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BSidesDC 2017 Kids crypto challenge

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Andrew Shumate
Andrew Shumate

This document contains clues and puzzles from a kids' crypto challenge event. It includes clues written in simple cipher texts that can be decoded using keys from previous clues or other context clues. The puzzles involve decoding cipher texts to reveal answers related to ninjas and their equipment.

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BsidesDC 2017 Kids crypto challenge
I discovered an error in the final puzzle during the con and cant remember if I fixed it here. Please hit me up on twitter @andrewshumate if you have any comments or find any errors
Clue: Lets see if you can ace this first puzzle, it will be key to solving the next one.
Clue: Ninjas didnt play fair, and neither do we, youll only need 5 letters from the last puzzle to solve this one. Were sure youll figure it out in the end Yi tt er hz fo gn di kr lp rn cr ze kr rb hk yr ft qu mu mi rf td iq kb lo rd ku um uk rd cK
Clue: The ninja faded into obscurity in the 17th century 18 centuries after this emperor was born. Use that to find the name for this piece of ninja equipment. xqoub
Clue: Maybe if youre diplomatic Chnw wy tuh bgmr rt zhr vstsrl cl tuhgk fnpcas tuskn gy bonwdg
Clue: Weve seen this cipher before, but I think the Ninjas stole the key, so I changed the way they key is used, youll have to use it twice. tjti rt dve pyvdb fdeos vk cug nneof qbdt ekbl pfjr rsb tgdmhrl
This URL and an ASCII table will be helpful in solving the next puzzle https://en.wikipedia.org/wiki/Japanese_cryptology_from_the_1500s_t o_Meiji
BSidesDC 2017 Kids crypto challenge
泣 泣
Solution
BSidesDC 2017 Kids crypto challenge
Ninjas would carry these to deliver glancing blows to their opponents making them believe they were being attacked by invisible swordsmen Answer: shuriken
Well known for being sneaky ninja lived up to the name which means to sneak Answer: Shinobi
Answer: Gando
What is the name of the sensei of these famous green tv ninjas Answer: Splinter
Key: SPLINTER Alphabet: SPLINTERABCDFGHJKMOQUVWXYZ this is the sworn enemy of the ninja hint they wear eye patches Answer: Pirate
78 73 78 74 65 83 83 85 67 75 80 73 82 65 84 69 83 82 85 76 69 NINJAS SUCK PIRATES RULE

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BSidesDC 2017 Kids crypto challenge

  • 2. I discovered an error in the final puzzle during the con and cant remember if I fixed it here. Please hit me up on twitter @andrewshumate if you have any comments or find any errors
  • 3. Clue: Lets see if you can ace this first puzzle, it will be key to solving the next one.
  • 4. Clue: Ninjas didnt play fair, and neither do we, youll only need 5 letters from the last puzzle to solve this one. Were sure youll figure it out in the end Yi tt er hz fo gn di kr lp rn cr ze kr rb hk yr ft qu mu mi rf td iq kb lo rd ku um uk rd cK
  • 5. Clue: The ninja faded into obscurity in the 17th century 18 centuries after this emperor was born. Use that to find the name for this piece of ninja equipment. xqoub
  • 6. Clue: Maybe if youre diplomatic Chnw wy tuh bgmr rt zhr vstsrl cl tuhgk fnpcas tuskn gy bonwdg
  • 7. Clue: Weve seen this cipher before, but I think the Ninjas stole the key, so I changed the way they key is used, youll have to use it twice. tjti rt dve pyvdb fdeos vk cug nneof qbdt ekbl pfjr rsb tgdmhrl
  • 8. This URL and an ASCII table will be helpful in solving the next puzzle https://en.wikipedia.org/wiki/Japanese_cryptology_from_the_1500s_t o_Meiji
  • 13. Ninjas would carry these to deliver glancing blows to their opponents making them believe they were being attacked by invisible swordsmen Answer: shuriken
  • 14. Well known for being sneaky ninja lived up to the name which means to sneak Answer: Shinobi
  • 16. What is the name of the sensei of these famous green tv ninjas Answer: Splinter
  • 17. Key: SPLINTER Alphabet: SPLINTERABCDFGHJKMOQUVWXYZ this is the sworn enemy of the ninja hint they wear eye patches Answer: Pirate
  • 18. 78 73 78 74 65 83 83 85 67 75 80 73 82 65 84 69 83 82 85 76 69 NINJAS SUCK PIRATES RULE

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