzle at Black Hat
Aug 17, 2012 - 300 Words -
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Fidelis Security Systems' Decode This 2012
Aug 17, 2012 - 1200 Words -
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FidSecSys Decode This 2012 Ciphertext and Hints
Aug 17, 2012 - 200 Words -
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Verizon 2012 DBIR Challenge
Mar 28, 2012 - 400 Words -
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2012 DBIR Puzzle - Archived Comments
Mar 28, 2012 - 600 Words -
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2012 Verizon DBIR Cover Challenge
Mar 28, 2012 - 3700 Words -
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Verizon 2012 DBIR Sources
Mar 28, 2012 - 400 Words -
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BSides Phoenix 2012 Badge Puzzle
Feb 19, 2012 - 1500 Words -
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BSidesPHX 2012 Images
Feb 19, 2012 - 100 Words -
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ShmooCon 2008 Puzzle - Archived Comments
Feb 10, 2012 - 300 Words -
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ShmooCon 2008 Badge Puzzle
Feb 4, 2012 - 1900 Words -
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ShmooCon 2012 Puzzle - Archived Comments
Feb 4, 2012 - 1700 Words -
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ShmooCon 2012 Badge Puzzle
Feb 3, 2012 - 1800 Words -
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ShmooCon 2012 Puzzle Data
Feb 3, 2012 - 100 Words -
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ShmooCon 2012 Puzzle Slides
Feb 3, 2012 - 100 Words -
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BlackHat 2011 Fidelis Puzzle - Archived Comments
Aug 30, 2011 - 100 Words -
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How to Lose $1000 in Vegas Without Even Gambling
Aug 30, 2011 - 1900 Words -
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Fidelis Security "Decode This" Black Hat Challenge
Aug 30, 2011 - 100 Words -
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CarolinaCon Flag Puzzle - Archived Comments
Jul 28, 2011 - 200 Words -
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DEF CON 16 Puzzle - Archived Comments
Jul 28, 2011 - 100 Words -
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DEF CON 16 Punch Card Puzzle
Jul 27, 2011 - 1400 Words -
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CarolinaCon Flag Puzzle
May 8, 2011 - 1800 Words -
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The 2009 Verizon Data Breach Investigation Report
Apr 12, 2011 - 1500 Words -
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2009 Verizon DBIR Ciphertext
Apr 12, 2011 - 100 Words -
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ShmooCon 2011 Puzzle - Archived Comments
Feb 9, 2011 - 100 Words -
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ShmooCon 2011 Badge Contest
Feb 9, 2011 - 4400 Words -
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ShmooCon 7 Ciphertexts
Feb 9, 2011 - 1200 Words -
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Breaking a 147-Year-Old Message
Dec 30, 2010 - 4000 Words -
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Civil War Code Ciphertext
Dec 30, 2010 - 300 Words -
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Civil War Ciphers Fall!
Dec 30, 2010 - 900 Words -
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ToorCon 12 Puzzle - Archived Comments
Dec 7, 2010 - 400 Words -
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ToorCon 12 Badge Puzzle Ciphertexts
Dec 6, 2010 - 400 Words -
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ToorCon 12 Badge Puzzle
Dec 6, 2010 - 4500 Words -
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THOTCON Pre-Sale Code Puzzle
Nov 22, 2010 - 2700 Words -
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DEF CON 18 Crypto Challenge
Sep 2, 2010 - 3700 Words -
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DEF CON 18 Crypto Challenge Ciphertexts
Sep 2, 2010 - 600 Words -
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ShmooCon 2010 Badge Puzzle Data
Aug 29, 2010 - 100 Words -
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ShmooCon 2010 Badge Contest
Aug 29, 2010 - 2500 Words -
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Quahogcon Flag Puzzle - Archived Comments
Aug 24, 2010 - 300 Words -
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QuahogCon Flag Puzzle
May 20, 2010 - 1900 Words -
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THOTCON 0x1 - Archived Comments
May 11, 2010 - 200 Words -
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THOTCON 0x1 Puzzle
May 11, 2010 - 2900 Words -
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ShmooCon 2009 Badge Contest
Apr 27, 2010 - 2000 Words -
